Writing auxiliary device for Parkinson's patient

Abstract

The invention relates to a Parkinson patient writing auxiliary device which comprises a base, and a first protective shell is arranged at the top end of the base. The adjusting mechanism is provided with two power output ends, and the adjusting mechanism is arranged in the first protective shell; the two supporting mechanisms are arranged on the base and are in transmission connection with the two power output ends of the adjusting mechanism correspondingly, and the adjusting mechanism is used for adjusting the heights of the two supporting mechanisms; the fixing plate is hinged to the top ends of the two supporting mechanisms, and a writing board is arranged at the top end of the fixing plate; the forearm fixing mechanism is arranged on one side wall of the fixing plate, and the forearm fixing mechanism is used for fixing the right forearm of the patient. The adjusting mechanism can adjust the heights of the two supporting mechanisms at the same time, the fixing plate and the writing plate are adjusted to the height matched with the height of a patient, the comfort degree of the patient during use is improved, the two supporting mechanisms can be adjusted to different heights, and the fixing plate and the writing plate incline towards the patient by a certain angle; and the comfort degree of the patient during use is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rehabilitation auxiliary devices, and in particular relates to a writing auxiliary device for Parkinson's patients. Background Art

[0002] Parkinson's disease is a common neurodegenerative disease, which is more common in the elderly, with an average age of onset of about 60 years old. Parkinson's disease in young people under 40 years old is rare. The prevalence of PD in people over 65 years old in my country is about 1.7%. Most Parkinson's disease patients are sporadic cases, and only less than 10% of patients have a family history. The main pathological change of Parkinson's disease is the degeneration and death of dopaminergic neurons in the substantia nigra in the brain, which causes a significant decrease in the dopamine content in the striatum and causes the disease. The exact cause of this pathological change is still unclear. Genetic factors, environmental factors, aging, oxidative stress, etc. may all be involved in the degeneration and death of PD dopaminergic neurons. Parkinson's disease has an insidious onset and progresses slowly. The first symptom is usually tremor or clumsy movement of one limb, which then affects the contralateral limb. Clinically, it mainly manifests as resting tremor, bradykinesia, muscle rigidity and posture gait disorders. Existing writing assistive devices are not suitable for Parkinson's patients. It is inconvenient to adjust the angle of the writing board and the height of the assistive device, which can easily cause fatigue in the waist, back and arms of Parkinson's patients, affecting the use of Parkinson's patients.

[0003] Therefore, it is necessary to design a writing assistive device for Parkinson's patients to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a writing assistive device for Parkinson's disease patients to solve the above-mentioned problems and achieve the purpose of improving the use effect of the patients.

[0005] To achieve the above object, the present invention provides the following solution: a writing assistive device for Parkinson's disease patients, comprising

[0006] A base, with a protective shell 1 disposed on the top;

[0007] An adjusting mechanism, having two power output ends, wherein the adjusting mechanism is arranged in the protective shell 1;

[0008] Two groups of support mechanisms are arranged on the base, the two groups of support mechanisms are respectively connected to the two power output ends of the adjustment mechanism, and the adjustment mechanism is used to adjust the height of the two groups of support mechanisms;

[0009] A fixed plate, hinged to the top ends of the two groups of support mechanisms, with a writing board disposed on the top end of the fixed plate;

[0010] The forearm fixing mechanism is arranged on a side wall of the fixing plate, and is used to fix the right forearm of the patient.

[0011] A writing auxiliary device for Parkinson's disease patients based on the present invention, the forearm fixing mechanism includes a protective shell three, the protective shell three is fixedly connected to the side wall of the fixing plate, the top wall of the protective shell three is provided with a strip hole three, one end of the inside of the protective shell three is fixedly connected to a motor, the motor output shaft is fixedly connected to one end of a lead screw, the other end of the lead screw is rotatably connected to the other end of the inside of the protective shell three, a slider is threadedly connected to the outer wall of the lead screw, the slider is slidably arranged in the strip hole three, the top of the slider is fixedly connected to a rotating part, the top of the rotating part is fixedly connected to a fixing ring, the side wall of the fixing ring is fixedly connected to two damping slide cylinders, the two damping slide cylinders are in the same horizontal plane, the end of the damping slide cylinder away from the fixing ring is slidably connected to one end of a damping slide rod, and the other ends of the two damping slide rods are commonly fixedly connected to a finger fixing part.

