Restraint bed

Abstract

The invention belongs to the technical field of restraint beds, and discloses a restraint bed which comprises a bed board, a displacement frame is fixedly arranged on the lower surface of the bed board, rotating wheels are installed at the lower end of the displacement frame, and an overturning restraint mechanism is arranged on the outer surface of the bed board. A patient is prevented from touching the turnover restraining mechanism when not restrained in a turnover storage mode when the turnover restraining mechanism is not used, the turnover restraining mechanism comprises a functional turnover plate, a rotating center rotating shaft is installed on the inner side surface of the functional turnover plate, and one end of a restraining belt is fixedly connected to the outer side surface of the center rotating shaft. According to the restraining bed, the overturning restraining mechanism can be overturned and stored when not used, the situation that a patient touches the restraining device at will when not restrained is effectively avoided, the risk that the patient is injured due to pulling, winding and other behaviors is reduced, and meanwhile the possibility that the patient uses the restraining bed as a tool for self-injury or other people is reduced; and a safer environment is created for patients and medical staff.

Description

Technical Field

[0001] The invention relates to the technical field of restraint beds, in particular to a restraint bed. Background Art

[0002] In medical care, mental rehabilitation and some special scenarios, in order to ensure the safety of patients and the smooth progress of treatment and care, it is often necessary to properly restrain the patient's body. Traditional restraint methods and equipment have many problems and cannot meet the growing needs of safety, comfort and humanity. When the existing restraint equipment is not in use, the restraint components are usually directly exposed to the outside. Patients may touch or even play with these components at will when they are not restrained. For example, some ordinary restraint belts may be hung on the side of the bed, and patients may pull and entangle them, which may not only cause damage to the restraint belts, but also cause injuries to the patients in the process, such as strangulation of fingers. For patients with unstable mental state or cognitive dysfunction, this exposed restraint device may become a tool for them to hurt themselves or others, increasing the probability of accidents. At the same time, traditional waist restraint methods often use hard materials or fixed-size restraint belts, which lack flexibility and adaptability. When the patient struggles or moves during the restraint process, the hard material is easy to hurt the patient. Compression and friction injuries to the waist, especially for patients who are restrained for a long time, may cause redness, swelling and damage to the waist skin, and even affect the blood circulation of the waist, which will lead to more serious health problems. Fixed-size restraints cannot adapt well to the needs of patients of different body shapes. Too tight will restrict the patient's breathing and normal body activities. Too loose will not achieve effective restraint effects, increasing the risk of patients breaking free from the restraints. It is also not conducive to the management and treatment of patients by medical staff. At the same time, general restraints are usually made of a single material, with a hard texture and lack of breathability. After long-term contact with the patient's skin, the local temperature and humidity of the skin will increase, causing the skin to become stuffy and uncomfortable, and easily causing skin itching, rash and other problems. Moreover, during the restraint process, the friction between the restraint belt and the skin is large. When the patient has slight limb activities, the restraint belt may cause friction damage to the skin, especially in the joints and more delicate skin areas, such as wrists and ankles, which increases the patient's pain and reduces the patient's comfort. Summary of the invention

[0003] The object of the present invention is to provide a restraint bed to solve the problem of unreasonable setting of the restraint structure proposed in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a restraint bed, comprising a bed board, a displacement frame is fixedly arranged on the lower surface of the bed board, and a rotating wheel is installed at the lower end of the displacement frame, and a flip restraint mechanism is arranged on the outer surface of the bed board, which is turned over and stored when not in use to prevent the patient from touching the flip restraint mechanism when not restrained;

