Nursing mattress replacement aid for disabled elderly people

Abstract

The application provides a nursing bed mattress replacement assisting device for the disabled old people, which comprises an outer support, a lifting mechanism, a supporting net and a mattress replacement mechanism. The outer support has two support positions. The lifting mechanism has two lifting clamping parts, which are respectively corresponding to the two support positions and are located above the two support positions. The two ends of the supporting net are connected with the two lifting clamping parts, and the supporting net can support the disabled old people. The mattress replacement mechanism comprises a supply assembly and a storage assembly. The supply assembly and the storage assembly form a nursing area. After the supporting net supporting the disabled old people is lifted and a gap is formed between the supporting net and a bed body, the supply assembly and the storage assembly jointly guide the contaminated nursing bed mattress in the nursing area out of the nursing area and simultaneously send a new nursing bed mattress into the nursing area. The nursing bed mattress replacement assisting device for the disabled old people can quickly complete the automatic replacement of the nursing bed mattress, reduces the working strength of the nursing personnel, can adapt to family nursing and has high practicability.

Description

Technical Field

[0001] This invention belongs to the technical field of bed mattress replacement equipment, specifically relating to an auxiliary device for replacing nursing mattresses for disabled elderly people. Background Technology

[0002] For disabled elderly people who are bedridden year-round, professional caregivers are generally required to provide close care, and these caregivers must possess solid professional nursing skills. Among all nursing tasks, changing the mattress has always been a major challenge for caregivers. Changing the mattress for a bedridden disabled elderly person requires moving the elderly person out first, then moving them back in after the new mattress is installed, a time-consuming and laborious process.

[0003] In existing technologies, to reduce the difficulty of caregiving, the bed frame is usually modified, resulting in a nursing bed. See patent publication number CN22427007U; the patent title is "A Nursing Bed for Disabled Patients." This design uses multiple interlocking bed mattresses to avoid transferring disabled patients, and each mattress can be independently controlled for vertical lifting. This nursing bed allows the elderly person to be supported without moving them; by sequentially lowering the corresponding mattresses, the elderly person's body can be stably supported, and the bed sheet can be changed. However, in this solution, all mattresses need to be manually raised and lowered one by one, making the entire bed-changing process time-consuming, labor-intensive, and inefficient. Furthermore, most disabled elderly people are cared for by family members, who may be at work or away from home at certain times and unable to be by their side. Therefore, when family members temporarily leave, the nursing mattress cannot be changed in time, affecting the hygiene of the elderly person's bed. Summary of the Invention

[0004] This invention provides an auxiliary device for changing nursing mattresses for disabled elderly people, which aims to solve the problems of low efficiency in changing bed sheets and covers of existing nursing beds and the inability to monitor the process in real time during home care.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A mattress changing assistive device for disabled elderly people is provided, comprising:

[0007] The outer support has an accommodating space for placing the bed body; the outer support also has two support positions, which are distributed on both sides of the bed body along the width direction of the bed body;

[0008] The lifting mechanism is mounted on the outer support and has two lifting clamping parts, which correspond to the two support positions respectively and are both located above the two support positions.

[0009] The support net is located above the bed and is connected to the two lifting clamps at both ends. The support net is used to support disabled elderly people or to lift disabled elderly people up and down under the control of the lifting mechanism.

[0010] The mattress changing mechanism includes a supply component located on one of the support positions and a storage component located on the other support position; a nursing area corresponding to the bed is formed between the supply component and the storage component; after the support net lifts the disabled elderly person up and a gap is formed between the support net and the bed, the supply component and the storage component together remove the contaminated nursing mattress from the nursing area and send a new nursing mattress into the nursing area.

[0011] In one possible implementation, the external support includes:

[0012] The first support extends along the length of the bed frame and is located on one side of the bed frame along the width of the bed frame; the first support is one of the aforementioned support positions;

[0013] The second support extends along the length of the bed frame and is located on the other side of the bed frame along the width of the bed frame; the second support is another support position.

[0014] The connecting frame is located on one side of the bed along the length of the bed and is connected to the first bracket and the second bracket respectively.

[0015] In one possible implementation, the lifting mechanism includes:

[0016] At least two first screw jacks are provided, and each first screw jack is spaced apart on the first support along the length of the bed; the input ends of each first screw jack are coaxially connected through a connecting shaft to form a continuous first input shaft; each first screw jack has a first pushing end that extends vertically out of the first support, and each first pushing end is connected to a first clamping structure.

[0017] At least two second screw jacks are provided, and each second screw jack is spaced apart on the second support along the length of the bed; the input ends of each second screw jack are coaxially connected through a connecting shaft to form a continuous second input shaft; each second screw jack has a second pushing end that extends vertically out of the second support, and each second pushing end is connected to a second clamping structure;

[0018] A transmission structure is mounted on the connecting frame and is poweredly connected to the first input shaft and the second input shaft respectively, for enabling the first input shaft and the second input shaft to rotate synchronously;

[0019] The drive structure is poweredly connected to the first input shaft and is used to drive the first input shaft to rotate.

[0020] In one possible implementation, the first clamping structure and the second clamping structure have the same structure;

[0021] Both the first clamping structure and the second clamping structure include:

[0022] The lower long bar extends along the length of the bed and is connected to each of the first push ends or each of the second push ends;

[0023] An upper pressure rod extends along the length of the bed and presses against the lower long bar; the upper pressure rod and the lower long bar are detachably connected by a locking device; a clamping space for clamping the edge of the support net is formed between the upper pressure rod and the lower long bar;

[0024] The lower long bar and the upper pressure bar are combined to form the lifting clamping part.

