Auxiliary examination device for oral medicine

Abstract

The invention discloses an oral medicine auxiliary examination device which comprises a cleaning barrel and an oral cavity opening device, the cleaning barrel is placed on a horizontal table top, the oral cavity opening device is clamped and placed in the cleaning barrel, and the oral cavity opening device further comprises a tongue depressor, an upper and lower jaw opening structure, a tongue limiting device and a mouth opening device. The invention belongs to the technical field of oral examination equipment, and particularly relates to an auxiliary examination device for oral medicine. The device can effectively support the upper jaw and the lower jaw of the oral cavity, enables the interior of the oral cavity to be completely exposed, is not affected by the tooth condition of a patient, is suitable for most people, and is easy, convenient and rapid to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of oral examination equipment, and specifically refers to an oral medicine auxiliary examination device. Background Art

[0002] Oral examination refers to a careful examination and evaluation of the oral cavity by a doctor or dentist. This examination usually includes dental examination, periodontal examination, oral mucosa examination, oral cancer screening, tooth alignment and bite examination, etc. All the above examinations require the patient to open his mouth and remain stable so that the doctor can observe the oral condition.

[0003] Some oral cancer patients need to have some facial muscles removed after surgery, which makes it difficult for the muscles around the mouth to control the opening and closing of the lips. As a result, the height of the patient's upper and lower lips is much smaller than that of a normal person. Therefore, external objects must be used to effectively open the lips. Existing auxiliary devices include C-shaped openers (which open the skin and muscles around the lips for teeth inspection) and spiral openers (which open the patient's mouth by rotating, and require the patient's teeth to be stable and able to effectively support the opener). One of the above two opening devices does not completely open the mouth, and the other has certain requirements for the oral teeth, and is not completely suitable for the general public. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an oral medicine auxiliary examination device, which can effectively support the upper and lower jaws of the oral cavity, so that the inside of the oral cavity is completely exposed, and is not affected by the patient's dental condition. It is applicable to most people and is simple, convenient and fast to operate.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides an oral medicine auxiliary examination device, including a cleaning bucket and an oral opening device, the cleaning bucket is placed on a horizontal table, and the oral opening device is clamped and placed in the cleaning bucket; the oral opening device also includes a tongue depressor, an upper and lower jaw opening structure, a tongue limiting device and a mouth opening device, the tongue depressor is pressed on the tongue, the upper and lower jaw opening structure is clamped and slidably set on the tongue depressor, the tongue limiting device is clamped and rotatably set on the tongue depressor, and the mouth opening device is slidably installed at the end of the tongue depressor.

[0006] Furthermore, the upper and lower jaw support structure includes a telescopic rod assembly, a telescopic rod telescopic slide groove, a telescopic rod edge limiting slot, an upper jaw abutment plate, a fixed link, a sliding link and a link slide groove. The telescopic rod telescopic slide groove is fixedly arranged on the tongue depressor, the telescopic rod edge limiting slot is connected to the telescopic rod telescopic slide groove, a clamping block is provided on the telescopic rod assembly, and the telescopic rod assembly slides in the telescopic rod telescopic slide groove through the clamping block, the fixed link is clamped and rotatably arranged on the hinge joint at the end point of the telescopic rod assembly, the sliding link is clamped and rotatably arranged on the hinge joint of the telescopic rod assembly, the upper jaw abutment plate is fixedly connected to the fixed link, the link slide groove is fixedly arranged on the bottom wall of the upper jaw abutment plate, and the sliding link is clamped and slidably arranged in the link slide groove.

[0007] Preferably, the top wall of the maxillary abutment plate is configured as an arc-shaped protruding structure, and the edge of the maxillary abutment plate is configured as a chamfered corner.

[0008] Furthermore, the tongue limiting device includes a tongue side grab plate, a hinge groove, a pressure plate, a pressure connecting rod and a vertical slot. The vertical slot passes through the upper and lower walls of the tongue depressor. The pressure connecting rod is slidably arranged in the vertical slot, and the pressure connecting rod and the vertical slot are connected by a spring. The pressure plate is fixedly mounted on the bottom wall of the pressure connecting rod, and the pressure plate is in contact with the upper wall of the tongue. The hinge groove is fixedly arranged on the side wall of the tongue depressor. The tongue side grab plate is rotatably arranged in the hinge groove, and the tongue side grab plate is in contact with the upper wall of the pressure plate.

