Binding device for psychiatry department

Abstract

The invention discloses a psychiatry binding device, and relates to the technical field of medical auxiliary instruments, the psychiatry binding device comprises a bedstead, guide rods are symmetrically mounted on two sides of the bedstead, a plurality of binding belts are slidably sleeved on the outer circumferential surfaces of the guide rods, and a horizontally arranged support belt is arranged in the middle area of the bedstead; the two ends of the supporting belt are wound around the two symmetrically-arranged rollers correspondingly, and a supporting plate assembled in a sliding mode in the vertical direction is installed in the middle of the supporting belt. When the supporting plate moves downwards in the vertical direction, the two rollers rotate synchronously and relatively to unwind the supporting belt, so that the middle area of the supporting belt moves downwards; the binding degree is increased along with the downward moving distance of the supporting plate. By adjusting the position of the supporting belt and dynamically limiting the movement range of a patient, the restraint effect is improved, and the device has the advantages of being convenient to operate, high in safety, high in humanization and the like and can better meet the safety restraint requirement in clinical work of the psychiatry department.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and particularly to a restraint device for the psychiatric department. Background Art

[0002] In psychiatric clinical work, some patients may show strong emotional fluctuations and uncontrolled limb movements during the onset of the disease, and may even cause harm to themselves or the surrounding environment. To avoid accidents, it is usually necessary to impose appropriate protective restraints on the patients. Protective restraint means that when encountering particularly impulsive and extremely disorderly patients, attempts are made to communicate with them; if the communication is ineffective, according to the instructions of the attending physician, restraint devices are used to fix the patient's limbs on the bed to stop their impulsive behavior, and this measure plays an important role in psychiatric nursing.

[0003] Existing restraint devices usually fix the patient's limbs on the bed frame through restraint belts to limit their range of movement. However, such devices have the following deficiencies in actual use: 1. When the patient struggles, they may use the gap between the limbs and the bed frame for partial movement, resulting in a decrease in the restraint effect and the inability to completely control impulsive behavior; 2. The restraint belts remain in a tight state for a long time, which may cause excessive local pressure, leading to discomfort or even injury.

[0004] In view of the above problems, we propose a restraint device for the psychiatric department, which through structural optimization and function enhancement, while ensuring the safety of the patient, improves the restraint effect and comfort, and reduces the operation burden of nursing staff. Summary of the Invention

[0005] In order to solve the above technical problems existing in the prior art, the present invention provides a restraint device for the psychiatric department.

[0006] To achieve the above object, the present invention provides the following technical solution: A restraint device for the psychiatric department, including a bed frame, guide rods are symmetrically installed on both sides of the bed frame, and a plurality of restraint belts are slidably sleeved on the outer circumferential surface of the guide rods. A horizontally arranged support belt is provided in the middle area of the bed frame. Both ends of the support belt are respectively wound around two symmetrically arranged rollers. A support plate is installed in the middle of the support belt and is slidably assembled in the vertical direction; when the support plate moves downward in the vertical direction, the two rollers rotate synchronously and relatively to unwind the support belt, so that the middle area of the support belt moves downward; the degree of restraint increases with the downward displacement distance of the support plate.

[0007] Preferably, when the support plate moves downward in the vertical direction, the two rollers move synchronously in a straight line approaching each other.

[0008] Preferably, vertical plates are provided on both the front and rear sides of the support belt. The vertical plates are installed inside the bed frame. Vertical chutes arranged vertically are provided at positions corresponding to the support plates in the support belt. Horizontal chutes arranged horizontally are provided at positions corresponding to the rollers in the vertical plates. Rotating shafts are installed at the centers of both ends of the roller. The rotating shafts movably penetrate through the horizontal chutes and are rotatably connected to first connecting rods. A second connecting rod arranged horizontally is rotatably connected between two first connecting rods on the same side. The second connecting rod is fixedly connected to the support plate. The support plate is slidably assembled in the vertical chute. A hydraulic cylinder is installed at the bottom of the inner cavity of the support belt. The piston rod of the hydraulic cylinder is fixedly connected to the support plate. A gear is fixedly sleeved on the outer circumferential surface of the rotating shaft. The gear is meshed with a rack. The rack is fixedly installed on the vertical plate and is arranged parallel to the horizontal chute.

