Intelligent restraint chair for restraining restless psychiatric patient

Abstract

The invention discloses an intelligent restraint chair for restraining a dysphoria patient, and relates to the technical field of medical instruments.The intelligent restraint chair comprises a base assembly, a thigh restraint assembly is fixedly installed on one side of the base assembly, a backrest assembly is rotatably installed on the side, away from the thigh restraint assembly, of the base assembly, and a leg supporting assembly is rotatably installed on the thigh restraint assembly; two shank restraining assemblies are symmetrically and fixedly installed below the side, away from the base assembly, of the leg supporting assembly, two arm supporting assemblies are symmetrically and slidably installed on the two sides of the backrest assembly, and chest restraining assemblies are hinged to the upper end faces, facing the big arms, of the arm supporting assemblies. A forearm restraining assembly is slidably mounted on the end face, facing the forearm, of the arm supporting assembly; the size of constraining force on a patient can be adjusted and the shape of the constraining chair can be changed through remote control of a doctor, the backrest can be gradually adjusted to be in a horizontal lying state from a sitting posture, and the requirement for a rest or treatment body position is met.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an intelligent restraint chair for patients with agitated psychosis. Background Technology

[0002] Mania, in the Chinese Classification and Diagnostic Criteria of Mental Disorders - Third Edition (CCMD-3), is an independent unit within mood disorders, listed alongside bipolar disorder. Its main clinical phase is elevated or irritable mood, accompanied by increased energy, speech, and activity. In severe cases, it may be accompanied by psychotic symptoms such as hallucinations, delusions, and catatonic symptoms. A manic episode must last for more than a week, generally following an episodic course, with each episode followed by a period of remission with normal mental status. Most patients have a tendency to relapse. In clinical psychiatric diagnosis and nursing care, some patients with acute agitation, aggressive behavior, or self-harm tendencies often require restraint to limit their physical movement to ensure the safety of the patient, medical staff, and the surrounding environment, creating stable conditions for subsequent treatment interventions.

[0003] Currently, the traditional restraint tools widely used in clinical practice mainly include restraint straps, ordinary restraint beds, and simple restraint chairs. Traditional restraint methods generally lack precise force control and dynamic monitoring mechanisms. The tightness of restraint straps largely relies on the experience and judgment of medical staff; too loose a strap can easily lead to patient escape and cause danger, while too tight a strap can cause adverse events such as impaired limb blood circulation, pressure sores, or nerve damage. Related clinical data shows that approximately 30% of patients using traditional restraint straps experience varying degrees of complications such as limb numbness and bruising, and in severe cases, even life-threatening conditions such as compartment syndrome. Furthermore, existing restraint equipment often ignores the patient's physiological sensations. Ordinary restraint chairs mostly use rigid, fixed structures that cannot adapt to patients of different body types. Prolonged forced postures can easily cause muscle fatigue, joint stiffness, and other discomfort, further exacerbating the patient's agitation and resistance, hindering doctor-patient cooperation and recovery. At the same time, traditional restraint methods lack effective emotional soothing functions and cannot adaptively adjust to the patient's level of agitation, potentially leading to increased stress responses and making treatment more difficult.

[0004] In view of the above, this application provides an intelligent restraint chair for restricting agitated psychotic patients to solve the problems that existing restraint chairs are not suitable for patients of different body types and that prolonged restraint causes physical harm and injury to patients. Summary of the Invention

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention provides an intelligent restraint chair for patients with agitated psychosis. The chair includes a base assembly, a thigh restraint assembly fixedly mounted on one side of the base assembly, a backrest assembly rotatably mounted on the side of the base assembly away from the thigh restraint assembly, a leg support assembly rotatably mounted on the thigh restraint assembly, two sets of lower leg restraint assemblies symmetrically fixedly mounted on the lower side of the leg support assembly away from the base assembly, two sets of arm support assemblies symmetrically and slidably mounted on both sides of the backrest assembly, a chest restraint assembly hinged to the upper surface of the arm support assembly facing the upper arm, and a forearm restraint assembly slidably mounted on the end surface of the arm support assembly facing the forearm.

[0006] Preferably, the base assembly includes a support column, a base plate is fixedly installed on the upper end face of the support column, a protrusion is fixed on the upper end face of the base plate, and a plurality of horizontally and vertically interconnected movable blocks are arranged on the upper end face of the base plate. The plurality of movable blocks and the protrusion are arranged in a rectangular array. A first electric push rod is installed between the protrusion and the surface of the adjacent movable block. A first electric push rod is installed between the surfaces of the adjacent movable blocks. A second U-shaped plate is symmetrically fixedly installed on two movable blocks close to the two arm support assemblies. A first U-shaped plate is arranged at the center of the two second U-shaped plates. The first U-shaped plate is fixedly installed on one of the adjacent movable blocks. A first limiting block is fixedly installed on the upper end face inside the first U-shaped plate. A backrest rotation motor is fixedly installed on the lower end face inside the first U-shaped plate. A first motor wheel is fixedly installed at the output end of the backrest rotation motor.

[0007] Preferably, the thigh restraint assembly includes a thigh restraint frame fixedly installed with the base assembly. A second limiting block is fixedly installed at the center of the lower end face of the thigh restraint frame. A magnetic buckle restraint strap is fixedly connected to one side of the second limiting block. Two motor placement cavities are symmetrically opened on both sides of the thigh restraint frame. A second electric push rod is provided on the lower end face of each motor placement cavity. A limiting plate is fixedly connected to the output end of the second electric push rod. An L-shaped pressure rod is rotatably connected to the limiting plate. The L-shaped pressure rod passes through the motor placement cavity. A second motor is installed in each motor placement cavity. A second motor wheel is fixedly installed at the output end of each second motor. A first gear is slidably installed on the L-shaped pressure rod. The first gear meshes with the second motor wheel. The first gear rotates on the bottom surface of the motor placement cavity. A leg rotation motor is fixedly installed in each motor placement cavity. The drive shaft of the leg rotation motor passes through the motor placement cavity and faces the second limiting block. The drive shaft is connected to the leg support assembly.

[0008] Preferably, the leg support assembly includes a first rotating shaft rotatably mounted to the second limiting block, the drive shaft having groove fits with both ends of the first rotating shaft, a U-shaped frame fixedly mounted at the center of the first rotating shaft, first calf support frames slidably mounted on both sides of the first rotating shaft, a third electric push rod mounted on both sides of the U-shaped frame and the bottom, the telescopic end of the third electric push rod being fixedly connected to the first calf support frame, a second calf support frame slidably mounted below the first calf support frame, and a fourth electric push rod mounted between the first calf support frame and the second calf support frame.

