Protective device for preventing generation of bedsores for old people

Abstract

The invention relates to the technical field of nursing equipment, in particular to a bedsore generation prevention protection device for old people, which comprises a bed frame, two angle-adjustable protection frames are mounted on the bed frame, turning-over rollers driven by a first motor are rotatably connected between the inner surfaces of the two protection frames, and a water filling cushion bag is wound between the two turning-over rollers. A water filling cushion bag is arranged on the bed frame, a temperature control assembly communicated with the water filling cushion bag is arranged on the bed frame, an elastic rubber cushion is arranged on the bed frame and corresponds to the position below the water filling cushion bag, a group of bag cushion areas which are regularly distributed are arranged on the elastic rubber cushion, and a jacking bag is arranged on each bag cushion area. The device has the beneficial effects that when the device is used, on one hand, auxiliary turning over of a patient and rapid conversion of the body posture or the prone posture of the patient can be achieved, and on the other hand, blood circulation of the patient can be accelerated in a cam massage mode and a bag pressure massage mode; in addition, the device can achieve the purpose of preventing bedsore generation in a ventilation and dehumidification mode and achieve automatic getting-up assistance of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of nursing equipment, in particular to a protective device for preventing bedsore formation for the elderly. Background Art

[0002] Pressure sores, also known as pressure ulcers or bedsores, are caused by long-term pressure on local tissues, resulting in continuous ischemia, hypoxia, and malnutrition, leading to tissue ulceration and necrosis. Skin pressure sores are a common problem in rehabilitation treatment and nursing. The elderly have poor immunity, which makes their bodies sick all year round and they will lie in bed for a long time. Long-term bed rest is very likely to cause bedsores in the elderly.

[0003] To prevent bedsores in the elderly, caregivers typically turn the elderly person over regularly daily to allow for timely heat dissipation and ventilation, thereby preventing prolonged pressure on the elderly's body parts. This approach requires constant care from the caregiver and is highly dependent on the caregiver. Patent document CN114469579A discloses a device for preventing bedsores in elderly care. The device's undulating shaft not only massages the elderly person's body but also increases the gap between the elderly person and the mattress, facilitating ventilation and reducing the growth of anaerobic bacteria. However, the device presents the following problems: 1. It is not convenient to realize the patient's assisted turning over and the rapid conversion of the patient's body posture or lying position; 2. It is not convenient to accelerate the patient's blood circulation through cam massage and capsule pressure massage; 3. It is not convenient to prevent bedsores by ventilation and dehumidification; 4. It is not convenient to assist the patient to stand up automatically; Based on this, the present invention provides a protective device for preventing bedsores for the elderly to solve the problems raised in the above background technology. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art and provides an anti-bedsore protection device for the elderly to solve the problems that the prior art devices are not convenient for realizing the patient's assisted turning over and the patient's rapid change of body posture or lying position, are not convenient for accelerating the patient's blood circulation through cam massage and bladder pressure massage, are not convenient for realizing the purpose of preventing bedsore formation through ventilation and dehumidification, and are not convenient for realizing automatic assistance for the patient to stand up.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A protective device for preventing bedsores for the elderly, comprising a bed frame, two angle-adjustable guard frames are installed on the bed frame, and a turning roller driven by a first motor is rotatably connected between the inner surfaces of the two guard frames, and a water-filled pad is wound between the two turning rollers. The bed frame is equipped with a temperature control component connected to the water-filled pad, and an elastic rubber pad is installed on the bed frame at a position corresponding to the position below the water-filled pad, and a group of regularly distributed pad areas are provided on the elastic rubber pad, each of the pad areas is equipped with a lifting bag, and each of the pad areas is provided with a group of dehumidification holes, and a pressure-controlled pump is installed on the bed frame, and the inner cavity of each lifting bag is connected to the pressure-controlled pump, and a first linear transmission module and two second linear transmission modules are respectively installed between the inner surfaces of the bed frame, the first linear transmission module is transmission-mounted with a cam massage component, and the two second linear transmission modules are transmission-connected with a rising component.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, two sets of symmetrically arranged universal casters are installed on the bottom surface of the bed frame, a single-chip microcomputer is installed on the bed frame, the two guard frames are hinged to the bed frame, and a set of arm adjustment push rods are hinged between the two guard frames and the bed frame.