[0009] Preferably, waist limiting blocks are symmetrically arranged on both the left and right sides of the support plate, and the waist limiting blocks are located directly below the waist area of the patient. The waist limiting blocks are slidably assembled horizontally inside the bed frame. When the support plate moves downward in the vertical direction, the two waist limiting blocks perform a linear motion of approaching each other and form a constraint on the waist area of the patient.

[0010] Preferably, two movable plates are installed at the lower end of the support plate. Two driving guide grooves arranged symmetrically left and right are provided at the front end of the movable plate. The driving guide grooves are inclined with the inner side higher and the outer side lower. A fixed plate is arranged outside the movable plate. The fixed plate is fixedly installed horizontally inside the bed frame. A horizontal limiting guide groove arranged horizontally is provided at a position corresponding to the driving guide groove in the movable plate. A connecting rod is slidably inserted into the driving guide groove and the horizontal limiting guide groove on the same side. The connecting rod is fixedly connected to the waist limiting block. A slide rail is slidably assembled at the lower end of the waist limiting block. The slide rail is fixedly installed inside the bed frame and is arranged parallel to the fixed plate.

[0011] Preferably, the driving guide groove is composed of a vertical section and an inclined section. Among them, the vertical section is located on the outer side and the inclined section is located on the inner side. The inclined section is inclined with the outer side lower and the inner side higher.

[0012] Preferably, hip fixing blocks are installed inside the bed frame corresponding to the hip area of the patient. Foot limiting blocks are symmetrically arranged on both the left and right sides of the hip fixing blocks, and the foot limiting blocks are located directly below the foot area of the patient. The foot limiting blocks are slidably assembled horizontally inside the bed frame. When the support plate moves downward in the vertical direction, the two foot limiting blocks perform a linear motion of approaching the hip fixing block synchronously and form a constraint on the foot area of the patient.

[0013] Preferably, the waist limiting blocks and the foot limiting blocks on the same side are fixedly connected by a connecting rod.

[0014] Preferably, waist elastic zones, foot elastic zones, and hip fixing zones are respectively arranged in the regions of the support belt corresponding to the waist limiting blocks, foot limiting blocks, and hip fixing blocks, and the elastic coefficients of the waist elastic zones, foot elastic zones, and hip fixing zones are greater than the elastic coefficient of the support belt.

[0015] Compared with the prior art, the present invention provides a psychiatric restraint device, which has the following beneficial effects: (1) In the present invention, by arranging a support belt to form a support surface, when the support surface moves downward in the vertical direction, the distance between the patient's limbs and the side of the bed frame increases, making the restraint belt in a tight state, reducing the range of movement of the patient's limbs, and improving the restraint effect; when the support surface moves upward, the restraint effect weakens, realizing the dynamic adjustment of the restraint effect. The nursing staff can more quickly and easily restrain the patient, reducing the complexity of the operation, reducing the discomfort of the patient caused by long-term fixation, reducing the risk of local pressure concentration and injury, and improving the comfort of the patient experience.

[0016] (2) When the support surface moves downward, a U-shaped structure is formed. By arranging two rollers to perform synchronous linear motions approaching each other, the opening width of the U-shaped structure is reduced, increasing the contact area between the patient's torso and the support belt, further reducing the range of movement driven by the patient, and enhancing the overall restraint effect.

[0017] (3) By arranging waist limiting blocks to restrain the waist area of the patient, the range of movement of the patient's waist area is reduced, improving the restraint effect on the patient's waist area; by arranging foot limiting blocks in cooperation with hip fixing blocks to restrain the foot area of the patient, the restraint degree of the patient's foot area is further improved.

[0018] (4) The mutual approaching motion of the two waist limiting blocks in the horizontal direction and the linear motion of the support plate in the vertical direction are driven by the same driving source, which not only saves the manufacturing cost but also improves the motion coherence between the two components. Description of the Drawings

[0019] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 It is a schematic structural diagram of the entire psychiatric restraint device in the embodiment; Figure 2 It is a schematic diagram of the support belt in the initial state in the embodiment; Figure 3 It is a schematic diagram of the support belt in the restraint state in the embodiment Figure 1 ; Figure 4Schematic diagram of the support belt in a bound state in the embodiment Figure 2 ; Figure 5 Schematic structural diagram of the hip fixing block in the embodiment; Figure 6 Schematic structural diagram of the support belt in the embodiment; Figure 7 Schematic assembly diagram of the roller and the vertical plate in the embodiment; Figure 8 Schematic assembly diagram of the rotating shaft and the gear in the embodiment; Figure 9 Schematic assembly diagram of the waist limiting block in the embodiment Figure 1 ; Figure 10 Schematic assembly diagram of the waist limiting block in the embodiment Figure 2 ; Figure 11 Schematic structural diagram of the movable plate in the embodiment.