[0025] In one possible implementation, the connecting frame includes:

[0026] An intermediate fixing frame is located between the first bracket and the second bracket;

[0027] The first carriage is slidably connected to the intermediate fixed frame and connected to the first bracket;

[0028] The second carriage is slidably connected to the intermediate fixed frame and connected to the second bracket.

[0029] In one possible implementation, the transmission structure includes:

[0030] A rotating drum is rotatably mounted on the first carriage and is arranged along the width direction of the bed; the rotating drum has a spline hole through a prism cavity; one end of the rotating drum is connected to the first input shaft gear;

[0031] A rotating shaft is rotatably mounted on the second carriage and is arranged along the width direction of the bed; one end of the rotating shaft is connected to the second input shaft gear; the other end of the rotating shaft is coaxially connected to a splined shaft, which slides in fit with the splined hole.

[0032] In one possible implementation, the supply component includes:

[0033] The first drive roller is rotatably mounted on the first support, and its axis is set along the length of the bed.

[0034] A first auxiliary roller is rotatably mounted on the first support, with its axis arranged along the length of the bed; the first auxiliary roller is located on the side of the first drive roller away from the bed; a first transmission channel is formed between the first auxiliary roller and the first drive roller;

[0035] A guide roller is rotatably mounted on the first support, with its axis arranged along the length of the bed; the guide roller is located below the first drive roller;

[0036] The unwinding shaft is rotatably mounted on the first support, with its axis set along the length of the bed.

[0037] A first driving component is mounted on the first bracket and is poweredly connected to the first driving roller and / or the first auxiliary roller.

[0038] The nursing mattress is wound on the unwinding shaft, and the free end of the nursing mattress enters the nursing area after passing through the guide roller and the first transfer channel in sequence.

[0039] In one possible implementation, the unwinding shaft is mounted on the first bracket;

[0040] The first bracket is provided with a hanging part for the unwinding shaft to be rotatably connected.

[0041] In one possible implementation, the storage component includes:

[0042] The second drive roller is rotatably mounted on the second support, and its axis is set along the length of the bed.

[0043] The second auxiliary roller is rotatably mounted on the second support, and its axis is set along the length of the bed; the second auxiliary roller is located on the side of the second drive roller away from the bed; a second transmission channel is formed between the second auxiliary roller and the second drive roller;

[0044] The second drive component is mounted on the second bracket and is poweredly connected to the second drive roller and / or the second auxiliary roller.

[0045] The storage box, located below the second transfer channel, has a storage cavity with an open top;

[0046] The contaminated nursing mattress, which is exported from the nursing area, enters the storage cavity after passing through the second transfer channel.

[0047] In one possible implementation, the second auxiliary roller is provided with a plurality of annular grooves, and each of the annular grooves is spaced apart along the length of the bed.

[0048] The mattress changing assistance device for disabled elderly provided in this implementation, compared with existing technologies, has two support positions on the left and right sides of the bed frame, and each support position corresponds to a lifting clamp in the lifting mechanism. The two lifting clamps can jointly support the support net. The support net can continuously contact or support the disabled elderly, ensuring that the elderly are always supported by the support net during the mattress changing process, only moving vertically with the support net, without needing to be moved off the bed or to other locations, or repeatedly turning over to adjust their position, thus improving safety and reducing the operational burden on caregivers. Simultaneously, the mattress changing mechanism provides a supply component and a storage component. When the support net lifts the disabled elderly upwards and a gap is formed between the support net and the bed surface, the supply component and the storage component work together to remove the soiled mattress from the care area and simultaneously deliver a new nursing mattress to the care area, thus completing the mattress changing. This effectively increases the speed of mattress changing, further reducing the workload of caregivers and improving the efficiency of mattress changing.

[0049] For home care, the lifting mechanism and mattress changing mechanism can be used with a timed control module or a remote control module. When family members are unable to be with the elderly person in real time due to work, going out, or other reasons, they can set the mattress changing time in advance, and the device will automatically change the mattress when the set time is reached; or it can be remotely controlled in conjunction with home monitoring equipment to start the changing operation from outside, making it highly adaptable and practical. Attached Figure Description

[0050] Figure 1 A schematic diagram of the structure of the assistive device for changing nursing mattresses for disabled elderly provided in an embodiment of the present invention. Figure 1 ;

[0051] Figure 2 for Figure 1 An enlarged structural diagram of section A of the assistive device for changing nursing mattresses for disabled elderly provided in the embodiment;

[0052] Figure 3 A schematic diagram of the structure of the assistive device for changing nursing mattresses for disabled elderly provided in an embodiment of the present invention. Figure 2 (Hidden bed);

[0053] Figure 4 for Figure 3 Enlarged structural diagram of section B of the assistive device for changing nursing mattresses for disabled elderly provided in the embodiment;

[0054] Figure 5 A schematic diagram of the adaptation structure of the first driving component and the second driving component in a nursing mattress replacement assistive device for disabled elderly people provided in another embodiment of the present invention;

[0055] Figure 6This is a schematic diagram of the lifting mechanism and support net in the auxiliary device for changing a nursing mattress for disabled elderly provided in an embodiment of the present invention.

