Anti-bedsore growth protection device for nursing of old people

Abstract

The invention discloses an anti-bedsore growth protection device for old people nursing, and relates to the technical field of nursing equipment.The anti-bedsore growth protection device comprises a fixing plate and further comprises a nursing assembly and a massage mechanism, bases are fixedly connected to the periphery of the upper surface of the fixing plate, and a guide groove is formed in the top end of each base; a limiting pin is fixedly connected to the inner contour of each guide groove, a fixing base is fixedly connected to the center of the top end of the fixing plate, and an output shaft driven by a motor penetrates through the top end of the fixing base. By arranging the turnover mechanism, the body position of the elderly patient can be adjusted according to a fixed sequence; by arranging the control mechanism, the body position adjusting sequence in the scheme is fixed to be a supine-left lying-right lying alternating mode; by arranging the massage mechanism, the pressure surface is synchronously massaged in a reciprocating manner when the body position of the elderly patient is adjusted.

Description

Technical Field

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

[0002] Bedsores, also known as pressure sores or pressure injuries, are caused by prolonged pressure on localized tissue, leading to obstructed blood circulation, ischemia and hypoxia, and consequently damage, necrosis, and even ulceration of the skin and subcutaneous tissue. These conditions are common in people who are bedridden, wheelchair-bound, or have limited mobility. To prevent bedsores, bedridden patients should be turned regularly to change the pressure surface, their skin should be kept clean and dry, and they should be encouraged to exercise to promote blood circulation. For those unable to move independently, limb massage should also be performed.

[0003] After searching, the Chinese patent with publication number CN114469579A includes a frame, a movable cavity is provided in the frame, a plurality of undulating shafts are arranged and installed in the movable cavity, and a plurality of ventilation holes are provided on the undulating shafts; both ends of the frame are provided with mounting cavities, a first movable mechanism is provided in the mounting cavity, the first movable mechanism includes a first rotating wheel, and a second movable mechanism is also provided in the mounting cavity, the second movable mechanism includes a second rotating wheel, and a lifting bar is connected to the bottom of each end of the undulating shaft, the lifting bar is fixedly connected to the undulating shaft through a connecting shaft, and the second rotating wheel and the first rotating wheel are both used to push the connecting shaft. This device moves up and down with the undulating shaft, allowing the elderly to move their bodies. The various ventilation holes on the undulating shaft allow the cooling fan to rotate, dissipating heat and ventilating the bedding, thereby reducing the occurrence of bedsores.

[0004] However, the above solution lacks the function of assisting elderly patients in turning over. In essence, the pressure surface of elderly patients does not change while they are in bed. The backs of elderly patients are continuously under pressure while they are in bed, and there is still a risk of bedsores. At the same time, it is difficult for medical staff to directly wipe and clean the patient's back and apply medicine. On the other hand, the above solution drives the patient's body movement through ups and downs pressing, and its range of movement is limited, making it difficult to achieve the expected massage effect. At the same time, there is a risk of the bed sheet being rolled up in the gaps of the structure, which may cause damage to the device. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for preventing bedsore growth for elderly care, which has the advantages of assisting turning over and synchronous massage, and solves the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for preventing bedsore growth for elderly care, comprising a fixing plate, a care component, and a massage mechanism; bases are fixedly connected to the four sides of the upper surface of the fixing plate; a guide groove is defined at the top of each base; a limit pin is fixedly connected to the inner contour of each guide groove; a fixing seat is fixedly connected to the center of the top of the fixing plate; an output shaft driven by a motor is penetrated through the top of the fixing seat;

[0007] The nursing component includes a turning mechanism for adjusting the patient's body position and a control mechanism for limiting the turning order, the control mechanism includes a fixed platform arranged on one side of the fixed plate, and the turning mechanism includes a bed plate arranged above the fixed plate;

[0008] The massage mechanism includes a screw rod for promoting the patient's blood circulation. Two screw rods are provided and respectively pass through the interior of both sides of the bed board.

[0009] Preferably, the fixed platform and the fixed plate are fixedly connected and both are fixedly set on the ground, a driving shaft is passed through the center of the fixed platform, the top end of the driving shaft is fixedly connected to a bevel gear disk, the upper surface of the bevel gear disk is intermittently meshed and connected to transmission gear 1 and transmission gear 2, and the transmission gear 1 and transmission gear 2 are both passed through and fixedly connected to the output shaft.