[0012] A writing assistive device for Parkinson's disease patients according to the present invention, the rotating part comprises a slide plate, the slide plate is fixedly connected to the top of the slider, the top of the slide plate is fixedly connected to a fixing seat, the top of the fixing seat is rotatably connected to a rotating table, the fixing ring is fixedly connected to the top of the rotating table, the inner side wall of the fixing ring is fixedly connected to a plurality of rubber rings, and the plurality of rubber rings are arranged at equal intervals.

[0013] A writing assistive device for Parkinson's disease patients according to the present invention, the finger fixing part comprises a fixing arc 1 and a fixing arc 2, the fixing arc 1 is fixedly connected to one of the damping slide bars, the inner concave surface of the fixing arc 1 is fixedly connected to a finger ring via an elastic rope, the fixing arc 2 is fixedly connected to another of the damping slide bars, the inner concave surface of the fixing arc 2 is fixedly connected to four of the finger rings via the elastic rope.

[0014] A writing auxiliary device for Parkinson's disease patients according to the present invention, the adjustment mechanism comprises a second protective shell, the second protective shell is fixedly arranged at the middle of the top of the first protective shell, the second protective shell has two second strip holes on the top wall, the two second strip holes are not connected, a dual-axis motor is fixedly connected to the middle of the inner side of the second protective shell, two output shafts of the dual-axis motor are provided with support ears, two output shafts of the dual-axis motor are coaxially slidably connected with a driving bevel gear, an ear groove is provided on the inner side wall of the driving bevel gear, the ear groove is matched with the support ear, the driving bevel gear is meshed with a driven bevel gear, the driven bevel gear and the driving bevel gear are perpendicular to each other, the inner side wall of the driven bevel gear is coaxially fixedly connected with a vertically arranged rotating shaft, the rotating shaft is rotatably arranged inside the first protective shell and is rotatably connected to the top of the base, the outer side wall of the rotating shaft is coaxially fixedly connected with a driving gear, the support mechanism is transmission-connected with the driving gear, a toggle portion is provided on the outer top of the driving bevel gear, and the toggle portion is slidably arranged in the second strip hole.

[0015] A writing assistive device for Parkinson's disease patients according to the present invention, the shifting part comprises a shift fork, the shift fork is arranged at the outer top of the active bevel gear, the top of the shift fork is fixedly connected to the bottom end of a shift rod with a numerical setting, the shift rod is slidably arranged in the second strip hole, the outer side wall of the shift rod is fixedly connected to a positioning ring, and the bottom end of the positioning ring is in sliding contact with the top end of the protective shell.

[0016] A writing assistive device for Parkinson's disease patients according to the present invention, the support mechanism comprises two screws, the screws are rotatably arranged in a through hole opened on a top wall of the protective shell, the bottom end of the screws is rotatably connected to the top end of the base, a driven gear is coaxially fixedly connected to the bottom of the outer wall of the screw, the driven gear is meshed with the driving gear, a sleeve is threadedly connected to the top end of the screw, a hinge is fixedly connected to the top end of the sleeve, and the fixing plate is fixedly connected to the top end of the hinge.

[0017] A writing assistive device for Parkinson's disease patients according to the present invention, the hinged portion comprises a hinged block, the hinged block is fixedly connected to the top end of the sleeve, the top ends of two opposite side walls of the hinged block are respectively fixedly connected with hinge shafts, the two hinge shafts are rotatably connected together with the bottom end of the hinged seat, and the top end of the hinged seat is fixedly connected to the bottom end of the fixed plate.

[0018] In the writing assistive device for Parkinson's disease patients according to the present invention, the threads of the two screw rods in each group of the supporting mechanisms have opposite rotation directions.