[0056] Explanation of reference numerals in the attached figures:

[0057] 10. External support; 11. First support; 12. Second support; 13. Connecting frame; 131. Intermediate fixing frame; 132. First slide; 133. Second slide; 14. Accommodation space; 15. Hanging part;

[0058] 20. Lifting mechanism; 21. First screw jack; 211. First input shaft; 22. Second screw jack; 221. Second input shaft; 23. Transmission structure; 231. Rotary drum; 232. Rotary shaft; 233. Splined shaft; 24. Drive structure; 25. First clamping structure; 251. Lower long bar; 252. Upper pressure bar; 26. Second clamping structure;

[0059] 30. Netting;

[0060] 40. Supply component; 41. First drive roller; 42. First auxiliary roller; 43. Guide roller; 44. Unwinding shaft; 45. First drive component; 451. First fixed base; 452. First rack; 453. First gear; 454. First one-way bearing;

[0061] 50. Storage assembly; 51. Second drive roller; 52. Second auxiliary roller; 521. Annular groove; 53. Second drive component; 531. Second fixing plate; 532. Second rack; 533. Second gear; 534. Second one-way bearing; 54. Storage box;

[0062] 60. Bed frame. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0064] The directions or similar terms used throughout this invention, such as "front," "back," "left," "right," "top," "bottom," "inner," "outer," and "side," are mainly for reference to the directions in the accompanying drawings. These directions or similar terms are only used to assist in explaining and understanding the embodiments of this invention and are not intended to limit this invention.

[0065] This invention provides a 60mm mattress replacement auxiliary device for a nursing bed for disabled elderly people. Please refer to the following: Figure 1 and Figure 3 The present invention will now describe the pad changing auxiliary device for a nursing bed 60 for disabled elderly persons. The pad changing auxiliary device for a nursing bed 60 for disabled elderly persons includes an outer support 10, a lifting mechanism 20, a support net 30, and a pad changing mechanism. The outer support 10 has an accommodating space 14 for the bed 60 to be placed. The outer support 10 also has two support positions, which are distributed on both sides of the bed 60 along its width. The lifting mechanism 20 is mounted on the outer support 10 and has two lifting clamping parts, which correspond to the two support positions and are located above them. The support net 30 is located above the bed 60, with both ends connected to the two lifting clamping parts. The support net 30 can support the disabled elderly person or, under the control of the lifting mechanism 20, support the disabled elderly person for lifting and lowering. The pad changing mechanism includes a supply component 40 located on one of the support positions and a storage component 50 located on the other support position. A nursing area corresponding to the bed 60 is formed between the supply component 40 and the storage component 50. After the support net 30 lifts the disabled elderly person up and a gap is formed between the support net 30 and the bed 60, the supply component 40 and the storage component 50 work together to remove the contaminated nursing bed 60 mat from the nursing area, and at the same time send a new nursing bed 60 mat into the nursing area.

[0066] In this embodiment, one implementation of the outer support 10 is that it is disposed around the periphery of the bed frame 60, and the accommodating space 14 formed in the outer support 10 is for placing the bed frame 60. Preferably, one side of the accommodating space 14 is open to facilitate its placement in conjunction with the bed frame 60. The two support positions of the outer support 10 are respectively disposed on the left and right sides of the bed frame 60 along the width direction and extend along the length direction of the bed frame 60, providing stable support throughout the entire range of the bed. The lifting mechanism 20 has two lifting clamping parts, each corresponding to one of the two support positions, i.e., distributed on the left and right sides of the bed frame 60. The lifting clamping parts can extend along the length direction of the bed frame 60 to provide a long-distance clamping and fixing for the edge of the support net 30. The support net 30 itself has sufficient load-bearing capacity and appropriate flexibility, which can stably support the entire body of the disabled elderly without local collapse or the elderly slipping, and also has a certain degree of softness so as not to hurt the elderly's delicate skin. In normal bed rest, the support net 30 can be laid flat on the nursing mattress, and disabled elderly people can lie directly on the surface of the support net 30, with no significant difference in feeling compared to ordinary bed rest.

[0067] It's important to understand that when the mattress is not being changed, the elderly person with disabilities lies normally on the bed with the nursing mattress, and the support net 30 lies flat. The elderly person's weight is supported by the bed frame 60 and the mattress, and at this time, both the lifting mechanism 20 and the support net 30 are in a low position. When the nursing mattress becomes soiled and needs to be replaced, the lifting mechanism 20 is activated first. The lifting mechanism 20 moves the two lifting clamps upwards simultaneously, and the lifting clamps simultaneously raise the two edges of the support net 30. The support net 30 then evenly supports the elderly person's entire body from below, slowly lifting the elderly person off the surface of the original nursing mattress. After the support net 30 rises to the appropriate height, a sufficient gap is formed between the lower surface of the support net 30 and the upper surface of the original nursing mattress, allowing the nursing mattress to pass horizontally. During this process, the mattress replacement mechanism can be activated, and the supply component 40 and the storage component 50 start operating simultaneously. The storage component 50 applies a pulling force to the contaminated nursing mattress in the care area, pulling the old mattress to one side and gradually removing it from the care area. Simultaneously, the supply component 40 continuously supplies a new nursing mattress, which is gradually brought into the care area as the old mattress moves, filling the vacated space. As the lifting mechanism 20 slowly lowers the lifting clamp, the support net 30 carries the elderly person back onto the surface of the new nursing mattress, completing the replacement.

[0068] The mattress changing auxiliary device for the nursing bed 60 provided in this embodiment has two support positions of the outer bracket 10 located on the left and right sides of the bed 60, and each support position corresponds to a lifting clamping part in the lifting mechanism 20. The two lifting clamping parts can jointly support the support net 30. The support net 30 can continuously contact or support the disabled elderly, ensuring that the elderly are always supported by the support net 30 during the mattress changing process. The elderly only need to move vertically with the support net 30, without having to be moved off the bed or to other positions, and without having to repeatedly turn over to adjust their position. This improves safety and also reduces the operational burden on caregivers. Meanwhile, the mattress changing mechanism provides a supply component 40 and a storage component 50. When the support net 30 lifts the disabled elderly person upward and a gap is formed between the support net 30 and the bed surface, the supply component 40 and the storage component 50 can work together to remove the contaminated mattress from the nursing area and send a new nursing mattress into the nursing area to complete the replacement of the nursing mattress. This effectively improves the speed of changing the nursing mattress, further reduces the workload of caregivers, and thus improves the efficiency of changing the nursing mattress.

