Intelligent control ventilation type nursing bed capable of preventing bedsore growth

Abstract

The invention provides an intelligent control ventilation type nursing bed capable of preventing bedsore growth, and relates to the field of nursing equipment. The nursing bed comprises a bed board and two mounting frames, a pressure sensor and a plurality of humidity sensors are mounted at the top of the bed board, a plurality of exhaust holes are formed in the top and the bottom of the bed board, an outer sleeve is arranged on the outer side of the bed board in a sleeving mode, and a plurality of hook-and-loop fasteners are fixedly connected to the top and the bottom of the outer sleeve. A rotation driving structure is arranged between the outer sleeve and the bed board, a numerical value detected by the pressure sensor is unchanged, the air heater is automatically controlled to work to generate hot air to dry bedding on the top, and gas agents contained in the hot air sterilize and disinfect the bedding, so that bacterium breeding and bedsore growth caused by moisture of the bedding of a patient are avoided; the back of the patient is automatically disinfected and sterilized, and discomfort and concurrent diseases caused by long-term lying of the patient are reduced.

Description

Technical Field

[0001] The present invention relates to a nursing bed, specifically an intelligent control ventilation nursing bed that can prevent bedsore growth, belonging to the technical field of nursing equipment. Background Art

[0002] With the development of society, humanistic care has become the focus of social attention. The elderly and disabled people have come into the public eye. Ensuring and improving the quality of life of vulnerable groups such as the elderly and disabled people has been increasingly concerned by people from all walks of life in society. Therefore, as the main equipment for the elderly and disabled people to rest, nursing beds have been widely promoted and applied. The main function of a nursing bed is to provide the basic conditions required for patient care, enabling patients to rest and eat in bed, and at the same time, it can also be used for the use of various medical devices.

[0003] However, due to the inconvenient movement of the elderly and disabled people, they will lie in one place without moving for a long time, resulting in poor air permeability of the bedding under long-term pressure, and it is easy to absorb the body fluids of patients and become damp, resulting in hypoxia and high humidity at the position where the patient contacts the bedding, and it is easy to develop bedsores and bacterial infections, affecting the normal life of patients. Summary of the Invention

[0004] To solve the above problems, the present invention is achieved through the following technical solutions: an intelligent control ventilation nursing bed that can prevent bedsore growth, including a bed board and two mounting frames. A pressure sensor and a plurality of humidity sensors are installed on the top of the bed board. A plurality of exhaust holes are opened on both the top and bottom of the bed board. An outer cover is sleeved outside the bed board. A plurality of magic tapes are fixedly connected to both the top and bottom of the outer cover. A rotary drive structure is provided between the outer cover and the bed board. A cavity is opened in the bed board. A hot air blower and a gas guide box are respectively arranged on both sides inside the cavity. A flow guide pipe is fixedly connected between the air outlet end of the hot air blower and the gas guide box. A first electromagnetic valve is fixedly connected to the top of the flow guide pipe. A piston structure is arranged inside the gas guide box. A third electromagnetic valve and a fourth electromagnetic valve are fixedly connected to one side of the gas guide box. One end of the piston structure is fixedly installed with a connecting bent plate. The two ends of the connecting bent plate are respectively fixedly connected with an upper air control plate and a lower air control plate. A plurality of exhaust grooves are opened on the tops of the upper air control plate and the lower air control plate. A three-way valve is arranged at the air inlet end of the hot air blower. An air storage tank is arranged at the bottom of the bed board. A gas guide structure is arranged between the normally closed end of the three-way valve and the air storage tank.

[0005] Preferably, a plurality of support frames are fixedly connected between the two mounting frames. A controller is fixedly connected to one side of one of the support frames. Four buttons are installed on one side of the controller. A plurality of connecting rods are fixedly connected between the mounting frame and the bed board. Guide rings are rotatably sleeved on the outer sides of the plurality of connecting rods.

[0006] Preferably, a plurality of mounting round holes are formed in the top of the bed board, and the plurality of humidity sensors are respectively arranged inside the plurality of mounting round holes. The plurality of humidity sensors are fixedly connected to the bed board. A square groove is formed in the top of the bed board, and the pressure sensor is arranged inside the square groove and fixedly connected to the bed board, so as to avoid large protrusions on the top of the bed board and prevent the humidity sensor and the pressure sensor from causing discomfort to the patient.

