A neck support device

Abstract

This invention belongs to the field of medical device technology, and particularly relates to a neck support device, comprising two parallel and vertically arranged connecting rods. The upper part of each connecting rod has a bent section, with the two bent sections bending in directions close to each other. A horizontally arranged connecting rod is fixedly connected between the tops of the two connecting rods. A forehead fixation mechanism is movably connected to the horizontal connecting rod. A sliding collar is slidably fitted onto the bent section, and two sliding collars are movably connected to a chin fixation mechanism. A chest positioning mechanism is movably connected to the bottom ends of the two connecting rods. A chin auxiliary fixation mechanism is movably mounted at the top of the chest positioning mechanism. A back limiting rod is provided between the sliding collars and the chest positioning mechanism, with both ends of the back limiting rod slidably fitted onto the connecting rods. This invention further reduces obstruction to the patient's neck, thereby improving the convenience of examination for doctors, and can also assist in the correction of left or right cervical curvature deformities in patients.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to a neck support device. Background Technology

[0002] Head and neck surgery is an extension of otolaryngology, which gradually developed to meet the clinical diagnosis, treatment, and research needs of malignant tumors of the head and neck and otolaryngology. Head and neck surgical diseases can be classified into many types according to their onset time, location, and nature, broadly including: congenital neck diseases and malformations, inflammatory neck diseases, vascular neck diseases, thyroid and parathyroid diseases, submandibular gland diseases, parotid gland diseases, neck tumors and neck masses, etc.

[0003] In the diagnosis and treatment of head and neck diseases, neck support devices are often used to fix the head and neck to facilitate examination or treatment in a normal position. On the other hand, they also facilitate the correction of head and neck deformities. The invention patent with publication number CN113456257A discloses a multifunctional neck support device for otolaryngology head and neck surgery. When supporting the patient's neck, the connecting box structure of the device will obstruct the two sides of the patient's neck, making it inconvenient for doctors to examine the two sides of the patient's neck. In addition, when the patient's neck has a deformity that bends to the left or right, the device does not have the function of assisting in correction.

[0004] Therefore, a neck support device needs to be designed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a neck support device to solve the above-mentioned problems, thereby further reducing obstruction of the patient's neck and improving the convenience of doctors' examinations, while also assisting in the correction of left or right cervical curvature deformities in patients.

[0006] To achieve the above objectives, the present invention provides the following solution: a neck support device, comprising two parallel and vertically arranged connecting rods, each connecting rod having a bent section at its upper part, the bending directions of the two bent sections being close to each other, a horizontally arranged connecting rod being fixedly connected between the tops of the two connecting rods, a forehead fixing mechanism being movably connected to the horizontal connecting rod, a sliding collar being slidably sleeved on the bent section, a chin fixing mechanism being movably connected to the two sliding collars, a chest positioning mechanism being movably connected to the bottom ends of the two connecting rods, a chin auxiliary fixing mechanism being movably arranged at the top of the chest positioning mechanism, and a back limiting rod being arranged between the sliding collar and the chest positioning mechanism, with both ends of the back limiting rod slidably sleeved on the connecting rods.

[0007] Preferably, the forehead fixing mechanism includes an adjusting rod that slides through the middle of the horizontal connecting rod. The adjusting rod has several equally spaced adjusting through holes, and a second fixing pin slides through the adjusting through holes. The adjusting rod and the horizontal connecting rod are fixed by the second fixing pin, and a forehead positioning part is rotatably connected to the end of the adjusting rod.

[0008] Preferably, the forehead positioning part includes a first fixed semi-circle and a second fixed semi-circle. The ends of the first fixed semi-circle and the second fixed semi-circle that are close to each other are rotatably connected to the end of the adjusting rod through a rotating shaft. The other ends of the first fixed semi-circle and the second fixed semi-circle that are close to each other are detachably connected through an adjusting part. The end of the adjusting rod that is close to the first fixed semi-circle and the second fixed semi-circle is fixedly connected to a back arch support. The back arch support is located between the first fixed semi-circle and the second fixed semi-circle.