[0010] Preferably, the transmission gear 1 and the transmission gear 2 are respectively located on both sides of the upper surface of the bevel gear disk, and the tooth curvature of the upper surface of the bevel gear disk is set to one hundred and eighty degrees.

[0011] Preferably, the control mechanism further comprises an annular ring placed on the upper surface of the fixed platform, with extension rods fixedly connected to both sides of the annular ring, a sliding limit ring passing through the outer contour of the extension rod, and the limit rings fixedly connected to both ends of the upper surface of the fixed platform, racks are provided on both sides of the inner contour of the middle section of the annular ring, a half gear is passed through and fixed on the outer contour of the drive shaft, and the half gear is intermittently meshed and transmission-connected to the rack;

[0012] The ends of the two extension rods away from the annular ring are fixedly connected to the positioning rods, the upper surfaces of the two positioning rods away from the ends of the extension rods are fixedly connected to the guardrails, and the surfaces of the two positioning rods close to the annular ring are fixedly connected to the telescopic rods, and a positioning platform is sliding through the outer contour of each telescopic rod, and side panels are fixedly connected between the positioning platforms on both sides of the fixed seat.

[0013] Preferably, the number of the positioning platforms corresponds to the base, and each positioning platform is fixedly connected to the top of the base at a corresponding position.

[0014] Preferably, the bed board is at the same height as the side board, and both ends of the middle section of the bed board are fixedly connected with positioning shafts, and the outer contours of the two positioning shafts are transmission-connected with connecting rods, and the other ends of the two connecting rods are penetrated and transmission-connected with the output shafts, and speed increasers are provided around the bed board, and each end face of the speed increaser away from the bed board is provided with a positioning pin, and each positioning pin fits into the guide groove of the corresponding position and is engaged with the limit pin of the corresponding position.

[0015] Preferably, threaded sleeves are screwed onto the outer contours of the two screw rods, and a guide plate that passes through the bed board is fixedly connected to the side of the threaded sleeve pointing to the middle section of the bed board. A massage pad is fixedly connected to the top of the guide plate, and the top of the massage pad is in contact with the lower surface of the bed board.

[0016] Preferably, the two screw rods both pass through the speed increasers at corresponding positions and realize transmission connection with the positioning pins at corresponding positions through the speed increasers.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with a turnover mechanism, which can adjust the body position of elderly patients in a fixed order to relieve the long-term pressure on the patient's back, thereby achieving the purpose of preventing bedsores.

[0019] 2. The present invention sets a control mechanism to fix the order of body position adjustment in the scheme to alternating between supine-left side-right side, further reducing the number of operating steps and difficulty in the body position adjustment process, and effectively reducing the nursing pressure of medical staff.

[0020] 3. The present invention provides a massage mechanism to perform reciprocating massage on the pressure surface when the elderly patient adjusts his / her body position, thereby promoting the patient's blood circulation and further ensuring the pressure sore prevention effect of the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 This is a cross-sectional view of the main structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the base structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the connection relationship of the control mechanism of the present invention;

[0025] Figure 5 It is a partial exploded view of the control mechanism of the present invention;

[0026] Figure 6 It is a partial schematic diagram of the control mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection relationship of the flip mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the flipping mechanism of the present invention;

[0029] Figure 9 It is a schematic diagram of the massage mechanism of the present invention.

[0030] In the figure: 1. Fixed plate; 11. Fixed seat; 12. Output shaft; 13. Base; 14. Guide groove; 15. Limit pin; 2. Fixed platform; 21. Drive shaft; 22. Bevel gear; 23. Transmission gear 1; 24. Transmission gear 2; 3. Annular ring; 31. Extension rod; 32. Limit ring; 33. Rack; 34. Half gear; 35. Positioning rod; 36. Telescopic rod; 37. Positioning platform; 38. Guardrail; 39. Side panel; 4. Bed board; 41. Positioning shaft; 42. Connecting rod; 43. Speed ​​increaser; 44. Positioning pin; 5. Screw; 51. Threaded sleeve; 52. Guide plate; 53. Massage cushion. DETAILED DESCRIPTION

[0031] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] Example 1:

[0033] See also Figures 1 to 9 The present invention provides a technical solution: a device for preventing bedsore growth for elderly care, comprising a fixing plate 1, a care component and a massage mechanism. Bases 13 are fixedly connected to the four sides of the upper surface of the fixing plate 1. A guide groove 14 is formed at the top of each base 13. A limit pin 15 is fixedly connected to the inner contour of each guide groove 14. A fixing seat 11 is fixedly connected to the center of the top of the fixing plate 1. An output shaft 12 driven by a motor is passed through the top of the fixing seat 11.