[0020] In the figure: 1. Bed frame; 2. Guide rod; 3. Restraint belt; 4. Support belt; 41. Hip elastic area; 42. Waist elastic area; 43. Foot elastic area; 5. Pillow; 6. Roller; 61. Rotating shaft; 62. First connecting rod; 63. Second connecting rod; 64. Gear; 65. Rack; 7. Support plate; 71. Hip opening; 8. Vertical plate; 81. Vertical sliding groove; 82. Horizontal sliding groove; 9. Hydraulic cylinder; 10. Waist limiting block; 101. Connecting rod; 102. Movable plate; 103. Driving guide groove; 104. Fixed plate; 105. Horizontal limiting guide groove; 106. Slide rail; 11. Foot limiting block; 12. Connecting rod; 13. Hip fixing block. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] This embodiment proposes a psychiatric restraint device, such as Figures 1 to 11As shown, it includes a bed frame 1, guide rods 2 are symmetrically installed on both sides of the bed frame 1, and a plurality of restraint belts 3 are slidably sleeved on the outer circumferential surface of the guide rods 2. A support surface for supporting the patient is arranged in the area between the two guide rods 2 in the bed frame 1, and a pillow 5 is installed on the support surface corresponding to the head area of ​​the patient; when performing protective restraint, the patient is first laid on his back on the support surface, and then the restraint belts 3 are used to fix the patient's limbs to the side of the bed frame 1, and finally the restraint belts 3 are tightened to reduce their length, that is, to reduce the distance between the patient's limbs and the bed frame 1. During the treatment process, if the patient's resistance will weakens, it is necessary to increase the length of the restraint belt 3, so that the movable range of the patient's limbs is increased and the degree of restraint is reduced. This process The process is not only cumbersome to operate but also prone to poor results or patient injuries due to improper operation. Therefore, in this embodiment, a horizontally arranged support belt 4 is provided in the middle area of ​​the bed frame 1, and the two ends of the support belt 4 are respectively wound on two symmetrically arranged rollers 6, and the lower end of the support belt 4 is provided with a support plate 7 slidably assembled in the vertical direction, and the area of ​​the support belt 4 corresponding to the support plate 7 is set as the support surface; the degree of restraint increases with the downward movement distance of the support plate; when performing protective restraint, the support plate 7 moves downward in the vertical direction, and at the same time, the two rollers 6 rotate synchronously relative to each other to unwind the support belt 4, so that the middle area of ​​the support belt 4 is displaced downward, thereby increasing the distance from the patient's limbs to the side of the bed frame 1, thereby increasing the degree of restraint.