[0009] Preferably, the adjusting part includes an elongated arc, one end of which is fixedly connected to the end of the second fixed semi-arc away from the adjusting rod. The end of the first fixed semi-arc away from the adjusting rod is provided with an insertion groove. The elongated arc slides through the insertion groove. The top and bottom of the insertion groove are provided with a plurality of equally spaced adjusting positioning holes. Adjusting positioning pins slide through the adjusting positioning pins. The elongated arc is detachably connected to the insertion groove through the adjusting positioning pins.

[0010] Preferably, the mandibular fixation mechanism includes a fixed semicircle, a mandibular support is fixedly connected to the middle of the inner side of the fixed semicircle, and a rotary fine-tuning mechanism is detachably connected to both ends of the fixed semicircle. The rotary fine-tuning mechanism is rotatably connected to the two sliding collars on their mutually distant sidewalls.

[0011] Preferably, the rotary fine-tuning mechanism includes a first connecting rod, one end of which is fixedly connected to an adjusting ring. A fixed shaft is rotatably connected to the middle of the adjusting ring. The fixed shaft is fixedly connected to the outer wall of the sliding collar. A plurality of equally spaced limiting protrusions are fixedly connected to the outer wall of the adjusting ring. The side of the adjusting ring away from the first connecting rod abuts against a limiting arc plate. The limiting arc plate is fixedly connected to the outer wall of the sliding collar. A plurality of equally spaced limiting grooves are formed on the side wall of the limiting arc plate near the adjusting ring. The limiting protrusions are adapted to the limiting grooves. The other end of the first connecting rod is detachably connected to the fixed semicircular end via an elastic connecting part.

[0012] Preferably, the elastic connection includes a second connecting rod, one end of which is fixedly connected to a slide rod. The end of the first connecting rod away from the adjusting ring has a movable groove. The slide rod is slidably disposed in the movable groove. A plurality of springs are fixedly connected to one end of each spring on the side wall of the movable groove. The other end of each spring is fixedly connected to the slide rod. An annular protrusion is fixedly connected to the end of the outer side wall of the slide rod. A limiting ring is fixedly connected to the end of the inner side wall of the movable groove. The annular protrusion is adapted to the limiting ring. A connecting lug is fixedly connected to the end of the fixed semicircular part. The connecting lug is detachably connected to the other end of the second connecting rod by a third fixing pin.

[0013] Preferably, the chest positioning mechanism includes a first L-rod and a second L-rod arranged opposite to each other. The end of the first L-rod is movably connected to the bottom of the connecting rod, and the end of the second L-rod is movably connected to the bottom of another connecting rod. The ends of the first L-rod and the second L-rod that are close to each other are detachably connected. A first adjustment groove is provided at the top of the first L-rod, and a second adjustment groove is provided at the top of the second L-rod. The chin auxiliary fixing mechanism is movably disposed in the first adjustment groove and the second adjustment groove.

[0014] Preferably, a positioning lug is fixedly connected to the end of the first L-rod away from the connecting rod, and the positioning lug is detachably connected to the end of the second L-rod away from the connecting rod via a positioning pin.

[0015] Preferably, the mandibular auxiliary fixing mechanism includes two telescopic rods. One telescopic rod has an adjustable ball fixedly connected to its bottom end, and the adjustable ball is movably disposed in the first adjusting groove. The other telescopic rod has the adjustable ball fixedly connected to its bottom end, and the adjustable ball is movably disposed in the second adjusting groove. The top ends of the two telescopic rods are respectively fixedly connected to mandibular side supports.