[0005] The flipping restraint mechanism includes: a functional flap, a rotating central shaft is installed on the inner surface of the functional flap, and one end of a restraining belt is fixedly connected to the outer surface of the central shaft, a limiting rod is fixedly arranged on the inner surface of the functional flap, one end of the restraining belt passes through two limiting rods, and one end of the restraining belt passing through the two limiting rods is fixedly connected to a clamping block, a clamping groove is provided inside one end of the functional flap, a coil spring is connected between one end of the central shaft and the inner surface of the functional flap, one end of the shaft of the central shaft passes through the outer surface of the functional flap, and one end of the central shaft located inside the outer surface of the functional flap is fixedly connected to a positioning wheel, and the outer surface of the positioning wheel is evenly provided with positioning grooves A sliding positioning block is installed inside the outer surface of the functional flap, and a rotating knob is installed on the upper end of the positioning block, and the upper end of the knob passes through the outer surface of the functional flap, and plug interfaces are symmetrically provided on the two outer surfaces of one end of the functional flap, and a sliding plug-in block is installed inside the side surface of the bed board, and a lifting rod is fixedly connected to one end of the plug-in block facing the lower surface of the bed board, and a yield groove is provided on the lower surface of the bed board opposite to the lifting rod, and a fitting cotton piece is sewn and fixed on the inner surface of the end of the restraint belt connected to the clamping block, and one end of the airbag column is fixedly provided on the outer surface of the fitting cotton piece, and the other end of the airbag column is fixedly connected to a contact cotton piece, and the outer surfaces of the contact cotton piece and the fitting cotton piece are both provided with air holes.

[0006] Preferably, the clamping block is mounted by clamping with the functional flap via a clamping slot, and the clamping block is T-shaped.

[0007] By adopting the above technical solution, the T-shaped card block can be more stably stuck in the card slot. When the restraint belt is used, the card block is not easy to accidentally fall out of the card slot, thereby ensuring the stability of the connection of the restraint belt. When the restraint belt needs to be stored, the card block can also be easily taken out of the card slot, which is easy to operate and avoids the situation in which the card block is not firmly connected due to the patient's unconscious struggling movements in actual use, thereby avoiding the loosening of the restraint belt to affect the restraint effect.

[0008] Preferably, the positioning wheel is concentrically arranged with the central rotating shaft, and the positioning wheel is mounted by engaging with the positioning block through a positioning groove.

[0009] By adopting the above technical solution, the concentric setting ensures the synchronous rotation of the positioning wheel and the central shaft. When the length of the restraint belt needs to be adjusted, the central shaft is rotated and the positioning wheel rotates accordingly. The locking action of the positioning groove and the positioning block can be such that after the length of the restraint belt is adjusted, the positioning block can be inserted into the corresponding positioning groove, thereby fixing the position of the central shaft and preventing the restraint belt from changing in length due to accidental rotation of the central shaft during use, ensuring that the restraint belt always maintains an appropriate tightness, providing a stable restraint for the patient, while also avoiding discomfort to the patient caused by the restraint belt being too loose or too tight.

[0010] Preferably, the upper end of the knob is flush with the outer surface of the functional flap, the knob and the functional flap are threadedly connected, and a cross-shaped protrusion is provided at one end of the knob facing the outside of the functional flap.

[0011] By adopting the above technical solution, the upper end of the knob is flush with the outer surface of the functional flap, making the entire structure more beautiful. At the same time, it also avoids accidental injuries such as scratches caused by the protruding knob to patients or medical staff. The threaded connection method enables the knob to stably push the positioning block to slide when rotating, thereby realizing the engagement or separation of the positioning block and the positioning groove. The cross-shaped protrusion design makes it convenient for medical staff to use tools or manually rotate the knob, making the operation more convenient.

[0012] Preferably, the plug-in block is installed by snap-fitting with the plug-in interface, and a spring is connected between the plug-in block and the functional flap, the outer surface of the lifting rod is flush with the outer surface of the functional flap, and the lifting rod is an L-shaped design with the lower end arranged horizontally, and the give way groove is a semicircular design, and the opening end of the give way groove is arranged toward the lower end of the lifting rod.