[0009] Preferably, the tongue side gripping plate is configured as a curved surface structure, and the tongue side gripping plate and the hinge groove are connected via a torsion spring.

[0010] Furthermore, the mouth opening device includes opening plates on both sides of the mouth, connecting plates on both sides, a cross connecting plate, a handle, a sliding limit plate and a limit plate placement slot, the limit plate placement slot is connected to the limit slot on the edge of the telescopic rod, the sliding limit plate is engaged with the limit plate placement slot, the cross connecting plate is engaged and slides along the limit plate placement slot, the connecting plates on both sides are fixedly connected to the cross connecting plate, the handle is fixedly set on the connecting plates on both sides, and the opening plates on both sides of the mouth are fixedly set on the connecting plates on both sides.

[0011] Furthermore, the opening plates on both sides of the mouth are configured as trumpet-shaped structures.

[0012] Furthermore, a triangular prism-shaped protrusion is arrayed on one side of the sliding limit plate, a small pull rod is provided on the other side of the sliding limit plate, the cross connecting plate is in contact with the protrusion, the small pull rod passes through the side wall of the tongue depressor, the cross connecting plate is connected to the limit plate placement groove by a spring, and the small pull rod is connected to the limit plate placement groove by a spring.

[0013] Preferably, the cross connecting plate is engaged and rotatably connected with the telescopic rod assembly, and the telescopic rod assembly can be telescoped and folded by pushing the cross connecting plate.

[0014] Furthermore, the cleaning bucket includes a cleaning cylinder, a contact cleaning slot, a vertical placement slot and a cleaning roller. The cleaning cylinder is placed on a table, the contact cleaning slot is arranged in the cleaning cylinder, the vertical placement slot is connected to the upper wall of the contact cleaning slot, and the cleaning roller is engaged and rotatably arranged on the side wall of the contact cleaning slot.

[0015] Furthermore, the contact cleaning groove is set to be a three-dimensional rectangle, and the side walls of the contact cleaning groove are set to be chamfered, the bottom wall of the contact cleaning groove is provided with a small hole that penetrates the cleaning cylinder, the vertical placement groove is set to be cylindrical, and the connection between the contact cleaning groove and the vertical placement groove is provided with chamfered corners.

[0016] Furthermore, the contact cleaning groove facilitates the insertion of the tongue depressor and prevents the tongue side gripper from entering, thereby limiting the spatial height of the tongue depressor.

[0017] Furthermore, the opening plates on both sides of the mouth are made of transparent glass.

[0018] The present invention provides an auxiliary oral examination device, which has the following beneficial effects: (1) The telescopic rod assembly is used to convert the horizontal power of the cross-connecting plate into vertical pressure, so that the maxillary plate moves upward and supports the patient's maxilla. At the same time, the pressure at the bottom of the tongue depressor is converted into kinetic energy for the deflection of the tongue side gripping plate. When the pressure plate slides upward, the tongue side gripping plate contacts the pressure plate and rotates. The tongue side gripping plate limits the movement direction of the tongue, thereby limiting the activity area of ​​the tongue in the oral cavity, which is beneficial for the doctor to observe the oral cavity without being blocked by the tongue. (2) Two sets of curved (half-trumpet-shaped) opening plates on both sides of the mouth are used to achieve the effect of opening the periphery of the lips under the push of the cross-connecting plate. In this process, the protrusions on the surface of the sliding limit plate limit the cross-connecting plate, and the opening plates on both sides of the mouth are therefore subject to reverse limiting effects during the movement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of an oral medicine auxiliary examination device provided by the present invention; Figure 2 A three-dimensional diagram of an oral opening device; Figure 3 A three-dimensional cross-sectional view of a cleaning bucket; Figure 4 A top view of the oral opening device; Figure 5 A bottom view of the oral opening device; Figure 6 This is a left side view of the oral opening device; Figure 7 This is a rear view of the oral opening device; Figure 8 A top view of the cleaning bucket; Fig. 9 This is an exploded view of the oral expansion device; Fig.10 It is a right side cross-sectional view of the oral opening device; Fig.11 It is a schematic diagram of the top view structure of the sliding limit plate and the protrusion; Fig.12 for Fig.10 A partial enlarged view of part A.