[0016] Compared with the prior art, the present invention has the following advantages and technical effects:

[0017] The two connecting rods in this invention form the supporting framework of the entire device. The forehead fixing mechanism located at the top of the connecting rods can fix the entire device to the patient's forehead. The mandibular fixing mechanism located on the bent section can fix the position of the patient's mandible. Since the connection between the mandibular fixing mechanism and the bent section is movable, after the patient's mandible is fixed by the mandibular fixing mechanism, the position of the mandibular fixing mechanism can be adjusted by adjusting the upper and lower positions of the sliding collar on the bent section, thereby preventing the mandibular fixing mechanism from obstructing the sides of the patient's neck, facilitating the doctor's examination. The chest positioning mechanism can be fixed to the patient's chest, further improving the stability of the device when worn by the patient. The mandibular auxiliary fixing mechanism, which is movable at the top of the chest positioning mechanism, can not only assist the mandibular fixing mechanism in fixing the patient's mandible, but can also be adjusted to support the patient's mandible on one side, thereby achieving the purpose of assisting in the correction of the patient's neck curvature to the left or right. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention;

[0020] Figure 2 This is a cross-sectional view of the device of the present invention;

[0021] Figure 3 for Figure 2 A magnified view of part A in the image;

[0022] Figure 4 for Figure 2 A magnified view of part B in the image;

[0023] Figure 5 This is a top view of the forehead fixing mechanism of the present invention;

[0024] Figure 6 This is a top view of the mandibular fixation mechanism of the present invention;

[0025] Figure 7 This is a top view of the chest fixation mechanism of the present invention;

[0026] Figure 8 This is a schematic diagram showing the connection between the first L-bar and the second L-bar of the present invention;

[0027] Figure 9 This is a side view of the two connecting rods of the present invention.

[0028] The components include: 1. Connecting rod; 2. Bent section; 3. Adjusting rod; 4. First fixed semi-circle; 5. Sliding collar; 6. Fixing bolt; 7. First connecting rod; 8. Second connecting rod; 9. Fixed semi-circle; 10. Chin support; 11. First L-shaped rod; 12. Telescopic rod; 13. Adjusting limit pin; 15. Chin side support; 16. Back limit rod; 17. Adjusting insertion hole; 18. Adjusting ball; 19. First adjusting groove; 20. Horizontal connecting rod; 21. Rotating shaft; 22. Second fixing pin; 23. Adjustment... 24. Through hole; 25. Limiting arc plate; 26. Adjusting ring; 27. Limiting protrusion; 28. Fixed shaft; 29. ​​Movable groove; 30. Spring; 31. Slide rod; 32. Annular protrusion; 33. Connecting lug; 34. Third fixing pin; 35. Second fixing semi-arc; 36. Extended arc; 37. Insertion groove; 38. Adjusting positioning pin; 39. Adjusting positioning hole; 40. Back arch support; 41. Second L rod; 42. Second adjusting groove; 43. Positioning pin; 44. Positioning lug; 45. Limiting retaining ring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figures 1-9 This invention provides a neck support device, comprising two parallel and vertically arranged connecting rods 1. The upper part of the connecting rod 1 is provided with a bent section 2, and the bending directions of the two bent sections 2 are close to each other. A horizontally arranged horizontal connecting rod 20 is fixedly connected between the tops of the two connecting rods 1. A forehead fixing mechanism is movably connected to the horizontal connecting rod 20. A sliding collar 5 is slidably sleeved on the bent section 2. A chin fixing mechanism is movably connected to the two sliding collars 5. A chest positioning mechanism is movably connected to the bottom of the two connecting rods 1. A chin auxiliary fixing mechanism is movably arranged at the top of the chest positioning mechanism. A back limiting rod 16 is provided between the sliding collar 5 and the chest positioning mechanism. The two ends of the back limiting rod 16 are slidably sleeved on the connecting rods 1 respectively.

[0032] The two connecting rods 1 form the supporting frame of the entire device. The forehead fixing mechanism at the top of the connecting rods 1 can fix the entire device to the patient's forehead. The mandibular fixing mechanism on the bent section 2 can fix the position of the patient's mandible. Since the mandibular fixing mechanism is connected to the bent section 2 in a movable way, after the patient's mandible is fixed by the mandibular fixing mechanism, the position of the mandibular fixing mechanism can be adjusted by adjusting the upper and lower positions of the sliding collar 5 on the bent section 2. This ensures that the mandibular fixing mechanism does not obstruct the sides of the patient's neck, making it easier for doctors to examine. The chest positioning mechanism can be fixed to the patient's chest, further improving the stability of the device when worn on the patient. The mandibular auxiliary fixing mechanism, which is movable at the top of the chest positioning mechanism, can not only assist the mandibular fixing mechanism in fixing the patient's mandible, but can also be adjusted to support the patient's mandible on one side, thereby achieving the purpose of assisting in the correction of the patient's neck curvature to the left or right.

