Auxiliary shifting device for getting out of bed

Abstract

The utility model belongs to the field of medical auxiliary equipment, and particularly relates to a getting-out-of-bed auxiliary shifting device which comprises a bed frame, a bed board, a lower limb conveying assembly and a handrail transmission assembly, the bed board comprises a back rising plate assembly and a lower limb bed board, and the back rising plate assembly is adjusted to achieve assisted back rising; the mattress is driven to move on the lower limb bed board from the middle of the bed to the tail of the bed through the movement of the lower limb conveying assembly, so that a person on the mattress moves towards the tail of the bed, and the person can get out of the bed in an auxiliary mode; in the moving process of the lower limb conveying assembly, the armrest conveying assembly moves in the same direction, and the moving speed of the second flexible conveying piece is not smaller than that of the first flexible conveying piece, so that a person on the mattress can keep a slightly forward leaning posture and cannot lean backwards, and safety and comfort in the transmission process are guaranteed. The device is simple in structure, stable and efficient in transmission, convenient and fast to operate, suitable for various people and convenient to popularize and popularize.

Description

Technical Field

[0001] The utility model relates to a medical auxiliary device, in particular to an auxiliary shifting device for getting out of bed. Background Art

[0002] Medical care and nursing for the elderly, especially those with limited mobility and those with lower limb disabilities, has become a social problem that must be solved. Among them, how to achieve independent getting in and out of bed is the most basic and important issue.

[0003] At present, the design of devices for solving human life problems has become a hot topic of research. Among them, nursing devices, as a kind of medical auxiliary equipment, are favored by more and more elderly people and disabled people. Most hospitals, nursing homes and families in China still use traditional hand-cranked nursing beds. Although there are service devices designed for the disabled in China, they cannot be well developed due to technical limitations and high prices.

[0004] There are mainly three types of existing auxiliary devices for getting out of bed. One is a traction rope or grabber, railing or other device installed on the side of the bed, which is used to get out of bed by leveraging force and the assistance of nursing staff. The operation of this device is laborious and requires assistance from others. It cannot achieve autonomous getting out of bed and is not safe enough. One is a simple device that uses a push rod or a back lifting board to assist getting up, but it can only achieve getting up by leveraging force and cannot achieve good assistance for getting out of bed. One is a device that uses a partition setting of the bed board, which is used for back lifting, supporting, and lowering legs, etc., and uses the driving cooperation of a hydraulic cylinder and a motor to adjust the height and tilt angle. This device can better achieve autonomous getting out of bed, but has a complex structure and cumbersome operation. It is not suitable for special groups such as the elderly, and the partition setting of the bed board is also difficult to apply to people of various body shapes.

[0005] In summary, it is particularly important to develop an auxiliary bed-getting-out-of-bed shifting device that can achieve autonomous getting out of bed and has a simple structure, convenient operation, and is safe and comfortable. Utility Model Content

[0006] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a device for assisting people in getting out of bed, which can help various groups of people, especially the elderly with limited mobility and people with lower limb disabilities, to get out of bed independently and ensure the safety and comfort of the shifting process. It is easy to operate, simple in structure, low in cost and has good universality.

[0007] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a bed-getting-out-of-bed auxiliary shifting device, comprising:

[0008] A bed body, the bed body comprising a bed frame and a bed board arranged on the bed frame, the bed board comprising a lower limb bed board and a back-lifting board assembly located on one side of the lower limb bed board, the back-lifting board assembly being used for driving to realize a back-lifting function;

[0009] A mattress, which is laid flat on the bed board;

[0010] Two sets of lower limb transmission components are respectively arranged on both sides of the bed body, and the lower limb transmission components include:

[0011] A first flexible transmission member, which is fixedly connected to the mattress to drive the mattress to move;

[0012] A driving component is installed on the bed frame and / or the bed board and connected with the first flexible transmission member to drive the first flexible transmission member to move.

[0013] According to an embodiment of the utility model, two groups of handrail transmission assemblies are further included, which are respectively arranged on both sides of the bed body, and the handrail transmission assembly includes:

[0014] An armrest bracket, which is fixedly mounted on the bed frame and located on one side of the bed board;

[0015] A plurality of transmission wheels rotatably mounted on the bed frame;

[0016] A second flexible transmission member is disposed around the transmission wheel and the handrail support;

[0017] Wherein, the speed of the second flexible conveying member is not less than the speed of the first flexible conveying member.

