Restraint bed for psychiatry department
By designing restraint components, stop components, and pressure components for a psychiatric restraint bed, the problems of discomfort during restraint in normal conditions and skin damage during flare-ups have been solved. This design achieves flexible restraint methods and timely safety alarms, improving patient safety and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-19
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, patients with mental illness are prone to self-harm, falling out of bed, and pulling out catheters on their own when they have an attack. Furthermore, using bandages for restraint can easily lead to problems such as strangulation marks, poor circulation, blisters, and skin bruising. At the same time, the unchanged restraint intensity under normal conditions can cause psychological stress to patients.
A psychiatric restraint bed was designed, employing restraint and stop components. The patient can move freely in a normal state through a spiral spring and ratchet mechanism, while the restraint is strengthened when an attack occurs. The pressure component increases the fit through airbags, and the waist-binding component fixes the waist through an inclined shaft and gear mechanism. An alarm sounds in a timely manner.
It allows patients to move relatively freely in a normal state, while providing stronger restraints during an attack to reduce skin damage, lower psychological stress and discomfort, and provide timely alarms, thus improving patient safety and comfort.
Smart Images
Figure CN121818256A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the medical field, and more particularly to a psychiatric restraint bed. Background Technology
[0002] Many patients with mental illness are prone to self-harm, falling out of bed, or pulling out various catheters when they have an episode. If left unchecked, these situations can easily lead to medical and nursing accidents. Therefore, most hospitals use bandages to restrain the patient's limbs to reduce the risks to medical care and nursing.
[0003] However, when bandages are used to restrain a patient's limbs, the patient may struggle unconsciously after the onset of the illness, which can easily cause the bandages to tighten more and more, leading to symptoms such as strangulation marks, poor circulation, blisters, skin bruising, and limb swelling. Moreover, the restraint is the same whether the patient is in an acute or normal state, which can cause discomfort and greater psychological stress, hindering the patient's recovery. Summary of the Invention
[0004] The present invention aims to address the above-mentioned deficiencies by providing a psychiatric restraint bed that allows patients to move more freely in a normal state and provides stronger restraint when patients are having an episode, thereby reducing the psychological stress and discomfort of patients when they are in a normal state, and also avoiding excessive restraint on patients.
[0005] The technical implementation of the present invention is as follows: a psychiatric restraint bed, comprising legs, a bed frame, a housing, restraint components and a stop component, the bed frame being fixedly connected between the four legs, two housings being fixedly connected to the bottom of the bed frame, the stop component being disposed on the housing and connected to the bed frame, and the restraint component being disposed on the stop component and connected to the bed frame.
[0006] In a preferred embodiment of the present invention, the restraint assembly includes a rotating shaft, a winding wheel, a housing, a spiral spring, a soft rope, a restraint ring, and a rope guide frame. Rotating shafts are rotatably connected to both sides of the two housings, and winding wheels are fixedly connected to each of the four rotating shafts. Housings are fixedly connected to both sides of the inner walls of the two housings, and the rotating shafts are rotatably connected to the housings. A spiral spring is connected between the winding wheel and the housing, and the spiral spring is located inside the housing. Soft ropes are fixedly connected to each of the four winding wheels, and a restraint ring is fixedly connected to the end of each of the four soft ropes away from the winding wheel. Four rope guide frames are fixedly connected to the bed frame, and the soft ropes pass through the rope guide frames.
[0007] In a preferred embodiment of the present invention, the stop assembly includes a ratchet, a ramp shaft, a fixed plate, a pawl, a push rod, a small spring, a torsion spring, a limit plate, and a movable plate. Ratchets are rotatably connected to four rotating shafts. A ramp shaft is fixedly connected to one side of each ratchet. A fixed plate is fixedly connected to each of the four rotating shafts. Three pawls are rotatably connected inside the fixed plate. The pawls and ratchets are on the same vertical plane, and pawls have pawl grooves. Three push rods are slidably connected to the fixed plate. One end of each push rod is located in a pawl groove. A small spring connects the push rod to the fixed plate. A torsion spring connects each ratchet to the housing. Two limit plates are fixedly connected to the inner wall of each housing. A movable plate is fixedly connected to each ratchet, and the movable plate contacts the limit plate.