[0033] The design is further optimized. The forehead fixing mechanism includes an adjusting rod 3, which slides through the middle of the horizontal connecting rod 20. The adjusting rod 3 has several equally spaced adjusting through holes 23. A second fixing pin 22 slides through the adjusting through holes 23. The adjusting rod 3 and the horizontal connecting rod 20 are fixed by the second fixing pin 22. The end of the adjusting rod 3 is rotatably connected to the forehead positioning part.

[0034] The design is further optimized. The forehead positioning part includes a first fixed semi-circle 4 and a second fixed semi-circle 34. The ends of the first fixed semi-circle 4 and the second fixed semi-circle 34 that are close to each other are rotatably connected to the end of the adjusting rod 3 through a rotating shaft 21. The other ends of the first fixed semi-circle 4 and the second fixed semi-circle 34 that are close to each other are detachably connected through an adjusting part. The end of the adjusting rod 3 that is close to the first fixed semi-circle 4 and the second fixed semi-circle 34 is fixedly connected to a back arch support 39. The back arch support 39 is located between the first fixed semi-circle 4 and the second fixed semi-circle 34.

[0035] The scheme is further optimized. The adjustment part includes an extended arc 35. One end of the extended arc 35 is fixedly connected to the end of the second fixed semi-arc 34 away from the adjustment rod 3. The end of the first fixed semi-arc 4 away from the adjustment rod 3 is provided with an insertion groove 36. The extended arc 35 slides through the insertion groove 36. The top and bottom of the insertion groove 36 are provided with a number of equally spaced adjustment positioning holes 38. Adjustment positioning pins 37 slide through the adjustment positioning pins 37. The extended arc 35 is detachably connected to the insertion groove 36 through the adjustment positioning pins 37.

[0036] When the patient puts on the support device, firstly, open the first fixed semi-arc 4 and the second fixed semi-arc 34. The patient rests their head between the first fixed semi-arc 4 and the second fixed semi-arc 34, and places the back of their head against the back arch support 39. Then, insert the extended arc 35 into the insertion slot 36 until the first fixed semi-arc 4, the second fixed semi-arc 34, and the back arch support 39 fix the patient's head. Adjust the length of the extended arc 35 inserted into the insertion slot 36 appropriately to ensure that the device is stably fixed without causing discomfort to the patient. Then, insert the adjusting positioning pin 37 into the corresponding adjusting positioning hole 38 to complete the fixed connection between the extended arc 35 and the first fixed semi-arc 4. After that, adjust the insertion position of the adjusting rod 3 in the horizontal connecting rod 20 to ensure that the patient's neck posture meets the doctor's examination requirements. Then, the second fixing pin 22 passes through the horizontal connecting rod 20 and the corresponding adjusting through hole 23 on the adjusting rod 3 in sequence to complete the fixing and adjustment of the entire forehead fixation mechanism.

[0037] The scheme is further optimized. The mandibular fixation mechanism includes a fixed semicircle 9, a mandibular support 10 is fixedly connected to the middle of the inner side of the fixed semicircle 9, and a rotary fine-tuning mechanism is detachably connected to both ends of the fixed semicircle 9. The rotary fine-tuning mechanism is rotatably connected to the side walls of the two sliding collars 5 that are far apart from each other.