[0007] Preferably, the hot air blower is fixedly connected to the bed board, and a connecting pipe is fixedly connected between the hot air blower and the three-way valve. The normal open end of the three-way valve is arranged inside the cavity. After the first electromagnetic valve works and opens, the gas inside the diversion pipe enters the cavity. Therefore, when the hot air blower works, it heats the air inside the cavity, so that the bed board is heated.

[0008] Preferably, the air guiding structure includes an air extraction pipe and an air inlet groove. The air inlet groove is formed on one side of the mounting frame. One end of the air extraction pipe penetrates through the bed board and extends into the air inlet groove, and the outer end of the air extraction pipe is fixedly connected to the mounting frame.

[0009] Preferably, a vertical groove is formed at the bottom of the mounting frame, and the top end of the vertical groove extends into the air inlet groove. A vertical pipe is arranged inside the vertical groove, and the bottom end of the vertical pipe is fixedly connected with a second electromagnetic valve. A bent pipe is fixedly connected between the second electromagnetic valve and the air storage tank. A filter screen is arranged on one side inside the air inlet groove. The filter screen filters the air flow entering the air inlet groove to prevent large particle impurities from entering the air inlet groove. Both the filter screen and the vertical pipe are fixedly connected to the mounting frame.

[0010] Preferably, the air guiding box is fixedly connected to the bed board. The piston structure includes a sliding plate. A transmission rod and two return springs are fixedly connected to one side of the sliding plate. The hot air pushes the sliding plate inside the air guiding box to move. The moving sliding plate pushes the transmission rod fixed on one side to move. One end of the return spring is fixedly connected to the air guiding box. One end of the transmission rod penetrates through the air guiding box and is fixedly connected to the connecting bent plate. The connecting bent plate is pushed to move, and the connecting bent plate drives the fixed upper air control plate and lower air control plate to move.

[0011] Preferably, the rotation driving structure includes a double-shaft motor and two chains. Sprockets are arranged at both ends inside the chains. One of the sprockets is fixedly connected with a transmission shaft inside, and the other sprocket is rotatably connected to the bed board. One end of each of the two transmission shafts is fixedly connected to the two output ends of the double-shaft motor respectively.

[0012] Preferably, an installation groove is formed on one side of the bed board, and the double-shaft motor is arranged inside the installation groove and fixedly connected to the bed board. A support ring is fixedly connected to one side of the sprocket. The two support rings and a plurality of guide rings support the connecting sleeve, and the connecting sleeve stably drives the outer sleeve to rotate outside the bed board.

[0013] Preferably, the two chains are respectively arranged inside the two mounting frames. By setting the chains and the sprockets inside the chains inside the mounting frames, the rotation of the sprockets and chains can be prevented from causing harm to personnel. A connecting sleeve is fixedly connected to one side of the chain. The rotation of the chain drives the outer sleeve to rotate through the connecting sleeve, causing the outer sleeve to rotate outside the bed board. Eventually, the quilts at the top and bottom of the outer sleeve are interchanged. The connecting sleeve is fixedly connected to the outer sleeve.

[0014] The present invention provides an intelligent control ventilation type nursing bed that can prevent the growth of bedsores, and its beneficial effects are as follows:

[0015] 1. For the intelligent control ventilation type nursing bed that can prevent the growth of bedsores, when the humidity detected by a humidity sensor is greater than a preset value, the controller electrically connected to the humidity sensor works to issue an alarm, reminding the user to deal with the wet quilt, ensuring that the patient is promptly and well cared for. After the controller electrically connected to the pressure sensor issues an alarm for a period of time, if the value detected by the pressure sensor remains unchanged, at this time, the controller electrically connected to the pressure sensor operates in the first mode, automatically controlling the hot air blower to work to generate hot air to dry the quilt at the top, and the gas agent contained in the hot air disinfects the quilt, avoiding the growth of bacteria and bedsores caused by the wet quilt for the patient, automatically disinfecting and sterilizing the patient's back, and reducing the discomfort and complications caused by the patient's long-term lying.