[0008] In a preferred embodiment of the present invention, a pressurizing assembly is further included. The pressurizing assembly is disposed on the housing and includes an air tank, a pressure block, a pressure spring, a hollow tube, and an air bladder. Two air tanks are snapped into each housing. A pressure block is slidably connected inside the air tank. A pressure spring is connected between the pressure block and the air tank. An air bladder is fixedly connected to the inner wall of each restraint ring. A hollow tube is fixedly connected between the air bladder and the air tank. The hollow tube communicates with both the air bladder and the air tank and passes through a guide rope frame.
[0009] In a preferred embodiment of the present invention, a waist-binding assembly is further included. The waist-binding assembly is disposed on the bed frame and includes a binding strap, a guide frame, a guide rail, a slider, a short shaft, a connecting rod, a long shaft, a rack, and a gear. A guide rail is fixedly connected to the bottom of the bed frame, and a slider is slidably connected to the guide rail. Two guide frames are fixedly connected to the bed frame, and a binding strap is fixedly connected to the slider. The binding strap passes through the two guide frames. A short shaft is rotatably connected to the bottom of the slider, and two connecting rods are rotatably connected to the short shaft. A long shaft is rotatably connected between the two connecting rods, and four racks are rotatably connected to the long shaft. Two racks form a group, and there are two groups of racks. A gear is fixedly connected to the inclined shaft, and the racks mesh with the gears. Each rack passes through the housing.
[0010] In a preferred embodiment of the present invention, a connecting frame and an alarm are also included. The connecting frame is fixedly connected between the bed frame and the legs, and the alarm is fixedly connected to the middle of the connecting frame.
[0011] In a preferred embodiment of the present invention, the rack is located below the gear.
[0012] In a preferred embodiment of the present invention, the guide belt frame has a groove for limiting the position of the restraint belt.
[0013] Compared with the prior art, the present invention has the following advantages: 1. First, medical staff have the patient lie on the bed frame and fix four restraint rings to the patient's four limbs respectively. When the patient is in a normal mental state, the patient can control the limbs to move slowly. When the patient has an attack, the patient's struggle will cause the four restraint rings to move at high speed, causing the torsion spring to contract and the moving plate to rotate to contact the limiting plate, so that the patient is restrained to a greater extent in the attack state. The degree of restraint on the patient in the normal state and the attack state is different. While giving the patient freedom of movement in the normal state, it can also restrain the attacking patient more effectively in time, reducing the psychological pressure and discomfort of the patient when in a normal state.
[0014] 2. When the patient begins to struggle during an attack, the ratchet rotates, squeezing the air from the gas tank into the hollow tube, causing the air bladder to inflate. The elastic air bladder allows it to fit more closely to the patient's limbs and is less likely to damage the patient's skin. This reduces the risk of the restraint rings pressing on the patient's hands and feet and causing injuries during an attack. The inflated air bladder can more effectively restrain the patient while reducing the patient's pain during an attack.
[0015] 3. When the patient begins to struggle after the onset of the disease, the inclined plane shaft rotates, which drives the gear to rotate, so that the restraint belt can more firmly fix the patient's waist to the bed frame. When the inclined plane shaft rotates to the point where the movable plate contacts the limiting plate, the slider stops moving, thus avoiding the restraint belt from binding the patient too tightly and causing discomfort.
[0016] 4. When the patient begins to struggle and the racks move, one set of racks will come into contact with the alarm, triggering the alarm. Medical staff can then receive timely information about the patient's condition and receive more prompt treatment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.
[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.
[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention.
[0020] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention.
[0021] Figure 5 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.
[0022] Figure 6 This is a partial three-dimensional structural schematic diagram of the present invention.
[0023] Figure 7 This is a partial cross-sectional perspective view of the three-dimensional structure of the restraint component of the present invention.
[0024] Figure 8 This is a partial cross-sectional perspective view of the three-dimensional structure of the stop assembly of the present invention.
[0025] Figure 9 This is an exploded three-dimensional structural diagram of the stop component of the present invention.
[0026] Figure 10 This is a partial three-dimensional structural diagram of the stop component of the present invention.