[0009] Preferably, the lower leg restraint assembly includes a lower leg restraint frame fixedly installed on the lower leg side of the second lower leg support frame. Multiple sets of first airbags in a circumferential array are fixed on the inner arc surface of the lower leg restraint frame. An arc-shaped restraint plate is slidably installed on the lower leg restraint frame. A first ring tooth is provided on the outer arc surface of the arc-shaped restraint plate. A first motor housing is fixedly installed on one side of the lower leg restraint frame. A lower leg restraint motor is fixedly installed in the first motor housing. A fourth motor wheel is fixedly connected to the output end of the lower leg restraint motor. The fourth motor wheel meshes with the first ring tooth.

[0010] Preferably, the backrest assembly includes a second rotating shaft rotatably mounted to the first limiting block, the backrest is fixedly mounted on the second rotating shaft, a second gear is fixedly mounted on the second rotating shaft, the second gear meshes with the first motor wheel, a fifth electric push rod is fixedly mounted on the upper end face of the backrest, a T-shaped block is fixedly connected to the output end of the fifth electric push rod, and a headrest and a neck pillow are fixedly mounted on the upper end face of the T-shaped block.

[0011] Preferably, any one set of the arm support components includes a first arm support frame that slides with the T-shaped block. A hinge block and a rotation limit block are fixedly installed at intervals on the upper end face of the first arm support frame. A hinge shaft is fixedly installed on the hinge block facing the rotation limit block. A key shaft coaxial with the hinge shaft is slidably installed on the rotation limit block. A helical drive shaft is rotatably disposed on the upper end face of the first arm support frame. One end of the helical drive shaft has a rotating handle. The helical drive shaft and the key shaft are helically driven together. A second arm support frame is slidably installed on the lower end face of the first arm support frame. A sixth electric push rod is fixedly installed on the lower end face of the first arm support frame. The output end of the sixth electric push rod is fixedly connected to the second arm support frame. The second upper arm support frame has an arm rotation motor fixedly installed inside, facing the backrest assembly. The output shaft of the arm rotation motor is fixedly connected to a fifth motor wheel near the arm rotation motor. The output shaft extends out of the second upper arm support frame, and a limit constraint plate is fixedly connected to the end face of the output shaft. The limit constraint plate slides within a second U-shaped plate. A forearm support frame is hinged to the lower end of the second upper arm support frame. A third gear is fixedly installed on the hinge shaft of the forearm support frame. The third gear meshes with the fifth motor wheel. A second slide rail is provided on the upper surface of the forearm support frame. An eighth electric push rod is provided below the second slide rail near the third gear. The output end of the eighth electric push rod is fixedly connected to the forearm constraint assembly.

[0012] Preferably, the forearm constraint assembly includes an operating frame fixedly connected to the output end of an eighth electric actuator. A helical shaft is rotatably mounted on one side of the operating frame. A fourth gear is fixedly connected to one end of the helical shaft within the operating frame. A spring toothed plate is installed within the operating frame, meshing with the fourth gear. Two spring blocks are symmetrically mounted on the side of the spring toothed plate away from the fourth gear. The spring blocks and the operating frame are elastically connected by springs. A hinged lever is hinged within the operating frame, located between the two spring blocks. A lever ball head is slidably mounted on the upper end of the hinged lever, and the hinged lever and the lever ball head are elastically connected by springs. The two ends of the helical shaft are threads with different helical directions. A sector tooth is fixed in the middle of the threads at both ends of the helical shaft. Two sets of first limiting sliders located on both sides of the sector tooth are rotatably mounted on the helical shaft. A first forearm constraint frame is rotatably mounted on the arc surface of the two sets of first limiting sliders. A second ring is provided on the outer arc surface of the first forearm constraint frame. The first forearm restraint frame has a fan-shaped tooth that meshes with a second ring tooth. A second motor housing is fixedly installed on the side of the first forearm restraint frame, and an arm restraint motor is fixedly installed inside the second motor housing. A sixth motor wheel is fixedly connected to the output end of the arm restraint motor. Multiple sets of second forearm restraint frames are symmetrically and slidably installed at both ends of the first forearm restraint frame. A second limiting slider is rotatably installed on the outer arc surface of the second forearm restraint frame. The second limiting slider is helically and slidably engaged with the helical shaft. A first forearm arc-shaped restraint plate is rotatably installed on the first forearm restraint frame. A third ring tooth is opened on the outer arc surface of the first forearm arc-shaped restraint plate. The third ring tooth meshes with the sixth motor wheel. Multiple sets of second forearm arc-shaped restraint plates are symmetrically and slidably installed on both sides of the first forearm arc-shaped restraint plate. Both the second forearm arc-shaped restraint plate and the second forearm restraint frame are rotatably installed. A second airbag is installed on the arc surface of each of the second forearm restraint frames. The two ends of the second airbag are respectively connected to the second forearm restraint frame and the second forearm arc-shaped restraint plate.

[0013] Preferably, the chest restraint assembly includes chest restraint hinge rods that are hinged to two hinge blocks respectively. The holes where the chest restraint hinge rods are hinged to the hinge blocks are provided with a circumferential array of keyways. The parts of the chest restraint hinge rods that contact the patient are covered with rubber pads. Limiting slides are provided on the opposite end faces of the two chest restraint hinge rods. A connecting shaft is installed between the two limiting slides.

[0014] Preferably, the thigh restraint assembly, calf restraint assembly, and forearm restraint assembly can all be remotely operated, and the base assembly, backrest assembly, and human body contact points are all provided with pads.