[0069] For home care, the lifting mechanism 20 and the mattress changing mechanism can be used with a timer control module or a remote control module. When family members are unable to be with the elderly person in real time due to work, going out, or other reasons, they can set the mattress changing time in advance, and the device will automatically change the mattress when the set time is reached; or it can be remotely controlled in conjunction with home monitoring equipment to start the changing operation from outside, making it highly adaptable and practical.

[0070] In addition, for disabled elderly people who are still able to move their hands and have some awareness, a remote control can be set up to work with the lifting mechanism 20 and the pad changing mechanism, so that they can be controlled by the remote control.

[0071] It should be noted that for disabled elderly people, this type of automatic changing nursing mattress, combined with daily regular cleaning, such as wiping and washing the entire body of the disabled elderly person every morning and evening and changing the support net 30, can greatly reduce the intensity of nursing work, while also continuously ensuring the hygiene of the elderly person's bed and reducing the probability of complications such as bedsores and skin infections.

[0072] It should also be noted that the nursing mattress can be a continuous, elongated structure. In one possible implementation, the nursing mattress is stacked on one side of the supply component 40, passes through the supply component 40 and the nursing area, and then comes into contact with the storage component 50. The storage component 50 may have a storage module to ensure that the soiled nursing mattress is transferred therein.

[0073] In some embodiments, the outer support 10 may be adopted as follows: Figure 1 The structure is shown. The outer support 10 includes a first support 11, a second support 12, and a connecting frame 13. The first support 11 extends along the length of the bed 60 and is located on one side of the bed 60 along the width of the bed 60. The first support 11 is one of the support positions. The second support 12 extends along the length of the bed 60 and is located on the other side of the bed 60 along the width of the bed 60. The second support 12 is the other support position. The connecting frame 13 is located on one side of the bed 60 along the length of the bed 60 and is connected to both the first support 11 and the second support 12.

[0074] The first support 11, the second support 12, and the connecting frame 13 together form a U-shaped frame structure, and the internal space of the U-shape is the accommodating space 14. During installation, the bed 60 can be directly pushed into the accommodating space 14 from the open side of the U-shape without lifting the bed 60, making the operation very convenient.

[0075] Correspondingly, the bottom of both the first bracket 11 and the second bracket 12 can be equipped with lockable omnidirectional wheels.

[0076] In some embodiments, the lifting mechanism 20 described above can be as shown in the figure. Figure 1 , 3 and Figure 6 The structure shown is as follows. The lifting mechanism 20 includes a first screw jack, a second screw jack 22, a transmission structure 23, and a drive structure 24.

[0077] At least two first screw jacks are provided, each spaced apart on a first support 11 along the length of the bed 60. The input ends of each first screw jack are coaxially connected via connecting shafts to form a continuous first input shaft 211. Each first screw jack has a first pushing end extending vertically from the first support 11, and each first pushing end is connected to a first clamping structure 25. At least two second screw jacks 22 are provided, each spaced apart on a second support 12 along the length of the bed 60. The input ends of each second screw jack 22 are coaxially connected via connecting shafts to form a continuous second input shaft 221. Each second screw jack 22 has a second pushing end extending vertically from the second support 12, and each second pushing end is connected to a second clamping structure 26. A transmission structure 23 is provided on a connecting frame 13 and is poweredly connected to both the first input shaft 211 and the second input shaft 221, enabling the first input shaft 211 and the second input shaft 221 to rotate synchronously. The drive structure 24 is poweredly connected to the first input shaft 211 and can drive the first input shaft 211 to rotate.

[0078] At least two first screw jacks are provided. All first screw jacks are arranged at intervals along the length of the bed and mounted on the first support 11, and are all fixedly connected to the first support 11. Each first screw jack has an input end, and the input ends of all first screw jacks are coaxially connected in series via connecting shafts to form a continuous first input shaft 211. That is, when the first input shaft 211 rotates, it simultaneously drives all first screw jacks to rotate synchronously. Each first screw jack has a first pushing end, which extends vertically upwards from the first support 11 and can move vertically. The top ends of all first pushing ends are connected to the first clamping structure 25. Correspondingly, at least two second screw jacks 22 are also provided. All second screw jacks 22 are also arranged at intervals along the length of the bed and mounted on the second support 12, and are all fixedly connected to the second support 12. Each second screw jack 22 has an input end, and the input ends of all second screw jacks 22 are also coaxially connected in series via connecting shafts to form a continuous second input shaft 221. Each second screw jack 22 is provided with a second pushing end that extends vertically upward from the second support 12, and the top ends of all the second pushing ends are connected to the second clamping structure 26. The first screw jack 21 and the second screw jack 22 are exactly the same in specifications.

[0079] The transmission structure 23 is mounted on the connecting frame 13 and forms a power connection with the first input shaft 211 and the second input shaft 221, ensuring that the first input shaft 211 and the second input shaft 221 rotate synchronously, thus ensuring that the operating speeds of each first screw jack and each second screw jack 22 are consistent. The drive structure 24 is poweredly connected to the first input shaft 211. When the drive structure 24 operates, it drives the first input shaft 211 to rotate. The first input shaft 211 drives all the first screw jacks to operate synchronously, and at the same time, it transmits power to the second input shaft 221 through the transmission structure 23, causing the second input shaft 221 to rotate synchronously, thereby driving all the second screw jacks 22 to operate synchronously. Because the first input shaft 211 and the second input shaft 221 rotate synchronously, the action parameters of each first screw jack and each second screw jack 22 are consistent. Therefore, the rising speed and rising height of the first clamping structure 25 and the second clamping structure 26 are consistent, thus ensuring that the net 30 rises and falls synchronously on both sides. The elderly lying on it will not tilt or slide, and the support is very stable and safe.