[0020] The components include: 1. cleaning bucket, 2. oral opening device, 3. tongue depressor, 4. upper and lower jaw opening structure, 5. tongue limiting device, 6. mouth opening device, 7. telescopic rod assembly, 8. telescopic rod telescopic slide, 9. telescopic rod edge limiting slot, 10. upper jaw abutment plate, 11. fixed connecting rod, 12. sliding connecting rod, 13. connecting rod slide, 14. tongue side grabbing plate, 15. hinge slot, 16. pressure plate, 17. pressure connecting rod, 18. vertical slot, 19. opening plates on both sides of the mouth, 20. connecting plates on both sides, 21. cross connecting plate, 22. handle, 23. sliding limiting plate, 24. limiting plate placement slot, 25. protrusion, 26. small pull rod, 27. cleaning cylinder, 28. contact cleaning slot, 29. vertical placement slot, 30. cleaning roller.

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described 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; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0024] like Figure 1 , Figure 3 , Figure 8 As shown, an oral medicine auxiliary examination device provided by the present invention includes a cleaning bucket 1 and an oral opening device 2. The cleaning bucket 1 is placed on a horizontal table, and the oral opening device 2 is placed in the cleaning bucket 1 in an engaged manner; the cleaning bucket 1 includes a cleaning cylinder 27, a contact cleaning groove 28, a vertical placement groove 29 and a cleaning roller 30. The cleaning cylinder 27 is placed on the table, the contact cleaning groove 28 is arranged in the cleaning cylinder 27, the vertical placement groove 29 is connected to the upper wall of the contact cleaning groove 28, and the cleaning roller 30 is engaged and rotatably arranged on the side wall of the contact cleaning groove 28.

[0025] like Figure 3 , Figure 8 As shown, the contact cleaning groove 28 is set to be a three-dimensional rectangle, and the side walls of the contact cleaning groove 28 are set to be chamfered, the bottom wall of the contact cleaning groove 28 is provided with a small hole that penetrates the cleaning cylinder 27, the vertical placement groove 29 is set to be cylindrical, and the connection between the contact cleaning groove 28 and the vertical placement groove 29 is provided with chamfered corners.

[0026] like Figure 5 , Figure 6 , Fig. 9 , Fig.12 As shown, the oral cavity stretching device 2 includes a tongue depressor 3, an upper and lower jaw stretching structure 4, a tongue limiting device 5 and a mouth stretching device 6. The tongue depressor 3 is pressed on the tongue, the upper and lower jaw stretching structure 4 is slidably arranged on the tongue depressor 3, the tongue limiting device 5 is rotatably arranged on the tongue depressor 3, and the mouth stretching device 6 is slidably installed at the end of the tongue depressor 3.

[0027] like Figure 7 , Fig. 9 , Fig.12As shown, the upper and lower jaw support structure 4 includes a telescopic rod assembly 7, a telescopic rod telescopic slide 8, a telescopic rod edge limiting slot 9, an upper jaw abutment plate 10, a fixed link 11, a sliding link 12 and a link slide 13. The telescopic rod telescopic slide 8 is fixedly arranged on the tongue depressor 3, the telescopic rod edge limiting slot 9 is connected to the telescopic rod telescopic slide 8, a clamping block is provided on the telescopic rod assembly 7, and the telescopic rod assembly 7 slides in the telescopic rod telescopic slide 8 through the clamping block. The fixed link 11 is engaged and rotatably arranged on the hinge joint at the end point of the telescopic rod assembly 7, and the sliding link 12 is engaged and rotatably arranged on the hinge joint of the telescopic rod assembly 7. The upper jaw abutment plate 10 is fixedly connected to the fixed link 11, the link slide 13 is fixedly arranged on the bottom wall of the upper jaw abutment plate 10, and the sliding link 12 is engaged and slidably arranged in the link slide 13.

[0028] like Figure 7 , Fig. 9 As shown, the top wall of the maxillary abutment plate 10 is configured as an arc-shaped protruding structure, and the edge of the maxillary abutment plate 10 is configured as a chamfered corner.