[0015] The beneficial effects of the above technical solution are as follows: 1. This invention adjusts the support range by adjusting the position of the moving block through the electric push rod of the base; the thigh restraint frame adjusts the tension of the pressure rod through the motor and push rod; the leg support component can extend and retract to adjust the leg length; the arm support component adjusts the length through the push rod; the forearm restraint frame adapts to different arm circumferences through the spiral shaft and arc plate; and the chest restraint component adapts to chest size through the spring and ratchet rack, thus comprehensively meeting the needs of diverse body types. 2. The present invention uses the gear transmission of the backrest rotation motor of the base to drive the second rotating shaft of the backrest assembly to rotate, thereby adjusting the backrest angle. The electric push rod of the backrest pushes the headrest and neck pillow to move and assist in the support, so that the backrest can be gradually adjusted from a sitting position to a horizontal lying position to meet the needs of rest or treatment. 3. In this invention, the patient moves a rocker arm (hinged rocker arm and rocker arm ball head) to drive the two ends of the spiral shaft to rotate in different directions. Through the spiral transmission, the two sets of restraint devices (second forearm restraint frame and arc structure) move relative to each other or towards each other. During the movement, the force on the forearm of one restraint device increases and the force on the other side decreases. At the same time, the force point of the forearm is dynamically changed, so as to achieve precise adjustment of the restraint force and the force position. 4. In this invention, the patient moves a rocker arm (hinged rocker arm and rocker arm ball head) to drive the spiral shaft to rotate. The fan-shaped teeth in the middle of the spiral shaft mesh with the second ring teeth on the outer arc surface of the first forearm restraint frame. During the rotation of the spiral shaft, the first forearm restraint frame and the connected restraint device are driven to rotate relative to the forearm through gear transmission, so that the restraint device forms a kneading action while restraining the forearm, thereby achieving a dynamic kneading effect on the patient's arm. 5. In this invention, the limiting restraint plate of the arm support component slides within the second U-shaped plate to complete the device. When the device is a seat, the limiting restraint plate is in a position suitable for the sitting posture and does not affect the patient's normal use. When switching to the reclining chair state, the limiting restraint plate slides with the component to the corresponding position of the waist and cooperates with the second U-shaped plate to limit the waist, prevent the patient from agitating and shifting, and ensure the safety of lying restraint. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is an exploded view of the base assembly; Figure 3 for Figure 2 A partial schematic diagram; Figure 4 A partial sectional view of the thigh constraint component; Figure 5 An exploded view of the leg support components; Figure 6 A sectional view of the lower leg constraint component; Figure 7 This is a partial sectional view of the backrest assembly; Figure 8An exploded view of the arm support assembly; Figure 9 for Figure 8 Partial sectional view; Figure 10 An exploded view of the chest restraint assembly; Figure 11 This is a schematic diagram of the forearm constraint assembly; Figure 12 This is a partial sectional view of the forearm constraint assembly; Figure 13 This is a partially exploded view of the driving section of the forearm constraint assembly; Figure 14 This is a partially exploded view of the constraint portion of the forearm constraint assembly. Figure 15 for Figure 14 Sectional view at point AA; Figure 16 This is an exploded view of the constraint portion of the forearm constraint assembly. Figure 17 for Figure 14 A partial sectional view; Figure 18 This is a schematic diagram of the constraint state of the constrained chair; Figure 19 This is a diagram illustrating how to lay the chair flat to constrain its position.

[0017] Reference numerals: 1. Base assembly; 2. Thigh restraint assembly; 3. Leg support assembly; 4. Lower leg restraint assembly; 5. Backrest assembly; 6. Arm support assembly; 7. Chest restraint assembly; 8. Forearm restraint assembly; 11. Support column; 12. Base plate; 13. Protrusion; 14. First electric push rod; 15. Moving block; 16. First U-shaped plate; 17. Second U-shaped plate; 18. First motor wheel; 19. First limiting block; 21. Thigh restraint frame; 22. L-shaped pressure rod; 23. Motor placement cavity; 24. Second motor wheel; 25. First gear; 26. Second electric push rod; 27. Limiting plate; 28. Drive shaft; 29. ​​Second limiting block; 210. Second motor; 211. Magnetic buckle restraint belt; 31. First rotating shaft; 32. U-shaped frame; 33. Third electric push rod; 34. First calf support frame; 35. Second calf support frame; 36. Fourth electric push rod; 41. Calf restraint frame; 42. First airbag; 43. Arc-shaped restraint plate; 44. Fourth motor wheel; 45. First ring gear; 46. First motor housing; 51. Second rotating shaft; 52. Second gear; 53. Backrest; 54. Fifth electric push rod; 55. T-shaped block; 56. Square hole; 57. Headrest; 58. Neck pillow; 61. First upper arm support frame; 62. Hinge block; 63. Sixth electric push rod; 64. Rotation limit block; 65. Key shaft; 66. Screw drive shaft; 67. Second upper arm support frame; 68. Limit constraint plate; 69. Fifth motor wheel; 610. Forearm support frame; 611. Eighth electric push rod; 612. Third gear; 613. Second slide rail; 614. Hinge shaft; 615. Output shaft; 71. Chest constraint hinge rod; 72. Rubber pad; 73. Limit slide rail; 74. Connecting shaft; 75. Keyway; 81. Operating frame; 82. Screw Shaft; 83, Fourth Gear; 84, Spring Tooth Plate; 85, Hinge Lever; 86, Lever Ball Head; 87, Sector Tooth; 88, First Limiting Slider; 881, First Forearm Constraint Frame; 882, Second Forearm Constraint Frame; 883, Arc Plate Limiting Block; 884, Second Airbag; 885, Second Limiting Slider; 886, First Synchronizing Rod; 887, Second Ring Gear; 888, Second Motor Box; 889, Sixth Motor Wheel; 89, First Forearm Arc Constraint Plate; 891, Second Synchronizing Rod; 892, Third Ring Gear; 893, Second Forearm Arc Constraint Plate; 894, Third Slide Rail. Detailed Implementation

[0018] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 19 As will be clearly shown in the detailed description of the embodiments, the structural contents mentioned in the following embodiments are all with reference to the accompanying drawings.

[0019] Example 1, as Figure 1 , Figure 14 and Figure 15As shown, an intelligent restraint chair for patients with agitated psychosis includes a base assembly 1, which serves as the basic support structure for the entire device. A thigh restraint assembly 2 is bolted to one side of the base assembly 1 to limit the patient's thigh. A backrest assembly 5 is rotatably mounted on the side of the base assembly 1 away from the thigh restraint assembly 2 via a rotating shaft, allowing the backrest angle to be adjusted as needed. A leg support assembly 3 is rotatably mounted at the end of the thigh restraint assembly 2 via a rotating structure to support the patient's lower leg. Two sets of lower leg restraint assemblies 4 are symmetrically fixed and welded to the lower side of the leg support assembly 3 away from the base assembly 1 to restrain the lower leg. Two sets of arm support assemblies 6 are symmetrically slidably mounted on both sides of the backrest assembly 5 via slide rails to accommodate patients with different shoulder widths. A chest restraint assembly 7 is hinged to the upper end of the arm support assembly 6 via a hinge shaft to restrain the patient's chest. A forearm restraint assembly 8 is slidably mounted on the upper end of the arm support assembly 6 via a slide rail to limit the forearm.

[0020] Specifically, when using the device, the patient sits on the base assembly 1, with their thighs placed inside the thigh restraint assembly 2, their calves placed on the leg support assembly 3 and secured by the calf restraint assembly 4, their back resting on the backrest assembly 5, their arms placed on the arm support assembly 6 and secured by the forearm restraint assembly 8, and their chest limited by the chest restraint assembly 7. The patient is restrained through the coordinated action of the various components. The backrest angle can also be adjusted, allowing the backrest to be gradually adjusted from a sitting position to a horizontal lying position to meet the needs of rest or treatment.