[0013] By adopting the above technical solution, the snap-fit ​​installation method of the plug-in block and the plug-in interface enables the functional flap to be quickly and firmly connected to the bed board when in use. The outer surface of the lifting rod is flush with the outer surface of the functional flap, ensuring the overall aesthetics and safety and avoiding possible harm to the patient by protruding parts. The L-shaped lifting rod is convenient for medical staff to operate manually. The position of the plug-in block can be easily controlled by pulling the lifting rod. At the same time, the semicircular make way groove cooperates with the lower end of the L-shaped lifting rod to provide space for the movement of the lifting rod, making the operation smoother.

[0014] Preferably, a waist restraint mechanism is provided on the outer surface of the middle section of the bed board, and the patient is prevented from being injured when being restrained by means of a flexible air bag in contact with the patient's waist.

[0015] The above technical solution is adopted to ensure that the patient's waist can be stably limited.

[0016] Preferably, the waist restraint mechanism includes: a restraint ring, which is rotatably mounted on the outer surface of the middle section of the bed board, and a restraint airbag is fixedly provided on the inner surface of the restraint ring, an injection port and an exhaust port are respectively fixedly installed on the outer surfaces of both ends of the restraint ring, and a rotating baffle is installed on the lower surface of the bed board.

[0017] By adopting the above technical solution, the restraint ring can be rotated and stored when not in use so as not to protrude from the upper surface of the bed board.

[0018] Preferably, the restraint ring is a major arc ring design with an opening at one end, and the outer surfaces at both ends of the opening of the restraint ring are flush with the upper surface of the bed board, and the restraint ring is a tight-fitting rotation connection.

[0019] By adopting the above technical solution, the outer surfaces of the two ends of the restraint ring opening are flush with the upper surface of the bed board, which prevents the patient from being scratched or bumped when lying or moving, and improves the patient's comfort and safety. The tight-fitting rotation connection makes the restraint ring more stable during rotation, and will not shake or loosen.

[0020] Preferably, the lower ends of the injection port and the exhaust port both penetrate the inner surface of the confinement ring, and the interior of the confinement ring is hollow in design.

[0021] By adopting the above technical solution, the lower ends of the injection interface and the exhaust interface penetrate the inner surface of the restraint ring, so that the gas can directly enter or discharge the restraint ring, ensuring the smoothness and efficiency of gas transmission. In actual use, medical staff can adjust the pressure of the restraint airbag by injecting or discharging gas according to the patient's waist comfort and restraint requirements, which can not only ensure that the patient will not be overly oppressed when being restrained, but also provide sufficient restraint force to prevent the patient from breaking free or accidents.

[0022] Preferably, the baffle is a circular plate with a section at one end, and the section of the baffle fits with the outer surface of the restraint ring.

[0023] By adopting the above technical solution, the restraint ring can be supported by the baffle plate when the baffle plate rotates during the restraint process.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the restraint bed:

[0025] 1. The flip restraint mechanism can be flipped and stored when not in use, effectively preventing patients from touching the restraint device at will when not restrained, reducing the risk of injury to patients due to pulling, entanglement and other behaviors, and also reducing the possibility of patients using it as a tool to hurt themselves or others, creating a safer environment for patients and medical staff;

[0026] Furthermore, the fitting cotton sheet, airbag column and contact cotton sheet arranged on the inner side of one end of the restraint belt not only increase the softness of contact with the skin, but also further reduce the pressure of the restraint belt on the skin through the elastic buffering effect of the airbag column. At the same time, the design of the air vents helps air circulation, keeps the skin dry, and reduces the probability of skin stuffiness, itching, rash and other problems. Even if the patient wears the restraint belt for a long time, it can reduce the pain and irritability caused by skin discomfort, thereby improving the patient's cooperation and overall comfort.