[0018] According to one embodiment of the utility model, the upper surface of the lower limb bed board or the lower limb bed board and the back board is made of anti-friction material, and / or an anti-friction pad is arranged under the mattress.

[0019] According to one embodiment of the utility model, the driving component comprises:

[0020] A driving wheel is rotatably mounted on the bed frame and is located below the bed board. One of the plurality of driving wheels in the handrail transmission assembly is installed concentrically with the driving wheel, and the radius of the driving wheel is not less than the radius of the driving wheel.

[0021] The driven wheel is at least partially installed on one side of the lower limb bed board, and the first flexible transmission member is arranged around the driving wheel and the driven wheel and around the bed board.

[0022] According to one embodiment of the utility model, the driving component comprises:

[0023] A first driving wheel is installed on a side of the backrest assembly away from the lower limb bed board;

[0024] A second driving wheel is mounted on the bed frame and is located below the lower limb bed board;

[0025] A plurality of driven wheels are mounted on the bed frame and the bed board, one end of the first flexible transmission member is mounted on the first driving wheel, one end is mounted on the second driving wheel, and the first flexible transmission member is arranged around the first driving wheel, the second driving wheel and the plurality of driven wheels;

[0026] Among them, one of the several transmission wheels in the handrail transmission assembly is concentrically installed with one of the driven wheels, and the radius is not less than the radius of the driven wheel.

[0027] According to an embodiment of the utility model, the back-lifting board assembly includes a back-lifting board and a connecting rod mechanism, and the back-lifting board is connected to the bed frame through the connecting rod mechanism.

[0028] According to an embodiment of the utility model, a tensioning device is further provided on the bed frame, and the tensioning device comprises a telescopic member, and the telescopic member is installed on the bed frame to detect and adjust the tension of the first flexible transmission member in real time.

[0029] According to an embodiment of the utility model, the tensioning device also includes a tensioning bracket and a tensioning wheel, one end of the tensioning bracket is fixedly mounted on the bed frame, and the other end is mounted with the tensioning wheel, and the tensioning wheel abuts against the surface of the first flexible transmission member.

[0030] According to one embodiment of the utility model, a limiting device is provided on the bed frame, and the limiting device includes a limiting bracket and a limiting wheel. The limiting bracket is fixedly mounted on the bed frame and is located at one end of the lower limb bed board close to the backrest board assembly. The limiting wheel is mounted on at least one end of the limiting bracket, and the limiting wheel abuts against the surface of the first flexible transmission member.

[0031] According to an embodiment of the utility model, a guide groove is provided on the surface of the armrest bracket that contacts the second flexible conveyor member, the shape of the guide groove matches the shape of the second flexible conveyor member, and the second flexible conveyor member is partially located in the guide groove. The utility model realizes back lifting through a back lifting plate and a connecting rod mechanism, and uses a lower limb conveyor assembly to transfer a person from the middle of the bed to the end of the bed through the mattress to achieve bed-out assistance, with high transmission efficiency and smooth transmission. The lower limb bed board adopts a friction-reducing plate or adds a friction-reducing pad between the mattress and the bed board to reduce resistance and improve transmission efficiency; during the transmission process, the armrest transmission assembly and the lower limb transmission assembly are simultaneously transmitted and provide auxiliary support. Since the speed of the second flexible conveyor member is not less than the movement speed of the first flexible conveyor member, the person on the mattress can maintain a slight forward tilt during the transmission process without leaning back, thereby ensuring the safety and comfort of the user when using the bed-out auxiliary shifting device; in addition, the device has a simple structure and is easy to operate, and is suitable for a variety of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A three-dimensional diagram of a bed-getting auxiliary shifting device in which the lower limb transmission assembly provided by the utility model is a fully enclosed structure;

[0034] Figure 2 A three-dimensional diagram of a bed-getting auxiliary shifting device in which the lower limb transmission assembly provided by the utility model is a fully enclosed structure;

[0035] Figure 3 A three-dimensional diagram of a bed-getting auxiliary shifting device in which the lower limb transmission assembly provided by the utility model is a semi-enclosed structure;

[0036] Figure 4 A three-dimensional diagram of a partial support of a bed frame of a bed-getting-out-of-bed auxiliary shifting device provided by the utility model.

