A dental treatment auxiliary device for young children

Abstract

The present invention discloses an auxiliary device for treating dental diseases of young children, and relates to the technical field of auxiliary devices for treating dental diseases, including a seat and a backrest, a fixing mechanism, a limiting mechanism, and an auxiliary mechanism. The present invention has a reasonable structure, and by setting a fixing mechanism, before treating dental diseases of young patients, the positioning block is pressed by the weight of the patient's head to make multiple splints and a top plate bend and cover the patient's forehead, thereby completing the automatic fixing operation of the patient's head; when the fixing operation of the patient's head needs to be released during the treatment, the reel is driven to rotate in the opposite direction by pushing the reset rod, so that the multiple splints and the top plate are reset, thereby releasing the fixing operation of the patient's head so that the patient can spit out the liquid medicine and saliva in the mouth, and repeating the above operation can complete the re-fixation and release of the patient's head, which significantly reduces the operations that the doctor needs to perform during this process, thereby reducing the time and complexity of the treatment process.

Description

Technical Field

[0001] The present invention relates to the technical field of dental treatment auxiliary devices, and in particular to a dental treatment auxiliary device for young children. Background Art

[0002] The dental chair is used for oral surgery and examination and treatment of oral diseases. Its working principle is: the control switch starts the motor and drives the transmission mechanism to move the corresponding parts of the dental chair. According to the needs of treatment, the control switch button is operated, and the dental chair can complete the actions of rising, falling, prone, supine and resetting. Therefore, the dental chair has become an essential device in oral surgery.

[0003] According to the announcement number "CN114081656A", it is "an auxiliary device for treating dental diseases in young children", which includes a plate body, a movable plate is arranged on one side of the plate body, one end of the movable plate extends into the interior of the plate body, a movable mechanism 1 is arranged between the movable plate and the plate body, a pressure plate is arranged on the top of the movable plate, movable bars are fixedly connected on both sides of the bottom of the pressure plate, the bottom end of the movable bar extends into the interior of the movable plate, a movable mechanism 2 is arranged between the movable bar and the movable plate, a linkage hook is arranged between the movable mechanism 1 and the movable mechanism 2, the movable mechanism 1 includes a threaded sleeve, the threaded sleeve is arranged inside the movable plate, and the threaded sleeve is rotatably connected to the movable plate.

[0004] In the above patent, the pressure plate is driven to move toward the top of the patient's head for positioning by rotating the shaft. When the top of the patient's head is against the top plate, the pressure plate is pressed down on the patient's forehead to fix the patient's head. The above process requires the doctor to manually and continuously drive the shaft to rotate to complete. After completing the treatment operation on the patient, the shaft needs to be driven in reverse to release the fixation of the patient's head. However, the patient needs to continuously spit out a mixture of saliva and liquid medicine during the process of dental treatment. At this time, the patient's head needs to be released and re-fixed. The above fixing method significantly increases the time and complexity of the treatment process. For this reason, we propose an auxiliary device for dental treatment of young children. Summary of the invention

[0005] The purpose of the present invention is to provide an auxiliary device for treating dental diseases of young children, which can effectively solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an auxiliary device for treating dental diseases of young children, comprising a seat and a backrest fixedly connected to one end of the top of the seat by a bolt assembly, a headrest being arranged on the top of the backrest: a fixing mechanism for automatically fixing the patient's head, the fixing mechanism being connected to the headrest; a limiting mechanism for improving the stability when fixing the patient's head, the limiting mechanism being connected to the fixing mechanism; an auxiliary mechanism for improving the comfort when fixing the patient's head, the auxiliary mechanism being connected to the fixing mechanism.

[0007] Preferably, the fixing mechanism includes a clamping assembly and a positioning assembly, wherein the clamping assembly includes fixing plates symmetrically arranged on both sides of the top of the headrest, a plurality of clamping plates are evenly arranged on the tops of the two groups of fixing plates, wherein a top plate is arranged on the top of the clamping plate at the top, the bottoms of the two groups of fixing plates are fixedly connected to the limiting slider, the two groups of limiting sliders are fixedly connected on the side close to each other, the connecting block is L-shaped structure as a whole, a turntable is arranged inside the headrest, arc guide rails are arranged on both sides of the top of the turntable, the arc guide rails are located between the limiting slider and the connecting block, the bottom of the turntable is fixedly connected to a shaft sleeve rotatably connected to the headrest, the outer wall of the shaft sleeve is sleeved with a torsion spring, the interior of the headrest is symmetrically provided with limiting slide grooves extending to the top of the headrest, the internal structure of the limiting slide grooves matches the limiting slide grooves, the limiting slide grooves are slidably connected to the headrest through the limiting slide grooves, a driving groove is arranged inside the headrest, and the turntable is located inside the driving groove.

[0008] Preferably, the clamping assembly also includes mounting blocks symmetrically fixedly connected to the outer walls of the fixed plate and the top plate, the outer walls of the two mounting blocks are sleeved with rubber bands, two mounting blocks and rubber bands are provided on the side where the two groups of clamping plates and the two groups of top plates are close to each other, the two groups of fixed plates are internally rotatably connected with connecting shafts, the bottoms of the two groups of connecting shafts are fixedly connected with transmission gears, the tops of the two groups of connecting shafts are fixedly connected with driving bevel gears, the driving bevel gears are internally rotatably connected with transmission bevel gears that mesh with the driving bevel gears, the transmission bevel gears are fixedly connected to a winding disk at one end of the outer wall away from the driving bevel gear, the winding disk has a pull wire wrapped around the inside thereof extending to the top of the top plate, and the inner wall of the limiting slide groove is provided with transmission teeth that mesh with the transmission gears.

[0009] Preferably, the positioning assembly includes a positioning block arranged between two groups of fixed plates, the bottom of the positioning block is fixedly connected to a transmission rod extending to the bottom of the sleeve, the bottom of the headrest is fixedly connected to a mounting base shell, the interior of the mounting base shell is provided with a telescopic spring located at the bottom of the transmission rod, a limiting groove is provided at the bottom of the sleeve, and the outside of the lower end of the transmission rod is fixedly connected to a limiting column extending to the inside of the limiting groove.