[0027] Figure 11 This is a partial cross-sectional perspective view of the three-dimensional structure of the stop assembly of the present invention.
[0028] Figure 12 This is a three-dimensional structural diagram of the first part of the waist-binding component of the present invention.
[0029] Figure 13 This is a three-dimensional structural diagram of the second part of the waist-binding component of the present invention.
[0030] The above-mentioned attached drawings include the following reference numerals: 1. support leg, 2. bed frame, 3. housing, 41. pivot, 42. winding reel, 43. shell, 44. spiral spring, 45. soft rope, 46. restraint ring, 47. rope guide frame, 51. ratchet, 52. inclined plane shaft, 53. fixing plate, 54. pawl, 55. pawl groove, 56. push rod, 57. small spring, 58. torsion spring, 59. limit plate, 510. movable plate, 61. air tank, 62. pressure block, 63. pressure spring, 64. hollow tube, 65. airbag, 71. restraint belt, 72. guide belt frame, 73. guide rail, 74. slider, 75. short shaft, 76. connecting rod, 77. long shaft, 78. rack, 79. gear, 81. connecting frame, 82. alarm. Detailed Implementation
[0031] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.
[0032] Example 1: A psychiatric restraint bed, such as Figures 1-11 As shown, it includes support legs 1, bed frame 2, housing 3, restraint assembly and stop assembly. The four support legs 1 are connected to the bed frame 2 by bolts. Two housings 3 are fixedly connected to the bottom of the bed frame 2. The stop assembly is located on the housing 3 and connected to the bed frame 2. The restraint assembly is located on the stop assembly and connected to the bed frame 2.
[0033] The restraint assembly includes a rotating shaft 41, a winding wheel 42, a housing 43, a spiral spring 44, a soft rope 45, a restraint ring 46, and a rope guide frame 47. The two housings 3 are rotatably connected to the two sides of the housing 41, and the four rotating shafts 41 are all horizontally arranged. The winding wheel 42 is fixedly connected to the four rotating shafts 41. The housing 43 is bolted to the two sides of the inner wall of the two housings 3. The rotating shaft 41 is rotatably connected to the housing 43. The spiral spring 44 is connected between the winding wheel 42 and the housing 43. The spiral spring 44 is located inside the housing 43. The soft rope 45 is fixedly connected to the four winding wheels 42. The restraint ring 46 is fixedly connected to the end of the four soft ropes 45 away from the winding wheel 42. The bed frame 2 is bolted to four rope guide frames 47, and the soft rope 45 passes through the rope guide frames 47.
[0034] The stop assembly includes a ratchet 51, a ramp shaft 52, a fixed plate 53, a pawl 54, a push rod 56, a small spring 57, a torsion spring 58, a limit plate 59, and a movable plate 510. Each of the four rotating shafts 41 is rotatably connected to a ratchet 51. A ramp shaft 52 is fixedly connected to one side of each ratchet 51. Each of the four rotating shafts 41 is bolted to a fixed plate 53. Three pawls 54 are rotatably connected within the fixed plate 53, and the pawls 54 are aligned vertically with the ratchet 51. The plate has a pawl 54 with a pawl groove 55. Three push rods 56 are slidably connected to the fixed plate 53. One end of the push rod 56 is located in the pawl groove 55. A small spring 57 is connected between the push rod 56 and the fixed plate 53. A torsion spring 58 is connected between each ratchet 51 and the housing 3. Two limit plates 59 are bolted to the inner wall of each housing 3. A movable plate 510 is fixedly connected to each ratchet 51. The movable plate 510 will contact the limit plate 59.
[0035] First, the medical staff have the patient lie on the bed frame 2 and fix four restraint rings 46 to the patient's four limbs respectively. When the patient is in a normal mental state, the patient can control the slow movement of the limbs, causing the four restraint rings 46 to move slowly. The slow movement of the four restraint rings 46 will pull the soft rope 45, which will drive the winding wheel 42 to rotate slowly. The slow rotation of the winding wheel 42 will cause the spiral spring 44 to tighten. The slow rotation of the winding wheel 42 will drive the rotating shaft 41 to rotate slowly. The slow rotation of the rotating shaft 41 will drive the fixing plate 53 to rotate slowly. When the fixing plate 53 rotates slowly, it will drive the pawl 54 to rotate. The pawl 54 will not contact the ratchet 51, so the pawl 54 will not drive the ratchet 51 to rotate.