[0021] Example 2, as Figure 2-3As shown, an intelligent restraint chair for agitated psychotic patients includes a support column 11 made of stainless steel, with its lower end fixed to the ground by expansion bolts. A base plate 12, a rectangular steel plate, is welded to the upper surface of the support column 11. A protrusion 13, also square in structure, is welded to the upper surface of the base plate 12 and is in contact with the thigh restraint assembly 2. Multiple movable blocks 15 are horizontally and vertically interconnected on the upper surface of the base plate 12, forming a square and linearly arrayed arrangement with the protrusion 13. A first electric push mechanism is bolted between each protrusion 13 and adjacent movable blocks 15, and between adjacent movable blocks 15. The lever 14, through the extension and retraction of the first electric push rod 14, drives the sliding block 15 to slide, adjusting the support range. Two second U-shaped plates 17 are symmetrically fixedly installed on the two moving blocks 15 close to the two arm support components 6 by welding. A first U-shaped plate 16 is set at the center of the two second U-shaped plates 17. The first U-shaped plate 16 and the moving block 15 close to it are fixedly installed by bolts. A first limiting block 19 is fixedly installed on the upper inner surface of the first U-shaped plate 16 by bolts to limit the axial movement of the backrest component 5. A backrest rotation motor is fixedly installed on the lower inner surface of the first U-shaped plate 16 by bolts. The output end of the backrest rotation motor is fixedly connected to the first motor wheel 18 by a key.

[0022] Specifically, during use, by controlling the extension and retraction of the first electric push rod 14, the moving block 15 is driven to slide on the base plate 12, adjusting the width and length of the base support to accommodate patients of different body types. When the backrest rotation motor is working, it drives the first motor wheel 18 to rotate, providing power for the angle adjustment of the backrest assembly 5.

[0023] Example 3, as Figure 4As shown, an intelligent restraint chair for agitated psychotic patients includes a thigh restraint frame 21, which is made of aluminum alloy and is fixedly installed to the base plate 12 of the base assembly 1 by bolts. A second limiting block 29 is fixedly installed at the center of the lower end face of the thigh restraint frame 21 by welding to limit the axial movement of the leg support assembly 3. A magnetic buckle restraint strap 211 is fixedly connected to one side of the second limiting block 29 for connecting the chest restraint assembly 7. Two motor placement cavities 23 are symmetrically opened on both sides of the thigh restraint frame 21 to provide installation space for internal components. A second electric push rod 26 is bolted to the lower end face of each motor placement cavity 23. The output end of the second electric push rod 26 is fixedly connected to a limiting plate 27 by bolts. The L-shaped pressure rod 22 is rotatably connected to the motor placement cavity 23. The L-shaped pressure rod 22 passes through the motor placement cavity 23 and its end is used to press the patient's thigh. The L-shaped pressure rod 22 is slidably installed with a first gear 25 in the motor placement cavity 23 via a slide rail. The second motor 210 is installed in the motor placement cavity 23 by bolts. The output end of the second motor 210 is fixedly installed with a second motor wheel 24 via a key connection. The first gear 25 meshes with the second motor wheel 24. The positions of the first gear 25 and the second motor wheel 24 are fixed in the motor placement cavity 23. The leg rotation motor is fixedly installed in the motor placement cavity 23 by bolts. The drive shaft 28 of the leg rotation motor passes out of the motor placement cavity 23 and faces the second limit block 29. The drive shaft 28 is connected to the leg support assembly 3 via a coupling.

[0024] Specifically, during operation, the second motor 210 drives the second motor wheel 24 to rotate, which in turn drives the first gear 25 to rotate through gear meshing, thereby driving the L-shaped pressure rod 22 to rotate. In conjunction with the extension and retraction of the second electric push rod 26, the L-shaped pressure rod 22 is driven to move up and down to adjust the pressing pressure, thereby constraining the thigh. When the leg rotation motor is working, it drives the leg support assembly 3 to rotate through the drive shaft 28, thereby adjusting the leg support angle.

[0025] Example 4, as Figure 5 As shown, an intelligent restraint chair for restricting agitated psychotic patients includes a first rotating shaft 31, which is rotatably mounted to a second limiting block 29 of a thigh restraint assembly 2 via bearings. A drive shaft 28 of a leg rotation motor is connected to the first rotating shaft 31 via a coupling. A U-shaped frame 32 is fixedly mounted at the center of the first rotating shaft 31 by welding. First lower leg support frames 34 are slidably mounted on both sides of the first rotating shaft 31 via slide rails. A third electric push rod 33 is bolted between the U-shaped frame 32 and the first lower leg support frames 34 to adjust the distance between the two first lower leg support frames 34. A second lower leg support frame 35 is slidably mounted below the first lower leg support frame 34 via a slide rail. A fourth electric push rod 36 is bolted between the first lower leg support frame 34 and the second lower leg support frame 35 to adjust the length of the lower leg support.

[0026] Specifically, during use, the third electric push rod 33 can extend and retract to adjust the left and right distance of the first calf support frame 34 to adapt to different calf widths. The fourth electric push rod 36 extends and retracts to drive the second calf support frame 35 to slide, adjust the support length, adapt to patients with different leg lengths, and improve restraint comfort.

[0027] Example 5, as Figure 6 As shown, an intelligent restraint chair for patients with agitated psychosis includes a leg restraint frame 41, which is fixedly installed to the second leg support frame 35 of the leg support assembly 3 by bolts. Multiple sets of first airbags 42 in a circular array are fixed on the inner arc surface of the leg restraint frame 41. The first airbags 42 are connected to an air pump and the inflation volume can be adjusted. An arc-shaped restraint plate 43 is slidably installed on the leg restraint frame 41 through a slide rail. The inner side of the arc-shaped restraint plate 43 is covered with cotton webbing, and the surface in contact with the skin is a lamb wool pad. The outer arc surface of the arc-shaped restraint plate 43 is provided with a first ring tooth 45 by welding. A first motor box 46 is fixedly installed on one side of the leg restraint frame 41 by bolts. A leg restraint motor is fixedly installed in the first motor box 46 by bolts. The output end of the leg restraint motor is fixedly connected to a fourth motor wheel 44 by a key connection. The fourth motor wheel 44 meshes with the first ring tooth 45.

[0028] Specifically, during restraint, the lower leg restraint motor drives the fourth motor wheel 44 to rotate, which drives the arc-shaped restraint plate 43 to close through the first ring tooth 45, clamping the lower leg. The first airbag 42 inflates and fills the gap to avoid hard contact that could cause pressure sores. At the same time, the restraint force can be adjusted by deflating the airbag.