[0080] In this embodiment, the drive structure 24 may include a driver and a reducer. The reducer may be connected to the first bracket 11, and the driver may be connected to the reducer. The driver may also be used with a timing control module or a remote control module.

[0081] In some embodiments, the first clamping structure 25 or the second clamping structure 26 described above may adopt the following... Figures 1 to 4 The structure shown is identical to that of the first clamping structure 25 and the second clamping structure 26.

[0082] Both the first clamping structure 25 and the second clamping structure 26 include a lower elongated rod 251 and an upper pressing rod 252. The lower elongated rod 251 extends along the length of the bed 60 and is connected to each of the first or second pushing ends. The upper pressing rod 252 extends along the length of the bed 60 and presses against the lower elongated rod 251. The upper pressing rod 252 and the lower elongated rod 251 are detachably connected by a locking member. A clamping space for clamping the edge of the support net 30 is formed between the upper pressing rod 252 and the lower elongated rod 251.

[0083] The lower long bar 251 and the upper pressure bar 252 are combined to form a lifting clamping part.

[0084] When installing the support net 30, first loosen the locking mechanism, remove the upper pressure rod 252 from the lower long rod 251, then lay one edge of the support net 30 flat on the upper surface of the lower long rod 251, align it, and press the upper pressure rod 252 onto the edge of the support net 30. Finally, tighten the locking mechanism. The upper pressure rod 252 will then firmly press the support net 30 onto the lower long rod 251, fixing the edge of the support net 30 with the clamping force between the upper and lower rods. Both the lower long rod 251 and the upper pressure rod 252 extend along the entire length of the bed, so the entire side edge of the support net 30 will be evenly clamped. When the support net 30 is under stress, the entire side bears the load evenly, preventing tearing and ensuring safety. When it is necessary to disassemble, clean, or replace the support net 30, simply loosen the locking mechanism and remove the upper pressure rod 252 to pull out the support net 30.

[0085] In this embodiment, regarding the lower long rod 251 and the upper pressure rod 252, aluminum alloy square tubes can be used in actual implementation. A layer of silicone can be applied to the top surface of the lower long rod 251 and the bottom surface of the upper pressure rod 252 to increase friction, make the clamping more secure, and prevent damage to the netting 30. Regarding the locking components, bolts can be used in actual implementation, and through holes can be provided on the corresponding edges of the netting 30.

[0086] In some embodiments, the connecting frame 13 may be adopted as follows: Figure 1 The structure is shown. The connecting frame 13 includes an intermediate fixed frame 131, a first slide 132, and a second slide 133. The intermediate fixed frame 131 is located between the first support 11 and the second support 12. The first slide 132 is slidably connected to the intermediate fixed frame 131 and connected to the first support 11. The second slide 133 is slidably connected to the intermediate fixed frame 131 and connected to the second support 12.

[0087] The intermediate fixed frame 131 is located in the middle between the first support 11 and the second support 12, and is the main body of the connecting frame 13. A portion of the first slide 132 is slidably connected to the intermediate fixed frame 131 and can slide relative to the intermediate fixed frame 131 along the width direction of the bed. The other end of the first slide 132 is fixedly connected to the first support 11, meaning the first slide 132 and the first support 11 are integral. Similarly, a portion of the second slide 133 is slidably connected to the intermediate fixed frame 131 and can also slide relative to the intermediate fixed frame 131 along the width direction of the bed. The other end of the second slide 133 is fixedly connected to the second support 12, meaning the second slide 133 and the second support 12 are integral. This structure allows for adjustment of the distance between the first support 11 and the second support 12, thereby ensuring adjustment of the width of the accommodating space 14. If the bed frame 60 is wide, the first slide 132 and the second slide 133 can be pulled outward from the middle fixing frame 131 by an appropriate length so that the distance between the two supports matches the width of the bed. Then, fix the position of the slides, and it can be used normally. If the bed frame 60 is narrow, the two slides can be pushed inward to reduce the distance between the supports and adapt to the narrow bed frame 60.

[0088] Specifically, the sliding positions of the first slide 132 and the second slide 133 relative to the intermediate fixed frame 131 are fixed, which can be achieved by bolts. The first slide 132, the second slide 133, and the intermediate fixed frame 131 are all provided with multiple adjustment holes, as shown in the reference. Figure 1 .

[0089] In some embodiments, the transmission structure 23 described above may employ, for example... Figure 6 The structure is shown. The transmission structure 23 includes a rotating drum 231 and a rotating shaft 232. The rotating drum 231 is rotatably mounted on the first carriage 132 and is arranged along the width direction of the bed 60. The rotating drum 231 has a splined hole with a prism cavity through it. One end of the rotating drum 231 is geared to the first input shaft 211. The rotating shaft 232 is rotatably mounted on the second carriage 133 and is arranged along the width direction of the bed 60. One end of the rotating shaft 232 is geared to the second input shaft 221. The other end of the rotating shaft 232 is coaxially connected to a splined shaft 233, which slides in fit with the splined hole.

[0090] The transmission structure 23 is a telescopic transmission shaft structure. When the connecting frame 13 is telescopically adjusted to adjust the width, the spline shaft 233 slides accordingly in the spline hole. The total length of the transmission structure 23 changes length or length synchronously with the connecting frame 13, but always maintains power connection and will not interrupt transmission due to width adjustment. Thus, it can adapt to the adjustment of the interval between the first bracket 11 and the second bracket 12.