[0027] 2. The waist restraint mechanism adopts the design of restraint ring and flexible airbag. Compared with the traditional hard or fixed size restraint method, it fits the patient's waist curve better. It can provide effective restraint while reducing the pressure and friction on the waist. When the patient struggles or moves, the flexible airbag can play a buffering role, reduce the risk of waist injury, and protect the patient's waist health;

[0028] Furthermore, the flexible airbag arranged inside the restraint ring of the waist restraint mechanism can be adaptively adjusted according to the patient's waist shape to provide uniform support for the waist. This flexible support conforms to the principle of ergonomics, effectively reduces fatigue and soreness of waist muscles, and enables the patient to maintain a relatively comfortable posture in a restrained state, which is beneficial to the patient's physical and mental health and rehabilitation.

[0029] Furthermore, the restraint ring of the waist restraint mechanism is rotatably mounted on the bed board, and an injection interface and an exhaust interface are respectively provided at both ends, so that medical staff can inject or exhaust gas according to the actual situation of the patient to adjust the pressure and comfort of the restraint airbag. This simple and intuitive operation method does not require complicated tools and skills, so that medical staff can quickly and accurately complete the adjustment of the waist restraint.

[0030] 3. The flip restraint mechanism and waist restraint mechanism can be neatly flipped and stored when not in use, avoiding problems such as entanglement and knotting of the restraint belt. When in use, it can be unfolded and restrained with simple operations, which greatly improves the work efficiency of medical staff and saves time and energy;

[0031] Furthermore, the length and tightness of the restraint belt can be adjusted by turning a knob, allowing medical staff to make precise adjustments more conveniently to ensure the effectiveness and comfort of the restraint, while also reducing discomfort to patients caused by improper adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the three-dimensional structure of the bed board and the baffle connected to the present invention;

[0034] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall working state of the present invention;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the overall cutaway surface of the present invention;

[0036] Figure 5 It is a three-dimensional structural schematic diagram of the cross-section surface of the functional flap, the plug-in block and the lifting rod of the present invention;

[0037] Figure 6 This is a schematic diagram of the three-dimensional structure of the functional flap and the plug interface of the present invention;

[0038] Figure 7 This is a schematic diagram of the three-dimensional structure of the positioning wheel, the positioning groove and the positioning block connected in the present invention;

[0039] Figure 8 It is a three-dimensional structural schematic diagram of the cross-section surface of the functional flap, the clamping block and the clamping slot of the present invention;

[0040] Fig. 9 It is a three-dimensional structural schematic diagram of the cross-section surface of the central shaft, the restraining belt and the clamping block of the present invention;

[0041] Fig.10 It is a schematic diagram of the three-dimensional structure of the airbag column, the contact cotton sheet and the air permeable hole of the present invention.

[0042] In the figure: 1. bed board; 2. displacement frame; 3. functional flap; 4. central shaft; 5. restraint belt; 6. limit rod; 7. clamping block; 8. clamping slot; 9. coil spring; 10. positioning wheel; 11. positioning slot; 12. positioning block; 13. knob; 14. plug interface; 15. plug block; 16. lifting rod; 17. clearance slot; 18. fitting cotton sheet; 19. air bag column; 20. contact cotton sheet; 21. air vent; 22. restraint ring; 23. injection interface; 24. exhaust interface; 25. restraint air bag; 26. baffle. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-Figure 10 , the present invention provides a technical solution: a restraint bed.

[0045] Embodiment 1: This embodiment discloses a bed board 1, a displacement frame 2 is fixedly provided on the lower surface of the bed board 1, and a rotating wheel is installed at the lower end of the displacement frame 2, and a flipping restraint mechanism is provided on the outer surface of the bed board 1, which prevents the patient from touching the flipping restraint mechanism when not restrained by flipping and storing the bed board when not in use;