[0016] 2. For the intelligent control ventilation type nursing bed that can prevent the growth of bedsores, the rotating drive structure in operation drives the outer sleeve to rotate, interchanging the used quilt at the top of the outer sleeve with the spare quilt at the bottom. The hot air blower in operation heats the extracted gas and then discharges it. Under the action of the continuously incoming hot air into the air guide box, the multiple exhaust slots opened on the lower air control plate remain aligned with the multiple exhaust holes opened at the bottom of the bed board; the hot air continuously entering the cavity through the air guide box and the fourth solenoid valve is discharged through the multiple exhaust slots opened on the lower air control plate and the multiple exhaust holes opened at the bottom of the bed board. The hot air dries the quilt at the bottom of the bed board. During the drying process of the wet quilt, the sterilized and disinfected spare quilt moves to the top of the bed board, and the patient can lie down on the top of the bed board again, reducing the time waste in the process of quilt replacement and treatment, improving the intelligent degree of the ventilation type nursing bed, having strong adaptability, and reducing the physical effort in patient care.

[0017] 3. For the intelligent control ventilation type nursing bed that can prevent the growth of bedsores, the normally open end of the three-way valve arranged at the air inlet of the hot air blower is arranged inside the cavity. After the first solenoid valve works and opens, the gas inside the diversion pipe enters the cavity. Therefore, when the hot air blower works, it heats the air inside the cavity, heating the bed board and reducing the discomfort of the patient. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the bent pipe of the present invention;

[0020] Figure 3 It is a schematic structural diagram of the mounting bracket of the present invention;

[0021] Figure 4 It is a schematic structural diagram of the bed board of the present invention;

[0022] Figure 5 It is a schematic structural diagram of the support ring of the present invention;

[0023] Figure 6 It is a schematic structural diagram of the diversion pipe of the present invention;

[0024] Figure 7 It is a schematic structural diagram of the air guide box of the present invention;

[0025] Figure 8 It is a schematic structural diagram of the connecting pipe of the present invention;

[0026] Figure 9 It is a schematic structural diagram of the air extraction pipe of the present invention;

[0027] Figure 10 It is a schematic structural diagram of the transmission rod of the present invention;

[0028] Figure 11 It is a schematic structural diagram of the connecting bent plate of the present invention.

[0029] Explanation of reference numerals: 1. Mounting bracket; 2. Support frame; 3. Bed board; 4. Connecting rod; 5. Guide ring; 6. Mounting round hole; 7. Humidity sensor; 8. Square groove; 9. Pressure sensor; 10. Exhaust hole; 11. Mounting groove; 12. Biaxial motor; 13. Sprocket; 14. Chain; 15. Support ring; 16. Connecting sleeve; 17. Outer sleeve; 18. Magic tape; 19. Controller; 20. Button; 21. Cavity; 22. Hot air blower; 23. Diversion pipe; 24. First solenoid valve; 25. Connecting pipe; 26. Three-way valve; 27. Air extraction pipe; 28. Air inlet groove; 29. Filter screen; 30. Vertical groove; 31. Vertical pipe; 32. Second solenoid valve; 33. Bent pipe; 34. Gas storage tank; 35. Air guide box; 36. Slide plate; 37. Transmission rod; 38. Return spring; 39. Third solenoid valve; 40. Fourth solenoid valve; 41. Connecting bent plate; 42. Upper air control plate; 43. Lower air control plate; 44. Exhaust groove; 45. Transmission shaft. Detailed implementation manners

[0030] The embodiment of the present invention provides an intelligent control ventilation type nursing bed that can prevent the growth of bedsore.