[0029] like Figure 7 , Fig. 9 As shown, the tongue limiting device 5 includes a tongue side grab plate 14, a hinge groove 15, a pressure plate 16, a pressure connecting rod 17 and a vertical slot 18. The vertical slot 18 runs through the upper and lower walls of the tongue depressor 3. The pressure connecting rod 17 is slidably arranged in the vertical slot 18, and the pressure connecting rod 17 and the vertical slot 18 are connected by a spring. The pressure plate 16 is fixedly mounted on the bottom wall of the pressure connecting rod 17, and the pressure plate 16 is in contact with the upper wall of the tongue. The hinge groove 15 is fixedly arranged on the side wall of the tongue depressor 3. The tongue side grab plate 14 is rotatably arranged in the hinge groove 15, and the tongue side grab plate 14 is in contact with the upper wall of the pressure plate 16.

[0030] like Figure 7 , Fig. 9 As shown, the tongue side gripping plate 14 is configured as a curved surface structure, and the tongue side gripping plate 14 and the hinge groove 15 are connected via a torsion spring.

[0031] like Figure 2 , Figure 4 , Figure 7 , Fig. 9 , Fig.10 , Fig.11As shown, the mouth opening device 6 includes opening plates 19 on both sides of the mouth, connecting plates 20 on both sides, a cross connecting plate 21, a handle 22, a sliding limit plate 23 and a limit plate placement slot 24. The limit plate placement slot 24 is connected to the limit card slot 9 on the edge of the telescopic rod, the sliding limit plate 23 is engaged with the limit plate placement slot 24, the cross connecting plate 21 is engaged and slides along the limit plate placement slot 24, the connecting plates 20 on both sides are fixedly connected to the cross connecting plate 21, the handle 22 is fixedly set on the connecting plates 20 on both sides, and the opening plates 19 on both sides of the mouth are fixedly set on the connecting plates 20 on both sides.

[0032] like Figure 4 , Figure 7 As shown, the opening plates 19 on both sides of the mouth are configured as trumpet-shaped structures.

[0033] like Fig. 9 , Fig.11 As shown, a triangular prism-shaped protrusion 25 is arranged in an array on one side of the sliding limit plate 23, a small pull rod 26 is arranged on the other side of the sliding limit plate 23, the cross connecting plate 21 is in contact with the protrusion 25, the small pull rod 26 passes through the side wall of the tongue depressor 3, the cross connecting plate 21 is connected to the limit plate placement groove 24 by a spring, and the small pull rod 26 is connected to the limit plate placement groove 24 by a spring.

[0034] like Figure 2 , Fig. 9 As shown, the cross connecting plate 21 is engaged and rotatably connected with the telescopic rod assembly 7.

[0035] like Figure 4 , Figure 7 As shown, the opening plates 19 on both sides of the mouth are made of transparent glass.