[0037] Component number description:

[0038] 100, bed body; 200, bed frame; 300, bed board; 400, mattress; 500, lower limb transmission assembly; 600, armrest transmission assembly;

[0039] 310, back board assembly; 320, lower limb bed board;

[0040] 311, back plate; 312, support rod; 313, drive rod;

[0041] 510, driving component; 520, first flexible transmission member; 530, tensioning device; 540, limiting device;

[0042] 511, driving wheel; 512, driven wheel; 513, first driving wheel; 514, second driving wheel; 515, first driven wheel;

[0043] 531, electric push rod; 532, tensioning wheel; 533, tensioning bracket;

[0044] 541, a limiting bracket; 542, a first limiting wheel; 543, a second limiting wheel;

[0045] 610, handrail bracket; 620, second flexible transmission member; 630, driving friction wheel; 640, driven friction wheel. DETAILED DESCRIPTION

[0046] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0047] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0048] In modern society, medical care and nursing for the elderly, especially those with limited mobility and those with lower limb disabilities, has become a social problem that must be solved. Among them, how to achieve safe and autonomous getting in and out of bed is the most basic and important issue. However, existing bed-getting-out assistive devices either require assistance from others to get out of bed, or have complex structures and cumbersome operations, and cannot be well adapted to a variety of groups, especially the elderly. Therefore, it is particularly important to develop a bed-getting-out assistive shifting device that can achieve autonomous getting out of bed and has a simple structure, convenient operation, and is safe and comfortable.

[0049] See also Figure 1The utility model provides an auxiliary shifting device for getting out of bed, comprising: a bed body 100, comprising a bed frame 200 and a bed board 300; the bed frame 200 is used to support and connect other components; the bed board 300 is arranged on the bed frame 200, and serves as a supporting plane and a movement plane to realize the back-lifting and shifting actions of the device, the bed board 300 comprises a back-lifting board assembly 310 and a lower limb bed board 320, the lower limb bed board 320 is fixed on the bed frame 200, the back-lifting board assembly 310 is connected to the bed frame 200 and can adjust the angle within a certain range to realize the back-lifting action; the mattress 400 is laid flat on the lower limb bed board 320, and the movement of the mattress 400 is used to drive the person on the mattress 400 to move; the lower limb transmission assembly 500 is arranged between the bed frame 200 and the mattress 400, and comprises a driving component 510 and a first flexible transmission component 520, the first flexible transmission component 520, and the first flexible transmission component 520 is provided between the bed frame 200 and the mattress 400. The first flexible transmission member 520 is fixed on the mattress 400, and the driving member 510 is rotatably installed on the bed frame 200 and / or the bed board 300, and is connected to the first flexible transmission member 520. The driving member 510 provides a driving force to drive the first flexible transmission member 520 to move, thereby driving the mattress 400 to move longitudinally on the lower limb bed board 320 and transferring the person on the mattress 400 to the end of the bed, thereby realizing auxiliary displacement of the user to get out of bed. When getting out of bed from the end of the bed, the user does not need to turn around, etc., and there is no difficulty in movement, which is convenient to use; the armrest transmission assembly 600 is used to provide support and move in the same direction at a speed not less than that of the lower limb transmission assembly 500 during the movement of the lower limb transmission assembly 500, so as to adjust the posture of the user to ensure that he will not lean back during the process of getting out of bed, thereby ensuring the safety and comfort of the user when using the auxiliary displacement device for getting out of bed.

[0050] In one embodiment of the present invention, please refer to Figure 1 The bed frame 200 can be placed on the ground or other required platform. The upper surface of the bed frame 200 is in contact with the lower surface of the lower limb bed board 320, which is used to support and place the lower limb bed board 320. The bed frame 200 is connected to the back-lifting board assembly 310, which is used to support the back-lifting board assembly 310 to realize the back-lifting action. There is a support structure on the bed frame 200, which can provide support and connection for the lower limb transmission assembly 500.