[0034] The nursing component includes a turning mechanism for adjusting the patient's body position and a control mechanism for limiting the turning order, the control mechanism includes a fixed platform 2 arranged on one side of the fixed plate 1, and the turning mechanism includes a bed plate 4 arranged above the fixed plate 1;

[0035] The massage mechanism includes a screw rod 5 for promoting the patient's blood circulation. Two screw rods 5 are provided and respectively pass through the interior of both sides of the bed board 4.

[0036] In this solution, the fixed plate 1 and the turning mechanism together constitute the bed body of the nursing bed. The elderly patient lies on his back on the turning mechanism. The fixed seat 11 provides a limit for the output shaft 12. The output shaft 12 is driven by the control mechanism, further driving the turning mechanism to operate to assist the elderly patient in turning over, and realizes the pressure sore prevention function by changing the pressure surface of the patient while lying in bed; the base 13 and the guide groove 14 synchronously limit the patient's position adjustment process; the limit pin 15 further controls the synchronous operation of the massage mechanism, and massages the pressure surface of the patient when lying on his side during the position adjustment process to promote blood circulation.

[0037] It should be noted that during the operation of the device, the input direction of the control mechanism is always fixed to counterclockwise rotation, while the output direction of the control mechanism controls the movement direction of the flipping mechanism, that is, the turning direction of the elderly patient, and the output direction can be automatically adjusted during the operation of the control mechanism. Therefore, the scheme can realize the function of body position adjustment in a fixed sequence, without the need for personnel to additionally control the patient's turning direction, thereby effectively reducing the operation workload of nursing staff and improving the auxiliary nursing efficiency of the scheme.

[0038] Example 2:

[0039] Please refer to 4- Figure 6 This embodiment further explains the following based on the first embodiment: the fixed platform 2 and the fixed plate 1 are fixedly connected and both are fixedly set on the ground. A drive shaft 21 is passed through the center of the fixed platform 2. The top end of the drive shaft 21 is fixedly connected to a bevel gear disk 22. The upper surface of the bevel gear disk 22 is intermittently meshed and connected to a transmission gear 1 23 and a transmission gear 2 24. The transmission gear 1 23 and the transmission gear 2 24 are both passed through and fixedly connected to the output shaft 12.

[0040] The transmission gear 1 23 and the transmission gear 2 24 are respectively located on both sides of the upper surface of the bevel gear disc 22 , and the tooth curvature of the upper surface of the bevel gear disc 22 is set to 180 degrees.

[0041] The control mechanism also includes an annular ring 3 placed on the upper surface of the fixed platform 2. Extension rods 31 are fixedly connected to both sides of the annular ring 3. A sliding limit ring 32 passes through the outer contour of the extension rod 31. The limit ring 32 is fixedly connected to both ends of the upper surface of the fixed platform 2. Racks 33 are provided on both sides of the inner contour of the middle section of the annular ring 3. A half gear 34 is fixedly passed through the outer contour of the drive shaft 21. The half gear 34 is intermittently meshed and transmission-connected to the rack 33.

[0042] The two extension rods 31 are fixedly connected to the positioning rod 35 at one end away from the annular ring 3, and the upper surfaces of the two positioning rods 35 at one end away from the extension rod 31 are fixedly connected to the guardrail 38. The surfaces of the two positioning rods 35 close to the annular ring 3 are fixedly connected to the telescopic rod 36. A positioning platform 37 slides through the outer contour of each telescopic rod 36, and a side plate 39 is fixedly connected between the positioning platforms 37 located on both sides of the fixed seat 11.

[0043] The number of the positioning platforms 37 corresponds to the number of the base 13 , and each positioning platform 37 is fixedly connected to the top of the base 13 at the corresponding position.