[0029] Example 6, as Figure 7 As shown, an intelligent restraint chair for patients with agitated psychosis includes a second rotating shaft 51, which is rotatably mounted to a first limiting block 19 of a base assembly 1. A second gear 52 is fixedly mounted on the rotating shaft of the second rotating shaft 51 via a key connection. The second gear 52 meshes with a first motor wheel 18 of the base assembly. A backrest 53 is fixedly mounted on both ends of the second rotating shaft 51 by welding. The surface of the backrest 53 is covered with a sponge pad. A fifth electric push rod 54 is fixedly mounted on the upper end of the backrest 53 by bolts. A T-shaped block 55 is fixedly connected to the output end of the fifth electric push rod 54 by bolts. A through square hole 56 is opened on the side of the T-shaped block 55. A headrest 57 and a neck pillow 58 are fixedly mounted on the upper end of the T-shaped block 55 by bolts. Both the headrest 57 and the neck pillow 58 are made of memory foam material and conform to the human body contour.

[0030] Specifically, when adjusting the backrest angle, the backrest rotation motor of the base assembly drives the first motor wheel 18 to rotate, which in turn drives the second rotating shaft 51 to rotate through gear meshing, thereby achieving multi-angle adjustment of the backrest 53 and controlling the extension and retraction of the fifth electric push rod 54. This allows for adjustment of the height and front-back position of the headrest 57 and neck pillow 58 to suit the neck support needs of different patients.

[0031] Example 7, as Figure 8 As shown, an intelligent restraint chair for patients with agitated psychosis includes two sets of arm support assemblies 6. Each set of arm support assemblies 6 includes a first upper arm support frame 61. The first upper arm support frame 61 slides with a T-shaped block 55 of the backrest assembly through a square hole 56, and its position can be adjusted in the horizontal direction. A hinge block 62 and a rotation limit block 64 are fixedly installed on the upper end face of the first upper arm support frame 61 by welding. The hinge block 62 is used to connect the chest restraint assembly 7, and the rotation limit block 64 is not hinged to the hinge block 62. A key shaft 65 is slidably mounted within a rotation limit block 64, with a screw drive shaft 66 threaded onto one end of the key shaft 65. A rotating handle is located at one end of the screw drive shaft 66. The screw drive shaft 66 is rotatably mounted on the upper surface of the first upper arm support frame 61. Rotating the screw drive shaft 66 allows the key shaft 65 to slide within the rotation limit block 64 for fixing the chest restraint assembly 7. A second upper arm support frame 67 is slidably mounted on the lower surface of the first upper arm support frame 61 via a slide rail. A sixth electric push rod 63 is bolted to the second boom support frame 67 for adjusting the boom support length. An arm rotation motor facing the backrest assembly 5 is bolted and fixedly installed inside the second boom support frame 67. The output shaft 615 of the arm rotation motor is fixedly connected to a fifth motor wheel 69 via a key. The output shaft 615 of the fifth motor wheel 69 extends out of the second boom support frame 67, and its end face is bolted to a limit constraint plate 68. The limit constraint plate 68 is located on the second U-shaped plate 1 of the base assembly. The lower end of the second boom support frame 67 is hinged to the forearm support frame 610 via a hinge shaft. The hinge shaft of the forearm support frame 610 is fixedly installed with a third gear 612 via a key connection. The third gear 612 meshes with the fifth motor wheel 69. The upper end face of the forearm support frame 610 is provided with a second slide rail 613. The eighth electric push rod 611 is bolted to the position below the second slide rail 613 near the third gear 612. The output end of the eighth electric push rod 611 is fixedly connected to the forearm constraint assembly 8.

[0032] Specifically, during use, the sixth electric push rod 63 extends and retracts to adjust the total length of the first and second upper arm support frames to adapt to different upper arm lengths. The arm rotation motor drives the fifth motor wheel 69 to rotate, which in turn drives the forearm support frame 610 to rotate via the third gear 612, adjusting the forearm angle. The eighth electric push rod 611 extends and retracts to drive the forearm restraint assembly 8 to slide along the second slide rail 613, adjusting the forearm restraint position. The limiting restraint plate 68 slides within the second U-shaped plate 17, adjusting the position of the arm support assembly 6 according to the size of the base, to adapt to patients of different body types.

[0033] Example 8, as Figure 10-13As shown, an intelligent restraint chair for patients with agitated psychosis includes an operating frame 81. The operating frame 81 is fixedly connected to the output end of the eighth electric push rod 611 of the arm support assembly by bolts. A helical shaft 82 is rotatably mounted on one side of the operating frame 81 via a bearing. One end of the helical shaft 82 inside the operating frame 81 is fixedly connected to a fourth gear 83 via a key. A spring toothed plate 84 is mounted inside the operating frame 81 via a slide rail. The spring toothed plate 84 meshes with the fourth gear 83. Two symmetrically mounted spring blocks 841 are welded to the side of the spring toothed plate 84 away from the fourth gear 83. Springs are connected between the spring blocks 841 and the operating frame 81. A hinge lever 85 is hinged inside the operating frame 81, located between the two spring blocks 841. A lever ball head 86 is slidably mounted on the end via a slide rail. A spring connects the hinged lever 85 and the lever ball head 86, ensuring the lever ball head remains in contact with the patient's palm for easy operation. The two ends of the spiral shaft 82 have threads with different directions of rotation. A sector tooth 87 is welded to the middle of the threads at both ends of the spiral shaft 82. Two sets of first limiting sliders 88 located on either side of the sector tooth 87 are rotatably mounted on the spiral shaft 82 via bearings. A first forearm restraint frame 881 is rotatably mounted on the arc surface of the two sets of first limiting sliders 88. A second ring tooth 887 is welded to the outer arc surface of the first forearm restraint frame 881, meshing with the sector tooth 87. A second motor housing 888 is bolted to the side of the first forearm restraint frame 881. An arm restraint motor is fixedly installed inside the first forearm restraint frame 881 by bolts. The output end of the arm restraint motor is fixedly connected to a sixth motor wheel 889 via a key connection. First synchronous rods 886 are symmetrically welded to both ends of the first forearm restraint frame 881. Multiple sets of second forearm restraint frames 882, which slide on the first synchronous rods 886, are symmetrically installed at both ends of the first forearm restraint frame 881. Arc plate limit blocks 883 are bolted to the side of the second forearm restraint frame 882. A second limit slider 885 is rotatably installed on the outer arc surface of the second forearm restraint frame 882 via bearings. The second limit slider 885 is helically driven by the helical shaft 82. A first forearm arc-shaped restraint plate 89 is slidably installed on the first forearm restraint frame 881 via a slide rail. A first forearm arc-shaped restraint plate 89 is welded onto the outer arc surface of the first forearm arc-shaped restraint plate 89. The third ring tooth 892 meshes with the sixth motor wheel 889. Second synchronous rods 891 are symmetrically welded to both sides of the first forearm arc-shaped constraint plate 89. Multiple sets of second forearm arc-shaped constraint plates 893, which slide on the second synchronous rods 891, are symmetrically installed on both sides of the first forearm arc-shaped constraint plate 89. A third slide rail 894 is provided on the outer arc surface of the second forearm arc-shaped constraint plate 893. Both the second forearm arc-shaped constraint plate 893 and the second forearm constraint frame 882 are rotatably mounted. The arc plate limiting block 883 slides within the third slide rail 894, restricting the axial movement of the second forearm arc-shaped constraint plate 893 and the second forearm constraint frame 882. Cotton webbing is attached to the inner surfaces of the first and second forearm arc-shaped constraint plates 89 and 893, and the skin-contacting surface is a lambskin pad.The curved surfaces of the second forearm restraint frame 882 are each fitted with a second airbag 884 using adhesive. The two ends of the second airbag 884 are respectively connected to the second forearm restraint frame 882 and the second forearm curved restraint plate 893.