[0008] The beneficial effect of adopting the above-mentioned further scheme is that when the present device is in use, the relative height difference of the two guard frames or the two turning rollers can be adjusted by setting the hinged structure of the guard frame and the bed frame and the setting of the adjusting arm push rod. When the elderly patient needs to turn to the left, the height of the left turning roller is higher than that of the right turning roller. By synchronously controlling the rotation direction and rotation speed of the two turning rollers, the water-filled pad is rotated to the right, thereby realizing the left turning of the elderly patient. When the elderly patient needs to turn to the right, the height of the right turning roller is higher than that of the left turning roller. By synchronously controlling the rotation direction and rotation speed of the two turning rollers, the water-filled pad is rotated to the left, thereby realizing the right turning of the elderly patient. By realizing the left and right turning functions, the self-service turning activity of the elderly patient is realized. By realizing the effect of the self-service turning activity, the patient's body parts can be fully moved and the fixed-point squeezing rate of the body parts is reduced, thereby realizing the purpose of preventing bedsores in the elderly patient.

[0009] Furthermore, a guide roller is rotatably connected to each of the two bed frames, and the guide roller fits with the water-filled cushion bag. An armrest guard is fixedly installed on each of the two bed frames.

[0010] Furthermore, a pressure probe and an electromagnetic valve are provided at the connection point between the pressure-controlled pump and each lifting bag, and the data end of the pressure probe and the control end of the electromagnetic valve are both connected to the single-chip microcomputer data.

[0011] The beneficial effect of adopting the above further scheme is that when the device is used, the air pressure probe and the electromagnetic air valve at the connection between the pressure control pump and each lifting bag can be set, so that the expansion amplitude of each lifting bag and the layout height of each lifting bag can be independently controlled. By changing the expansion amplitude and layout height of each lifting bag, on the one hand, a contour-fitting effect can be achieved for the patient, thereby improving the patient's comfort. On the other hand, the patient's lying or supine position can be quickly changed. The effect can be quickly switched by the patient's lying or supine position, thereby quickly adjusting the pressure bearing strength and pressure intensity of various parts of the patient's body. By cyclically changing the pressure bearing strength and pressure intensity of various parts of the patient's body, the probability of the patient's body parts being squeezed for a long time in a fixed or directional manner can be effectively reduced, thereby achieving the prevention of bedsores for elderly patients. At the same time, when the device is in use, the layout height of each lifting bag can be cyclically changed within a set period, and then the patient's massage purpose is achieved through the bag pressure method, thereby accelerating the user's blood circulation. Furthermore, the temperature control component includes a liquid storage tank installed on the bed frame and a diversion cavity opened in the two turning rollers. The two diversion cavities are connected to the inner cavity of the water-filled cushion bag. The two diversion cavities are respectively connected to a liquid inlet pipe and a liquid return pipe. The liquid storage tank is connected to two pump bodies, and the two pump bodies are respectively connected to the liquid inlet pipe and the liquid return pipe. An electric heater is installed inside the liquid storage tank, and the water-filled cushion bag is made of silicone.

[0012] The beneficial effect of adopting the above further scheme is that when elderly patients use this device, through the setting of the two pump bodies, on the one hand, the water filling amount of the water-filled pad can be controlled and then the expansion amplitude and softness of the water-filled pad can be controlled; on the other hand, through the setting of the temperature control component, the water temperature in the water-filled pad can be adjusted.

[0013] Furthermore, the cam massage component includes a massage frame and a drive module. The massage frame is slidably connected to the bed frame and is driven by a first linear transmission module. A camshaft is rotatably connected between the inner surfaces of the massage frame and is driven by the drive module. Two groups of symmetrically arranged cam massage blocks are installed on the camshaft. Each of the cam massage blocks has a different installation angle on the camshaft. A group of regularly distributed massage balls are embedded in the outer ring surface of the cam massage block, and an air guide component is provided in the camshaft.