[0044] As can be seen from the first embodiment, the control mechanism provides a power source for the flip mechanism and limits the movement direction of the flip mechanism. Figure 4 and Figure 5 For example, when the device needs to be operated, the starting motor drives the drive shaft 21 to rotate counterclockwise. At this time, since the bevel gear 22 is fixedly connected to the drive shaft 21, the bevel gear 22 rotates counterclockwise synchronously. Because the transmission gear 1 23 and the transmission gear 2 24 are in an intermittent meshing connection state with the bevel gear 22, Figure 5 It can be seen that in the initial state, when the driving shaft 21 has not started to rotate, the transmission gear 1 23 is engaged with the middle section of the arc-shaped teeth on the upper surface of the bevel gear plate 22. Since the curvature of the teeth is set to 180 degrees, at the beginning, when the bevel gear plate 22 rotates 90 degrees counterclockwise along with the driving shaft 21, the transmission gear 1 23 rotates 90 degrees counterclockwise synchronously. After the bevel gear plate 22 rotates 90 degrees along with the driving shaft 21, the bevel gear plate 22 is disengaged from the transmission gear 1 23 and engages with the transmission gear 2 24. Thereafter, when the bevel gear plate 22 rotates 180 degrees counterclockwise along with the driving shaft 21, the transmission gear 2 24 rotates 180 degrees clockwise synchronously. Then the bevel gear plate 22 is disengaged from the transmission gear 2 24 and engages with the transmission gear 1 23 again. Thereafter, when the bevel gear plate 22 rotates 90 degrees counterclockwise along with the driving shaft 21, the transmission gear 1 23 rotates 90 degrees counterclockwise synchronously.

[0045] Since the transmission gear 1 23 and the transmission gear 2 24 are both fixedly connected to the output shaft 12, the motion states of the transmission gear 1 23 and the transmission gear 2 24 are synchronized to the output shaft 12, that is, when the motor controls the drive shaft 21 to rotate one circle, the output shaft 12 first rotates 90 degrees counterclockwise along with the transmission gear 1 23, then rotates 180 degrees clockwise along with the transmission gear 2 24, and then rotates 90 degrees counterclockwise along with the transmission gear 1 23. At this time, the output shaft 12 and the bevel gear disk 22 are both reset to their initial states.

[0046] Because the turning mechanism is connected to the output shaft 12 by transmission, the rotation state of the output shaft 12 directly controls the movement direction of the turning mechanism. Figure 1For example, when the output shaft 12 rotates counterclockwise, the flip mechanism flips to the left, and the patient is adjusted from the supine position to the left side position. When the output shaft 12 rotates clockwise, the flip mechanism flips to the right, and the patient is adjusted from the supine position to the right side position.

[0047] On the other hand, in the process of the motor controlling the drive shaft 21 to rotate counterclockwise, since the half gear 34 is fixedly connected to the drive shaft 21, that is, the half gear 34 rotates counterclockwise synchronously, in the initial state when the motor does not start to drive the drive shaft 21 to rotate, the half gear 34 is engaged with the middle section of the rack 33 on one side, such as Figure 5 As shown, at this time, the half gear 34 is engaged with the middle section of the right rack 33.

[0048] When the half gear 34 rotates counterclockwise along with the drive shaft 21, the rack 33 moves synchronously. Since the limiting ring 32 is fixedly connected to the upper surface of the fixed platform 2, that is, the limiting ring 32 is in a fixed state along with the fixed platform 2, the extension rod 31 and the annular ring 3 can only slide along the length direction of the fixed platform 2 under the limiting effect of the limiting ring 32. At this time, the engagement between the half gear 34 and the rack 33 further drives the annular ring 3 and the extension rod 31 to start sliding. Figure 5 As shown, when the drive shaft 21 and the half gear 34 rotate counterclockwise, the rack 33, the annular ring 3 and the extension rod 31 slide to the right; when the half gear 34 rotates counterclockwise 90 degrees, the half gear 34 disengages from the current rack 33 and engages with the rack 33 on the other side, and then the half gear 34 continues to rotate counterclockwise 180 degrees. During this process, the rack 33 drives the annular ring 3 and the extension rod 31 to slide to the left. When the half gear 34 further rotates counterclockwise 180 degrees, the half gear 34 disengages from the rack 33 again and re-engages with the rack 33 in the initial state. Then the half gear 34 continues to rotate counterclockwise 90 degrees. During this process, the rack 33 drives the annular ring 3 and the extension rod 31 to slide to the right again.