[0010] Preferably, the limiting mechanism includes a splicing plate fixedly connected to the two ends of the outer walls of the two groups of fixed plates and extending to the outer wall of the splicing plates, and the same end of the outer walls of the multiple splints is also provided with a splicing plate, and the two ends of the outer walls of the upper ends of the multiple groups of splints are fixedly connected to a rotating drum rotatably connected to the splicing plate, and a limiting disk is movably provided inside the rotating drum, and the outer wall of the splicing plate is fixedly connected to a mounting cylinder, and the outer wall of the limiting disk is fixedly connected to a rectangular rod extending to the outside of the mounting cylinder, and the outer wall of the rotating cylinder is fixedly connected to a connecting ring located inside the mounting cylinder, and the connecting ring is fixedly connected to the mounting ring at one end of the outer wall close to the limiting disk, and the outer wall of the rectangular rod is fixedly connected to a fixed disk located inside the mounting cylinder, and the outer wall of the rectangular rod is provided with a pressure spring located inside the mounting cylinder, and the two ends of the pressure spring are respectively connected to the fixed The fixed plate and the mounting cylinder are fixedly connected, the outer wall of the rectangular rod is provided with a bearing located outside the mounting cylinder, the rectangular rod is fixedly connected to the inner ring of the bearing, the outer ring of the bearing is fixedly connected to the transmission plate, the outer walls of multiple splints on the same side are provided with connecting strips, the top and bottom of the connecting strips away from the outer wall of the splint are fixedly connected with connecting columns extending to the inside of the transmission plate, the inside of the transmission plate is provided with an annular groove matching the connecting strip and the connecting column, the end of the outer wall close to the limit plate and the mounting ring is fixedly connected to the limiting toothed disc, the two groups of limiting toothed discs are composed of a plurality of blocks distributed in a ring with the limit plate as the center, the outer surfaces of the plurality of blocks are matched with the other group of limiting toothed discs, and a limiting mechanism is also provided on the other side of the other group of multiple splints and the top plate.

[0011] Preferably, the auxiliary mechanism includes a concave block fixedly connected to the side where the two groups of fixed plates are close to each other, a sound insulation cover is provided on the side where the two groups of concave blocks are close to each other, a sound insulation ring is fixedly connected on the side where the two groups of sound insulation covers are close to each other, a plurality of metal springs distributed in a ring are provided on the side where the two groups of fixed plates are close to each other, a fixed top block is fixedly connected on the side where the two groups of metal springs are close to each other, rubber pads are provided on the two groups of top plates and the side where the two groups of top plates are close to each other, the outer surfaces of the plurality of fixed top blocks away from each other are arranged in a wedge-shaped structure, and the plurality of groups of symmetrically arranged splints and symmetrically arranged top plates are also fixedly connected with metal springs on the side close to each other, and the outer parts of the plurality of metal springs and the plurality of fixed top blocks connected to the splints and the top plates are all sleeved with a docking shell, and the docking shell is fixedly connected to the rubber pad.

[0012] Preferably, a mounting groove matching the outer diameter of the torsion spring is provided inside the lower end of the headrest, the torsion spring is located inside the mounting groove, and both ends of the torsion spring are respectively against the shaft sleeve and the torsion spring.

[0013] Preferably, a positioning groove which is interconnected with the driving groove is provided on the top of the headrest, the internal structure of the positioning groove matches the external structure of the positioning block, the positioning block is movably arranged inside and outside the headrest through the positioning groove, and a positioning groove which matches the occipital bone of the head is provided on the top of the positioning block.

[0014] Preferably, a connecting plate is fixedly connected to one end of the top of the headrest, and the other end of the connecting plate is fixedly connected to the backrest. The headrest and the backrest are fixedly connected via the connecting plate, and the connecting plate has an overall arched structure.

[0015] Preferably, the bottom of the arc guide rail is fixedly connected to a reset rod extending to the bottom of the headrest, and a reset arc groove connected to the driving groove is arranged inside the lower end of the headrest, the internal spacing of the reset arc groove matches the outer diameter of the reset rod, and the reset rod is movably arranged inside and outside the headrest through the reset arc groove.

[0016] The present invention also discloses an auxiliary method for treating dental diseases of young children, which uses the auxiliary device for treating dental diseases of young children and comprises the following steps:

[0017] S1. First, before performing dental treatment on young patients, let the young patients sit on the chair and backrest, and press the positioning block to drive multiple splints and top plates to bend and cover the patient's forehead, so as to complete the fixation operation of the patient's head;

[0018] S2, pushing the reset rod to drive the turntable to rotate in the opposite direction to drive the multiple splints and the top plate to operate in the opposite direction to release the fixation operation on the patient's head;

[0019] S3, limiting the rotation of the plurality of clamping plates and the top plate by operating the limiting mechanism;

[0020] S4. At the same time, in cooperation with auxiliary mechanisms, the rubber pad and the sound insulation ring are set to achieve soft contact when fixing the patient's head.

[0021] In summary, the technical effects and advantages of the present invention are as follows:

[0022] The present invention has a reasonable structure and provides a fixing mechanism. Before performing dental treatment on young patients, the positioning block is pressed by the weight of the patient's head to drive the winding disk to rotate and drive the pull wire to unwind. As the pull wire is gradually released, the multiple splints and the top plate are pulled to bend and cover the patient's forehead through the resetting effect of the rubber band, thereby completing the automatic fixing operation of the patient's head; and during the treatment process, when the patient needs to spit out the liquid medicine and saliva in the oral cavity and needs to release the fixing operation on the patient's head, the resetting rod is pushed to drive the winding disk to rotate in the opposite direction to rewind the pull wire, so that the multiple splints and the top plate are reset, thereby releasing the fixing operation on the patient's head so that the patient can spit out the liquid medicine and saliva in the mouth, and repeating the above operation can complete the re-fixation and release of the patient's head, which significantly reduces the operations that the doctor needs to perform in this process, thereby reducing the time and complexity of the treatment process;

[0023] In the present invention, by setting a limiting mechanism, when the rubber band pulls the multiple clamping plates and the top plate to bend to fix the patient's head, the rotation of the clamping plates and the top plate respectively drives the multiple rotating drums to rotate clockwise, so that the mounting ring rotates clockwise. At this time, the clockwise rotation of the limiting toothed disc outside the mounting ring will push the limiting disc to move laterally inside the rotating drum until the clamping plates and the top plate complete the fixation of the patient's head. At this time, the reset effect of the pressure spring pulls the rectangular rod through the fixing plate to move in the opposite direction, so that the limiting toothed disc on the outer wall of the limiting disc and the limiting toothed disc on the outer wall of the mounting ring are engaged with each other. At this time, the rotating drum cannot rotate in the opposite direction, thereby completing the limiting operation of the multiple mounting bottom shells and the top plate, thereby improving the stability when fixing the patient's head.