[0034] Specifically, after the patient's struggling frequency decreases, the patient is guided to turn the rocker arm ball head 86, the hinged lever 85 pushes the spring block 841, and drives the spring tooth plate 84 to move. The fourth gear 83 drives the spiral shaft 82 to rotate, and the spiral shaft 82 drives the second limit slider 885 to move through the threaded transmission, so that the second forearm restraint frame 882 moves relative to or towards each other. During the movement, the force on the forearm of one restraint device increases and the force on the other side decreases, so as to achieve precise adjustment of the restraint force and the position of the force to adjust the tightness of the restraint. At the same time, the fan-shaped tooth 87 drives the first forearm restraint frame 881 to rotate through the second ring tooth 887, and cooperates with the second airbag 884 to realize the kneading action.

[0035] Example 9, as Figure 9 As shown, an intelligent restraint chair for patients with agitated psychosis includes two chest restraint hinge rods 71. The chest restraint hinge rods 71 ​​are hinged to the hinge block 62 of the arm support assembly via pins. The positions of the chest restraint hinge rods 71 ​​that contact the patient are covered with rubber pads 72. The two chest restraint hinge rods 71 ​​are connected by a connecting shaft 74, which slides within the limiting slide 73 of the chest restraint hinge rods 71. The positions of the chest restraint hinge rods 71 ​​that contact the patient are covered with rubber pads 72.

[0036] Specifically, during use, the chest restraint hinge rod 71 is rotated 90 degrees to position it in front of the patient's chest. The spiral drive shaft 66 is rotated to make the key shaft 65 slide within the rotation limit block 64 until the key shaft 65 is inserted into the hinge hole of the chest restraint hinge rod 71. The key shaft 65 cooperates with the key groove 75 in the hinge hole to fix the chest restraint assembly 7 and restrict its rotation. When the patient is relatively stable and does not need to use hand, foot and leg restraint, after the chest restraint assembly 7 is fixed, a magnetic buckle restraint strap 211 is fixedly connected to one side of the second limit block 29 to bind the chest restraint assembly. The magnetic buckle restraint strap 211 passes between the two legs to prevent the patient from leaving the restraint chair.

[0037] Example 10: A smart restraint chair for restricting agitated psychotic patients includes a thigh restraint component 2, a lower leg restraint component 4, and a forearm restraint component 8, all of which can be remotely operated. The base component 1, the backrest component 5, and the contact points with the human body are all provided with pads.

[0038] Specifically, the remote control function of this intelligent restraint chair is realized through a wireless communication module. Doctors can issue commands through the matching remote control terminal (such as a dedicated tablet computer or desktop control host) to adjust the restraint status of the thigh restraint component 2, the calf restraint component 4, and the forearm restraint component 8 in real time. In terms of padding, the upper surfaces of the moving block 15 and the protrusion 13 are covered with medical memory foam pads with a thickness of 3-5cm. The surface of the pads is covered with a removable antibacterial and breathable fabric (such as a blend of bamboo fiber and polyester fiber). This fabric has good sweat absorption and breathability, which can reduce the stuffiness caused by prolonged contact with the patient. The backrest 53 of the backrest component 5 is fitted with an arc-shaped memory foam pad. The curvature of the pad is adapted to the physiological curvature of the human spine, which can provide even support for the patient's back and avoid pressure sores caused by excessive local pressure.