[0036] When the patient's mental state is normal, although there will be some restraint, they can still have a relatively free environment to move around. When the patient has an attack, they can no longer control their limbs to maintain slow movement. The patient's struggle will cause the four restraint rings 46 to move at high speed. The high speed of the four restraint rings 46 will pull the soft rope 45. The soft rope 45 will drive the winding wheel 42 to rotate at high speed. The high speed of the winding wheel 42 will cause the spiral spring 44 to tighten. The high speed of the winding wheel 42 will drive the rotating shaft 41 to rotate at high speed. The high speed of the rotating shaft 41 will drive the fixed plate 53 to rotate at high speed. The high speed of the fixed plate 53 will cause the three pawls 54 to swing away from each other under the action of centrifugal force. The swing of the three pawls 54 away from each other will drive the three push rods 56 to move away from each other. The small spring 57 will be compressed. The movement of the three pawls 54 away from each other will squeeze When the ratchet 51 is pressed, the three pawls 54 rotate, causing the ratchet 51 to rotate as well. The torsion spring 58 is then twisted. The rotation of the ratchet 51 drives the movable plate 510 to rotate. When the movable plate 510 rotates to contact the limiting plate 59, the limiting plate 59 limits the movable plate 510, causing the ratchet 51 to stop rotating. The ratchet 51 stopping rotation causes the fixed plate 53 to stop rotating, which in turn causes the rotating shaft 41 to stop rotating. The rotating shaft 41 stopping rotation causes the winding wheel 42 to stop rotating, further limiting the restraint ring 46. This results in a greater degree of restraint for the patient in the symptomatic state, creating a difference in the degree of restraint between the patient's normal state and symptomatic state. This allows the patient to move freely in the normal state while providing timely and more effective restraint for symptomatic patients, reducing the psychological pressure and discomfort experienced by the patient when in a normal state.
[0037] Once the patient recovers and stops struggling, the torsion spring 58 will reset, causing the ratchet 51 to rotate in the opposite direction, so that the pawl 54 is no longer in contact with the ratchet 51. The small spring 57 will reset, causing the pawl 54 to move closer to each other, so that the pawl 54 is no longer in contact with the ratchet 51. Once the patient stops struggling, the spiral spring 44 will reset, causing the winding wheel 42 to rotate in the opposite direction, and the winding wheel 42 will rewind the soft rope 45 onto the winding wheel 42.
[0038] Example 2: Based on Example 1, such as Figures 3-7As shown, it also includes a pressurization assembly, which is located on the housing 3. The pressurization assembly includes an air tank 61, a pressure block 62, a pressure spring 63, a hollow tube 64, and an air bladder 65. Two air tanks 61 are snapped into each housing 3. The pressure block 62 is slidably connected inside the air tank 61. The pressure spring 63 is connected to the pressure block 62 and the air tank 61 through a hook. An air bladder 65 is fixedly connected to the inner wall of each restraint ring 46. The hollow tube 64 is fixedly connected to the air tank 61. The hollow tube 64 is connected to both the air bladder 65 and the air tank 61. The hollow tube 64 passes through the guide rope frame 47.
[0039] When the patient begins to struggle, the ratchet 51 rotates, causing the inclined shaft 52 to rotate. This rotation compresses the pressure block 62, causing it to move away from the inclined shaft 52. When the movable plate 510 rotates to contact the limiting plate 59, the pressure block 62 contacts the farthest end of the inclined shaft 52, compressing the pressure spring 63. The movement of the pressure block 62 away from the inclined shaft 52 forces air from the gas tank 61 into the hollow tube 64, and then from the hollow tube 64 into the air bladder 65, causing the air bladder 65 to inflate. The elasticity of the air bladder 65 allows it to press against the patient's skin. The airbag 65 fits the patient's limbs more closely and is less likely to damage the patient's skin. It reduces the risk of the restraint ring 46 pressing on the patient's hands and feet and causing injuries when the patient has an attack. The expansion of the airbag 65 can restrain the patient more effectively while reducing the patient's pain when the attack occurs. When the patient recovers and stops struggling, the ratchet 51 rotates in the opposite direction, which drives the inclined shaft 52 to rotate in the opposite direction. The inclined shaft 52 no longer squeezes the pressure block 62, and the pressure spring 63 will reset. The reset of the pressure spring 63 drives the pressure block 62 to move closer to the inclined shaft 52, so that the air in the airbag 65 flows back into the air tank 61, and the airbag 65 contracts.