[0023] On the basis of the above solution, when the support plate 7 moves downward, a U-shaped structure is formed in the middle area of the support belt 4, and the opening width of the U-shaped structure is the distance between the two rollers 6. In order to further increase the restraint effect, in this embodiment, when the support plate 7 moves downward in the vertical direction, the two rollers 6 move synchronously in a straight line approaching each other, so that the opening width of the U-shaped structure decreases, increasing the contact area between the support belt 4 and the patient, reducing the movement space of the patient's torso, and achieving the purpose of increasing the restraint effect; specifically, vertical plates 8 are arranged on both the front and rear sides of the support belt 4, the vertical plates 8 are installed inside the bed frame 1, a vertical chute 81 arranged in the vertical direction is opened at the position of the support belt 4 corresponding to the support plate 7, and a horizontal chute 82 arranged in the horizontal direction is opened at the position of the vertical plate 8 corresponding to the roller 6; rotating shafts 61 are installed at the centers of both ends of the roller 6, the rotating shafts 61 movably penetrate through the horizontal chutes 82 and are rotatably connected with first connecting rods 62, a second connecting rod 63 arranged horizontally is rotatably connected between the two first connecting rods 62 on the same side, the second connecting rod 63 is fixedly connected with the support plate 7, and the support plate 7 is slidably assembled in the vertical chute 81; a hydraulic cylinder 9 is installed at the bottom of the inner cavity of the support belt 4, and the piston rod of the hydraulic cylinder 9 is fixedly connected with the support plate 7; a gear 64 is fixedly sleeved on the outer circumferential surface of the rotating shaft 61, the gear 64 is meshed with a rack 65, the rack 65 is fixedly installed on the vertical plate 8 and is arranged parallel to the horizontal chute 82; in the initial state, the support plate 7 is located at the highest point in the vertical chute 81, at this time the support surface is horizontally arranged, and the distance between the patient's limbs and the side of the bed frame 1 is the largest, and the restraint effect is the worst; when it is necessary to enhance the restraint effect, the hydraulic cylinder 9 is started, the piston rod of the hydraulic cylinder 9 contracts and drives the support plate 7 to move downward along the vertical chute 81, the support plate 7 drives the middle part of the support belt 4 to move downward, so that the support surface forms a U-shaped structure. At the same time, the support plate 7 drives the two rollers 6 to make synchronous relative movements through the second connecting rod 63 and the rotating shaft 61, so that the opening width of the support surface decreases, increasing the contact area between the patient's torso and the support belt 4 and improving the restraint effect. During the process of the roller 6 moving horizontally along the horizontal chute 82, due to the meshing of the gear 64 and the rack 65, the rotating shaft 61 rotates, that is, drives the roller 6 to rotate in the unwinding direction, meeting the requirement for the length of the support belt 4 when the support surface moves downward.

[0024] Due to the soft nature of the support belt 4 itself, it will form a flexible restraint on the patient's torso. When the patient's impulsive behavior is intense, the waist area can still swing, resulting in a decrease in the restraint effect. Therefore, in this embodiment, waist limit blocks 10 are symmetrically arranged on the left and right sides of the support plate 7, and the waist limit blocks 10 are located directly below the patient's waist area. The waist limit blocks 10 are slidably assembled horizontally inside the bed frame 1. When the support plate 7 moves downward in the vertical direction, the two waist limit blocks 10 move in a straight line towards each other and form a restraint on the patient's waist area, reducing the sway amplitude of the patient's waist area and further improving the restraint effect. In this embodiment, the end faces of the two waist limit blocks 10 that face each other are provided with arc surfaces that are recessed inward, and the arc surfaces fit more closely to the patient's waist curve, increasing the contact area with the patient's waist area.

[0025] In this embodiment, the movement of the support plate 7 in the vertical direction and the movement of the two waist limit blocks 10 towards each other in the horizontal direction are driven by the same driving source. Specifically, two movable plates 102 are installed at the lower end of the support plate 7. Two driving guide grooves 103 that are symmetrically arranged left and right are provided at the front end of the movable plate 102. The driving guide grooves 103 are inclined with a higher inner side and a lower outer side. A fixed plate 104 is arranged outside the movable plate 102. The fixed plate 104 is fixedly installed horizontally inside the bed frame 1. A horizontally arranged horizontal limit guide groove 105 is provided at the position corresponding to the driving guide groove 103 in the movable plate 102. A connecting rod 101 is slidably inserted into the driving guide groove 103 and the horizontal limit guide groove 105 on the same side. The connecting rod 101 is fixedly connected to the waist limit block 10. A slide rail 106 is slidably assembled at the lower end of the waist limit block 10. The slide rail 106 is fixedly installed inside the bed frame 1 and is parallel to the fixed plate 104. In the initial state, the contact surface is in a horizontal state. At this time, the connecting rod 101 is at the lowest position in the driving guide groove 103 and the outermost position in the horizontal limit guide groove 105. When the support plate 7 moves downward in the vertical direction, the support plate 7 drives the movable plate 102 to move downward. The movable plate 102 drives the connecting rod 101 to move inward along the horizontal limit guide groove 105 through the driving guide groove 103, so that the two waist limit blocks 10 make synchronous relative approaching movements. When the support plate 7 moves to the limit position in the opposite direction, the connecting rod 101 is at the highest position in the driving guide groove 103 and the innermost position in the horizontal limit guide groove 105. At this time, the distance between the two waist limit blocks 10 is the smallest, and the degree of restraint on the patient's waist area is the greatest.