[0014] Furthermore, the driving module includes a transmission shaft rotatably connected to the inner surface of the bed frame, a second motor is installed on the bed frame, and the output shaft end of the second motor is fixedly connected to the transmission shaft. A hollow shaft is rotatably installed on the inner wall of the massage frame, and a hollow groove with openings at both ends and slidingly connected to the transmission shaft is fixedly opened inside the hollow shaft. The cross-sections of the hollow groove and the transmission shaft are both regular polygons. A differential shaft is rotatably installed on the massage frame, and a bevel gear is installed on both the differential shaft and the hollow shaft. The two bevel gears are engaged with each other, and the differential shaft is connected to the camshaft through a belt.

[0015] Furthermore, the air guide assembly includes a fan installed on the massage frame, a filter is installed on the air inlet port of the fan, an air distribution duct is provided in the camshaft, the air outlet port of the fan is connected to the air distribution duct through a pipe, and a plurality of groups of regularly distributed hot air nozzles are provided on the camshaft, and each of the hot air nozzles is connected to the air distribution duct.

[0016] The beneficial effect of adopting the above-mentioned further scheme is that when the device is used, when time is needed to massage a specified part of the patient's body, first, under the driving action of the first linear transmission module, the massage frame moves to a matching position with the part to be massaged, and then the second motor outputs the speed at the set power. After the second motor outputs the speed, the multiple cam massage blocks and massage balls 23 are set to achieve cam massage of the specified part of the patient's body. The cam massage effect is achieved to promote the patient's blood circulation, and the promotion of blood circulation is used to achieve the purpose of preventing the formation of bedsores in the patient. When the cam massage component is working, the fan can discharge air at a constant temperature. The constant temperature discharge of the fan reduces the moisture content of the patient's skin. By reducing the moisture content of the patient's skin, the purpose of ventilation, dehumidification and preventing the formation of bedsores in the patient is achieved.

[0017] Furthermore, the raising component includes a movable frame and a raising frame, the movable frame is transmission-connected to a second linear transmission module, the movable frame is slidingly connected to the bed frame, a group of lifting push rods are installed between the movable frame and the raising frame, and a rubber roller is rotatably installed between the inner surfaces of the raising frame, the rubber roller is made of rubber, and the axis of the rubber roller is perpendicular to the axis of the turning roller.

[0018] Furthermore, the two rising parts are respectively arranged on both sides of the cam massage part, and the cam massage block and the rubber roller are both arranged below the elastic rubber pad.

[0019] The beneficial effect of adopting the above-mentioned further scheme is that, when in use, the layout heights of the two rubber rollers can be independently adjusted through the setting of the two rising parts. After the layout heights of the two rubber rollers are changed independently, the layout shapes of the elastic rubber pads and water-filled pads are changed accordingly, thereby achieving the purpose of assisting the patient to stand up or assisting in changing the patient's lying position and body posture.

[0020] The beneficial effects of the present invention are: 1. When the device is used, on the one hand, it can realize the patient's assisted turning over and rapid conversion of the patient's body posture or lying position. On the other hand, the device can accelerate the patient's blood circulation through cam massage and sac pressure massage. The device can also prevent the formation of bedsores through ventilation and dehumidification and realize automatic assistance for the patient to stand up.

[0021] 2. When the device is used, when it is necessary to massage a specific part of the patient's body, first, under the driving action of the first linear transmission module, the massage frame moves to a position matching the part to be massaged. Then, the second motor outputs the speed at the set power. After the second motor outputs the speed, the multiple cam massage blocks and massage balls 23 are set to achieve cam massage of the specific part of the patient's body. The cam massage effect is achieved to promote the patient's blood circulation, and the promotion of blood circulation is used to achieve the purpose of preventing the formation of bedsores in the patient. When the cam massage component is working, the fan can discharge air at a constant temperature. The constant temperature of the fan can reduce the moisture content of the patient's skin. By reducing the moisture content of the patient's skin, the purpose of ventilation, dehumidification and preventing the formation of bedsores in the patient is achieved.