[0036] When in use, the tongue depressor 3 is directly inserted into the patient's oral cavity. At this time, the telescopic rod assembly 7 is not compressed. Therefore, the overall thickness of the device is composed of the thickness of the tongue depressor 3, the maxillary abutment plate 10 and the compression plate 16, and the width of the device is composed of the width of the two groups of tongue side grasping plates 14 and the tongue depressor 3. At the same time, the width of the tongue depressor 3 is much smaller than the width between the two groups of mouth-side opening plates 19; when the tongue depressor 3 is completely moved above the tongue, the handle 22 is pushed, and under the action of the cross connecting plate 21, the mouth-side opening plates 19 are driven to move toward the mouth, and the mouth is opened by the curved plates on both sides. During the sliding process, the cross connecting plate 21 contacts the triangular prism-shaped protrusions 25 on the sliding limit plate 23, and each contact The small spring on the sliding limit plate 23 will be deformed. When the opening plates 19 on both sides of the mouth move to the point where they can no longer move, the protrusions 25 play a reverse limiting role on the cross connecting plate 21, preventing the cross connecting plate 21 from being pulled back to the initial position by the spring, thereby allowing the opening plates 19 on both sides of the mouth to always maintain a supporting effect on the patient's mouth; in the process of pushing the handle 22 with one hand, the other hand grabs the end of the tongue depressor 3, and after one end of the telescopic rod assembly 7 is squeezed, the telescopic rod assembly 7 is folded, pushing the maxillary support plate 10 toward the upper wall of the oral cavity, and the sliding connecting rod 12 slides in the connecting rod slide groove 13. The fixed connecting rod 11 is fixed relative to the maxillary support plate 10, but the fixed connecting rod 11 rotates slightly at the hinge point of the telescopic rod assembly 7, and the sliding The connecting rod 12 is also rotated at an appropriate angle on the telescopic rod assembly 7, and the process is carried out until the maxillary abutment plate 10 is completely pressed on the maxillary surface of the oral cavity; during the fixation of the maxilla, the pressure plate 16 below the tongue depressor 3 is pressed downward, mainly due to the pressure between the maxillary abutment plate 10 and the maxilla, resulting in the transfer of pressure from above to the tongue depressor 3, so that the pressure plate 16 presses the tongue, and when the pressure plate 16 is squeezed with the tongue, the pressure-bearing connecting rod 17 slides upward from the vertical slot 18, and at the same time, the pressure plate 16 contacts the bottom wall of the tongue side gripping plate 14, so that the tongue side gripping plate 14 is turned over and the side of the tongue is gripped, thereby preventing the tongue from sliding to both sides and affecting the doctor's examination of the patient's oral cavity inner wall; at this time, the patient's lips and upper The space between the mandibles is completely opened to facilitate observation by the doctor; after the inspection of the tongue depressor 3, the small pull rod 26 on the side wall of the sliding limit plate 23 is pulled outward, and after the protrusion 25 no longer has a limiting effect on the cross connecting plate 21, the handle 22 is pulled backward, and at the same time, the spring connected to the cross connecting plate 21 contracts, and the opening plates 19 on both sides of the mouth are contracted toward the end of the tongue depressor 3, the telescopic rod assembly 7 is flat, the maxillary abutment plate 10 is separated from the maxillary surface, and the tongue side gripping plate 14 is separated from the tongue; then the tongue depressor 3 is inserted into the cleaning cylinder 27, and the tongue side gripping plate 14 is limited in the vertical placement groove 29 and cannot move downward, and the cleaning roller 30 in the contact cleaning groove 28 contacts and cleans the two sides of the tongue depressor 3 to remove the surface oral epidermis, which is convenient for next use.

[0037] 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.

[0038] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An oral medicine auxiliary examination device, characterized in that: The cleaning bucket (1) and the oral cavity opening device (2) are provided. The cleaning bucket (1) is placed on a horizontal table, and the oral cavity opening device (2) is placed in the cleaning bucket (1) in a snap-fit ​​manner. The oral cavity opening device (2) comprises a tongue depressor (3), an upper and lower jaw opening structure (4), a tongue stopper (5), and a mouth opening device (6). The tongue depressor (3) is pressed on the tongue, the upper and lower jaw opening structure (4) is snap-fitted and slidably arranged on the tongue depressor (3), the tongue stopper (5) is snap-fitted and rotatably arranged on the tongue depressor (3), and the mouth opening device (6) is slidably mounted on the end of the tongue depressor (3).

2. The oral medicine auxiliary examination device according to claim 1, characterized in that: The upper and lower jaw opening structure (4) comprises a telescopic rod assembly (7), a telescopic rod telescopic slide groove (8), a telescopic rod edge limiting slot (9), an upper jaw abutment plate (10), a fixed connecting rod (11), a sliding connecting rod (12) and a connecting rod slide groove (13); the telescopic rod telescopic slide groove (8) is fixedly arranged on the tongue depressor (3); the telescopic rod edge limiting slot (9) is connected to the telescopic rod telescopic slide groove (8); a block is provided on the telescopic rod assembly (7); and the telescopic rod assembly (7) is connected to the tongue depressor (3). The locking block is engaged and slid in the telescopic slide groove (8) of the telescopic rod, the fixed connecting rod (11) is engaged and rotatably arranged on the hinge joint at the end point of the telescopic rod assembly (7), the sliding connecting rod (12) is engaged and rotatably arranged on the hinge joint of the telescopic rod assembly (7), the upper jaw support plate (10) is fixedly connected to the fixed connecting rod (11), the connecting rod slide groove (13) is fixedly arranged on the bottom wall of the upper jaw support plate (10), and the sliding connecting rod (12) is engaged and slidably arranged in the connecting rod slide groove (13).