[0049] Furthermore, during the reciprocating sliding of the extension rod 31 and the annular ring 3, the extension rod 31 pushes and pulls the positioning rods 35 on both sides to move synchronously, as shown in FIG. Figure 6 As shown, when the annular ring 3 and the extension rod 31 slide to the left, the positioning rod 35 on the left is pushed out synchronously, and the positioning rod 35 on the right is pulled in, and the positioning platform 37 is always in a fixed state with the base 13. At this time, the telescopic rod 36 on the left is gradually retracted into the interior of the positioning platform 37 as the positioning rod 35 is pulled out. Similarly, the telescopic rod 36 on the right is gradually extended from the interior of the positioning platform 37 as the positioning rod 35 is retracted, and its end is finally located above the corresponding position guide groove 14; when the annular ring 3 and the extension rod 31 slide to the right, the positioning platform 37 on the right is retracted into the interior of the telescopic rod 36, and the positioning platform 37 on the left is gradually extended.

[0050] It should be noted that, from the above, in the process of the motor driving the drive shaft 21 to rotate 360 ​​degrees counterclockwise, the patient is in a lying flat state at 0 degrees, in the process of 0-90 degrees, the patient is in the process of turning over from lying flat to left lateral position, at 90 degrees, the patient is in left lateral position, in 90-180 degrees, the patient is in the process of turning over from left lateral position to lying flat position, at 180 degrees, the patient is in the lying flat position again, in the process of 180-270 degrees, the patient is in the process of turning over from lying flat position to right lateral position, at 270 degrees, the patient is in right lateral position, in the process of 270-360 degrees, the patient is in the process of turning over from right lateral position to lying flat position, and at 360 degrees, the patient is in the lying flat position again.

[0051] That is, during the period when the elderly patient is bedridden, the order of turning over is the cycle of lying flat - left side lying - lying flat - right side lying - lying flat. The motor drives the drive shaft 21 to rotate 90 degrees, which is the process of adjusting the body position. At the same time, the length of time the motor stops after rotating 90 degrees is the length of time the patient maintains the current body position. For example, the motor can be set to rotate once every 2-3 hours, and a single rotation of 90 degrees means that the patient's turning interval is also 2-3 hours, so that the elderly patient can be automatically turned over without the assistance of a nursing staff.

[0052] Example 3:

[0053] See also Figure 7 and Figure 8 This embodiment further explains on the basis of the second embodiment: the bed board 4 is at the same height as the side board 39, and both ends of the middle section of the bed board 4 are fixedly connected with positioning shafts 41, and the outer contours of the two positioning shafts 41 are transmission-connected with connecting rods 42, and the other ends of the two connecting rods 42 are penetrated and transmission-connected with the output shaft 12, and speed increasers 43 are provided on all four sides of the bed board 4, and each end face of the speed increaser 43 away from the bed board 4 is provided with a positioning pin 44, and each positioning pin 44 fits into the guide groove 14 at the corresponding position and is engaged with the limit pin 15 at the corresponding position.

[0054] As can be seen from the first and second embodiments, when the output shaft 12 rotates, the bed plate 4 is turned over synchronously to realize the turning function of the elderly patient, such as Figure 7 and Figure 8As shown, first the output shaft 12 rotates 90 degrees counterclockwise. During this process, the connecting rod 42 gradually unfolds from a folded state, causing the connecting rod 42 to tend to lift the bed board 4. At this time, the telescopic rod 36 on the left extends from the inside of the positioning platform 37, thereby restricting the positioning pin 44 on the left side of the bed board 4 to the guide groove 14 at the corresponding position, that is, the left side of the bed board 4 is restricted by the positioning pin 44 and cannot be raised, but the telescopic rod 36 on the right does not restrict the positioning pin 44, that is, the positioning pin 44 on the right side of the bed board 4 can be freely raised and lowered, so that the process of the connecting rod 42 unfolding and lifting the bed board 4 at this time will cause the bed board 4 to gradually deflect to the left, and the elderly patient lies on his back on the upper surface of the bed board 4, and the turning process from the lying position to the left position is synchronously realized as the bed board 4 deflects to the left. After turning over, the elderly patient lies on his side on the surface of the side panel 39 on the left side of the bed board 4.

[0055] It should be noted that when the output shaft 12 rotates 90 degrees counterclockwise, the connecting rod 42 is in the maximum expanded state. At this time, the connecting rod 42 is fully extended. Subsequently, the output shaft 12 continues to rotate 90 degrees clockwise, and the connecting rod 42 is reset from the expanded state to the folded state. At this time, the bed board 4 is gradually flattened, and the patient is adjusted from the left side lying position to the lying position again. During the refolding process of the connecting rod 42, its folding position is affected by the deadweight of the connecting rod 42, resulting in the folding direction of the connecting rod 42 being opposite to the initial state. Figure 7 The figure shows the initial folded state of the connecting rod 42. When the output shaft 12 rotates 90 degrees counterclockwise and then 90 degrees clockwise, the folded state of the connecting rod 42 should be Figure 7 Mirror position of the shown state.