[0022] 3. When the present invention is in use, the air pressure probe and the electromagnetic air valve at the connection between the pressure control pump and each lifting bag are set, so that the expansion amplitude of each lifting bag and the layout height of each lifting bag can be independently controlled. By changing the expansion amplitude and layout height of each lifting bag, on the one hand, the patient's contour-fitting effect can be achieved, thereby improving the patient's comfort. On the other hand, the patient's lying or supine position can be quickly changed. The effect can be quickly switched by the patient's lying or supine position, thereby quickly adjusting the pressure-bearing strength and pressure-bearing intensity of various parts of the patient's body. By cyclically changing the pressure-bearing strength and pressure-bearing intensity of various parts of the patient's body, the probability of the patient's body parts being squeezed for a long time in a fixed or directional manner can be effectively reduced, thereby achieving the prevention of bedsores for elderly patients. At the same time, when the present device is in use, the layout height of each lifting bag can be cyclically changed within a set period, and then the patient's massage purpose is achieved through the bag pressure method, thereby accelerating the user's blood circulation.

[0023] 4. In the present invention, when it is necessary to turn an elderly patient to the left, the height of the left turning roller is higher than that of the right turning roller, and by synchronously controlling the rotation direction and rotation speed of the two turning rollers, the water-filled pad is rotated to the right, thereby realizing the left turning of the elderly patient. When it is necessary to turn an elderly patient to the right, the height of the right turning roller is higher than that of the left turning roller, and by synchronously controlling the rotation direction and rotation speed of the two turning rollers, the water-filled pad is rotated to the left, thereby realizing the right turning of the elderly patient. By realizing the left and right turning functions, the self-service turning activity of the elderly patient is realized. By realizing the effect of the self-service turning activity, the patient's body parts can be fully moved and the fixed-point squeezing rate of the body parts is reduced, thereby realizing the purpose of preventing the formation of bedsores in the elderly patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an anti-bedsore protection device for the elderly according to the present invention; Figure 2 This is a schematic structural diagram of the lifting bag and elastic rubber pad of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the local enlarged structure at A in the middle; Figure 4 This is a schematic structural diagram of the rubber roller and the liquid storage tank of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the local enlarged structure at B in the middle; Figure 6 It is a structural schematic diagram of the guard frame and the handrail block frame of the present invention; Figure 7 This is a schematic structural diagram of the massage ball and hollow shaft of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the local enlarged structure at point C in the middle.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Bed frame; 2. Guard frame; 3. First motor; 4. Turning roller; 5. Water-filled cushion; 6. Elastic rubber cushion; 7. Lifting bag; 8. Dehumidification hole; 9. Pressure control pump; 10. First linear transmission module; 11. Second linear transmission module; 12. Universal caster; 13. Single-chip microcomputer; 14. Arm adjustment push rod; 15. Guide roller; 16. Armrest stop frame; 17. Liquid storage tank; 18. Liquid inlet pipe; 19. Liquid return pipe; 20. Massage frame; 21. Camshaft; 22. Cam massage block; 23. Massage ball; 24. Drive shaft; 25. Second motor; 26. Hollow shaft; 27. Differential shaft; 28. Fan; 29. Hot air nozzle; 30. Moving frame; 31. Lifting frame; 32. Lifting push rod; 33. Rubber roller. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] like Figure 1-8 As shown, a protective device for preventing bedsores for the elderly includes a bed frame 1 on which two angle-adjustable guard frames 2 are mounted; A turning roller 4 driven by a first motor 3 is rotatably connected between the inner surfaces of the two guard frames 2. A water-filled cushion 5 is wound between the two turning rollers 4. A temperature control component connected to the water-filled cushion 5 is installed on the bed frame 1. Two sets of symmetrically arranged universal casters 12 are installed on the bottom surface of the bed frame 1, a single-chip computer 13 is installed on the bed frame 1, two guard frames 2 are hinged to the bed frame 1, and a set of arm adjustment push rods 14 are hinged between the two guard frames 2 and the bed frame 1.