[0024] In the present invention, by setting an auxiliary mechanism, when the two groups of fixing plates are close to each other and fit together, they respectively drive the two groups of sound insulation circles to approach each other and fit with the two sides of the patient's head, so that the ears on both sides of the patient's head are covered in the inside of the sound insulation circle and the sound insulation cover respectively. The air permeability and moisture absorption of the velvet material on the surface of the sound insulation circle help to reduce the discomfort when the sound insulation circle contacts the patient, and the setting of the sponge material helps to slow down the propagation of noise, reduce the pressure on the ears and the head, and increase the comfort while providing support for the sound insulation circle. When the splint and the top plate are bent, they respectively drive the rubber pads connected to themselves to contact the patient's forehead. The rubber material of the rubber pad can avoid damage to the patient's forehead when the patient's head is fixed. The mutual cooperation of the sound insulation circle and the sound insulation cover can significantly reduce the noise received from the treatment instrument when the patient undergoes dental treatment, thereby improving the comfort of the patient when receiving dental treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the stereoscopic structure of a first-person perspective auxiliary device for treating dental diseases in young children;

[0027] Figure 2 is a schematic diagram of the headrest structure;

[0028] Figure 3 It is a vertical cross-sectional view of the headrest and the fixing plate;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0031] Figure 6 This is a cross-sectional exploded view of the headrest;

[0032] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0033] Figure 8 This is the exploded view of the turntable and the shaft sleeve;

[0034] Fig. 9 Exploded view of the rubber pad and auxiliary components;

[0035] Fig.10 for Fig. 9 Enlarged view of point D in the middle;

[0036] Fig.11 is a partial cross-sectional schematic diagram of a headrest;

[0037] Fig.12 for Fig.11 Enlarged view of point E in the middle;

[0038] Fig.13 It is a schematic diagram of the limit mechanism structure;

[0039] Fig.14 for Fig.13 Enlarged view of point F in the middle;

[0040] Fig.15 It is a cross-sectional exploded view of the limiting mechanism;

[0041] Fig.16 This is a schematic diagram of the installation block and rubber band structure;

[0042] Fig.17 It is a schematic diagram of the structure of the engagement state of two sets of limit gear discs.

[0043] In the figure: 1, seat; 2, backrest; 3, headrest; 4, fixing plate; 5, connecting plate; 6, positioning block; 7, sound insulation ring; 8, turntable; 9, arc guide rail; 10, concave block; 11, sound insulation cover; 12, limit slider; 13, connecting block; 14, transmission gear; 15, reset rod; 16, limit slide groove; 17, torsion spring; 18, telescopic spring; 19, bushing; 20, installation bottom shell; 21, limit column; 22, limit groove; 23, connecting shaft; 24, splint; 25, rubber pad; 26, transmission bevel gear; 27, metal spring; 28, fixed top Block; 29, rubber band; 30, reset arc groove; 31, drive groove; 32, installation groove; 33, positioning slide groove; 34, transmission rod; 35, transmission gear; 36, pull wire; 37, splicing plate; 38, installation cylinder; 39, connecting strip; 40, transmission disk; 41, bearing; 42, rectangular rod; 43, pressure spring; 44, fixed disk; 45, connecting ring; 46, rotating drum; 47, limit disk; 48, installation ring; 49, docking shell; 50, top plate; 51, limit tooth disk; 52, driving bevel gear; 53, winding disk; 54, installation block; 55, connecting column. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] refer to Figure 1-17The auxiliary device for treating dental diseases of young children shown in the figure comprises a seat 1 and a backrest 2 fixedly connected to one end of the top of the seat 1 by a bolt assembly, a headrest 3 being arranged on the top of the backrest 2; a fixing mechanism for automatically fixing the patient's head, the fixing mechanism being connected to the headrest 3; a limiting mechanism for improving the stability of the patient's head when being fixed, the limiting mechanism being connected to the fixing mechanism; an auxiliary mechanism for improving the comfort of the patient's head when being fixed, the auxiliary mechanism being connected to the fixing mechanism; the fixing mechanism comprises a clamping assembly and a positioning assembly, wherein the clamping assembly comprises fixing plates 4 symmetrically arranged on both sides of the top of the headrest 3, a plurality of splints 24 being evenly spaced on the tops of the two groups of fixing plates 4, wherein a top plate 50 is arranged on the top of the splint 24 at the top, the bottoms of the two groups of fixing plates 4 are fixedly connected to the limiting slider 12, the sides of the two groups of limiting sliders 12 close to each other are fixedly connected to the connecting block 13, and the connecting block 13 is an L-shaped structure as a whole. , a turntable 8 is arranged inside the headrest 3, arc-shaped guide rails 9 are arranged on both sides of the top of the turntable 8, and the arc-shaped guide rails 9 are located between the limit slider 12 and the connecting block 13, and a shaft sleeve 19 rotatably connected to the headrest 3 is fixedly connected to the bottom of the turntable 8, and a torsion spring 17 is sleeved on the outer wall of the shaft sleeve 19, and a limit slide groove 16 extending to the top of the headrest 3 is symmetrically arranged inside the headrest 3, and the internal structure of the limit slide groove 16 matches the limit slider 12, and the limit slider 12 is slidably connected to the headrest 3 through the limit slide groove 16, and a driving groove 31 is arranged inside the headrest 3, and the turntable 8 is located inside the driving groove 31, and a reset rod 15 extending to the bottom of the headrest 3 is fixedly connected to the bottom of the arc-shaped guide rail 9, and a reset arc groove 30 connected to the driving groove 31 is arranged inside the lower end of the headrest 3, and the internal spacing of the reset arc groove 30 matches the outer diameter of the reset rod 15, and the reset rod 15 is movably arranged inside and outside the headrest 3 through the reset arc groove 30;