[0031] Please refer to Figure 1 、 Figure 2, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , including a bed board 3 and two mounting brackets 1. A pressure sensor 9 and a plurality of humidity sensors 7 are mounted on the top of the bed board 3. A plurality of exhaust holes 10 are provided on both the top and bottom of the bed board 3. An outer cover 17 is sleeved outside the bed board 3. A plurality of magic tapes 18 are fixedly connected to both the top and bottom of the outer cover 17. A rotary drive structure is provided between the outer cover 17 and the bed board 3; a cavity 21 is provided in the bed board 3. A hot air blower 22 and an air guide box 35 are respectively provided on both sides inside the cavity 21. A diversion pipe 23 is fixedly connected between the air outlet end of the hot air blower 22 and the air guide box 35. A first solenoid valve 24 is fixedly connected to the top of the diversion pipe 23. A piston structure is provided inside the air guide box 35. A third solenoid valve 39 and a fourth solenoid valve 40 are fixedly connected to one side of the air guide box 35; one end of the piston structure is fixedly installed with a connecting bent plate 41. The two ends of the connecting bent plate 41 are respectively fixedly connected with an upper air control plate 42 and a lower air control plate 43. A plurality of exhaust grooves 44 are provided on the tops of the upper air control plate 42 and the lower air control plate 43; a three-way valve 26 is provided at the air inlet end of the hot air blower 22. An air storage tank 34 is provided at the bottom of the bed board 3. An air guide structure is provided between the normally closed end of the three-way valve 26 and the air storage tank 34.

[0032] Specifically, a plurality of support frames 2 for supporting and contacting the ground are fixedly connected between the two mounting brackets 1. And a plurality of connecting rods 4 are fixedly connected between the bed board 3 and the two mounting brackets 1. The bed board 3 supported by the mounting brackets 1 and the support frames 2 has a certain distance from the ground, providing space for heat dissipation and moisture dissipation. A controller 19 is fixedly connected to one side of a support frame 2. The controller 19 is electrically connected to structures such as the humidity sensor 7, the pressure sensor 9, the biaxial motor 12, the hot air blower 22, the three-way valve 26, the first solenoid valve 24, the third solenoid valve 39, and the fourth solenoid valve 40, and is used to control the operation of the ventilated nursing bed composed of structures such as the bed board 3, the rotary drive structure, the outer cover 17, the biaxial motor 12, the hot air blower 22, the three-way valve 26, the first solenoid valve 24, the third solenoid valve 39, the fourth solenoid valve 40, the piston structure, the air guide box 35, and the air guide structure.

[0033] An outer cover 17 is sleeved outside the bed board 3. And a plurality of magic tapes 18 are fixedly connected to both the top and bottom of the outer cover 17. The user only needs to fix a plurality of magic tapes 18 on the quilt as well, and then the quilt can be installed on the outer cover 17 through the magic tapes 18. After installing the quilt on the top and bottom of the outer cover 17 in sequence, the preparation work for using the ventilated nursing bed is completed. At this time, the pressure sensor 9 detects the initial pressure value.

[0034] After the patient lies on the quilt fixed on the top of the outer cover 17, since the patient is unable to move independently, it will cause the local quilt to become wet quickly under the influence of the patient. A pressure sensor 9 and multiple humidity sensors 7 are installed on the top of the bed board 3. The multiple humidity sensors 7 distributed at multiple positions on the top of the bed board 3 work to detect the humidity at multiple positions of the top quilt. When the humidity detected by a humidity sensor 7 is greater than the preset value, the controller 19 electrically connected to the humidity sensor 7 works to issue an alarm, reminding the user to deal with the wet quilt and ensuring that the patient is taken good care of in a timely manner.

[0035] The weight of the patient presses on the pressure sensor 9. When the pressure detected by the pressure sensor 9 increases, after the controller 19 electrically connected to the pressure sensor 9 issues an alarm for a period of time, if the value detected by the pressure sensor 9 remains unchanged, at this time, the controller 19 electrically connected to the pressure sensor 9 works in the first mode; at this time, the controller 19 controls the hot air blower 22, the three-way valve 26, the second solenoid valve 32 and the third solenoid valve 39 that are electrically connected to work. The normally closed end of the three-way valve 26 works to open. One end of the air extraction pipe 27 fixed to the normally closed end of the three-way valve 26 penetrates through the bed board 3 and then extends into the air intake groove 28 opened on the outside of the mounting frame 1; so at this time, the three-way valve 26 is communicated with the outside through the air extraction pipe 27 and the air intake groove 28. And a connecting pipe 25 is fixedly connected between the hot air blower 22 and the three-way valve 26. Therefore, the working hot air blower 22 extracts external air through the air guiding structure composed of the connecting pipe 25, the three-way valve 26, the air intake groove 28 and other structures.