[0046] The flipping restraint mechanism includes: a functional flap 3, a rotating central shaft 4 is installed on the inner surface of the functional flap 3, and one end of a restraining belt 5 is fixedly connected to the outer surface of the central shaft 4, a limiting rod 6 is fixedly arranged on the inner surface of the functional flap 3, one end of the restraining belt 5 passes through two limiting rods 6, and one end of the restraining belt 5 passing through the two limiting rods 6 is fixedly connected to a clamping block 7, a clamping groove 8 is opened inside one end of the functional flap 3, a coil spring 9 is connected between one end of the central shaft 4 and the inner surface of the functional flap 3, one end of the rotating shaft of the central shaft 4 passes through the outer surface of the functional flap 3, and one end of the central shaft 4 located inside the outer surface of the functional flap 3 is fixedly connected to a positioning wheel 10, and the outer surface of the positioning wheel 10 is evenly provided with positioning grooves 11, and the outer surface of the functional flap 3 is provided with a positioning groove 11. A sliding positioning block 12 is installed inside the surface, and a rotating knob 13 is installed on the upper end of the positioning block 12, and the upper end of the knob 13 passes through the outer surface of the functional flap 3, and the two outer surfaces of one end of the functional flap 3 are symmetrically provided with plug interfaces 14, a sliding plug-in block 15 is installed inside the side surface of the bed board 1, and the end of the plug-in block 15 facing the lower surface of the bed board 1 is fixedly connected with a lifting rod 16, and a yielding groove 17 is provided on the lower surface of the bed board 1 opposite to the lifting rod 16, a fitting cotton sheet 18 is sewn and fixed on the inner surface of the end of the restraint belt 5 connected to the clamping block 7, one end of the airbag column 19 is fixedly provided on the outer surface of the fitting cotton sheet 18, and the other end of the airbag column 19 is fixedly connected with a contact cotton sheet 20, and the outer surfaces of the contact cotton sheet 20 and the fitting cotton sheet 18 are both provided with air holes 21;

[0047] The clamping block 7 is clamped and installed with the functional flap 3 through the clamping slot 8, and the clamping block 7 is T-shaped;

[0048] The positioning wheel 10 is concentrically arranged with the central rotating shaft 4, and the positioning wheel 10 is mounted by engaging with the positioning block 12 through the positioning groove 11;

[0049] The upper end of the knob 13 is flush with the outer surface of the functional flap 3, and the knob 13 is threadedly connected to the functional flap 3, and a cross-shaped protrusion is provided at one end of the knob 13 facing the outside of the functional flap 3;

[0050] The plug-in block 15 is engaged with the plug-in interface 14, and a spring is connected between the plug-in block 15 and the functional flap 3. The outer surface of the lifting rod 16 is flush with the outer surface of the functional flap 3, and the lifting rod 16 is an L-shaped design with the lower end arranged horizontally, and the clearance groove 17 is a semicircular design, and the opening end of the clearance groove 17 is arranged toward the lower end of the lifting rod 16;

[0051] When the restraint bed is in normal use, the bed board 1 is moved to the specified position through the displacement frame 2, and the patient lies on the bed board 1. Then, the hand reaches to the clearance groove 17 on the lower surface of the bed board 1 to pull the lifting rod 16. The lifting rod 16 drives the plug-in block 15 to slide and compress the spring between the functional flap 3 and the plug-in block 15 to disengage from the plug-in interface 14 on the side surface of the functional flap 3. At this time, one end of the functional flap 3 is pressed to rotate the functional flap 3 to drive the restraint belt 5 to be set upward, and then the lifting rod 16 is released. At this time, the plug-in block 15 slides through the plug-in interface 14 on the other side of the functional flap 3 under the support of the spring between the functional flap 3 to engage with the functional flap 3, and the relative position limit of the functional flap 3 and the bed board 1 is restored;