[0056] Furthermore, after the patient is lying flat again, the output shaft 12 continues to rotate clockwise 90 degrees. At this time, similar to the above process, the connecting rod 42 is unfolded again and lifts the bed board 4. At this time, the positioning pin 44 on the right side of the bed board 4 is in a locked state, causing the bed board 4 to begin to flip to the right, thereby realizing the patient's lying flat-right side lying position turning process. At this time, the patient lies on his side on the side board 39 on the right side of the bed board 4; then the output shaft 12 rotates counterclockwise 90 degrees, the bed board 4 gradually flattens, and the elderly patient resumes the lying flat position.

[0057] Example 4:

[0058] See also Figure 9 This embodiment further explains on the basis of the third embodiment: a threaded sleeve 51 is screwed on the outer contour of the two screw rods 5, and a guide plate 52 that passes through the bed board 4 is fixedly connected to the side of the threaded sleeve 51 pointing to the middle section of the bed board 4, and a massage pad 53 is fixedly connected to the top of the guide plate 52, and the top of the massage pad 53 is in contact with the lower surface of the bed board 4.

[0059] The two screw rods 5 both pass through the speed increasers 43 at corresponding positions and are connected to the positioning pins 44 at corresponding positions through the speed increasers 43 .

[0060] As can be seen from the first embodiment, during the turning process of the bed plate 4, the massage mechanism works synchronously to Figure 9 For example, when the bed board 4 flips to the left, its flipping axis is the extended axis of the left positioning pin 44. The left positioning pin 44 is clamped in the guide groove 14 at the corresponding position through the limit pin 15, and the speed increaser 43 at the corresponding position rotates along with the deflection of the bed board 4, that is, the left positioning pin 44 remains stationary, and the speed increaser 43 starts to rotate, and relative rotation is achieved between the speed increaser 43 and the positioning pin 44. According to the principle of interaction of forces, this process is equivalent to the positioning pin 44 rotating on the surface of the speed increaser 43. Furthermore, the speed amplification effect of the speed increaser 43 can realize the synchronous rotation of the screw rod 5. The principle of the speed increaser 43 belongs to the existing technology, so it will not be elaborated here.

[0061] Similarly, when the bed board 4 deflects to the right, the screw rod 5 on the right side rotates. When the screw rod 5 rotates, it tends to drive the threaded sleeve 51 to rotate synchronously. However, since the guide plate 52 passes through the bed board 4, the threaded sleeve 51 is limited by the guide plate 52 and the bed board 4 and cannot rotate. At this time, the rotation of the screw rod 5 will cause the threaded sleeve 51 to start moving along the axial direction of the screw rod 5, that is, the guide plate 52 and the massage pad 53 move synchronously with the threaded sleeve 51.

[0062] by Figure 9 For example, the guide plate 52 and the massage pad 53 are initially located at one end of the axial direction of the screw rod 5. When the bed board 4 is flipped to the left, the screw rod 5 on the left rotates to drive the threaded sleeve 51, the guide plate 52 and the massage pad 53 to move forward. The massage pad 53 on the left is in contact with the lower surface of the bed board 4, so that the movement of the massage pad 53 can massage the pressure surface of the patient when lying on his side. Since the pressure surface of the patient when lying on his side is significantly smaller than the pressure surface when lying flat, the growth of bedsores can be effectively prevented by massaging the pressure surface when lying on his side.

[0063] It should be noted that the travel range of the threaded sleeve 51, the guide plate 52 and the massage pad 53 is limited by the rotation range of the screw rod 5, and the rotation range of the screw rod 5 is further limited by the speed amplification power of the speed increaser 43. During the deflection of the bed board 4, the single rotation angle of the speed increaser 43 is fixed to 90 degrees, and the speed amplification power of the speed increaser 43 is set so that the threaded sleeve 51, the guide plate 52 and the massage pad 53 just travel from one end of the axial direction of the screw rod 5 to the other end, thereby realizing the reciprocating massage function of the massage pad 53.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing bedsore growth for elderly care, comprising a fixing plate (1), characterized in that: It also includes a nursing component and a massage mechanism, wherein the four sides of the upper surface of the fixing plate (1) are fixedly connected to bases (13), the top of each base (13) is provided with a guide groove (14), the inner contour of each guide groove (14) is fixedly connected to a limit pin (15), the center of the top of the fixing plate (1) is fixedly connected to a fixing seat (11), and the top of the fixing seat (11) is penetrated by an output shaft (12) driven by a motor; The nursing component comprises a turning mechanism for adjusting the patient's body position and a control mechanism for limiting the turning sequence, the control mechanism comprising a fixed platform (2) arranged on one side of a fixed plate (1), and the turning mechanism comprising a bed board (4) arranged above the fixed plate (1); The massage mechanism comprises a screw rod (5) for promoting the patient's blood circulation, wherein two screw rods (5) are provided and respectively penetrate the interior of both sides of the bed board (4).