[0019] According to the writing auxiliary device for Parkinson's disease patients of the present invention, the top of the fixed plate is fixedly connected to a limit frame, the writing board is slidably arranged in the limit frame, and a toggle block is fixedly connected to one side wall of the writing board.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] The present invention can adjust the heights of the two groups of supporting mechanisms at the same time through the adjustment mechanism, so that the fixing plate and the writing board are adjusted to heights suitable for the patient's height, thereby improving the patient's comfort level when using the device. The adjustment mechanism can also adjust the two groups of supporting mechanisms to different heights, so that the fixing plate and the writing board can be tilted toward the patient at a certain angle, further improving the patient's comfort level when using the device. The forearm fixing mechanism can fix the patient's right forearm to assist the patient in writing exercises, thereby achieving the purpose of helping the patient recover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0023] Figure 1 It is an overall schematic diagram of the present invention;

[0024] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0025] Figure 3 for Figure 1 A partial enlarged view of B in the middle;

[0026] Figure 4 It is a bottom schematic diagram of the present invention;

[0027] Figure 5 It is a schematic diagram of the regulating mechanism of the present invention;

[0028] Figure 6 This is a schematic diagram of the interior of a protective shell of the present invention.

[0029] Among them, 1. base; 2. protective shell 1; 3. screw; 4. sleeve; 5. protective shell 2; 6. strip hole 2; 7. fixed plate; 8. limit frame; 9. writing board; 10. toggle block; 11. protective shell 3; 12. strip hole 3; 13. fixed ring; 14. damping slide cylinder; 15. damping slide rod; 16. fixed arc 1; 17. fixed arc 2; 18. elastic rope; 19. finger ring; 20. skateboard; 21. Fixed seat; 22. Rotating table; 23. Rubber ring; 24. Articulated block; 25. Articulated shaft; 26. Articulated seat; 27. Motor; 28. Lead screw; 29. ​​Slider; 30. Through hole; 31. Double-axis motor; 32. Support ear; 33. Active bevel gear; 34. Driven bevel gear; 35. Shift fork; 36. Shift lever; 37. Positioning ring; 38. Rotating shaft; 39. Active gear; 40. Driven gear. DETAILED DESCRIPTION

[0030] 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.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 6 As shown, the present invention provides a writing assistive device for Parkinson's disease patients, comprising

[0033] A base 1, with a protective shell 2 disposed on the top;

[0034] The regulating mechanism has two power output ends, and the regulating mechanism is arranged in the protective shell 2;

[0035] Two groups of supporting mechanisms are arranged on the base 1, and the two groups of supporting mechanisms are respectively connected to the two power output ends of the adjusting mechanism, and the adjusting mechanism is used to adjust the height of the two groups of supporting mechanisms;

[0036] A fixed plate 7 is hinged to the top of the two sets of supporting mechanisms, and a writing board 9 is arranged on the top of the fixed plate 7;

[0037] The forearm fixing mechanism is arranged on a side wall of the fixing plate 7, and is used to fix the right forearm of the patient.

[0038] Furthermore, the forearm fixing mechanism includes a protective shell three 11, which is fixedly connected to the side wall of the fixing plate 7, and a strip hole three 12 is opened on the top wall of the protective shell three 11. A motor 27 is fixedly connected to one end of the protective shell three 11, and the output shaft of the motor 27 is fixedly connected to one end of a lead screw 28, and the other end of the lead screw 28 is rotatably connected to the other end of the protective shell three 11. A slider 29 is threadedly connected to the outer wall of the lead screw 28, and the slider 29 is slidably arranged in the strip hole three 12. A rotating part is fixedly connected to the top of the slider 29, and a fixing ring 13 is fixedly connected to the top of the rotating part. Two damping slide cylinders 14 are fixedly connected to the side wall of the fixing ring 13, and the two damping slide cylinders 14 are in the same horizontal plane. One end of the damping slide cylinder 14 away from the fixing ring 13 is slidably connected to one end of a damping slide rod 15, and the other ends of the two damping slide rods 15 are commonly fixedly connected to a finger fixing part.

[0039] Furthermore, the rotating part includes a slide plate 20, which is fixedly connected to the top of the slider 29, and a fixed seat 21 is fixedly connected to the top of the slide plate 20, and a rotating table 22 is rotatably connected to the top of the fixed seat 21, and a fixed ring 13 is fixedly connected to the top of the rotating table 22, and a plurality of rubber rings 23 are fixedly connected to the inner side wall of the fixed ring 13, and the plurality of rubber rings 23 are arranged at equal intervals.