[0038] The scheme is further optimized. The rotary fine-tuning mechanism includes a first connecting rod 7. One end of the first connecting rod 7 is fixedly connected to an adjusting ring 25. A fixed shaft 27 is rotatably connected to the middle of the adjusting ring 25. The fixed shaft 27 is fixedly connected to the outer wall of the sliding collar 5. Several equally spaced limiting protrusions 26 are fixedly connected to the outer wall of the adjusting ring 25. The side of the adjusting ring 25 away from the first connecting rod 7 abuts against a limiting arc plate 24. The limiting arc plate 24 is fixedly connected to the outer wall of the sliding collar 5. Several equally spaced limiting grooves are opened on the side wall of the limiting arc plate 24 near the adjusting ring 25. The limiting protrusions 26 are adapted to the limiting grooves. The other end of the first connecting rod 7 is detachably connected to the end of the fixed semicircle 9 through an elastic connecting part.

[0039] The optimized design includes a second connecting rod 8, with a slide rod 30 fixedly connected to one end of the second connecting rod 8. A movable groove 28 is provided at the end of the first connecting rod 7 away from the adjusting ring 25. The slide rod 30 is slidably disposed in the movable groove 28. Several springs 29 are fixedly connected to one end of each side wall of the movable groove 28. The other end of each spring 29 is fixedly connected to the slide rod 30. An annular protrusion 31 is fixedly connected to the end of the outer side wall of the slide rod 30. A limiting ring 44 is fixedly connected to the end of the inner side wall of the movable groove 28. The annular protrusion 31 is adapted to the limiting ring 44. A connecting lug 32 is fixedly connected to the end of the fixed semicircle 9. The connecting lug 32 is detachably connected to the other end of the second connecting rod 8 via a third fixing pin 33.

[0040] Before fixing the device to the patient's forehead, first remove the fixing semicircle 9 from the two second connecting rods 8. After fixing the device to the patient's forehead, reinstall the fixing semicircle 9 onto the two second connecting rods 8. After installation, position the chin rest 10 against the patient's chin. Then adjust the position of the sliding collar 5 on the bent section 2 until the first connecting rod 7, the second connecting rod 8, and the fixing semicircle 9 do not obstruct the sides of the patient's neck. After adjusting to the appropriate position, screw the fixing bolt 6 into the sliding collar 5 until the end of the fixing bolt 6 abuts against the bent section 2. On the outer wall, the position of the sliding collar 5 is thus fixed. During the adjustment of the sliding collar 5, due to the rotation setting of the adjusting ring 25 and the fixed shaft 27 and the matching design of the limiting protrusion 26 and the limiting groove, the first connecting rod 7 can rotate a certain angle relative to the sliding collar 5 and then automatically lock. After the patient's jaw is fixed, the jaw will move up and down continuously during communication. At this time, the slide rod 30 will slide continuously in the movable groove 28 and can automatically reset under the elastic force of the spring 29, without affecting the patient's normal communication when wearing the device.

[0041] The scheme is further optimized. The chest positioning mechanism includes a first L-rod 11 and a second L-rod 40 arranged opposite to each other. The end of the first L-rod 11 is movably connected to the bottom of the connecting rod 1, and the end of the second L-rod 40 is movably connected to the bottom of another connecting rod 1. The ends of the first L-rod 11 and the second L-rod 40 that are close to each other are detachably connected. The top of the first L-rod 11 is provided with a first adjustment groove 19, and the top of the second L-rod 40 is provided with a second adjustment groove 41. The chin auxiliary fixing mechanism is movably disposed in the first adjustment groove 19 and the second adjustment groove 41.

[0042] In a further optimized design, a positioning lug 43 is fixedly connected to the end of the first L-rod 11 away from the connecting rod 1. The positioning lug 43 is detachably connected to the end of the second L-rod 40 away from the connecting rod 1 via a positioning pin 42.

[0043] The scheme is further optimized. The mandibular auxiliary fixation mechanism includes two telescopic rods 12. One telescopic rod 12 is fixedly connected to an adjusting ball 18 at its bottom end. The adjusting ball 18 is movably set in the first adjusting groove 19. The other telescopic rod 12 is fixedly connected to an adjusting ball 18 at its bottom end. The adjusting ball 18 is movably set in the second adjusting groove 41. The top ends of the two telescopic rods 12 are respectively fixedly connected to mandibular side supports 15.