2. The device for preventing bedsore growth for elderly care according to claim 1, characterized in that: The fixed platform (2) and the fixed plate (1) are fixedly connected and both are fixedly arranged on the ground. A driving shaft (21) is passed through the center of the fixed platform (2). The top end of the driving shaft (21) is fixedly connected to a bevel gear disc (22). The upper surface of the bevel gear disc (22) is intermittently meshed and connected to a transmission gear 1 (23) and a transmission gear 2 (24). The transmission gear 1 (23) and the transmission gear 2 (24) are both passed through and fixedly connected to the output shaft (12).

3. The device for preventing bedsore growth for elderly care according to claim 2, characterized in that: The transmission gear 1 (23) and the transmission gear 2 (24) are respectively located on both sides of the upper surface of the bevel gear disc (22), and the tooth curvature of the upper surface of the bevel gear disc (22) is set to 180 degrees.

4. The device for preventing bedsore growth for elderly care according to claim 2, characterized in that: The control mechanism further comprises an annular ring (3) placed on the upper surface of the fixed platform (2), both sides of the annular ring (3) are fixedly connected to extension rods (31), the outer contour of the extension rod (31) is penetrated by a sliding limit ring (32), the limit ring (32) is fixedly connected to both ends of the upper surface of the fixed platform (2), both sides of the inner contour of the middle section of the annular ring (3) are provided with racks (33), the outer contour of the drive shaft (21) is penetrated by a half gear (34), and the half gear (34) is intermittently meshed and transmission-connected with the rack (33); The ends of the two extension rods (31) away from the annular ring (3) are fixedly connected to positioning rods (35), the upper surfaces of the two positioning rods (35) away from the ends of the extension rods (31) are fixedly connected to guardrails (38), the surfaces of the two positioning rods (35) close to the annular ring (3) are fixedly connected to telescopic rods (36), and a positioning platform (37) is slidably passed through the outer contour of each telescopic rod (36), and side plates (39) are fixedly connected between the positioning platforms (37) located on both sides of the fixed seat (11).

5. The device for preventing bedsore growth for elderly care according to claim 4, characterized in that: The number of the positioning platforms (37) corresponds to the base (13), and each positioning platform (37) is fixedly connected to the top of the base (13) at a corresponding position.

6. The device for preventing bedsore growth for elderly care according to claim 1, characterized in that: The bed board (4) is at the same height as the side board (39), and both ends of the middle section of the bed board (4) are fixedly connected with positioning shafts (41), and the outer contours of the two positioning shafts (41) are both transmission-connected with connecting rods (42), and the other ends of the two connecting rods (42) are both penetrated and transmission-connected with the output shaft (12). Speed ​​increasers (43) are provided around the bed board (4), and the end surface of each speed increaser (43) away from the bed board (4) is provided with a positioning pin (44), and each positioning pin (44) is fitted into the guide groove (14) at the corresponding position and is engaged with the limit pin (15) at the corresponding position.

7. The device for preventing bedsore growth for elderly care according to claim 1, characterized in that: A threaded sleeve (51) is screwed onto the outer contours of the two screw rods (5); a guide plate (52) penetrating the bed board (4) is fixedly connected to the side of the threaded sleeve (51) pointing toward the middle section of the bed board (4); a massage pad (53) is fixedly connected to the top end of the guide plate (52); and the top end of the massage pad (53) is in contact with the lower surface of the bed board (4).

8. The device for preventing bedsore growth for elderly care according to claim 7, characterized in that: The two screw rods (5) both pass through the speed increasers (43) at corresponding positions and realize transmission connection with the positioning pins (44) at corresponding positions through the speed increasers (43).

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