[0051] In one embodiment of the present invention, please refer to Figure 1 to Figure 2The bed board 300 includes a back-lifting board assembly 310 and a lower limb bed board 320. The lower limb bed board 320 is fixed on the bed frame 200. The back-lifting board assembly 310 includes a back-lifting board 311 and a connecting rod mechanism. The back-lifting board 311 is connected to the bed frame 200 through the connecting rod mechanism. The connecting rod mechanism includes a support rod 312 and a driving rod 313. One end of the support rod 312 is hinged to the back-lifting board 311, and the other end is hinged to the driving rod 313; one end of the driving rod 313 is hinged to one end of the support rod 312, and the other end is hinged to the bed frame 200. The angle of the back-lifting board 311 can be adjusted through the connecting rod mechanism. When the backrest board 311 is at the same level as the lower limb bed board 320, the person can lie flat on the bed board 300. The backrest board 311 can be slowly lifted up by the connecting rod mechanism and adjusted to a position at a certain angle with the lower limb bed board 320, thereby lifting the upper body of the user, achieving the effect of getting up, and making the person on the mattress 400 change from a lying position to a sitting position, completing the back-lifting action, and then through the action of the lower limb transmission component 500, the auxiliary displacement is achieved on the lower limb bed board 320 to transfer the human body from the middle of the bed to the end of the bed, so as to achieve assisted getting out of bed. Similarly, the backrest board 311 can also be adjusted from a position at a certain angle with the lower limb bed board 320 to a position horizontal with the lower limb bed board 320 by the connecting rod mechanism, that is, the user can change from a sitting position to a lying position by lowering the backrest board 311.

[0052] In one embodiment of the present invention, please refer to Figure 1 The upper surface of the lower limb bed board 320 is made of anti-friction material, which can effectively reduce the friction between the mattress 400 and the lower limb bed board 320 during exercise and improve the transmission efficiency.

[0053] In one embodiment of the present invention, please refer to Figure 1 The backing plate 311 can be an integral backing plate, or it can be composed of a large backing plate and a plurality of small backing plates. The size of the backing plate 311 can be adjusted by a plurality of small backing plates to meet the needs of different groups of people. The upper surface of the backing plate 311 can also be made of anti-friction material to reduce the resistance during the transmission process, improve the transmission efficiency and enhance the comfort of the device.

[0054] In one embodiment of the present invention, please refer to Figure 1The mattress 400 is laid flat on the lower limb bed board 320 or the lower limb bed board 320 and the back board 311. The movement of the lower limb transmission component 500 drives the mattress 400 to move from the middle of the bed to the end of the bed along the length direction of the bed frame 200, thereby shifting the person on the mattress 400 to the end of the bed, and assisting in getting out of bed. A friction-reducing pad can also be fixedly connected to the side of the mattress 400 close to the bed board 300, and the lower limb transmission component 500 is fixed to the friction-reducing pad. The movement of the friction-reducing pad drives the movement of the mattress 400, thereby shifting the person on the mattress 400 to the end of the bed, and assisting in getting out of bed. The friction-reducing pad can reduce friction during movement and improve transmission efficiency.

[0055] In one embodiment of the present invention, please refer to Figure 1 , two groups of lower limb transmission components 500 are respectively distributed on both sides of the bed body 100 along the length direction of the bed frame 200, and the lower limb transmission components 500 include a driving component 510 and a first flexible transmission component 520, and the driving component 510 is arranged on the bed frame 200. When the lower limb transmission component 500 is a fully enclosed structure arranged around the bed board 300 as a whole, the driving component 510 includes a driving wheel 511 and a driven wheel 512. The driving wheel 511 is rotatably mounted on the bed frame 200 and is located below the bed board 300, and is used to provide power to drive the first flexible transmission component 520 to move; the driven wheel 512 provides support and transmits power to the first flexible transmission component 520; the first flexible transmission component 520 is arranged around the driving wheel 511 and the driven wheel 512, and is fixed on the mattress 400, and is used to drive the mattress 400 to move when the driving wheel 511 moves, thereby realizing the displacement of the person on the mattress 400. When the driving wheel 511 rotates from the head of the bed to the foot of the bed, the first flexible transmission member 520 is driven to move around the driving wheel 511 and the driven wheel 512. At the same time, the driven wheel 512 provides support and transmits power to the first flexible transmission member 520 during the movement. The first flexible transmission member 520 moves smoothly and drives the mattress 400 to move longitudinally, and the person on the mattress 400 is transferred from the middle of the bed to the end of the bed, thereby realizing the auxiliary shifting function. When the lower limb transmission component 500 reaches the end of the bed, the movement stops, and the person at the end of the bed can get out of bed autonomously. The whole process is efficient and smooth. Similarly, when the driving wheel 511 rotates in the opposite direction, the lower limb transmission component 500 can achieve the opposite direction of movement, that is, from the end of the bed to the middle of the bed, and transfer the person sitting at the end of the bed to the middle of the bed, and then use the lowering of the backboard component 310 to assist the person sitting up to lie down, and the function of assisting getting into bed can be realized.