[0052] Then, the restraint belt 5 is pulled by the clamping block 7 so that the restraint belt 5 passes through the limiting rod 6 and moves, and the restraint belt 5 drives the central shaft 4 to rotate and unwind, until the restraint belt 5 passes around the patient's limb and moves to the clamping slot 8. At this time, the clamping block 7 is engaged with the clamping slot 8. At this time, the central shaft 4 is driven by the winding spring 9 between the functional flap 3 to tighten the restraint belt 5, and then the cross-shaped protrusion at the upper end of the knob 13 drives the knob 13 to rotate. The knob 13 drives the positioning block 12 to slide downward and engage with the positioning groove 11 on the surface of the positioning wheel 10 through the threaded connection with the functional flap 3. At this time, the central shaft 4 cannot rotate to limit the restraint belt 5, thereby ensuring the stability of the limitation of the patient's limb;

[0053] When the patient's limbs are restrained, the restraint belt 5 contacts the patient's limbs through the contact cotton piece 20. When the patient struggles, the contact cotton piece 20 maintains contact with the patient's skin. When the patient's limbs move, the contact cotton piece 20 maintains a stable fit with the patient's skin under the flexible support of the airbag column 19 to avoid friction. At the same time, the air holes 21 on the surface of the fitting cotton piece 18 and the contact cotton piece 20 ensure the breathability of the restrained part of the patient's limbs.

[0054] Embodiment 2: Based on Embodiment 1, this embodiment discloses that a waist restraint mechanism is provided on the outer surface of the middle section of the bed board 1, and the patient is prevented from being injured when being restrained by a flexible airbag in contact with the patient's waist;

[0055] The waist restraint mechanism includes: a restraint ring 22, which is rotatably mounted on the outer surface of the middle section of the bed board 1, and a restraint airbag 25 is fixedly arranged on the inner surface of the restraint ring 22, and an injection interface 23 and an exhaust interface 24 are fixedly mounted on the outer surfaces of both ends of the restraint ring 22, and a rotatable baffle 26 is installed on the lower surface of the bed board 1;

[0056] The restraining ring 22 is designed as a major arc ring with an opening at one end, and the outer surfaces of the two ends of the opening of the restraining ring 22 are flush with the upper surface of the bed board 1, and the restraining ring 22 is a tight-fitting rotation connection;

[0057] The lower ends of the injection port 23 and the exhaust port 24 both penetrate the inner surface of the constraint ring 22, and the interior of the constraint ring 22 is hollow;

[0058] The baffle 26 is a circular plate with a section at one end, and the section of the baffle 26 fits the outer surface of the restraining ring 22;

[0059] When the patient lies on the bed board 1, the restraint ring 22 is rotated so that the open end of the restraint ring 22 faces downward and is flush with the lower surface of the functional flap 3. At this time, the baffle 26 is rotated so that the baffle 26 is flush with the open end of the restraint ring 22 to ensure that the restraint ring 22 cannot rotate. Then, the interior of the restraint ring 22 is inflated through the injection interface 23 so that the restraint airbag 25 expands and fits the patient's waist. The gas pressure is used to limit the patient's position while preventing the patient from being injured when struggling. After use, the gas inside the restraint ring 22 is released by unscrewing the exhaust interface 24.