[0040] Example 3: Based on Example 2, such as Figures 1-3 and Figures 12-13 As shown, it also includes a waist-binding assembly, which is mounted on the bed frame 2. The waist-binding assembly includes a binding strap 71, a guide frame 72, a guide rail 73, a slider 74, a short shaft 75, a connecting rod 76, a long shaft 77, a rack 78, and a gear 79. The guide rail 73 is fixedly connected to the bottom of the bed frame 2, and the slider 74 is slidably connected to the guide rail 73. Two guide frames 72 are bolted to the bed frame 2. The guide frames 72 have grooves for limiting the binding strap 71. The binding strap 71 is fixedly connected to the slider 74. 1. The restraint strap 71 passes through two guide belt frames 72. The bottom of the slider 74 is rotatably connected to a short shaft 75. Two connecting rods 76 are rotatably connected to the short shaft 75. A long shaft 77 is rotatably connected between the two connecting rods 76. Four racks 78 are rotatably connected to the long shaft 77. Two racks 78 form a group, and there are two groups of racks 78. A gear 79 is connected to the inclined shaft 52 through a flat key. The racks 78 mesh with the gears 79. Each rack 78 passes through the housing 3 and is located below the gear 79.
[0041] When the patient begins to struggle, the inclined plane shaft 52 rotates, driving gear 79 to rotate. The rotation of the four gears 79 causes the four racks 78 to move in the same direction. The movement of the four racks 78 in the same direction causes the long shaft 77 to move. The movement of the long shaft 77 causes the two connecting rods 76 to move. The movement of the two connecting rods 76 causes the short shaft 75 to move. The movement of the short shaft 75 causes the slider 74 to move along the guide rail 73. The movement of the slider 74 causes the two ends of the restraint to move. Because the guide frame 72 limits the restraint strap 71, the restraint strap 71 tightens during the movement, thus… The restraint belt 71 securely fastens the patient's waist to the bed frame 2. When the inclined shaft 52 rotates to the point where the movable piece 510 contacts the limiting piece 59, the inclined shaft 52 stops rotating, causing the slider 74 to stop moving. This prevents the restraint belt 71 from binding the patient too tightly and causing discomfort. After the patient returns to normal and stops struggling, the inclined shaft 52 rotates in the opposite direction, causing the gears 79 to rotate in the opposite direction. The four gears 79 rotate in the opposite direction, causing the four racks 78 to move in the opposite direction, which in turn causes the slider 74 to move in the opposite direction, thus loosening the restraint belt 71 from the patient's waist.
[0042] Example 4: Based on Example 3, such as Figures 1-2 As shown, it also includes a connecting frame 81 and an alarm 82. The connecting frame 81 is bolted between the bed frame 2 and the support leg 1, and the alarm 82 is fixedly connected to the middle of the connecting frame 81.
[0043] When the patient begins to struggle, causing the racks 78 to move, one set of racks 78 will come into contact with the alarm 82, causing the alarm 82 to sound. Medical staff can then receive timely information about the patient's condition and receive more prompt treatment.
[0044] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of the invention. Therefore, the scope of the invention should be limited only by the appended claims.