[0028] A guide roller 15 is rotatably connected to each of the two bed frames 1, and the guide roller 15 is in contact with the water-filled cushion 5. An armrest stop 16 is fixedly mounted on each of the two bed frames 1; When the present invention is used, the relative height difference of the two guard frames 2 or the two turning rollers 4 can be adjusted by the hinged structure setting of the guard frame 2 and the bed frame 1 and the setting of the adjusting arm push rod 14. When the elderly patient needs to turn over to the left, the height of the left turning roller 4 is higher than that of the right turning roller 4. By synchronously controlling the rotation direction and rotation speed of the two turning rollers 4, the water-filled pad 5 rotates to the right, thereby realizing the left turning of the elderly patient. When the elderly patient needs to turn over to the right, the height of the right turning roller 4 is higher than that of the left turning roller 4. By synchronously controlling the rotation direction and rotation speed of the two turning rollers 4, the water-filled pad 5 rotates to the left, thereby realizing the right turning of the elderly patient. By realizing the left and right turning functions, the self-service turning activity of the elderly patient is realized. By realizing the effect of the self-service turning activity, the patient's body parts can be fully moved and the fixed-point squeezing rate of the body parts is reduced, thereby realizing the purpose of preventing bedsores in the elderly patient.

[0029] The present invention also provides the following embodiments: In the first embodiment, the temperature control component includes a liquid storage tank 17 installed on the bed frame 1 and a diversion cavity opened in the two turning rollers 4. The two diversion cavities are connected to the inner cavity of the water-filled cushion 5. The two diversion cavities are respectively connected to the liquid inlet pipe 18 and the liquid return pipe 19. The liquid storage tank 17 is connected to two pump bodies, and the two pump bodies are respectively connected to the liquid inlet pipe 18 and the liquid return pipe 19. An electric heater is installed inside the liquid storage tank 17, and the water-filled cushion 5 is made of silicone.

[0030] When elderly patients use this device, the two pump bodies can be used to control the water volume of the water-filled pad 5 and then the expansion amplitude and softness of the water-filled pad 5. On the other hand, the temperature of the water in the water-filled pad 5 can be adjusted by setting the temperature control component.

[0031] An elastic rubber pad 6 is installed on the bed frame 1 at a position corresponding to the position below the water-filled cushion 5. A group of regularly distributed cushion areas are provided on the elastic rubber pad 6. A lifting bag 7 is installed on each cushion area. Each cushion area is provided with a group of dehumidification holes 8. A pressure-controlled pump 9 is installed on the bed frame 1. The inner cavity of each lifting bag 7 is connected to the pressure-controlled pump 9. A pressure probe and an electromagnetic valve are provided at the connection point between the pressure control pump 9 and each lifting bag 7 . The data end of the pressure probe and the control end of the electromagnetic valve are both data-connected to the single-chip microcomputer 13 .

[0032] When the device is in use, the air pressure probe and the electromagnetic air valve at the connection between the pressure control pump 9 and each lifting bag 7 are set, so that the expansion amplitude of each lifting bag 7 and the layout height of each lifting bag 7 can be independently controlled. By changing the expansion amplitude and layout height of each lifting bag 7, on the one hand, the patient's contour fitting effect can be achieved, thereby improving the patient's comfort. On the other hand, the patient's lying or supine position can be quickly changed. The effect can be quickly switched by the patient's lying or supine position, thereby quickly adjusting the pressure bearing strength and pressure strength of various parts of the patient's body. By cyclically changing the pressure bearing strength and pressure strength of various parts of the patient's body, the probability of the patient's body parts being squeezed for a long time in a fixed or directional manner can be effectively reduced, thereby achieving the prevention of bedsores for elderly patients. At the same time, when the device is in use, the layout height of each lifting bag 7 can be cyclically changed within a set period, thereby achieving the patient's massage purpose through bag pressure. A first linear transmission module 10 and two second linear transmission modules 11 are respectively installed between the inner surfaces of the bed frame 1. The first linear transmission module 10 is transmission-mounted with a cam massage component, and the two second linear transmission modules 11 are transmission-connected with a standing component.

[0033] The cam massage component includes a massage frame 20 and a drive module. The massage frame 20 is slidably connected to the bed frame 1. The massage frame 20 is driven by the first linear transmission module 10. A camshaft 21 is rotatably connected between the inner surfaces of the massage frame 20. The camshaft 21 is driven by the drive module. Two groups of symmetrically arranged cam massage blocks 22 are installed on the camshaft 21. The installation angle of each cam massage block 22 on the camshaft 21 is different. A group of regularly distributed massage balls 23 are embedded in the outer ring surface of the cam massage block 22, and an air guide component is provided inside the camshaft 21.