[0039] Working principle: During use, multiple moving blocks 15 are driven by the first electric push rod 14 to slide on the base plate 12 according to the patient's body shape (such as hip width), adjusting the square support range formed by the moving blocks 15 and the protrusions 13 to flexibly adapt to the support area. At the same time, the second U-shaped plate 17 and the first U-shaped plate 16 on the moving blocks 15 drive the backrest assembly 5 and the arm support assembly 6 to move synchronously to adapt to people of different body shapes. The backrest assembly 5 drives the first motor wheel 18 to rotate through the backrest rotation motor, which drives the second rotating shaft 51 and the backrest 53 to rotate through gear meshing, realizing stepless adjustment of the backrest angle from sitting (90°) to lying down (0°) to meet the patient's rest or treatment position needs. The fifth electric push rod 54 at the upper end of the backrest pushes the T-shaped block 55 to move. The movement of the headrest 57 and neck pillow 58 adjusts their height to suit people of different heights and conforms to the neck curves of different patients, reducing neck muscle fatigue. The arm support component 6 adjusts the total length of the first upper arm support frame 61 and the second upper arm support frame 67 via the sixth electric push rod 63. The forearm restraint component 8 moves within the second slide rail 613 via the eighth electric push rod 611, adjusting its position to suit people with different arm lengths. The leg support component 3 drives the first rotating shaft 31 to rotate via the drive shaft 28 of the leg rotation motor, adjusting the leg support angle (such as knee flexion or extension). The third electric push rod 33 adjusts the distance between the two first lower leg support frames 34 to suit different lower leg widths. The fourth electric push rod 36... The second calf support frame 35 is slidable to adjust the support length to fit different leg lengths. After adjustment, the patient sits on the restraint chair, placing their calf into the calf restraint assembly 4. The calf restraint motor, through the engagement of the fourth motor wheel 44 and the first ring gear 45, drives the arc-shaped restraint plate 43 to rotate and fully wrap the calf. The first air bladder 42 on the inner arc surface inflates and fills the gap, completing the restraint of the patient's calf. By dynamically adjusting the inflation volume, pressure is buffered to avoid skin pressure sores or circulatory disorders caused by hard contact. The second motor 210 is activated to drive the second motor wheel 24 to rotate, which, through the engagement of the first gear 25, drives the L-shaped pressure rod 22 to rotate, positioning the L-shaped pressure rod 22 above the patient's thigh. At the same time, the second electric push rod 26 extends and retracts to adjust the limit. Positioning the plate 27 controls the pressure applied to the thigh by the L-shaped pressure rods 22. Two sets of symmetrical L-shaped pressure rods 22 restrain the patient's thighs. The chest restraint assembly 7 is linked to the arm support assembly 6 via the chest restraint hinge rod 71. After the patient sits down, the chest restraint hinge rod 71 rotates 90° to position itself in front of the patient's chest. The rotating helical drive shaft 66 causes the key shaft 65 to slide within the rotation limit block 64 until the key shaft 65 is inserted into the hinge hole of the chest restraint hinge rod 71. The key shaft 65 engages with the key groove 75 in the hinge hole to fix the chest restraint assembly 7, thus restraining the patient's chest. The patient's forearm is placed in the forearm restraint assembly 8. The forearm restraint motor engages with the third ring gear 892 via the sixth motor wheel 889.The first forearm arc-shaped restraint plate 89 and the second forearm arc-shaped restraint plate 893 are driven to rotate and fully wrap the forearm. The second airbag 884 on the inner arc surface is inflated to fill the gap, thus completing the restraint of the patient's forearm. After the patient's struggling frequency decreases, the patient is guided to turn the rocker arm ball head 86. The hinged lever 85 pushes the spring block 841, which drives the spring tooth plate 84 to move. The fourth gear 83 drives the spiral shaft 82 to rotate. The spiral shaft 82 drives the second limit slider 885 to move through the threaded transmission, so that the second forearm restraint frame 882 moves relative to or towards each other. During the movement, the force on the forearm of one side of the restraint device increases and the force on the other side decreases. The system allows for precise adjustment of the restraint force and position, adjusting the tightness of the restraint. Simultaneously, the sector tooth 87, through the second ring tooth 887, drives the first forearm restraint frame 881 to rotate, cooperating with the second airbag 884 to perform a kneading motion, reducing muscle stiffness caused by prolonged restraint. The limiting restraint plate 68 of the arm support component 6 slides within the second U-shaped plate 17: in a sitting position, the limiting restraint plate 68 is in a position suitable for the sitting posture, not affecting normal use; when switching to a lying position, the limiting restraint plate 68 adjusts with the component to the corresponding position at the waist, cooperating with the second U-shaped plate 17 to form a lumbar limit, preventing body displacement when the patient is agitated, and ensuring the safety of lying restraint.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent restraint chair for controlling agitated psychotic patients, characterized in that, The system includes a base assembly (1), a thigh restraint assembly (2) fixedly mounted on one side of the base assembly (1), a backrest assembly (5) rotatably mounted on the side of the base assembly (1) away from the thigh restraint assembly (2), a leg support assembly (3) rotatably mounted on the thigh restraint assembly (2), two sets of lower leg restraint assemblies (4) symmetrically fixedly mounted on the lower side of the leg support assembly (3) away from the base assembly (1), two sets of arm support assemblies (6) symmetrically slidably mounted on both sides of the backrest assembly (5), a chest restraint assembly (7) hinged to the upper end face of the arm support assembly (6) facing the upper arm, and a lower arm restraint assembly (8) slidably mounted on the end face of the arm support assembly (6) facing the lower arm.

2. The intelligent restraint chair for restricting agitated psychotic patients according to claim 1, characterized in that, The base assembly (1) includes a support column (11), a base plate (12) is fixedly mounted on the upper end face of the support column (11), a protrusion (13) is fixed on the upper end face of the base plate (12), and a plurality of horizontally and vertically interconnected movable blocks (15) are provided on the upper end face of the base plate (12). The plurality of movable blocks (15) and the protrusions (13) are arranged in a rectangular array. A first electric push rod (14) is installed between the protrusion (13) and the adjacent movable block (15). A first electric push rod (14) is installed between the adjacent movable block (15) and the adjacent movable block (15). 14) Two moving blocks (15) close to the two arm support components (6) are symmetrically fixedly installed with second U-shaped plates (17). A first U-shaped plate (16) is set at the center of the two second U-shaped plates (17). The first U-shaped plate (16) is fixedly installed with a moving block (15) close to it. A first limiting block (19) is fixedly installed on the upper inner surface of the first U-shaped plate (16). A backrest rotation motor is fixedly installed on the lower inner surface of the first U-shaped plate (16). A first motor wheel (18) is fixedly installed at the output end of the backrest rotation motor.

3. The intelligent restraint chair for restricting agitated psychotic patients according to claim 1, characterized in that, The thigh restraint assembly (2) includes a thigh restraint frame (21) fixedly installed with the base assembly (1). A second limiting block (29) is fixedly installed at the center of the lower end face of the thigh restraint frame (21). A magnetic buckle restraint strap (211) is fixedly connected to one side of the second limiting block (29). Two motor placement cavities (23) are symmetrically opened on both sides of the thigh restraint frame (21). A second electric push rod (26) is provided on the lower end face of each motor placement cavity (23). A limiting plate (27) is fixedly connected to the output end of the second electric push rod (26). An L-shaped pressure rod (22) is rotatably connected to the limiting plate (27). The L-shaped pressure rod (22) passes through the electric push rod. The motor placement cavity (23) is equipped with a second motor (210). The output end of the second motor (210) is fixedly equipped with a second motor wheel (24). The L-shaped pressure rod (22) is slidably equipped with a first gear (25). The first gear (25) meshes with the second motor wheel (24). The first gear (25) rotates on the bottom surface inside the motor placement cavity (23). The motor placement cavity (23) is fixedly equipped with a leg rotation motor. The drive shaft (28) of the leg rotation motor passes through the motor placement cavity (23) and faces the second limiting block (29). The drive shaft (28) is connected to the leg support assembly (3).

4. The intelligent restraint chair for restricting agitated psychotic patients according to claim 3, characterized in that, The leg support assembly (3) includes a first rotating shaft (31) rotatably mounted to the second limiting block (29). The drive shaft (28) is grooved to both ends of the first rotating shaft (31). A U-shaped frame (32) is fixedly mounted at the center of the first rotating shaft (31). A first lower leg support frame (34) is slidably mounted on both sides of the first rotating shaft (31). A third electric push rod (33) is mounted on both sides of the bottom of the U-shaped frame (32). The telescopic end of the third electric push rod (33) is fixedly connected to the first lower leg support frame (34). A second lower leg support frame (35) is slidably mounted below the first lower leg support frame (34). A fourth electric push rod (36) is installed between the first lower leg support frame (34) and the second lower leg support frame (35).