3. The oral medicine auxiliary examination device according to claim 2, characterized in that: The top wall of the maxillary abutment plate (10) is configured as an arc-shaped protruding structure, and the edge of the maxillary abutment plate (10) is configured as a chamfered corner.

4. The oral medicine auxiliary examination device according to claim 3, characterized in that: The tongue limiting device (5) comprises a tongue side gripping plate (14), a hinge groove (15), a pressure plate (16), a pressure connecting rod (17) and a vertical direction clamping groove (18); the vertical direction clamping groove (18) penetrates the upper and lower walls of the tongue depressor (3); the pressure connecting rod (17) is slidably arranged in the vertical direction clamping groove (18), and the pressure connecting rod (17) and the vertical direction clamping groove (18) are connected via a spring; the pressure plate (16) is fixedly mounted on the bottom wall of the pressure connecting rod (17); the pressure plate (16) is in contact with the upper wall of the tongue; the hinge groove (15) is fixedly arranged on the side wall of the tongue depressor (3); the tongue side gripping plate (14) is rotatably arranged in the hinge groove (15), and the tongue side gripping plate (14) is in contact with the upper wall of the pressure plate (16).

5. The oral medicine auxiliary examination device according to claim 4, characterized in that: The tongue side gripping plate (14) is configured as a curved surface structure, and the tongue side gripping plate (14) and the hinge groove (15) are connected via a torsion spring.

6. The oral medicine auxiliary examination device according to claim 5, characterized in that: The mouth opening device (6) comprises mouth opening plates (19) on both sides, connecting plates (20) on both sides, a cross connecting plate (21), a handle (22), a sliding limit plate (23) and a limit plate placement groove (24); the limit plate placement groove (24) is connected to the limit card groove (9) on the edge of the telescopic rod; the sliding limit plate (23) is engaged with the limit plate placement groove (24); the cross connecting plate (21) is engaged and slides along the limit plate placement groove (24); the connecting plates (20) on both sides are fixedly connected to the cross connecting plate (21); the handle (22) is fixedly arranged on the connecting plates (20) on both sides; the mouth opening plates (19) on both sides are fixedly arranged on the connecting plates (20) on both sides; and the mouth opening plates (19) on both sides are configured as trumpet-shaped structures.

7. The oral medicine auxiliary examination device according to claim 6, characterized in that: A triangular prism-shaped protrusion (25) is arranged in an array on one side of the sliding limit plate (23), a small pull rod (26) is arranged on the other side of the sliding limit plate (23), the cross connecting plate (21) is in contact with the protrusion (25), the small pull rod (26) passes through the side wall of the tongue depressor (3), the cross connecting plate (21) is connected to the limit plate placement groove (24) by a spring, and the small pull rod (26) is connected to the limit plate placement groove (24) by a spring; the cross connecting plate (21) is engaged and rotatably connected to the telescopic rod assembly (7).

8. The oral medicine auxiliary examination device according to claim 7, characterized in that: The cleaning bucket (1) comprises a cleaning cylinder (27), a contact cleaning groove (28), a vertical placement groove (29) and a cleaning roller (30); the cleaning cylinder (27) is placed on a table; the contact cleaning groove (28) is arranged in the cleaning cylinder (27); the vertical placement groove (29) is connected to an upper wall of the contact cleaning groove (28); and the cleaning roller (30) is rotatably arranged on a side wall of the contact cleaning groove (28).

9. The oral medicine auxiliary examination device according to claim 8, characterized in that: The contact cleaning groove (28) is configured as a three-dimensional rectangle, and the side walls of the contact cleaning groove (28) are configured as chamfered corners. The bottom wall of the contact cleaning groove (28) is provided with a small hole penetrating the cleaning cylinder (27). The vertical placement groove (29) is configured as a cylinder, and the connection between the contact cleaning groove (28) and the vertical placement groove (29) is provided with a chamfered corner.

10. The oral medicine auxiliary examination device according to claim 9, characterized in that: The opening plates (19) on both sides of the mouth are made of transparent glass.

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