[0044] Before the device is worn, the first L-bar 11 and the second L-bar 40 are in the open state. After the patient's forehead and chin are fixed, the first L-bar 11 and the second L-bar 40 are locked by the positioning pin 42 to fix the device in the patient's chest. After fixing, the two telescopic rods 12 are moved to the appropriate positions on the left and right sides of the patient, and then the telescopic rods 12 are controlled to extend and retract until the chin support 15 rests against the appropriate positions on the left and right sides of the patient's chin. This completes the wearing of the device and the fixation of the patient's neck.

[0045] The bottom side wall of the connecting rod 1 has several equally spaced adjustment holes 17. By inserting the adjusting limit pin 13 into the corresponding adjustment hole 17, the first L rod 11 and the second L rod 40 can be fixed on the connecting rod 1. The multiple adjustment holes 17 can adjust the distance between the first L rod 11, the second L rod 40 and the fixed semicircle 9 according to the different body shapes of the patients, thereby improving the range of use of the device.

[0046] The working process of this invention is as follows:

[0047] When a doctor needs to examine a patient's neck while the patient is wearing the support device, the two telescopic rods 12 will not interfere with the doctor's examination when examining the front of the neck, allowing the doctor to perform the examination normally. When examining the sides of the patient's neck, the doctor can adjust the position of the two telescopic rods 12 so that they are moved from the left and right sides of the patient to the front of the patient, temporarily releasing the support of the chin support 15. Then the doctor can perform the examination of the left and right sides of the patient's neck normally. After the examination is completed, the two telescopic rods 12 are reset and the chin support 15 resumes its support for the patient.

[0048] When using this device to correct a patient's left or right cervical curvature deformity, adjust the telescopic rod 12 in the corresponding direction to face the direction of curvature according to the direction of the patient's cervical curvature. Then, control the extension of the telescopic rod 12 so that the mandibular support 15 rests against the patient's mandibular curvature side. Continue to control the extension of the telescopic rod 12 until the mandibular support 15 pushes the patient's curved neck to a normal state. Then, control the device to maintain this state to correct the patient.

[0049] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0050] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A neck support device, characterized in that, The device includes two parallel and vertically arranged connecting rods (1). The upper part of each connecting rod (1) is provided with a bent section (2). The bending directions of the two bent sections (2) are close to each other. The tops of the two connecting rods (1) are fixedly connected to a horizontally arranged horizontal connecting rod (20). A forehead fixing mechanism is movably connected to the horizontal connecting rod (20). A sliding collar (5) is slidably sleeved on the bent section (2). The two sliding collars (5) are movably connected to a chin fixing mechanism. The bottom ends of the two connecting rods (1) are movably connected to a chest positioning mechanism. A chin auxiliary fixing mechanism is movably arranged at the top of the chest positioning mechanism. A back limiting rod (16) is provided between the sliding collar (5) and the chest positioning mechanism. The two ends of the back limiting rod (16) are slidably sleeved on the connecting rods (1). The forehead fixing mechanism includes an adjusting rod (3), which slides through the middle of the horizontal connecting rod (20). The adjusting rod (3) has several equally spaced adjusting through holes (23), and a second fixing pin (22) slides through the adjusting through holes (23). The adjusting rod (3) and the horizontal connecting rod (20) are fixed by the second fixing pin (22). The end of the adjusting rod (3) is rotatably connected to a forehead positioning part. The mandibular fixation mechanism includes a fixed semicircle (9), a mandibular support (10) is fixedly connected to the middle of the inner side of the fixed semicircle (9), and a rotary fine adjustment mechanism is detachably connected to both ends of the fixed semicircle (9). The rotary fine adjustment mechanism is rotatably connected to the side walls of the two sliding collars (5) that are far apart from each other. The chest positioning mechanism includes a first L-rod (11) and a second L-rod (40) arranged opposite to each other. The end of the first L-rod (11) is movably connected to the bottom of the connecting rod (1), and the end of the second L-rod (40) is movably connected to the bottom of the other connecting rod (1). The ends of the first L-rod (11) and the second L-rod (40) that are close to each other are detachably connected. The top of the first L-rod (11) is provided with a first adjustment groove (19), and the top of the second L-rod (40) is provided with a second adjustment groove (41). The chin auxiliary fixing mechanism is movably arranged in the first adjustment groove (19) and the second adjustment groove (41). The end of the first L rod (11) away from the connecting rod (1) is fixedly connected to a positioning lug (43), and the positioning lug (43) is detachably connected to the end of the second L rod (40) away from the connecting rod (1) by a positioning pin (42).