[0046] The clamping assembly also includes mounting blocks 54 symmetrically fixedly connected to the outer walls of the fixed plate 4 and the top plate 50, the outer walls of the two mounting blocks 54 are sleeved with rubber bands 29, two mounting blocks 54 and rubber bands 29 are arranged on the side close to each other of the two groups of clamping plates 24 and the two groups of top plates 50, the interiors of the two groups of fixed plates 4 are rotatably connected to the connecting shafts 23, the bottoms of the two groups of connecting shafts 23 are fixedly connected to the transmission gears 14, the tops of the two groups of connecting shafts 23 are fixedly connected to the driving bevel gears 52, and the interiors of the driving bevel gears 52 are rotatably connected to the driving bevel gears The drive bevel gear 26 meshing with each other with the drive bevel gear 52, one end of the outer wall of the drive bevel gear 26 away from the drive bevel gear 52 is fixedly connected with a winding disk 53, the interior of the winding disk 53 is wound with a pull wire 36 extending to the top of the top plate 50, the inner wall of the limiting slide groove 16 is provided with a transmission clamping tooth 35 meshing with the drive gear 14, the lower end of the headrest 3 is provided with a mounting groove 32 matching the outer diameter of the torsion spring 17, the torsion spring 17 is located inside the mounting groove 32, and the two ends of the torsion spring 17 are respectively against the shaft sleeve 19 and the torsion spring 17;

[0047] The positioning assembly includes a positioning block 6 arranged between two groups of fixed plates 4, the bottom of the positioning block 6 is fixedly connected with a transmission rod 34 extending to the bottom of the shaft sleeve 19, the bottom of the headrest 3 is fixedly connected with a mounting bottom shell 20, the interior of the mounting bottom shell 20 is provided with a telescopic spring 18 located at the bottom of the transmission rod 34, a limiting groove 22 is arranged at the bottom of the shaft sleeve 19, the outer portion of the lower end of the transmission rod 34 is fixedly connected with a limiting column 21 extending to the inside of the limiting groove 22, the top of the headrest 3 is provided with a positioning slide groove 33 which is mutually interpenetrating with the driving groove 31, the internal structure of the positioning slide groove 33 matches the external structure of the positioning block 6, the positioning block 6 is movably arranged inside and outside the headrest 3 through the positioning slide groove 33, the top of the positioning block 6 is provided with a positioning groove matching the occipital bone of the head, one end of the top of the headrest 3 is fixedly connected with a connecting plate 5, the other end of the connecting plate 5 is fixedly connected to the backrest 2, the headrest 3 and the backrest 2 are fixedly connected by the connecting plate 5, and the connecting plate 5 is an arched structure as a whole.

[0048] Furthermore, the interiors of the plurality of splints 24 and the top plate 50 are all provided with wire holes matching the pull wires 36, the tops of the pull wires 36 are fixedly connected with limit blocks located at the tops of the top plates 50, the outer diameter of the limit blocks being larger than the outer diameter of the wire holes, and before performing dental treatment on young patients, the young patients are first allowed to sit on the seat 1 and the backrest 2, so that the back of the patient's neck rests on the arched structure on the surface of the connecting plate 5, so that the occipital bone behind the patient's head fits into the positioning groove inside the positioning block 6, and the patient's head is placed on the backrest of the seat 1 and the backrest 2. When the position of the patient's sacral bone is in contact with the positioning groove, the patient's forehead and eyes are located below the two sets of fixing plates 4 and the two sets of sound insulation rings 7 correspond to the ears on both sides of the patient's head. Then, after the patient's head is placed on the top of the positioning block 6, the weight of the patient's head will press the positioning block 6 to move and drive the transmission rod 34 to move, so that the transmission rod 34 drives the limiting column 21 to separate from the limiting groove 22, thereby releasing the rotation limit of the shaft sleeve 19, and the shaft sleeve 19 after the limit is released moves under the reset action of the torsion spring 17. The rotating disk 8 rotates and drives the rotating disk 8 to rotate. The rotating disk 8 drives the two sets of arc guide rails 9 to rotate with the shaft sleeve 19 as the center. The rotation of the two sets of arc guide rails 9 drives the two sets of connecting blocks 13 to approach each other. The movement between the two sets of connecting blocks 13 drives the two sets of limiting sliders 12 to approach each other. The movement of the limiting slider 12 drives the two sets of fixing plates 4 to approach each other. In this process, the movement of the limiting slider 12 drives the transmission gear 14 to rotate. The transmission gear 14 rotates to drive the connecting shaft 23 to rotate. The connecting shaft 23 rotates to drive the driving bevel gear 52 to rotate. The driving bevel gear 52 rotates to drive the transmission bevel gear 26 to rotate. The transmission bevel gear 26 rotates to drive the winding disk 53 to rotate. The winding disk 53 rotates to drive the pull wire 36 to unwind. As the pull wire 36 is gradually released, the resetting effect of the rubber band 29 shrinks at this time. Through the setting of the mounting block 54, the multiple splints 24 and the top plate 50 are pulled to bend and cover the patient's forehead, thereby completing the fixation operation of the patient's head.

[0049] Furthermore, during the treatment process, when the patient needs to spit out the liquid medicine and saliva in the mouth and needs to release the fixation operation on the patient's head, the reset rod 15 is pushed to move inside the reset arc groove 30, driving the turntable 8 and the transmission rod 34 to rotate in the opposite direction, thereby driving the two groups of fixing plates 4 to move away from each other and driving the winding disk 53 to rotate in the opposite direction to wind up the pull wire 36. The force of the winding of the pull wire 36 pulls the multiple splints 24 and the top plate 50 to reset, thereby releasing the fixation operation on the patient's head. As the patient is separated from the auxiliary treatment device, The positioning block 6 loses gravity, and the transmission rod 34 reverses, driving the limiting column 21 to reverse. When the limiting column 21 and the limiting groove 22 are aligned with each other, the transmission rod 34 moves upward under the resetting action of the telescopic spring 18, driving the limiting column 21 to enter the interior of the limiting groove 22, completing the limiting operation of the transmission rod 34. The positioning block 6 also completes the resetting operation under the push of the transmission rod 34. Repeating the above operation can complete the re-fixation and release of the patient's head, significantly reducing the operations that the doctor needs to perform during this process, thereby reducing the time and complexity of the treatment process.