[0036] And the top end of the vertical groove 30 opened at the bottom of the mounting frame 1 extends into the air intake groove 28. So a vertical pipe 31 is arranged inside the vertical groove 30 and is communicated with the inside of the air intake groove 28. A second solenoid valve 32 is fixedly connected to the bottom end of the vertical pipe 31. And a bent pipe 33 is fixedly connected between the second solenoid valve 32 and the air storage tank 34. So when the second solenoid valve 32 works to open, the gas agent inside the air storage tank 34 is discharged into the air intake groove 28 through the bent pipe 33, the second solenoid valve 32 and the vertical pipe 31. The gas agent and the external air are extracted together by the hot air blower 22, so that the hot air discharged by the hot air blower 22 contains the gas agent.

[0037] The working hot air blower 22 heats the extracted air and transports it into the diversion pipe 23 fixed to the air outlet end. The diversion pipe 23 transports the hot air into the air guiding box 35 fixed at one end, so that the air pressure inside the air guiding box 35 fixedly connected to the bed board 3 increases. The hot air pushes the sliding plate 36 inside the air guiding box 35 to move. The moving sliding plate 36 pushes the transmission rod 37 fixed on one side to move; since one end of the transmission rod 37 penetrates through the air guiding box 35 and is fixedly connected to the connecting bent plate 41, so the connecting bent plate 41 is pushed to move, and the connecting bent plate 41 drives the fixed upper air control plate 42 and the lower air control plate 43 to move.

[0038] When a plurality of exhaust grooves 44 formed in the moving upper air control plate 42 are aligned with a plurality of exhaust holes 10 formed in the top of the bed plate 3, at this time, the sliding plate 36 moves to one side of the third electromagnetic valve 39 which is in the working open state, and the hot air inside the air guide box 35 is discharged into the cavity 21 through the third electromagnetic valve 39. The movement of the sliding plate 36, the transmission rod 37, the connecting bent plate 41, the upper air control plate 42 and the lower air control plate 43 pauses, and a plurality of exhaust grooves 44 formed in the lower air control plate 43 remain staggered from a plurality of exhaust holes 10 at the bottom of the bed plate 3.

[0039] Under the action of the hot air continuously entering the air guide box 35, a plurality of exhaust grooves 44 formed in the upper air control plate 42 remain aligned with a plurality of exhaust holes 10 formed in the top of the bed plate 3. The hot air continuously entering the cavity 21 through the air guide box 35 and the third electromagnetic valve 39 is discharged through a plurality of exhaust grooves 44 formed in the upper air control plate 42 and a plurality of exhaust holes 10 formed in the top of the bed plate 3. The hot air dries the quilt on the top, and the gas agent contained in the hot air sterilizes the quilt, avoiding the bacterial growth and bedsore growth caused by the damp quilt of the patient, automatically disinfecting and sterilizing the patient's back, and reducing the discomfort and complications caused by the patient's long-term lying.

[0040] When the patient leaves the top of the quilt, the pressure value detected by the pressure sensor 9 is close to the initial pressure value due to the change in the weight of the quilt. When the user replaces the quilt, the pressure value detected by the pressure sensor 9 shows the situation of resetting to zero and then approaching the initial pressure value again. At this time, the controller 19 does not control the electrically connected hot air blower 22 to work.