[0091] In this embodiment, one end of the rotating drum 231 is connected to one end of the first input shaft 211 by a gear connection, as detailed in [reference needed]. Figure 6 The ends of both are connected by bevel gear meshing. For details regarding the gear connection between one end of the rotating shaft 232 and one end of the stacked input shaft, please refer to [link / reference needed]. Figure 6 The ends of both are connected by bevel gear fitting.

[0092] Additionally, see Figure 6 The screw jack utilizes the principle of worm gear transmission, resulting in an eccentricity between the input and pushing ends. Therefore, the rotating shaft 232 and the second input shaft 221 are located on the same horizontal plane. Consequently, the first screw jack 21 and the second screw jack 22 are arranged symmetrically. When the first input shaft 211 rotates in the forward direction, the corresponding first pushing end rises; conversely, when the second input shaft 221 rotates in the reverse direction, the corresponding second pushing end rises. Therefore, the bevel gears corresponding to the rotating drum 231 and the rotating shaft 232 can both be positioned between the first and second input shafts 211 and 221. This structure facilitates the power connection between the rotating shaft 232 and the second input shaft 221, avoiding interference.

[0093] In some embodiments, the supply component 40 described above may employ, for example... Figure 1 and Figure 2 The structure shown is as follows. The supply assembly 40 includes a first drive roller 41, a first auxiliary roller 42, a guide roller 43, an unwinding shaft 44, and a first drive component 45.

[0094] A first drive roller 41 is rotatably mounted on a first support 11, with its axis aligned along the length of the bed 60. A first auxiliary roller 42 is rotatably mounted on a first support 11, with its axis aligned along the length of the bed 60. The first auxiliary roller 42 is located on the side of the first drive roller 41 away from the bed 60. A first transmission channel is formed between the first auxiliary roller 42 and the first drive roller 41. A guide roller 43 is rotatably mounted on a first support 11, with its axis aligned along the length of the bed 60. The guide roller 43 is located below the first drive roller 41. An unwinding shaft 44 is rotatably mounted on a first support 11, with its axis aligned along the length of the bed 60. A first drive component 45 is mounted on a first support 11 and is poweredly connected to the first drive roller 41 and / or the first auxiliary roller 42.

[0095] The nursing bed 60 is wound on the unwinding shaft 44, and the free end of the nursing bed 60 enters the nursing area after passing through the guide roller 43 and the first transfer channel in sequence.

[0096] The first drive roller 41 and the first auxiliary roller 42 are located in the same plane, and the tops of the first drive roller 41 and the first auxiliary roller 42 are slightly higher than the bed surface of the bed 60 to avoid friction with the bed 60 during the replacement and movement of the nursing mattress. When replacing the nursing mattress, the first drive assembly is activated, driving the first drive roller 41 and the first auxiliary roller 42 to rotate in opposite directions. The nursing mattress, sandwiched between them, is pushed upwards by the two rollers under the action of friction, and simultaneously pulled by the storage assembly 50, moving the nursing mattress to the nursing area. Preferably, to facilitate the synchronous rotation of the first drive roller 41 and the first auxiliary roller 42, the shafts of the first drive roller 41 and the first auxiliary roller 42 can be meshed by two identical gears. The surfaces of both the first drive roller 41 and the first auxiliary roller 42 can be covered with a rubber layer.

[0097] As the nursing mattress is gradually unrolled from the unwinding reel 44, the diameter of the roll decreases. The guide roller 43 prevents the nursing mattress placed on the unwinding reel 44 from interfering with the first support 11, thus ensuring the integrity of the nursing mattress. The unwinding reel 44 can hold the entire roll of nursing mattress, making it easier for nursing staff to operate.

[0098] In this embodiment, as one implementation of the first driving component 45, see [link to relevant documentation]. Figure 2The first driving component 45 can be a servo motor or a stepper motor, which is mounted on the first bracket 11, and its power end is connected to the first driving roller 41 or the first auxiliary roller 42. The gear meshing between the first driving roller 41 and the first auxiliary roller 42 ensures synchronous driving of the first driving roller 41 and the first auxiliary roller 42.

[0099] As another possible implementation of the first driving component 45, see [link to relevant documentation]. Figure 5 The shafts of the first drive roller 41 and the first auxiliary roller 42 are meshed by gears. Both the shafts of the first drive roller 41 and the first auxiliary roller 42 have a head end near the connecting frame 13 and a tail end away from the connecting frame 13. The first drive component 45 is located at the head end of the shaft of the first drive roller 41 and includes a first fixed seat 451 connected to the first bracket 11, a first rack 452 slidably disposed in the first fixed seat 451 along a vertical direction, a first gear 453 meshing with the first rack 452, and a first one-way bearing 454 located between the first gear 453 and the shaft of the first drive roller 41. The first rack 452 is vertically arranged, its top end connected to a corresponding lifting clamping part, and the first rack 452 is located between the first gear 453 and the first bracket 11. Specifically, when the lifting clamping part moves upward, it drives the first rack 452 to move upward. The first rack 452 drives the first gear 453 to rotate in the forward direction, which in turn drives the shaft of the first drive roller 41 to rotate in the forward direction through the first one-way bearing 454, thus realizing the forward rotation of the first drive roller 41. At the same time, the first auxiliary roller 42 rotates in the reverse direction, realizing the upward transfer of the nursing mattress. When the lifting clamping part moves downward, it drives the first rack 452 to move downward. The first rack 452 drives the first gear 453 to rotate in the reverse direction. At this time, the first one-way bearing 454 cannot transmit power to the shaft of the first drive roller 41, so the shaft of the first drive roller 41 is stationary, stopping the transfer of the nursing mattress.

[0100] The nursing mattress can be automatically changed with just one lifting mechanism 20, without the need for additional drive.