[0050] The limiting mechanism includes a splicing plate 37 fixedly connected to the two ends of the outer walls of the two groups of fixed plates 4 and extending to the outer wall of the clamping plate 24, and the same end of the outer walls of the multiple clamping plates 24 is also provided with a splicing plate 37, and the two ends of the outer walls of the upper ends of the multiple groups of clamping plates 24 are fixedly connected to a rotating cylinder 46 rotatably connected to the splicing plate 37, and a limiting disk 47 is movably arranged inside the rotating cylinder 46, and the outer wall of the splicing plate 37 is fixedly connected to the mounting cylinder 38, and the outer wall of the limiting disk 47 is fixedly connected to a rectangular rod 42 extending to the outside of the mounting cylinder 38, and the outer wall of the rotating cylinder 46 is fixedly connected to a connecting ring 45 located inside the mounting cylinder 38, and one end of the outer wall of the connecting ring 45 close to the limiting disk 47 is fixedly connected to the mounting ring 48, and the outer wall of the rectangular rod 42 is fixedly connected to a fixed disk 44 located inside the mounting cylinder 38, and the outer wall of the rectangular rod 42 is provided with a pressure spring 43 located inside the mounting cylinder 38, and the two ends of the pressure spring 43 are respectively connected to the fixed The fixed plate 44 is fixedly connected to the mounting cylinder 38, and the outer wall of the rectangular rod 42 is provided with a bearing 41 located outside the mounting cylinder 38. The rectangular rod 42 is fixedly connected to the inner ring of the bearing 41, and the outer ring of the bearing 41 is fixedly connected to the transmission plate 40. The outer walls of multiple splints 24 on the same side are provided with connecting strips 39. The top and bottom of the connecting strips 39 away from the outer wall of the splint 24 are fixedly connected to connecting columns 55 extending to the inside of the transmission plate 40. The inside of the transmission plate 40 is provided with an annular groove matching the connecting strip 39 and the connecting column 55. The limiting plate 47 and the mounting ring 48 are fixedly connected to the limiting toothed plate 51 at one end of the outer wall close to each other. The two groups of limiting toothed plates 51 are composed of multiple card blocks distributed in a ring with the limiting plate 47 as the center, and the outer surfaces of the multiple card blocks are matched with another group of limiting toothed plates 51. A limiting mechanism is also provided on the other side of the other group of multiple splints 24 and the top plate 50.

[0051] Furthermore, when the rubber band 29 pulls the multiple clamping plates 24 and the top plate 50 to bend, the clamping plates 24 and the top plate 50 rotate clockwise with the rotating cylinder 46 provided on their outer walls as the center of the circle. The rotation of the clamping plates 24 and the top plate 50 respectively drives the multiple rotating cylinders 46 to rotate. The rotation of the rotating cylinder 46 drives the connecting ring 45 to rotate clockwise. The clockwise rotation of the connecting ring 45 drives the mounting ring 48 to rotate clockwise. At this time, the limiting toothed disc 51 outside the mounting ring 48 rotates clockwise to push the limiting disc 47 inside the rotating cylinder 46. The clamping plate 24 and the top plate 50 are moved laterally until the clamping plate 24 and the top plate 50 complete the fixation of the patient's head. At this time, the resetting effect of the pressure spring 43 pulls the rectangular rod 42 to move in the opposite direction through the fixing plate 44. The reverse movement of the rectangular rod 42 drives the limiting plate 47 to move, so that the limiting toothed plate 51 on the outer wall of the limiting plate 47 and the limiting toothed plate 51 on the outer wall of the mounting ring 48 are engaged with each other. At this time, the rotating drum 46 cannot rotate in the opposite direction, thereby completing the limiting operation of the multiple mounting bottom shells 20 and the top plate 50, thereby improving the stability of the patient's head when being fixed.

[0052] Furthermore, when the fixation needs to be released, the rectangular rod 42 is pushed laterally by the transmission disk 40 to drive the bearing 41 and the limiting toothed disk 51 connected to the bearing 41 to separate from the mounting ring 48, so as to release the limiting operation with the rotating cylinder 46. Through the setting of the connecting strip 39, it is possible to push one transmission disk 40 to drive multiple transmission disks 40 at the same end to move synchronously, thereby releasing the limiting operation between multiple splints 24, the top plate 50 and the rotating cylinder 46. The doctor can simultaneously drive the two sets of limiting mechanisms to release the limit by pinching the transmission disks 40 at both ends that are away from each other, and cooperate with pushing the reset rod 15 to complete the release of the fixation of the patient's head.

[0053] The auxiliary mechanism includes a concave block 10 fixedly connected to the side of the two groups of fixed plates 4 close to each other, a sound insulation cover 11 is provided on the side of the two groups of concave blocks 10 close to each other, a sound insulation ring 7 is fixedly connected to the side of the two groups of sound insulation covers 11 close to each other, a plurality of metal spring sheets 27 distributed in an annular shape are provided on the side of the two groups of fixed plates 4 close to each other, a fixed top block 28 is fixedly connected to the side of the two groups of metal spring sheets 27 close to each other, a rubber pad 25 is provided on the two groups of top plates 50 and the side of the two groups of top plates 50 close to each other, and the outer surfaces of the plurality of fixed top blocks 28 away from each other are arranged in a wedge-shaped structure, and the plurality of symmetrically arranged clamping plates 24 and symmetrically arranged top plates 50 are also fixedly connected to the side close to each other with metal spring sheets 27, and the outer parts of the plurality of metal spring sheets 27 and the plurality of fixed top blocks 28 connected to the clamping plates 24 and the top plates 50 are sleeved with a docking shell 49, and the docking shell 49 is fixedly connected to the rubber pad 25.