[0026] When the support surface is in a horizontal state, the waist limiting block 10 is located below the horizontal support surface, and there is a certain distance between the waist limiting block 10 and the horizontal support surface; if at the initial stage of the downward movement of the support plate 7, the two waist limiting blocks 10 move in a straight line approaching each other, it may cause movement interference between the patient's waist area and the waist limiting block 10, thus posing a safety hazard. To reduce the safety hazard, in this embodiment, the driving guide groove 103 is composed of a vertical section and an inclined section. Among them, the vertical section is located on the outside and the inclined section is located on the inside, and the inclined section is inclined with the outside lower and the inside higher; at the initial stage of the downward movement of the support plate 7, the connecting rod 101 moves in the vertical section. At this time, the connecting rod 101 is always at the outermost side in the horizontal limiting guide groove 105, that is, the distance between the two waist limiting blocks 10 remains unchanged. When the connecting rod 101 enters the inclined section from the vertical section, the two waist limiting blocks 10 then move in a straight line approaching each other. At this time, the patient's waist area moves between the two waist limiting blocks 10, avoiding collision between the patient's waist area and the waist limiting block 10.

[0027] Similarly, in order to further improve the restraint effect on the patient's foot area, in this embodiment, hip fixing blocks 13 are installed inside the bed frame 1 corresponding to the patient's hip area. Foot limiting blocks 11 are symmetrically arranged on the left and right sides of the hip fixing block 13, and the foot limiting blocks 11 are located directly below the patient's foot area; the foot limiting blocks 11 are slidably assembled horizontally inside the bed frame 1; when the support plate 7 moves downward in the vertical direction, the two foot limiting blocks 11 move in a straight line approaching the hip fixing block 13 synchronously, so that the distance between the foot limiting blocks 11 and the hip fixing block 13 decreases, forming a restraint on the patient's foot area.

[0028] To save manufacturing costs, the waist limiting blocks 10 and the foot limiting blocks 11 on the same side are fixedly connected by a connecting rod 12, that is, the two foot limiting blocks 11 move in a straight line approaching each other synchronously with the two waist limiting blocks 10. It should be noted that a hip opening 71 adapted to the hip fixing block 13 is provided in the area of the support plate 7 corresponding to the hip fixing block 13. When the hip opening 71 moves downward in the vertical direction, the hip fixing block 13 passes through the hip opening 71 and contacts the support belt 4.

[0029] To avoid damage to the support belt 4 during the contact and extrusion between the waist limiting block 10, the foot limiting block 11 and the hip fixing block 13 and the support belt 4, in this embodiment, waist elastic areas 42, foot elastic areas 43 and hip elastic areas 41 are respectively provided in the areas of the support belt 4 corresponding to the waist limiting block 10, the foot limiting block 11 and the hip fixing block 13, and the elastic coefficients of the waist elastic areas 42, the foot elastic areas 43 and the hip elastic areas 41 are greater than the elastic coefficient of the support belt 4, ensuring that the support belt 4 produces a certain tensile deformation when being extruded.

[0030] In the description of the present invention, the terms "first", "second", "another", and "yet another" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise stated, "a plurality of" means two or more.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A psychiatric restraint device, comprising a bed frame (1), guide rods (2) being symmetrically mounted on both sides of the bed frame (1), and a plurality of restraint belts (3) being slidably sleeved on the outer circumference of the guide rods (2), characterized in that: A horizontally arranged support belt (4) is provided in the middle area of ​​the bed frame (1); the two ends of the support belt (4) are respectively wound around two symmetrically arranged rollers (6); a support plate (7) slidably assembled in a vertical direction is installed in the middle of the support belt (4); when the support plate (7) moves downward in the vertical direction, the two rollers (6) rotate synchronously relative to each other to unwind the support belt (4), so that the middle area of ​​the support belt (4) moves downward; the degree of restraint increases with the downward movement distance of the support plate (7).

2. The psychiatric restraint device according to claim 1, characterized in that: When the support plate (7) moves downward in the vertical direction, the two rollers (6) synchronously make linear movements approaching each other.