[0041] After the pressure value detected by the pressure sensor 9 remains close to the initial pressure value for a period of time, the controller 19 electrically connected to the pressure sensor 9 operates in the second mode and controls the rotation drive structure to work. The working rotation drive structure drives the outer sleeve 17 to rotate, and exchanges the position of the used quilt on the top of the outer sleeve 17 and the spare quilt at the bottom. The specific steps of the rotation drive structure working are as follows:

[0042] First, the controller 19 controls the electrically connected double-shaft motor 12 to work. Since both ends of the inner part of the two chains 14 are engaged with the sprockets 13, and a transmission shaft 45 is fixedly connected inside one of the sprockets 13 in one of the chains 14, and the other sprocket 13 is rotatably connected to the bed plate 3, the transmission shaft 45, one of the chains 14 and the two sprockets 13 form a sprocket transmission structure; because one end of each of the two transmission shafts 45 is fixedly connected to the two output ends of the double-shaft motor 12 respectively, when the double-shaft motor 12 works, it drives the two transmission shafts 45 fixed to the two output ends to rotate, so that the two sprocket transmission structures work, that is, the chains 14 supported and driven by the two sprockets 13 rotate.

[0043] Moreover, the connecting sleeve 16 fixedly connected to one side of the chain 14 is fixedly connected to the outer sleeve 17. Therefore, when the chain 14 rotates, it drives the outer sleeve 17 to rotate through the connecting sleeve 16, causing the outer sleeve 17 to rotate outside the bed board 3. Finally, the quilts at the top and bottom of the outer sleeve 17 are swapped, and the dual-axis motor 12 stops working.

[0044] Subsequently, the controller 19 operates in the third mode. At this time, the controller 19 controls the hot air blower 22, three-way valve 26, second solenoid valve 32, and fourth solenoid valve 40 that are electrically connected to work. The working hot air blower 22 extracts external air through the air guiding structure composed of the connecting pipe 25, the opened three-way valve 26, the air intake groove 28, and other structures. After the second solenoid valve 32 works and opens, the gas agent inside the gas storage tank 34 is discharged into the air intake groove 28 through the bent pipe 33, the second solenoid valve 32, and the vertical pipe 31. The gas agent and the external air are extracted together by the hot air blower 22, so that the hot air discharged by the hot air blower 22 contains the gas agent.

[0045] The working hot air blower 22 heats the extracted gas and transports it into the deflector pipe 23 fixed to the air outlet end. The deflector pipe 23 transports the hot air into the air guiding box 35 fixed at one end, increasing the air pressure inside the air guiding box 35 fixedly connected to the bed board 3. The sliding plate 36 moves, pushing the transmission rod 37 fixed to one side to move. The transmission rod 37 pushes the connecting bent plate 41 to move, and the connecting bent plate 41 drives the fixed upper air control plate 42 and lower air control plate 43 to move.

[0046] When multiple exhaust grooves 44 opened on the moving lower air control plate 43 are aligned with multiple exhaust holes 10 opened at the bottom of the bed board 3, at this time, the sliding plate 36 moves to one side of the working fourth solenoid valve 40. The hot air inside the air guiding box 35 is discharged into the cavity 21 through the fourth solenoid valve 40. At this time, the movement of the sliding plate 36, transmission rod 37, connecting bent plate 41, upper air control plate 42, and lower air control plate 43 pauses, and multiple exhaust grooves 44 opened on the upper air control plate 42 remain staggered from multiple exhaust holes 10 at the top of the bed board 3.

[0047] Under the action of the continuously incoming hot air into the air guiding box 35, multiple exhaust grooves 44 opened on the lower air control plate 43 remain aligned with multiple exhaust holes 10 opened at the bottom of the bed board 3; the hot air continuously entering the cavity 21 through the air guiding box 35 and the fourth solenoid valve 40 is discharged through multiple exhaust grooves 44 opened on the lower air control plate 43 and multiple exhaust holes 10 opened at the bottom of the bed board 3. The hot air dries the quilt at the bottom of the bed board 3, and the gas agent contained in the hot air disinfects the quilt. During the drying process of the damp quilt, the spare quilt after disinfection treatment moves to the top of the bed board 3, and the patient can lie back on the top of the bed board 3 again, reducing the time waste in the process of quilt replacement, improving the intelligent level of the ventilation type nursing bed, having strong adaptability, and reducing the physical input of patient care.

[0048] In addition, as Figure 1 shown, four buttons 20 are installed on one side of the controller 19. The four buttons 20 respectively correspond to the first-mode operation, second-mode operation, third-mode operation, and fourth-mode operation of the controller 19. The user can press the corresponding button 20 to make the controller 19 control the ventilated nursing bed to perform corresponding operations, reducing time waste.