[0054] Furthermore, when the two groups of fixing plates 4 are close to each other and fit together, they respectively drive the two groups of sound insulation circles 7 to approach each other and fit with the two sides of the patient's head, so that the ears on both sides of the patient's head are covered in the sound insulation circles 7 and the sound insulation cover 11 respectively. The air permeability and moisture absorption of the flannel material on the surface of the sound insulation circle 7 help to reduce the discomfort when the sound insulation circle 7 contacts the patient, and the setting of the sponge material helps to slow down the spread of noise, reduce the pressure on the ears and head, and improve the comfort while providing support for the sound insulation circle 7. When the splint 24 and the top plate 50 are bent, the rubber pad 25 connected to themselves is respectively driven to contact the patient's forehead. The rubber material setting of the rubber pad 25 can avoid damage to the patient's forehead when the patient's head is fixed. The mutual cooperation of the sound insulation circle 7 and the sound insulation cover 11 can significantly reduce the noise received from the treatment instrument when the patient is undergoing dental treatment, thereby improving the comfort of the patient when receiving dental treatment.

[0055] Furthermore, by moving the rubber pad 25, the docking shell 49 can be driven to move to squeeze the multiple fixed top blocks 28. The wedge-shaped structure is set to cause the metal spring 27 to deform and bend, so that the multiple fixed top blocks 28 gather toward the center of the rubber pad 25 and separate from the metal spring 27, thereby completing the disassembly of the sound insulation ring 7, the sound insulation cover 11 and the rubber pad 25 for easy replacement.

[0056] In combination with the above-mentioned mixing device for processing whole egg liquid, a mixing method for processing whole egg liquid is provided, which specifically comprises the following steps:

[0057] S1. First, before performing dental treatment on a young patient, let the young patient sit on the seat 1 and the backrest 2, and press the positioning block 6 to drive the multiple clamps 24 and the top plate 50 to bend and cover the patient's forehead, so as to complete the fixation operation of the patient's head;

[0058] S2, pushing the reset rod 15 to drive the turntable 8 to rotate in the opposite direction to drive the multiple clamping plates 24 and the top plate 50 to operate in the opposite direction to release the fixation operation on the patient's head;

[0059] S3, limiting the rotation of the plurality of clamping plates 24 and the top plate 50 by operating the limiting mechanism;

[0060] S4. At the same time, in cooperation with the auxiliary mechanism, the rubber pad 25 and the sound insulation ring 7 are arranged to achieve soft contact when fixing the patient's head.

[0061] Working principle: before performing dental treatment on young patients, let the young patients sit on the seat 1 and the backrest 2, so that the back of the patient's neck rests on the arched structure on the surface of the connecting plate 5, so that the occipital bone behind the patient's head fits with the positioning groove inside the positioning block 6. When the occipital bone behind the patient's head fits with the positioning groove, the patient's forehead and eyes are located below the two sets of fixing plates 4 and the two sets of sound insulation rings 7 correspond to the ears on both sides of the patient's head. Then, after the patient's head is placed on top of the positioning block 6, the weight of the patient's head will press the positioning block 6 to move and drive the transmission rod 34 to move, so that the transmission rod 34 drives the limiting column 21 to separate from the limiting groove 22, so as to release the rotation limit of the shaft sleeve 19, and the shaft sleeve 19 after the limit is released is in the torsion spring The spring 17 rotates under the reset action, and drives the turntable 8 to rotate. The rotation of the turntable 8 drives the two sets of arc guide rails 9 to rotate with the shaft sleeve 19 as the center. The rotation of the two sets of arc guide rails 9 drives the two sets of connecting blocks 13 to approach each other. The movement between the two sets of connecting blocks 13 drives the two sets of limit sliders 12 to approach each other. The movement of the limit slider 12 drives the two sets of fixed plates 4 to approach each other. In this process, the movement of the limit slider 12 drives the transmission gear 14 to rotate. The rotation of the transmission gear 14 drives the connecting shaft 23 to rotate. The rotation of the connecting shaft 23 drives the driving bevel gear 52 to rotate. The driving bevel gear 52 drives the transmission bevel gear 26 to rotate. The rotation of the transmission bevel gear 26 drives the winding disk 53 to rotate. The winding disk The rotation of 53 drives the pull wire 36 to unwind. As the pull wire 36 is gradually released, the resetting effect of the rubber band 29 contracts, and the multiple splints 24 and the top plate 50 are bent and covered on the patient's forehead through the setting of the mounting block 54, thereby completing the fixation operation on the patient's head. During the treatment process, when the patient needs to spit out the liquid medicine and saliva in the mouth and needs to release the fixation operation on the patient's head, the resetting rod 15 is pushed to move inside the resetting arc groove 30, driving the turntable 8 and the transmission rod 34 to rotate in the opposite direction, thereby driving the two groups of fixing plates 4 to move away from each other and driving the winding disk 53 to rotate in the opposite direction to rewind the pull wire 36, and the multiple splints 24 and the top plate 50 are pulled by the force when the pull wire 36 is rewound. The positioning block 6 is pushed by the transmission rod 34 to complete the resetting operation, and the positioning block 6 is pushed back to the position where the patient's head is fixed. The positioning block 6 is pushed back to the position where the patient's head is fixed, and ...The splint 24 and the top plate 50 both rotate clockwise with the rotating cylinder 46 provided on their outer walls as the center of the circle. The rotation of the splint 24 and the top plate 50 respectively drives the multiple rotating cylinders 46 to rotate. The rotation of the rotating cylinder 46 drives the connecting ring 45 to rotate clockwise. The clockwise rotation of the connecting ring 45 drives the mounting ring 48 to rotate clockwise. At this time, the clockwise rotation of the limiting toothed disk 51 outside the mounting ring 48 will push the limiting disk 47 to move laterally inside the rotating cylinder 46 until the splint 24 and the top plate 50 complete the fixation of the patient's head. At this time, the reset effect of the pressure spring 43 pulls the rectangular rod 42 to move in the opposite direction through the fixing disk 44. The reverse movement of the rectangular rod 42 drives the limiting disk 47 to move, so that the limiting toothed disk 51 on the outer wall of the limiting disk 47 is The limiting toothed disc 51 and the outer wall of the mounting ring 48 are engaged with each other. At this time, the rotating cylinder 46 cannot rotate in the opposite direction, thereby completing the limiting operation of multiple mounting bottom shells 20 and top plates 50, thereby improving the stability of the patient's head fixation. When the fixation needs to be released, the rectangular rod 42 is pushed laterally by the transmission disc 40 to drive the bearing 41 and the limiting toothed disc 51 connected to the bearing 41 to separate from the mounting ring 48, so as to release the limiting operation with the rotating cylinder 46. The setting of the connecting strip 39 can realize pushing one transmission disc 40 to drive multiple transmission discs 40 at the same end to move synchronously, thereby releasing the limiting operation between multiple splints 24, top plates 50 and rotating cylinder 46. The doctor pinches the two ends away from each other at the same time. The transmission disk 40 can synchronously drive the two sets of limit mechanisms to release the limit, and cooperate with the reset rod 15 to complete the unfixing operation of the patient's head. When the two sets of fixing plates 4 are close to each other and fit together, they respectively drive the two sets of sound insulation rings 7 to approach each other and fit with the two sides of the patient's head to cover the ears on both sides of the patient's head in the sound insulation ring 7 and the sound insulation cover 11 respectively. The air permeability and moisture absorption of the flannel material on the surface of the sound insulation ring 7 help to reduce the discomfort when the sound insulation ring 7 contacts the patient, and the setting of the sponge material helps to slow down the spread of noise, reduce the pressure on the ears and head, and increase comfort while providing support for the sound insulation ring 7. When the splint 24 and the top plate 50 are bent, they respectively drive the splint 24 and the top plate 50 connected to themselves to increase the comfort. The connected rubber pad 25 contacts the patient's forehead. The rubber material of the rubber pad 25 can avoid damage to the patient's forehead when the patient's head is fixed. The mutual cooperation of the sound insulation ring 7 and the sound insulation cover 11 can significantly reduce the noise received by the patient from the treatment equipment during dental treatment, thereby improving the comfort of the patient during dental treatment. The moving rubber pad 25 can drive the docking shell 49 to move and squeeze the multiple fixed top blocks 28. The wedge-shaped structure is set to deform and bend the metal spring sheet 27, so that the multiple fixed top blocks 28 gather toward the center of the rubber pad 25 and separate from the metal spring sheet 27, thereby completing the disassembly of the sound insulation ring 7, the sound insulation cover 11 and the rubber pad 25 for easy replacement.