Claims
1. A psychiatric restraint bed, characterized in that, It includes support legs (1), bed frame (2), box (3), restraint assembly and stop assembly. The bed frame (2) is fixedly connected between the four support legs (1). Two boxes (3) are fixedly connected to the bottom of the bed frame (2). The stop assembly is located on the box (3) and connected to the bed frame (2). The restraint assembly is located on the stop assembly and connected to the bed frame (2). The restraint assembly includes a pivot (41), a winding wheel (42), a housing (43), a spiral spring (44), a soft rope (45), a restraint ring (46), and a rope guide frame (47). The two housings (3) are rotatably connected to the pivot (41) on both sides. The winding wheel (42) is fixedly connected to each of the four pivots (41). The housing (43) is fixedly connected to both sides of the inner wall of the two housings (3). The pivot (41) is rotatably connected to the housing (43). The spiral spring (44) is connected between the winding wheel (42) and the housing (43). The spiral spring (44) is located inside the housing (43). The soft rope (45) is fixedly connected to each of the four winding wheels (42). The end of each soft rope (45) away from the winding wheel (42) is fixedly connected to a restraint ring (46). The bed frame (2) is fixedly connected to four rope guide frames (47). The soft rope (45) passes through the rope guide frames (47).
2. The psychiatric restraint bed according to claim 1, characterized in that, The stop assembly includes a ratchet (51), a ramp shaft (52), a fixed plate (53), a pawl (54), a push rod (56), a small spring (57), a torsion spring (58), a limit plate (59), and a movable plate (510). A ratchet (51) is rotatably connected to each of the four rotating shafts (41). A ramp shaft (52) is fixedly connected to one side of each ratchet (51). A fixed plate (53) is fixedly connected to each of the four rotating shafts (41). Three pawls (54) are rotatably connected inside the fixed plate (53). The pawls (54) and the ratchet (51) are on the same vertical plane. The plane has a pawl (54) with a pawl groove (55). Three push rods (56) are slidably connected to the fixed plate (53). One end of the push rod (56) is located in the pawl groove (55). A small spring (57) is connected between the push rod (56) and the fixed plate (53). A torsion spring (58) is connected between each ratchet (51) and the housing (3). Two limit plates (59) are fixedly connected to the inner wall of each housing (3). A movable plate (510) is fixedly connected to each ratchet (51). The movable plate (510) will contact the limit plate (59).
3. A psychiatric restraint bed according to claim 2, characterized in that, It also includes a pressurization assembly, which is located on the housing (3). The pressurization assembly includes an air tank (61), a pressure block (62), a pressure spring (63), a hollow tube (64), and an air bladder (65). Two air tanks (61) are snapped into each housing (3). The pressure block (62) is slidably connected inside the air tank (61). The pressure spring (63) is connected between the pressure block (62) and the air tank (61). An air bladder (65) is fixedly connected to the inner wall of each restraint ring (46). A hollow tube (64) is fixedly connected between the air bladder (65) and the air tank (61). The hollow tube (64) is connected to both the air bladder (65) and the air tank (61). The hollow tube (64) passes through the guide rope frame (47).
4. A psychiatric restraint bed according to claim 3, characterized in that, It also includes a waist-binding assembly, which is mounted on the bed frame (2). The waist-binding assembly includes a binding strap (71), a guide frame (72), a guide rail (73), a slider (74), a short shaft (75), a connecting rod (76), a long shaft (77), a rack (78), and a gear (79). The bottom of the bed frame (2) is fixedly connected to the guide rail (73), and the slider (74) is slidably connected to the guide rail (73). Two guide frames (72) are fixedly connected to the bed frame (2), and the binding strap (71) is fixedly connected to the slider (74). 71) Passing through two guide frames (72), the bottom of the slider (74) is rotatably connected to a short shaft (75), and two connecting rods (76) are rotatably connected to the short shaft (75). A long shaft (77) is rotatably connected between the two connecting rods (76), and four racks (78) are rotatably connected to the long shaft (77). Two racks (78) form a group, and there are two groups of racks (78). A gear (79) is fixedly connected to the inclined shaft (52), and the racks (78) mesh with the gears (79). Each rack (78) passes through the box (3).
5. A psychiatric restraint bed according to claim 4, characterized in that, It also includes a connecting frame (81) and an alarm (82). The connecting frame (81) is fixedly connected between the bed frame (2) and the support leg (1), and the alarm (82) is fixedly connected in the middle of the connecting frame (81).
6. A psychiatric restraint bed according to claim 4, characterized in that, The rack (78) is located below the gear (79).
7. A psychiatric restraint bed according to claim 4, characterized in that, The guide frame (72) has a groove for limiting the restraint strap (71).