[0040] Furthermore, the finger fixing part includes a fixed arc 16 and a fixed arc 2 17. The fixed arc 16 is fixedly connected to one of the damping slide bars 15. The inner concave surface of the fixed arc 16 is fixedly connected to a finger ring 19 via an elastic rope 18. The fixed arc 2 17 is fixedly connected to the other damping slide bar 15. The inner concave surface of the fixed arc 2 17 is fixedly connected to four finger rings 19 via elastic ropes 18.

[0041] Further, the adjustment mechanism includes a protective shell 25, which is fixedly arranged in the middle of the top of the protective shell 12, and the top wall of the protective shell 25 is provided with two strip holes 26, and the two strip holes 26 are not connected. A dual-axis motor 31 is fixedly connected to the middle of the inner side of the protective shell 25, and the two output shafts of the dual-axis motor 31 are provided with ears 32. The two output shafts of the dual-axis motor 31 are coaxially slidably connected with an active bevel gear 33, and the inner wall of the active bevel gear 33 is provided with an ear groove, and the ear groove is adapted to the ear 32. The driving bevel gear 33 is meshed with the driven bevel gear 34, and the driven bevel gear 34 is perpendicular to the driving bevel gear 33. The inner wall of the driven bevel gear 34 is coaxially fixedly connected with a vertically arranged rotating shaft 38. The rotating shaft 38 is rotatably arranged inside the protective shell 2 and is rotatably connected to the top of the base 1. The outer wall of the rotating shaft 38 is coaxially fixedly connected with a driving gear 39. The supporting mechanism is transmission-connected to the driving gear 39. A toggle portion is arranged on the outer top of the driving bevel gear 33, and the toggle portion is slidably arranged in the strip hole 6.

[0042] Furthermore, the shifting part includes a shift fork 35, which is arranged on the outer top of the active bevel gear 33. The top of the shift fork 35 is fixedly connected to the bottom end of a numerically set shift rod 36. The shift rod 36 is slidably set in the strip hole 26. The outer wall of the shift rod 36 is fixedly connected to a positioning ring 37, and the bottom end of the positioning ring 37 is in sliding contact with the top of the protective shell 2.

[0043] Furthermore, the supporting mechanism includes two screws 3, which are rotatably arranged in a through hole 30 opened in the top wall of the protective shell 2, and the bottom end of the screw 3 is rotatably connected to the top of the base 1, and a driven gear 40 is coaxially fixedly connected to the bottom of the outer wall of the screw 3, and the driven gear 40 is meshed with the driving gear 39. The top of the screw 3 is threadedly connected to a sleeve 4, and the top of the sleeve 4 is fixedly connected to a hinge part, and the fixing plate 7 is fixedly connected to the top of the hinge part.

[0044] Furthermore, the hinged portion includes a hinge block 24, which is fixedly connected to the top of the sleeve 4, and the tops of the two opposite side walls of the hinge block 24 are respectively fixedly connected with hinge shafts 25, and the two hinge shafts 25 are rotatably connected to the bottom of the hinge seat 26, and the top of the hinge seat 26 is fixedly connected to the bottom of the fixed plate 7.

[0045] Furthermore, the thread rotation directions of the two screw rods 3 in each set of supporting mechanisms are opposite.

[0046] Furthermore, the top of the fixed plate 7 is fixedly connected to the limit frame 8, the writing board 9 is slidably arranged in the limit frame 8, and a toggle block 10 is fixedly connected to one side wall of the writing board 9.