2. A neck support device according to claim 1, characterized in that, The forehead positioning part includes a first fixed semi-circle (4) and a second fixed semi-circle (34). The ends of the first fixed semi-circle (4) and the second fixed semi-circle (34) that are close to each other are rotatably connected to the end of the adjusting rod (3) through a rotating shaft (21). The other ends of the first fixed semi-circle (4) and the second fixed semi-circle (34) that are close to each other are detachably connected through an adjusting part. The end of the adjusting rod (3) that is close to the first fixed semi-circle (4) and the second fixed semi-circle (34) is fixedly connected to a back arch support (39). The back arch support (39) is located between the first fixed semi-circle (4) and the second fixed semi-circle (34).

3. A neck support device according to claim 2, characterized in that, The adjustment part includes an extended arc (35), one end of which is fixedly connected to the end of the second fixed semi-arc (34) away from the adjustment rod (3). The end of the first fixed semi-arc (4) away from the adjustment rod (3) is provided with an insertion groove (36). The extended arc (35) slides through the insertion groove (36). The top and bottom of the insertion groove (36) are provided with a plurality of equally spaced adjustment positioning holes (38). An adjustment positioning pin (37) slides through the adjustment positioning hole (38). The extended arc (35) is detachably connected to the insertion groove (36) through the adjustment positioning pin (37).

4. A neck support device according to claim 1, characterized in that, The rotary fine-tuning mechanism includes a first connecting rod (7), one end of which is fixedly connected to an adjusting ring (25). A fixed shaft (27) is rotatably connected to the middle of the adjusting ring (25). The fixed shaft (27) is fixedly connected to the outer wall of the sliding collar (5). A plurality of equally spaced limiting protrusions (26) are fixedly connected to the outer wall of the adjusting ring (25). The side of the adjusting ring (25) away from the first connecting rod (7) abuts against a limiting arc plate (24). The limiting arc plate (24) is fixedly connected to the outer wall of the sliding collar (5). A plurality of equally spaced limiting grooves are opened on the side wall of the limiting arc plate (24) near the adjusting ring (25). The limiting protrusions (26) are adapted to the limiting grooves. The other end of the first connecting rod (7) is detachably connected to the end of the fixed semicircle (9) through an elastic connecting part.

5. A neck support device according to claim 4, characterized in that, The elastic connection includes a second connecting rod (8), one end of which is fixedly connected to a slide rod (30). The end of the first connecting rod (7) away from the adjusting ring (25) is provided with a movable groove (28). The slide rod (30) is slidably disposed in the movable groove (28). One end of several springs (29) is fixedly connected to the side wall of the movable groove (28). The other end of the springs (29) is fixedly connected to the slide rod (30). An annular protrusion (31) is fixedly connected to the outer side wall end of the slide rod (30). A limiting ring (44) is fixedly connected to the inner side wall end of the movable groove (28). The annular protrusion (31) is adapted to the limiting ring (44). A connecting lug (32) is fixedly connected to the end of the fixed semicircle (9). The connecting lug (32) is detachably connected to the other end of the second connecting rod (8) through a third fixing pin (33).

6. A neck support device according to claim 1, characterized in that, The mandibular auxiliary fixation mechanism includes two telescopic rods (12). One telescopic rod (12) has an adjustable ball (18) fixedly connected to its bottom end. The adjustable ball (18) is movably disposed in the first adjustment groove (19). The other telescopic rod (12) has the adjustable ball (18) fixedly connected to its bottom end. The adjustable ball (18) is movably disposed in the second adjustment groove (41). The top ends of the two telescopic rods (12) are respectively fixedly connected to mandibular side supports (15).

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