[0034] Example 2, as an implementation method, the driving module includes a transmission shaft 24 rotatably connected to the inner surface of the bed frame 1, a second motor 25 is installed on the bed frame 1, and the output shaft end of the second motor 25 is fixedly connected to the transmission shaft 24, and a hollow shaft 26 is rotatably installed on the inner wall of the massage frame 20. The interior of the hollow shaft 26 is fixed with a hollow groove with openings at both ends and slidingly connected to the transmission shaft 24. The cross-sections of the hollow groove and the transmission shaft 24 are both regular polygons. A differential shaft 27 is rotatably installed on the massage frame 20, and a bevel gear is installed on the differential shaft 27 and the hollow shaft 26. The two bevel gears are engaged with each other, and the differential shaft 27 is connected to the camshaft 21 through a belt.

[0035] The air guide assembly includes a fan 28 installed on the massage frame 20. A filter is installed at the air inlet port of the fan 28. An air distribution channel is provided in the camshaft 21. The air outlet port of the fan 28 is connected to the air distribution channel through a pipe. A plurality of groups of regularly distributed hot air nozzles 29 are provided on the camshaft 21, and each hot air nozzle 29 is connected to the air distribution channel.

[0036] When the device is in use, when it is necessary to massage a specified part of the patient's body, first, under the driving action of the first linear transmission module 10, the massage frame 20 moves to a position matching the part to be massaged, and then the second motor 25 outputs the speed at the set power. After the second motor 25 outputs the speed, the multiple cam massage blocks 22 and massage balls 23 are set to achieve cam massage of the specified part of the patient's body. The cam massage effect is achieved to promote the patient's blood circulation, and the promotion of blood circulation is used to achieve the purpose of preventing the formation of bedsores in the patient. When the cam massage component is working, the fan 28 can discharge air at a constant temperature. The constant temperature discharge of the fan 28 reduces the moisture content of the patient's skin. By reducing the moisture content of the patient's skin, the purpose of ventilation, dehumidification and preventing the formation of bedsores in the patient is achieved.

[0037] The raising part includes a moving frame 30 and a raising frame 31. The moving frame 30 is connected to a second linear transmission module 11 for transmission. The moving frame 30 is slidably connected to the bed frame 1. A group of lifting push rods 32 are installed between the moving frame 30 and the raising frame 31. A rubber roller 33 is rotatably installed between the inner surface of the raising frame 31. The rubber roller 33 is made of rubber, and the axis of the rubber roller 33 is perpendicular to the axis of the turning roller 4.

[0038] The two rising parts are respectively arranged on both sides of the cam massage part, and the cam massage block 22 and the rubber roller 33 are both arranged below the elastic rubber pad 6.

[0039] During use, the layout heights of the two rubber rollers 33 can be adjusted independently through the setting of the two rising parts. After the layout heights of the two rubber rollers 33 are changed independently, the layout shapes of the elastic rubber pad 6 and the water-filled pad 5 are changed accordingly, thereby achieving the purpose of assisting the patient to stand up or assisting in changing the patient's lying position and body posture.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for preventing bedsores for the elderly, comprising a bed frame (1), two angle-adjustable guard frames (2) being mounted on the bed frame (1), a turning roller (4) driven by a first motor (3) being rotatably connected between the inner surfaces of the two guard frames (2), and characterized in that: A water-filled pad (5) is wound between the two turning rollers (4), a temperature control component connected to the water-filled pad (5) is installed on the bed frame (1), an elastic rubber pad (6) is installed on the bed frame (1) and at a position corresponding to the bottom of the water-filled pad (5), a group of regularly distributed pad areas are provided on the elastic rubber pad (6), each of the pad areas is installed with a lifting bag (7), and each of the pad areas is provided with a group of dehumidification holes (8), a pressure control pump (9) is installed on the bed frame (1), and the inner cavity of each lifting bag (7) is connected to the pressure control pump (9), and a first linear transmission module (10) and two second linear transmission modules (11) are respectively installed between the inner surfaces of the bed frame (1), the first linear transmission module (10) is provided with a cam massage component, and the two second linear transmission modules (11) are both connected with a standing component.