[0047] The working process of the present invention is as follows:

[0048] When the patient uses the device to write, the height of the writing board 9 is adjusted first. During the adjustment, the driving bevel gear 33 at the two output ends of the dual-axis motor 31 is moved to the position of the support ear 32 through the fork 35, and the driving bevel gear 33 will mesh with the driven bevel gear 34, so that the driving bevel gear 33 and the driven bevel gear 34 can rotate under the drive of the output shaft of the dual-axis motor 31, and the driven bevel gear 34 then drives the driving gear 39 to rotate through the rotating shaft 38, and the driving gear 39 drives the screw 3 to rotate through the driven gear 40. Since the screw 3 is connected to the sleeve 4 through a thread, the sleeve 4 can be driven to rise or fall when the screw 3 rotates, so that the height of the writing board 9 can be adjusted. When the writing board 9 needs to be adjusted to tilt toward the patient, it is only necessary to move the driving bevel gear 33 at one end of the dual-axis motor 31 to a position that meshes with the driven bevel gear 34, and the driving bevel gear 33 at the other end is separated from the driven bevel gear 34. When the dual-axis motor 31 works in this state, it will only drive a set of driving bevel gears. The wheel 33 and the driven bevel gear 34 rotate, and the other set of active bevel gears 33 and the driven bevel gear 34 have no power transmission, so the height of one set of supporting mechanisms can be adjusted, while the height of the other set of supporting mechanisms remains unchanged, so the inclination angle of the writing board 9 can be adjusted. After the height and inclination angle of the writing board 9 are adjusted, the patient extends his right forearm into the fixing ring 13, and then inserts five fingers into the finger rings 19 respectively, and then holds the pen to start writing. Since the tension of the elastic rope 18 needs to be overcome when holding the pen, the muscles and strength of the hand can be exercised during the writing process. During the writing process, the angle between the right forearm and the right rear wall can be adjusted by the fixing seat 21 and the rotating table 22, so that the patient's right arm is in the most comfortable writing state. The left and right position of the patient's right arm on the fixing plate 7 can be adjusted by the motor 27 and the screw 28, and the up and down position of the writing board 9 on the fixing plate 7 can be adjusted by the toggle block 10. Multiple adjustment methods work together to greatly improve the comfort level of the patient when using the device.

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

[0050] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope of the present invention.

Claims

1. A writing assistive device for Parkinson's disease patients, characterized in that: include A base (1), with a protective shell (2) disposed on the top; An adjustment mechanism having two power output ends, wherein the adjustment mechanism is disposed in the protective shell 1 (2); Two groups of support mechanisms are arranged on the base (1), the two groups of support mechanisms are respectively connected in transmission with two power output ends of the adjustment mechanism, and the adjustment mechanism is used to adjust the height of the two groups of support mechanisms; A fixed plate (7) is hinged to the top ends of the two groups of support mechanisms, and a writing board (9) is provided on the top end of the fixed plate (7); A forearm fixing mechanism is arranged on a side wall of the fixing plate (7), and is used to fix the right forearm of the patient.

2. A writing assistive device for Parkinson's disease patients according to claim 1, characterized in that: The forearm fixing mechanism comprises a protective shell three (11), the protective shell three (11) is fixedly connected to the side wall of the fixing plate (7), the top wall of the protective shell three (11) is provided with a strip hole three (12), one end of the interior of the protective shell three (11) is fixedly connected to a motor (27), the output shaft of the motor (27) is fixedly connected to one end of a lead screw (28), the other end of the lead screw (28) is rotatably connected to the other end of the interior of the protective shell three (11), the outer wall of the lead screw (28) is threadedly connected to a slider (29), and the The slider (29) is slidably arranged in the strip hole three (12), the top of the slider (29) is fixedly connected to a rotating part, the top of the rotating part is fixedly connected to a fixing ring (13), the side wall of the fixing ring (13) is fixedly connected to two damping slide cylinders (14), the two damping slide cylinders (14) are in the same horizontal plane, one end of the damping slide cylinder (14) away from the fixing ring (13) is slidably connected to one end of a damping slide rod (15), and the other ends of the two damping slide rods (15) are commonly fixedly connected to a finger fixing part.

3. A writing assistive device for Parkinson's disease patients according to claim 2, characterized in that: The rotating part comprises a slide plate (20), the slide plate (20) is fixedly connected to the top of the slider (29), the top of the slide plate (20) is fixedly connected to a fixing seat (21), the top of the fixing seat (21) is rotatably connected to a rotating platform (22), the fixing ring (13) is fixedly connected to the top of the rotating platform (22), the inner side wall of the fixing ring (13) is fixedly connected to a plurality of rubber rings (23), and the plurality of rubber rings (23) are arranged at equal intervals.