[0060] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A restraint bed, comprising a bed board (1), a displacement frame (2) being fixedly arranged on the lower surface of the bed board (1), and a rotating wheel being installed at the lower end of the displacement frame (2), characterized in that: The outer surface of the bed board (1) is provided with a flipping restraint mechanism, which is flipped and stored when not in use to prevent the patient from touching the flipping restraint mechanism when not restrained; The overturning restraint mechanism comprises: a functional flap (3), the inner surface of the functional flap (3) is provided with a rotating central shaft (4), and the outer surface of the central shaft (4) is fixedly connected to one end of a restraining belt (5), the inner surface of the functional flap (3) is fixedly provided with a limiting rod (6), one end of the restraining belt (5) passes through two limiting rods (6), and one end of the restraining belt (5) passing through the two limiting rods (6) is fixedly connected to a clamping block (7), A card slot (8) is provided inside one end of the functional flap (3), a coil spring (9) is connected between one end of the central rotating shaft (4) and the inner surface of the functional flap (3), one end of the rotating shaft of the central rotating shaft (4) passes through the outer surface of the functional flap (3), and one end of the central rotating shaft (4) located inside the outer surface of the functional flap (3) is fixedly connected to a positioning wheel (10), and the outer surface of the positioning wheel (10) is evenly provided with positioning slots (11), and the functional flap (3) is fixed to the outer surface of the functional flap (3). A sliding positioning block (12) is installed inside the outer surface, and a rotating knob (13) is installed on the upper end of the positioning block (12), and the upper end of the knob (13) passes through the outer surface of the functional flap (3), and plug-in interfaces (14) are symmetrically provided on the two outer surfaces of one end of the functional flap (3). A sliding plug-in block (15) is installed inside the side surface of the bed board (1), and a lifting rod (16) is fixedly connected to one end of the plug-in block (15) facing the lower surface of the bed board (1). A clearance groove (17) is provided on the lower surface of the bed board (1) opposite to the lifting rod (16); a fitting cotton sheet (18) is sewn and fixed on the inner surface of one end of the restraining belt (5) connected to the clamping block (7); one end of an airbag column (19) is fixedly provided on the outer surface of the fitting cotton sheet (18); and a contact cotton sheet (20) is fixedly connected to the other end of the airbag column (19); and ventilation holes (21) are provided on the outer surfaces of the contact cotton sheet (20) and the fitting cotton sheet (18).

2. A restraint bed according to claim 1, characterized in that: The clamping block (7) is mounted by clamping with the functional flap (3) via a clamping slot (8), and the clamping block (7) is designed to be T-shaped.

3. A restraint bed according to claim 1, characterized in that: The positioning wheel (10) and the central rotating shaft (4) are arranged concentrically, and the positioning wheel (10) is mounted by engaging with the positioning block (12) through the positioning groove (11).

4. A restraint bed according to claim 1, characterized in that: The upper end of the knob (13) is flush with the outer surface of the functional flap (3), the knob (13) and the functional flap (3) are threadedly connected, and a cross-shaped protrusion is provided at one end of the knob (13) facing the outside of the functional flap (3).

5. The restraint bed according to claim 1, characterized in that: The plug-in block (15) is snap-fitted with the plug-in interface (14), and a spring is connected between the plug-in block (15) and the functional flap (3). The outer surface of the lifting rod (16) is flush with the outer surface of the functional flap (3), and the lifting rod (16) is L-shaped with the lower end arranged horizontally. The clearance groove (17) is semicircular in design, and the opening end of the clearance groove (17) is arranged toward the lower end of the lifting rod (16).

6. The restraint bed according to claim 1, characterized in that: The outer surface of the middle section of the bed board (1) is provided with a waist restraint mechanism, which prevents the patient from being injured when being restrained by means of a flexible air bag in contact with the patient's waist.

7. A restraint bed according to claim 6, characterized in that: The waist restraint mechanism comprises: a restraint ring (22), the restraint ring (22) is rotatably mounted on the outer surface of the middle section of the bed board (1), and a restraint airbag (25) is fixedly arranged on the inner surface of the restraint ring (22), an injection port (23) and an exhaust port (24) are respectively fixedly mounted on the outer surfaces of both ends of the restraint ring (22), and a rotatable baffle (26) is installed on the lower surface of the bed board (1).

8. A restraint bed according to claim 7, characterized in that: The restraining ring (22) is designed as an arc ring with an opening at one end, and the outer surfaces at both ends of the opening of the restraining ring (22) are flush with the upper surface of the bed board (1), and the restraining ring (22) is tightly fitted and rotatably connected.

9. The restraint bed according to claim 7, characterized in that: The lower ends of the injection interface (23) and the exhaust interface (24) both penetrate the inner surface of the restraint ring (22), and the interior of the restraint ring (22) is hollow.

10. The restraint bed according to claim 7, characterized in that: The baffle (26) is designed as a circular plate with a cross section at one end, and the cross section of the baffle (26) fits the outer surface of the restraint ring (22).

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