2. The device for preventing bedsores for the elderly according to claim 1, characterized in that: The bottom surface of the bed frame (1) is provided with two sets of symmetrically arranged universal casters (12), a single chip computer (13) is provided on the bed frame (1), the two guard frames (2) are hinged to the bed frame (1), and a set of arm adjustment push rods (14) are hinged between the two guard frames (2) and the bed frame (1).

3. The device for preventing bedsores for the elderly according to claim 1, characterized in that: A guide roller (15) is rotatably connected to each of the two bed frames (1), and the guide roller (15) is in contact with the water-filled cushion bag (5). An armrest stop frame (16) is fixedly mounted on each of the two bed frames (1).

4. The device for preventing bedsores for the elderly according to claim 1, characterized in that: A pressure probe and an electromagnetic valve are provided at the connection point between the pressure control pump (9) and each lifting bag (7), and the data end of the pressure probe and the control end of the electromagnetic valve are both data-connected to the single-chip microcomputer (13).

5. The device for preventing bedsores for the elderly according to claim 1, characterized in that: The temperature control assembly includes a liquid storage tank (17) mounted on the bed frame (1) and a guide cavity opened in the two turning rollers (4), the two guide cavities are both connected to the inner cavity of the water-filled cushion bag (5), the two guide cavities are respectively connected to a liquid inlet pipe (18) and a liquid return pipe (19), and the liquid storage tank (17) is connected to two pump bodies; The cam massage component includes a massage frame (20) and a drive module. The massage frame (20) is slidably connected to the bed frame (1). The massage frame (20) is driven by a first linear transmission module (10). A cam shaft (21) is rotatably connected between the inner surfaces of the massage frame (20). The cam shaft (21) is driven by the drive module. Two groups of symmetrically arranged cam massage blocks (22) are installed on the cam shaft (21). The installation angle of each cam massage block (22) on the cam shaft (21) is different. A group of regularly distributed massage balls (23) are embedded in the outer annular surface of the cam massage block (22). An air guide component is provided in the cam shaft (21). The driving module includes a transmission shaft (24) rotatably connected to the inner surface of the bed frame (1), a second motor (25) is installed on the bed frame (1), and the output shaft end of the second motor (25) is fixedly connected to the transmission shaft (24), and a hollow shaft (26) is rotatably installed on the inner wall of the massage frame (20), and a hollow groove with two ends opened and slidably connected to the transmission shaft (24) is fixedly opened inside the hollow shaft (26), and the cross-sections of the hollow groove and the transmission shaft (24) are both regular polygons. A differential shaft (27) is rotatably installed on the massage frame (20), and a bevel gear is installed on the differential shaft (27) and the hollow shaft (26), and the two bevel gears are meshed with each other. The differential shaft (27) is connected to the camshaft (21) through a belt. The air guide assembly includes a fan (28) installed on the massage frame (20), an air inlet port of the fan (28) is installed with a filter, an air distribution channel is provided in the camshaft (21), an air outlet port of the fan (28) is connected to the air distribution channel through a pipe, and a plurality of groups of regularly distributed hot air nozzle holes (29) are provided on the camshaft (21), and each of the hot air nozzle holes (29) is connected to the air distribution channel.

6. The device for preventing bedsores for the elderly according to claim 5, characterized in that: The two pump bodies are respectively connected to the liquid inlet pipe (18) and the liquid return pipe (19); an electric heater is installed inside the liquid storage tank (17); and the water-filled cushion bag (5) is made of silica gel.

7. The device for preventing bedsores for the elderly according to claim 5, characterized in that: The raising component comprises a moving frame (30) and a raising frame (31), wherein the moving frame (30) is in transmission connection with a second linear transmission module (11), the moving frame (30) is in sliding connection with the bed frame (1), and a group of lifting push rods (32) are installed between the moving frame (30) and the raising frame (31).

8. The device for preventing bedsores for the elderly according to claim 7, characterized in that: A rubber roller (33) is rotatably mounted between the inner surfaces of the lifting frame (31), the rubber roller (33) being made of rubber, and the axis of the rubber roller (33) being perpendicular to the axis of the turning roller (4).

9. The device for preventing bedsores for the elderly according to claim 8, characterized in that: The two rising components are respectively arranged on both sides of the cam massage component, and the cam massage block (22) and the rubber roller (33) are both arranged below the elastic rubber pad (6).

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