4. A writing assistive device for Parkinson's disease patients according to claim 2, characterized in that: The finger fixing part comprises a fixing arc 1 (16) and a fixing arc 2 (17); the fixing arc 1 (16) is fixedly connected to one of the damping slide bars (15); the inner concave surface of the fixing arc 1 (16) is fixedly connected to a finger ring (19) via an elastic rope (18); the fixing arc 2 (17) is fixedly connected to another of the damping slide bars (15); the inner concave surface of the fixing arc 2 (17) is fixedly connected to four of the finger rings (19) via the elastic rope (18).

5. A writing assistive device for Parkinson's disease patients according to claim 1, characterized in that: The adjustment mechanism comprises a second protective shell (5), the second protective shell (5) being fixedly arranged at the middle of the top end of the first protective shell (2), the top wall of the second protective shell (5) being provided with two second strip holes (6), the two second strip holes (6) being not connected, a dual-axis motor (31) being fixedly connected at the middle of the inner side of the second protective shell (5), the two output shafts of the dual-axis motor (31) being provided with support ears (32), the two output shafts of the dual-axis motor (31) being coaxially slidably connected with a driving bevel gear (33), the inner side wall of the driving bevel gear (33) being provided with an ear groove, the ear groove being adapted to the support ears (32), the main The driven bevel gear (33) is meshed with a driven bevel gear (34), the driven bevel gear (34) and the driving bevel gear (33) are perpendicular to each other, the inner side wall of the driven bevel gear (34) is coaxially fixedly connected with a vertically arranged rotating shaft (38), the rotating shaft (38) is rotatably arranged inside the protective shell (2) and is rotatably connected to the top of the base (1), the outer side wall of the rotating shaft (38) is coaxially fixedly connected with a driving gear (39), the support mechanism is transmission-connected with the driving gear (39), and a toggle portion is arranged on the outer top of the driving bevel gear (33), and the toggle portion is slidably arranged in the second strip hole (6).

6. A writing assistive device for Parkinson's disease patients according to claim 5, characterized in that: The shifting part comprises a shift fork (35), the shift fork (35) is arranged at the outer top of the active bevel gear (33), the top of the shift fork (35) is fixedly connected to the bottom end of a numerically set shift rod (36), the shift rod (36) is slidably arranged in the second strip hole (6), the outer side wall of the shift rod (36) is fixedly connected to a positioning ring (37), and the bottom end of the positioning ring (37) is in sliding contact with the top of the first protective shell (2).

7. A writing assistive device for Parkinson's disease patients according to claim 5, characterized in that: The support mechanism comprises two screw rods (3), the screw rods (3) are rotatably arranged in a through hole (30) provided in the top wall of the protective shell (2), the bottom end of the screw rod (3) is rotatably connected to the top end of the base (1), the bottom of the outer wall of the screw rod (3) is coaxially fixedly connected to a driven gear (40), the driven gear (40) is meshed with the driving gear (39), the top end of the screw rod (3) is threadedly connected to a sleeve (4), the top end of the sleeve (4) is fixedly connected to a hinge part, and the fixing plate (7) is fixedly connected to the top end of the hinge part.

8. A writing assistive device for Parkinson's disease patients according to claim 7, characterized in that: The hinged portion comprises a hinge block (24), the hinge block (24) is fixedly connected to the top end of the sleeve (4), the top ends of two opposite side walls of the hinge block (24) are respectively fixedly connected with hinge shafts (25), the two hinge shafts (25) are rotatably connected together with the bottom ends of the hinge seats (26), and the top end of the hinge seats (26) is fixedly connected to the bottom end of the fixed plate (7).

9. A writing assistive device for Parkinson's disease patients according to claim 7, characterized in that: The thread rotation directions of the two screw rods (3) in each group of the supporting mechanism are opposite.

10. A writing assistive device for Parkinson's disease patients according to claim 1, characterized in that: The top end of the fixed plate (7) is fixedly connected to a limit frame (8), the writing board (9) is slidably arranged in the limit frame (8), and a toggle block (10) is fixedly connected to a side wall of the writing board (9).

Images