[0101] It should be noted that when a single lifting motion is insufficient to fully cover the nursing area with the new nursing mattress, the lifting mechanism 20 can drive the lifting clamping part to lift and lower multiple times to ensure that the contaminated nursing mattress in the nursing area is completely removed, while simultaneously replacing the nursing mattress with a new one.

[0102] In some embodiments, the unwinding shaft 44 may be as follows: Figure 1 The structure is shown. The unwinding shaft 44 is hung on the first bracket 11, and the first bracket 11 is provided with a hanging part 15 for the unwinding shaft 44 to be rotatably connected.

[0103] The hanging method for changing material rolls allows for quick and easy replacement, making it simple and convenient for nursing staff.

[0104] In some embodiments, the storage component 50 may employ, as follows: Figure 3 and Figure 4 The structure is shown. The storage assembly 50 includes a second drive roller 51, a second auxiliary roller 52, a second drive component 53, and a storage box 54. The second drive roller 51 is rotatably mounted on the second support 12, and its axis is arranged along the length direction of the bed 60. The second auxiliary roller 52 is rotatably mounted on the second support 12, and its axis is arranged along the length direction of the bed 60. The second auxiliary roller 52 is located on the side of the second drive roller 51 away from the bed 60. A second transmission channel is formed between the second auxiliary roller 52 and the second drive roller 51. The second drive component 53 is mounted on the second support 12 and is poweredly connected to the second drive roller 51 and / or the second auxiliary roller 52. The storage box 54 is located below the second transmission channel and has a storage cavity with an open top.

[0105] Among them, the contaminated nursing bed pads 60, which are exported from the nursing area, enter the storage cavity after passing through the second transfer channel.

[0106] The second drive roller 51 and the second auxiliary roller 52 are located in the same plane, with their top ends slightly higher than the bed surface of the bed 60 and flush with the top end of the first drive roller 41. This avoids friction between the second drive roller 51 and the bed 60 during the replacement and movement of the nursing mattress, while ensuring the levelness of the nursing mattress within the nursing area. When replacing the nursing mattress, the second drive assembly is activated, causing the second drive roller 51 and the second auxiliary roller 52 to rotate in opposite directions. The nursing mattress sandwiched in the middle is pushed downwards by the two rollers under the action of friction, creating traction and moving the rear nursing mattress into the nursing area. Preferably, to facilitate the synchronous rotation of the second drive roller 51 and the second auxiliary roller 52, the shafts of the second drive roller 51 and the second auxiliary roller 52 can be meshed by two identical gears. The surfaces of both the second drive roller 51 and the second auxiliary roller 52 can be covered with a rubber layer.

[0107] The storage box 54 located at the bottom of the second transfer channel ensures that the exported nursing mattresses can be directly placed into it for storage, preventing contamination of the surrounding area. The storage box 54 is detachably connected to the bottom of the second bracket 12.

[0108] In this embodiment, as one implementation of the second driving component 53, see [link to relevant documentation]. Figure 4 The second driving component 53 can be a servo motor or a stepper motor, which is mounted on the second bracket 12, and its power end is connected to the second driving roller 51 or the second auxiliary roller 52. The gear meshing between the second driving roller 51 and the second auxiliary roller 52 ensures simultaneous synchronous driving of both rollers.

[0109] As another possible implementation of the second drive component 53, see [link to relevant documentation]. Figure 5 The shafts of the second drive roller 51 and the second auxiliary roller 52 are meshed by gears. Both the shafts of the second drive roller 51 and the second auxiliary roller 52 have a head end near the connecting frame 13 and a tail end away from the connecting frame 13. The second drive component 53 is located at the head end of the shaft of the second drive roller 51 and includes a second fixed seat connected to the second bracket 12, a second rack 532 slidably disposed in the second fixed seat in a vertical direction, a second gear 533 meshing with the second rack 532, and a second one-way bearing 534 located between the second gear 533 and the shaft of the second drive roller 51. The second rack 532 is vertically arranged, with its top end connected to a corresponding lifting clamping part, and the second rack 532 is located on the side of the second gear 533 away from the second bracket 12. Specifically, when the lifting clamping part moves upward, it drives the second rack 532 upward. The second rack 532 drives the second gear 533 to rotate forward, which in turn drives the shaft of the second drive roller 51 to rotate forward through the second one-way bearing 534, thus realizing the forward rotation of the second drive roller 51. At the same time, the second auxiliary roller 52 rotates in the opposite direction, realizing the downward transfer of the nursing mattress. When the lifting clamping part moves downward, it drives the second rack 532 downward. The second rack 532 drives the second gear 533 to rotate in the opposite direction. At this time, the second one-way bearing 534 cannot transmit power to the shaft of the second drive roller 51. Therefore, the shaft of the second drive roller 51 is stationary, stopping the transfer of the nursing mattress.

[0110] The nursing mattress can be automatically changed with just one lifting mechanism 20, without the need for additional drive.

[0111] It should be noted that when a single lifting motion is insufficient to fully cover the nursing area with the new nursing mattress, the lifting mechanism 20 can drive the lifting clamping part to lift and lower multiple times to ensure that the contaminated nursing mattress in the nursing area is completely removed, while simultaneously replacing the nursing mattress with a new one.

[0112] In some embodiments, the second auxiliary roller 52 may be as follows: Figure 3 and Figure 4 The structure is shown. The second auxiliary roller 52 is provided with multiple annular grooves 521, and each annular groove 521 is spaced apart along the length of the bed 60.

[0113] When a contaminated nursing mattress passes through the second transfer channel, the second drive roller 51 and the second auxiliary roller 52 clamp the mattress. Since the surface of the contaminated mattress is covered with stains, such as excrement, it cannot withstand the pressure. Therefore, the outer periphery of the second auxiliary roller 52 is provided with multiple annular grooves 521. After the second drive roller 51 and the second auxiliary roller 52 form a pressure, the stains on the nursing mattress are squeezed into the corresponding areas of the annular grooves 521, and then guided or dropped into the storage box 54, thus preventing them from remaining between the second drive roller 51 and the second auxiliary roller 52.