5. The intelligent restraint chair for restricting agitated psychotic patients according to claim 1, characterized in that, The lower leg restraint assembly (4) includes a lower leg restraint frame (41) fixedly installed on the lower leg side of the second lower leg support frame (35). Multiple sets of first airbags (42) in a circular array are fixed on the inner arc surface of the lower leg restraint frame (41). An arc-shaped restraint plate (43) is slidably installed on the lower leg restraint frame (41). A first ring tooth (45) is provided on the outer arc surface of the arc-shaped restraint plate (43). A first motor box (46) is fixedly installed on one side of the lower leg restraint frame (41). A lower leg restraint motor is fixedly installed in the first motor box (46). A fourth motor wheel (44) is fixedly connected to the output end of the lower leg restraint motor. The fourth motor wheel (44) meshes with the first ring tooth (45).

6. The intelligent restraint chair for restricting agitated psychotic patients according to claim 2, characterized in that, The backrest assembly (5) includes a second rotating shaft (51) rotatably mounted to the first limiting block (19). The backrest (53) is fixedly mounted on the second rotating shaft (51). A second gear (52) is fixedly mounted on the second rotating shaft (51). The second gear (52) meshes with the first motor wheel (18). A fifth electric push rod (54) is fixedly mounted on the upper end face of the backrest (53). A T-shaped block (55) is fixedly connected to the output end of the fifth electric push rod (54). A headrest (57) and a neck pillow (58) are fixedly mounted on the upper end face of the T-shaped block (55).

7. The intelligent restraint chair for restricting agitated psychotic patients according to claim 6, characterized in that, Any one of the arm support components (6) includes a first upper arm support frame (61) that slides with a T-shaped block (55). A hinge block (62) and a rotation limiting block (64) are fixedly installed at intervals on the upper end face of the first upper arm support frame (61). A hinge shaft (614) is fixedly installed on the hinge block (62) facing the rotation limiting block (64). A key shaft (65) coaxial with the hinge shaft (614) is slidably installed on the rotation limiting block (64). The upper end of the first upper arm support frame (61) A spiral drive shaft (66) is provided for rotation. One end of the spiral drive shaft (66) has a rotating handle. The spiral drive shaft (66) is screwed into a key shaft (65). A second boom support frame (67) is slidably mounted on the lower end face of the first boom support frame (61). A sixth electric push rod (63) is fixedly mounted on the lower end face of the first boom support frame (61). The output end of the sixth electric push rod (63) is fixedly connected to the second boom support frame (67). An arm rotation motor facing the backrest assembly (5) is fixedly mounted inside the second boom support frame (67). A fifth motor wheel (69) is fixedly connected to the output shaft (615) of the arm rotation motor near the arm rotation motor. The output shaft (615) extends out of the second boom support frame (67). A limit constraint plate (68) is fixedly connected to the end face of the output shaft (615). The limit constraint plate (68) is slidably engaged in the second U-shaped plate (17). The lower end of the second boom support frame (67) is hinged to a... Forearm support frame (610), the hinge shaft of the forearm support frame (610) is fixedly mounted with a third gear (612), the third gear (612) meshes with a fifth motor wheel (69), the upper end face of the forearm support frame (610) is provided with a second slide rail (613), the lower part of the second slide rail (613) is provided near the third gear (612) with an eighth electric push rod (611), the output end of the eighth electric push rod (611) is fixedly connected to the forearm constraint assembly (8).

8. The intelligent restraint chair for restricting agitated psychotic patients according to claim 7, characterized in that, The forearm restraint assembly (8) includes an operating frame (81) fixedly connected to the output end of an eighth electric push rod (611). A helical shaft (82) is rotatably mounted on one side of the operating frame (81). A fourth gear (83) is fixedly connected to one end of the helical shaft (82) inside the operating frame (81). A spring toothed plate (84) is installed inside the operating frame (81). The spring toothed plate (84) meshes with the fourth gear (83). Two spring blocks (841) are symmetrically installed on the side of the spring toothed plate (84) away from the fourth gear (83). The spring blocks (841) and the operating frame (81) are elastically connected by springs. A hinged lever is hinged inside the operating frame (81). 85), the hinge lever (85) is located between two spring blocks (841), the upper end of the hinge lever (85) is slidably mounted with a lever ball head (86), the hinge lever (85) and the lever ball head (86) are elastically connected by a spring, the two ends of the spiral shaft (82) are threads with different directions of rotation, the middle of the threads at both ends of the spiral shaft (82) is fixed with a sector tooth (87), the spiral shaft (82) is rotatably mounted with two sets of first limiting sliders (88) located on both sides of the sector tooth (87), the arc surface of the two sets of first limiting sliders (88) is rotatably mounted with a first forearm constraint frame (881), the outer arc surface of the first forearm constraint frame (881) is provided with a second Ring teeth (887), the sector teeth (87) mesh with the second ring teeth (887), a second motor box (888) is fixedly installed on the side of the first forearm restraint frame (881), an arm restraint motor is fixedly installed inside the second motor box (888), a sixth motor wheel (889) is fixedly connected to the output end of the arm restraint motor, multiple sets of second forearm restraint frames (882) are symmetrically slidably installed at both ends of the first forearm restraint frame (881), a second limiting slider (885) is rotatably installed on the outer arc surface of the second forearm restraint frame (882), the second limiting slider (885) is helically slidably engaged with the helical shaft (82), the first forearm restraint frame (881) A first forearm arc-shaped constraint plate (89) is rotatably installed. The outer arc surface of the first forearm arc-shaped constraint plate (89) is provided with a third ring tooth (892). The third ring tooth (892) meshes with the sixth motor wheel (889). Multiple sets of second forearm arc-shaped constraint plates (893) are symmetrically slidably installed on both sides of the first forearm arc-shaped constraint plate (89). The second forearm arc-shaped constraint plates (893) and the second forearm constraint frame (882) are rotatably installed. The arc surface of the second forearm constraint frame (882) is provided with a second airbag (884). The two ends of the second airbag (884) are respectively connected to the second forearm constraint frame (882) and the second forearm arc-shaped constraint plate (893).

9. The intelligent restraint chair for restricting agitated psychotic patients according to claim 7, characterized in that, The chest restraint assembly (7) includes a chest restraint hinge rod (71) that is hinged to two hinge blocks (62) respectively. The holes of the chest restraint hinge rod (71) that are hinged to the hinge blocks (62) are provided with four keyways (75) in a circumferential array. The parts of the chest restraint hinge rod (71) that come into contact with the patient are covered with rubber pads (72). The opposite end faces of the two chest restraint hinge rods (71) are provided with limit slides (73). A connecting shaft (74) is installed between the two limit slides (73).

10. A smart restraint chair for restricting agitated psychotic patients according to claims 1-9, characterized in that, The thigh restraint assembly (2), calf restraint assembly (4) and forearm restraint assembly (8) can all be remotely operated. The base assembly (1), backrest assembly (5) and human body contact positions are all provided with pads.

Images