[0062] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary device for treating dental diseases of young children, comprising a seat (1) and a backrest (2) fixedly connected to one end of the top of the seat (1) by a bolt assembly, wherein a headrest (3) is arranged on the top of the backrest (2), and characterized in that: A fixing mechanism, used for automatically fixing the patient's head, the fixing mechanism being connected to the headrest (3); A limiting mechanism, used to improve the stability of the patient's head when being fixed, the limiting mechanism being connected to the fixing mechanism; The auxiliary mechanism is used to improve the comfort when the patient's head is fixed, and the auxiliary mechanism is connected to the fixing mechanism.

2. The auxiliary device for treating dental diseases of young children according to claim 1, characterized in that: The fixing mechanism comprises a clamping assembly and a positioning assembly, wherein the clamping assembly comprises fixing plates (4) symmetrically arranged on both sides of the top of the headrest (3), a plurality of clamping plates (24) are evenly arranged on the top of the two groups of fixing plates (4), wherein a top plate (50) is arranged on the top of the clamping plate (24) at the top, the bottom of the two groups of fixing plates (4) are fixedly connected to the limiting slider (12), the two groups of limiting sliders (12) are fixedly connected to the side close to each other, and the connecting block (13) is L-shaped in structure as a whole, a rotating disk (8) is arranged inside the headrest (3), and arc-shaped guide rails (9) are arranged on both sides of the top of the rotating disk (8), and the arc-shaped guide rails (9) are arranged on both sides of the top of the rotating disk (8). The rail (9) is located between the limiting slider (12) and the connecting block (13); the bottom of the rotating disk (8) is fixedly connected with a shaft sleeve (19) rotatably connected to the headrest (3); the outer wall of the shaft sleeve (19) is sleeved with a torsion spring (17); the interior of the headrest (3) is symmetrically provided with limiting slide grooves (16) extending to the top of the headrest (3); the internal structure of the limiting slide grooves (16) matches the limiting slider (12); the limiting slider (12) is slidably connected to the headrest (3) through the limiting slide grooves (16); the interior of the headrest (3) is provided with a driving groove (31); and the rotating disk (8) is located inside the driving groove (31).

3. The auxiliary device for treating dental diseases of young children according to claim 2, characterized in that: The clamping assembly further comprises mounting blocks (54) symmetrically fixedly connected to the outer walls of the fixing plate (4) and the top plate (50), the outer walls of the two mounting blocks (54) being sleeved with rubber bands (29), two mounting blocks (54) and rubber bands (29) being arranged on the sides close to each other of the two groups of clamping plates (24) and the two groups of top plates (50), the interiors of the two groups of fixing plates (4) being rotatably connected with connecting shafts (23), the bottoms of the two groups of connecting shafts (23) being fixedly connected with transmission gears (14), and the two groups of connecting shafts (23) being rotatably connected to each other. The top of each of the top plates (50) is fixedly connected with a driving bevel gear (52), the interior of the driving bevel gear (52) is rotatably connected with a transmission bevel gear (26) meshing with the driving bevel gear (52), one end of the transmission bevel gear (26) away from the outer wall of the driving bevel gear (52) is fixedly connected with a winding disk (53), the interior of the winding disk (53) is wound with a pull wire (36) extending to the top of the top plate (50), and the inner wall of the limiting slide groove (16) is provided with a transmission tooth (35) meshing with the transmission gear (14).

4. The auxiliary device for treating dental diseases of young children according to claim 3, characterized in that: The positioning assembly comprises a positioning block (6) arranged between two groups of the fixing plates (4); the bottom of the positioning block (6) is fixedly connected to a transmission rod (34) extending to the bottom of the shaft sleeve (19); the bottom of the headrest (3) is fixedly connected to a mounting bottom shell (20); a telescopic spring (18) located at the bottom of the transmission rod (34) is arranged inside the mounting bottom shell (20); a limiting groove (22) is arranged at the bottom of the shaft sleeve (19); and a limiting column (21) extending to the inside of the limiting groove (22) is fixedly connected to the outside of the lower end of the transmission rod (34).