[0114] It should be noted that the second auxiliary roller 52 needs to be disinfected and cleaned regularly by nursing staff.

[0115] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An assistive device for changing a nursing mattress for disabled elderly people, characterized in that, include: The outer support has an accommodating space for placing the bed body; the outer support also has two support positions, which are distributed on both sides of the bed body along the width direction of the bed body; The lifting mechanism is mounted on the outer support and has two lifting clamping parts, which correspond to the two support positions respectively and are both located above the two support positions. The support net is located above the bed and is connected to the two lifting clamps at both ends. The support net is used to support disabled elderly people or to lift disabled elderly people up and down under the control of the lifting mechanism. The mattress changing mechanism includes a supply component located on one of the support positions and a storage component located on the other support position; a nursing area corresponding to the bed is formed between the supply component and the storage component; after the support net lifts the disabled elderly person up and a gap is formed between the support net and the bed, the supply component and the storage component together remove the contaminated nursing mattress from the nursing area and send a new nursing mattress into the nursing area.

2. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 1, characterized in that, The external support includes: The first support extends along the length of the bed frame and is located on one side of the bed frame along the width of the bed frame; the first support is one of the aforementioned support positions; The second support extends along the length of the bed frame and is located on the other side of the bed frame along the width of the bed frame; the second support is another support position. The connecting frame is located on one side of the bed along the length of the bed and is connected to the first bracket and the second bracket respectively.

3. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 2, characterized in that, The lifting mechanism includes: At least two first screw jacks are provided, and each first screw jack is spaced apart on the first support along the length of the bed; the input ends of each first screw jack are coaxially connected through a connecting shaft to form a continuous first input shaft; each first screw jack has a first pushing end that extends vertically out of the first support, and each first pushing end is connected to a first clamping structure. At least two second screw jacks are provided, and each second screw jack is spaced apart on the second support along the length of the bed; the input ends of each second screw jack are coaxially connected through a connecting shaft to form a continuous second input shaft; each second screw jack has a second pushing end that extends vertically out of the second support, and each second pushing end is connected to a second clamping structure; A transmission structure is mounted on the connecting frame and is poweredly connected to the first input shaft and the second input shaft respectively, for enabling the first input shaft and the second input shaft to rotate synchronously; The drive structure is poweredly connected to the first input shaft and is used to drive the first input shaft to rotate.

4. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 3, characterized in that, The first clamping structure and the second clamping structure have the same structure; Both the first clamping structure and the second clamping structure include: The lower long bar extends along the length of the bed and is connected to each of the first push ends or each of the second push ends; An upper pressure rod extends along the length of the bed and presses against the lower long bar; the upper pressure rod and the lower long bar are detachably connected by a locking device; a clamping space for clamping the edge of the support net is formed between the upper pressure rod and the lower long bar; The lower long bar and the upper pressure bar are combined to form the lifting clamping part.

5. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 3, characterized in that, The connecting frame includes: An intermediate fixing frame is located between the first bracket and the second bracket; The first carriage is slidably connected to the intermediate fixed frame and connected to the first bracket; The second carriage is slidably connected to the intermediate fixed frame and connected to the second bracket.

6. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 5, characterized in that, The transmission structure includes: A rotating drum is rotatably mounted on the first carriage and is arranged along the width direction of the bed; the rotating drum has a spline hole through a prism cavity; one end of the rotating drum is connected to the first input shaft gear; A rotating shaft is rotatably mounted on the second carriage and is arranged along the width direction of the bed; one end of the rotating shaft is connected to the second input shaft gear; the other end of the rotating shaft is coaxially connected to a splined shaft, which slides in fit with the splined hole.

7. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 2, characterized in that, The supply components include: The first drive roller is rotatably mounted on the first support, and its axis is set along the length of the bed. A first auxiliary roller is rotatably mounted on the first support, with its axis arranged along the length of the bed; the first auxiliary roller is located on the side of the first drive roller away from the bed; a first transmission channel is formed between the first auxiliary roller and the first drive roller; A guide roller is rotatably mounted on the first support, with its axis arranged along the length of the bed; the guide roller is located below the first drive roller; The unwinding shaft is rotatably mounted on the first support, with its axis set along the length of the bed. A first driving component is mounted on the first bracket and is poweredly connected to the first driving roller and / or the first auxiliary roller. The nursing mattress is wound on the unwinding shaft, and the free end of the nursing mattress enters the nursing area after passing through the guide roller and the first transfer channel in sequence.

8. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 7, characterized in that, The unwinding shaft is hung on the first bracket; The first bracket is provided with a hanging part for the unwinding shaft to be rotatably connected.

9. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 2, characterized in that, The storage component includes: The second drive roller is rotatably mounted on the second support, and its axis is set along the length of the bed. The second auxiliary roller is rotatably mounted on the second support, and its axis is set along the length of the bed; the second auxiliary roller is located on the side of the second drive roller away from the bed; a second transmission channel is formed between the second auxiliary roller and the second drive roller; The second drive component is mounted on the second bracket and is poweredly connected to the second drive roller and / or the second auxiliary roller. The storage box, located below the second transfer channel, has a storage cavity with an open top; The contaminated nursing mattress, which is exported from the nursing area, enters the storage cavity after passing through the second transfer channel.

10. The assistive device for changing nursing mattresses for disabled elderly people as described in claim 9, characterized in that, The second auxiliary roller is provided with a plurality of annular grooves, and each of the annular grooves is spaced apart along the length of the bed.

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