3. The psychiatric restraint device according to claim 2, characterized in that: Both front and rear sides of the support belt (4) are provided with vertical plates (8), the vertical plates (8) being installed inside the bed frame (1), a vertical slide groove (81) arranged in the vertical direction is provided at a position corresponding to the support plate (7) in the support belt (4), and a horizontal slide groove (82) is provided in the horizontal direction starting from a position corresponding to the roller (6) in the vertical plate (8); a rotating shaft (61) is installed at the center of both ends of the roller (6), the rotating shaft (61) movably passes through the horizontal slide groove (82) and is rotatably connected to a first connecting rod (62), and two first connecting rods (62) located on the same side A second connecting rod (63) arranged horizontally is connected and rotatably connected therebetween; the second connecting rod (63) and the support plate (7) are fixedly connected; the support plate (7) is slidably mounted in the vertical slide groove (81); a hydraulic cylinder (9) is installed at the bottom of the inner cavity of the support belt (4); a piston rod of the hydraulic cylinder (9) is fixedly connected to the support plate (7); a gear (64) is fixedly sleeved on the outer circumferential surface of the rotating shaft (61); the gear (64) is meshingly connected to a rack (65); the rack (65) is fixedly mounted on the vertical plate (8) and is arranged parallel to the horizontal slide groove (82).

4. The psychiatric restraint device according to any one of claims 1 to 3, characterized in that: Waist limit blocks (10) are symmetrically arranged on the left and right sides of the support plate (7), and the waist limit blocks (10) are located directly below the waist area of ​​the patient. The waist limit blocks (10) are slidably assembled inside the bed frame (1) in a horizontal direction; when the support plate (7) moves downward in a vertical direction, the two waist limit blocks (10) move linearly towards each other and form a constraint on the waist area of ​​the patient.

5. The psychiatric restraint device according to claim 4, characterized in that: Two movable plates (102) are installed at the lower end of the support plate (7), and two driving guide grooves (103) are provided at the front end of the movable plate (102) in a symmetrical manner, and the driving guide grooves (103) are arranged in an inclined manner with the inner side higher than the outer side; a fixed plate (104) is provided on the outer side of the movable plate (102), and the fixed plate (104) is fixedly installed inside the bed frame (1) along the horizontal direction; a horizontal limit guide groove (105) is provided in the movable plate (102) at a position corresponding to the driving guide groove (103); a connecting rod (101) is slidably inserted in the driving guide groove (103) and the horizontal limit guide groove (105) located on the same side, and the connecting rod (101) and the waist limit block (10) are fixedly connected; a slide rail (106) is slidably mounted on the lower end of the waist limit block (10), and the slide rail (106) is fixedly installed inside the bed frame (1) and is arranged parallel to the fixed plate (104).

6. The psychiatric restraint device according to claim 5, characterized in that: The driving guide groove (103) consists of a vertical section and an inclined section, wherein the vertical section is located on the outside and the inclined section is located on the inside, and the inclined section is arranged in an inclined manner with the outside lower and the inside higher.

7. The psychiatric restraint device according to claim 5, characterized in that: A crotch fixing block (13) is installed inside the bed frame (1) corresponding to the crotch area of ​​the patient, and foot limit blocks (11) are symmetrically arranged on the left and right sides of the crotch fixing block (13), and the foot limit blocks (11) are located directly below the patient's foot area; the foot limit blocks (11) are slidably assembled inside the bed frame (1) along a horizontal direction; when the support plate (7) moves downward along a vertical direction, the two foot limit blocks (11) perform a linear motion synchronously approaching the crotch fixing block (13), and form a constraint on the patient's foot area.

8. The psychiatric restraint device according to claim 7, characterized in that: The waist limiting block (10) and the foot limiting block (11) located on the same side are fixedly connected via a connecting rod (12).

9. The psychiatric restraint device according to claim 8, characterized in that: The areas of the support belt (4) corresponding to the waist limit block (10), the foot limit block (11) and the hip fixing block (13) are respectively provided with a waist elastic area (42), a foot elastic area (43) and a hip elastic area (41), and the elastic coefficients of the waist elastic area (42), the foot elastic area (43) and the hip elastic area (41) are greater than the elastic coefficient of the support belt (4).

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