5. The auxiliary device for treating dental diseases of young children according to claim 4, characterized in that: The limiting mechanism comprises a splicing plate (37) fixedly connected to both ends of the outer walls of the two groups of the fixing plates (4) and extending to the outer wall of the clamping plate (24); the same end of the outer walls of the plurality of clamping plates (24) is also provided with the splicing plate (37); both ends of the outer walls of the upper ends of the plurality of groups of clamping plates (24) are fixedly connected with a rotating cylinder (46) rotatably connected to the splicing plate (37); a limiting disk (47) is movably arranged inside the rotating cylinder (46); the outer wall of the splicing plate (37) is fixedly connected with a mounting cylinder (38); the outer wall of the limiting disk (47) is fixedly connected with a rectangular rod (42) extending to the outside of the mounting cylinder (38); The outer wall of the cylinder (46) is fixedly connected to a connecting ring (45) located inside the installation cylinder (38); one end of the outer wall of the connecting ring (45) close to the limiting plate (47) is fixedly connected to the installation ring (48); the outer wall of the rectangular rod (42) is fixedly connected to a fixing plate (44) located inside the installation cylinder (38); the outer wall of the rectangular rod (42) is provided with a pressure spring (43) located inside the installation cylinder (38); the two ends of the pressure spring (43) are respectively fixedly connected to the fixing plate (44) and the installation cylinder (38); the outer wall of the rectangular rod (42) is provided with a fixing plate (44) located outside the installation cylinder (38); The rectangular rod (42) is fixedly connected to the inner ring of the bearing (41); the outer ring of the bearing (41) is fixedly connected to the transmission plate (40); the outer walls of the plurality of clamps (24) on the same side are all provided with connecting strips (39); the top and bottom of the connecting strip (39) at one end away from the outer wall of the clamp (24) are fixedly connected to connecting columns (55) extending to the inside of the transmission plate (40); the inside of the transmission plate (40) is provided with an annular groove matching the connecting strip (39) and the connecting column (55); the outer wall ends of the limit plate (47) and the mounting ring (48) close to each other are fixedly connected. A limited toothed disc (51) is fixedly connected, and the two groups of the limited toothed discs (51) are composed of a plurality of blocks distributed in a ring shape with the limited disc (47) as the center, and the outer surfaces of the plurality of blocks are matched with the other group of the limited toothed discs (51). A limited mechanism is also arranged on the other side of the other group of the plurality of clamping plates (24) and the top plate (50). A mounting groove (32) matching the outer diameter of the torsion spring (17) is arranged inside the lower end of the headrest (3), and the torsion spring (17) is located inside the mounting groove (32). The two ends of the torsion spring (17) are respectively against the shaft sleeve (19) and the torsion spring (17).

6. The auxiliary device for treating dental diseases of young children according to claim 2, characterized in that: The auxiliary mechanism comprises a concave block (10) fixedly connected to a side where the two groups of fixed plates (4) are close to each other, a sound insulation cover (11) is provided on the side where the two groups of concave blocks (10) are close to each other, a sound insulation ring (7) is fixedly connected to the side where the two groups of sound insulation covers (11) are close to each other, a plurality of metal spring sheets (27) distributed in an annular shape are provided on the side where the two groups of fixed plates (4) are close to each other, a fixed top block (28) is fixedly connected to the side where the two groups of top plates (50) are close to each other, and a sound insulation ring (7) is fixedly connected to the side where the two groups of sound insulation covers (11) are close to each other. The sides of the plurality of fixed top blocks (28) that are close to each other are provided with rubber pads (25), the outer surfaces of the plurality of fixed top blocks (28) that are away from each other are provided with wedge-shaped structures, the sides of the plurality of symmetrically arranged clamping plates (24) and symmetrically arranged top plates (50) that are close to each other are also fixedly connected with the metal spring sheets (27), the outer parts of the plurality of metal spring sheets (27) and the plurality of fixed top blocks (28) that are connected to the clamping plates (24) and the top plates (50) are all sleeved with docking shells (49), and the docking shells (49) are fixedly connected with the rubber pads (25).

7. The auxiliary device for treating dental diseases of young children according to claim 5, characterized in that: The top of the headrest (3) is provided with a positioning slot (33) which is interpenetrating with the driving slot (31); the internal structure of the positioning slot (33) matches the external structure of the positioning block (6); the positioning block (6) is movably arranged inside and outside the headrest (3) through the positioning slot (33); and the top of the positioning block (6) is provided with a positioning slot which matches the occipital bone of the head.

8. The auxiliary device for treating dental diseases of young children according to claim 4, characterized in that: A connecting plate (5) is fixedly connected to one end of the top of the headrest (3), and the other end of the connecting plate (5) is fixedly connected to the backrest (2). The headrest (3) and the backrest (2) are fixedly connected via the connecting plate (5), and the connecting plate (5) is an arched structure as a whole.

9. The auxiliary device for treating dental diseases of young children according to claim 2, characterized in that: The bottom of the arc-shaped guide rail (9) is fixedly connected to a reset rod (15) extending to the bottom of the headrest (3); a reset arc groove (30) connected to the driving groove (31) is arranged inside the lower end of the headrest (3); the internal spacing of the reset arc groove (30) matches the outer diameter of the reset rod (15); the reset rod (15) is movably arranged inside and outside the headrest (3) through the reset arc groove (30).

10. A method for using the auxiliary device for treating dental diseases of young children according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, before performing dental treatment on a young patient, the young patient is allowed to sit on the seat (1) and the backrest (2), and the positioning block (6) is pressed to drive the plurality of clamps (24) and the top plate (50) to bend and cover the patient's forehead, thereby completing the fixation operation on the patient's head; S2, pushing the reset rod (15) to drive the turntable (8) to rotate in the opposite direction, thereby driving the plurality of clamping plates (24) and the top plate (50) to operate in the opposite direction to release the fixation operation on the patient's head; S3, performing rotation limiting on the plurality of clamping plates (24) and the top plate (50) by operating a limiting mechanism; S4. At the same time, in cooperation with the auxiliary mechanism, the rubber pad (25) and the sound insulation ring (7) are arranged to achieve soft contact when fixing the patient's head.

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