[0049] After pressing the button 20 that controls the controller 19 to perform the fourth-mode operation, the controller 19 controls the electrically connected hot air blower 22 and the first electromagnetic valve 24 to work. Since the normally open end of the three-way valve 26 provided at the air inlet of the hot air blower 22 is arranged inside the cavity 21, and the gas inside the diversion pipe 23 enters the cavity 21 after the first electromagnetic valve 24 works and opens, the hot air blower 22 works to heat the air inside the cavity 21, so that the bed board 3 is heated, reducing the discomfort of the patient.

[0050] In addition, as Figure 10 shown, two return springs 38 are fixedly connected to one side of the sliding plate 36, and one end of the return spring 38 is fixedly connected to the air guide box 35. Therefore, when the hot air blower 22 stops working and stops supplying air to the air guide box 35, the rebounding return spring 38 pushes the sliding plate 36 to reset, preparing for the next operation.

[0051] In addition, as Figure 3 shown, two chains 14 are respectively arranged inside two mounting frames 1. The chains 14 and the sprockets 13 inside the chains 14 are arranged inside the mounting frames 1 to prevent the rotation of the sprockets 13 and the chains 14 from causing harm to personnel.

[0052] In addition, as Figure 5 shown, a mounting groove 11 is formed on one side of the bed board 3, and the double-shaft motor 12 is installed inside the mounting groove 11. The double-shaft motor 12 is fixedly connected to the bed board 3, so that the distances from the two output ends of the double-shaft motor 12 to the two sprockets 13 are the same, ensuring uniform force on the double-shaft motor 12 and guaranteeing the service life of the double-shaft motor 12.

[0053] In addition, as Figure 3 and Figure 5 shown, guide rings 5 are rotatably sleeved on the outside of multiple connecting rods 4. A support ring 15 is fixedly connected to one side of the sprocket 13. The connecting sleeve 16 is supported by the two support rings 15 and the multiple guide rings 5, so that the connecting sleeve 16 rotates along the track formed by the two support rings 15 and the multiple guide rings 5, ensuring that the connecting sleeve 16 stably drives the outer sleeve 17 to rotate outside the bed board 3.

[0054] In addition, as Figure 3As shown in the figure, a plurality of mounting round holes 6 are formed in the top of the bed board 3. After the plurality of humidity sensors 7 are respectively arranged inside the plurality of mounting round holes 6, the humidity sensors 7 are fixedly installed together with the bed board 3. Similarly, a square groove 8 is formed in the top of the bed board 3, and the pressure sensor 9 is arranged inside the square groove 8 and fixedly connected with the bed board 3, which can avoid large protrusions on the top of the bed board 3 and prevent the humidity sensor 7 and the pressure sensor 9 from causing discomfort to the patient.

[0055] In addition, as Figure 9 shown, a filter screen 29 is arranged on one side inside the air inlet groove 28. The filter screen 29 fixedly connected with the mounting frame 1 filters the air flow entering the inside of the air inlet groove 28, preventing large particle impurities from entering the inside of the air inlet groove 28 and avoiding pollution and wear of the hot air blower 22 caused by large particle impurities.

Claims

1. An intelligent control ventilated nursing bed capable of preventing bedsore growth, comprising a bed board (3) and two mounting frames (1), characterized in that: A pressure sensor (9) and multiple humidity sensors (7) are installed on the top of the bed board (3). Multiple exhaust holes (10) are provided on both the top and bottom of the bed board (3). An outer cover (17) is sleeved outside the bed board (3). A plurality of magic tapes (18) are fixedly connected to both the top and bottom of the outer cover (17). A rotary drive structure is provided between the outer cover (17) and the bed board (3). A cavity (21) is formed in the bed board (3). A hot air blower (22) and an air guide box (35) are respectively arranged on both sides inside the cavity (21). A diversion pipe (23) is fixedly connected between the air outlet end of the hot air blower (22) and the air guide box (35). A first electromagnetic valve (24) is fixedly connected to the top of the diversion pipe (23). A piston structure is arranged inside the air guide box (35). A third electromagnetic valve (39) and a fourth electromagnetic valve (40) are fixedly connected to one side of the air guide box (35). One end of the piston structure is fixedly installed with a connecting bent plate (41). The two ends of the connecting bent plate (41) are respectively fixedly connected with an upper air control plate (42) and a lower air control plate (43). A plurality of exhaust grooves (44) are formed on the tops of the upper air control plate (42) and the lower air control plate (43). A three-way valve (26) is arranged at the air inlet end of the hot air blower (22). An air storage tank (34) is arranged at the bottom of the bed board (3). An air guide structure is arranged between the normally closed end of the three-way valve (26) and the air storage tank (34).

2. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 1, wherein: A plurality of support frames (2) are fixedly connected between the two mounting frames (1). A controller (19) is fixedly connected to one side of one of the support frames (2). Four buttons (20) are installed on one side of the controller (19). A plurality of connecting rods (4) are fixedly connected between the mounting frame (1) and the bed board (3). Guide rings (5) are rotatably sleeved on the outer sides of the plurality of connecting rods (4).

3. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 1, characterized in that: A plurality of mounting round holes (6) are formed on the top of the bed board (3). The plurality of humidity sensors (7) are respectively arranged inside the plurality of mounting round holes (6). The plurality of humidity sensors (7) are fixedly connected to the bed board (3). A square groove (8) is formed on the top of the bed board (3). The pressure sensor (9) is arranged inside the square groove (8) and fixedly connected to the bed board (3).

4. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 1, wherein: The hot air blower (22) is fixedly connected to the bed board (3). A connecting pipe (25) is fixedly connected between the hot air blower (22) and the three-way valve (26). The normally open end of the three-way valve (26) is arranged inside the cavity (21).

5. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 1, wherein: The air guide structure includes an air extraction pipe (27) and an air inlet groove (28). The air inlet groove (28) is formed on one side of the mounting frame (1). One end of the air extraction pipe (27) penetrates through the bed board (3) and extends into the air inlet groove (28). The outer end of the air extraction pipe (27) is fixedly connected to the mounting frame (1).

6. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 5, wherein: The bottom of the mounting frame (1) is provided with a vertical groove (30), the top end of the vertical groove (30) extends into the air inlet groove (28), a vertical pipe (31) is arranged inside the vertical groove (30), a second solenoid valve (32) is fixedly connected to the bottom end of the vertical pipe (31), a bent pipe (33) is fixedly connected between the second solenoid valve (32) and the air storage tank (34), a filter screen (29) is arranged on one side inside the air inlet groove (28), and both the filter screen (29) and the vertical pipe (31) are fixedly connected to the mounting frame (1).

7. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 1, wherein: The air guide box (35) is fixedly connected to the bed board (3), the piston structure includes a sliding plate (36), a transmission rod (37) and two return springs (38) are fixedly connected to one side of the sliding plate (36), one end of the return spring (38) is fixedly connected to the air guide box (35), and one end of the transmission rod (37) penetrates through the air guide box (35) and is fixedly connected to the connecting bent plate (41).

8. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 1, characterized in that: The rotation driving structure includes a double-shaft motor (12) and two chains (14), sprockets (13) are arranged at both ends inside the chain (14), a transmission shaft (45) is fixedly connected inside one of the sprockets (13), the other sprocket (13) is rotatably connected to the bed board (3), and one end of each of the two transmission shafts (45) is fixedly connected to two output ends of the double-shaft motor (12).

9. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 8, characterized in that: An installation groove (11) is formed on one side of the bed board (3), the double-shaft motor (12) is arranged inside the installation groove (11), the double-shaft motor (12) is fixedly connected to the bed board (3), and a support ring (15) is fixedly connected to one side of the sprocket (13).

10. The intelligent control ventilated nursing bed capable of preventing bedsore growth according to claim 8, characterized in that: The two chains (14) are respectively arranged inside the two mounting frames (1), a connecting sleeve (16) is fixedly connected to one side of the chain (14), and the connecting sleeve (16) is fixedly connected to the outer sleeve (17).

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