[0056] In one embodiment of the present invention, please refer to Figure 1In order to realize that the driving component 510 drives the mattress 400 to move longitudinally, the first flexible transmission member 520 can be arranged around the bed board 300, the first flexible transmission member 520 moves around the bed board 300, and the driven wheels 512 can be arranged at both ends of the bed board 300 and / or on the bed frame 200. The first flexible transmission member 520 can also be arranged around the lower limb bed board 320, in which case the first flexible transmission member 520 moves around the lower limb bed board 320, and the driven wheels 512 can be arranged at both ends of the lower limb bed board 320 and / or on the bed frame 200.

[0057] In one embodiment of the present invention, please refer to Figure 1 When the backboard 311 is composed of a large backboard and a plurality of small backboards, driven wheels 512 are provided at one end of the backboard 311 away from the lower limb bed board 320 and on each small backboard, respectively located at the two ends of the backboard 311.

[0058] In one embodiment of the present invention, please refer to Figures 1 to 3The lower limb transmission assembly 500 can also be a semi-enclosed structure partially arranged around the bed board 300. In this case, the driving component 510 includes a first driving wheel 513, a second driving wheel 514 and a plurality of first driven wheels 515. The first driving wheel 513 is installed on the side of the backboard 311 away from the lower limb bed board 320, and can be set on the backboard 311 or above or below the plane of the backboard 311; the second driving wheel 514 is installed on the bed frame 200 and is located below the lower limb bed board 320; at least one first driven wheel 515 is installed on the bed frame 200 below the end of the lower limb bed board 320 away from the backboard 311, and multiple first driven wheels 515 can also be installed on the end of the lower limb bed board 320 away from the backboard 311 and other suitable positions on the bed frame 200 for transmission; one end of the friction-reducing pad or the first flexible transmission member 520 is installed on the first driving wheel 513, and the other end is installed on the second driving wheel 514, and is arranged around the first driving wheel 513, the second driving wheel 514 and the first driven wheel 515, that is, the first flexible transmission member 520 is arranged semi-around the bed board 300. The first driving wheel 513 and the second driving wheel 514 are respectively controlled to rotate by two motors. When the first driving wheel 513 rotates from the head of the bed to the foot of the bed, the second driving wheel 514 rotates in the same direction. At this time, the first flexible transmission member 520 at the first driving wheel 513 is loosened, and the first flexible transmission member 520 at the second driving wheel 514 is tightened. The first driven wheel 515 supports and transmits the movement, so that the first flexible transmission member 520 moves longitudinally from the head of the bed to the foot of the bed, driving the mattress 400 or driving the mattress 400 to move longitudinally through the friction-reducing pad, and transferring the person on the mattress 400 from the middle position of the bed to the foot of the bed, realizing auxiliary displacement of getting out of bed. When moving to a certain position, the first driving wheel 513 and the second driving wheel 514 stop rotating, and the person on the mattress 400 can get out of bed autonomously. Similarly, when the first driving wheel 513 and the second driving wheel 514 rotate in opposite directions, reverse movement can be achieved. At this time, the first flexible transmission member 520 at the first driving wheel 513 is tightened, and the first flexible transmission member 520 at the second driving wheel 514 is loosened, which can drive the mattress 400 to move from the end of the bed to the middle of the bed, thereby transferring the person on the mattress 400 from the end of the bed to the middle of the bed, achieving the auxiliary shifting of getting on the bed, and then using the lowering of the back-lifting board assembly 310 to assist the person who sits up to lie down, to achieve the auxiliary function of getting on the bed. In other embodiments, the first flexible transmission member 520 in the lower limb transmission assembly 500 of the semi-enclosed structure can also be arranged partially around the lower limb bed board 320. In this case, the first driving wheel 513 is arranged on the side of the lower limb bed board 320 close to the back-lifting board assembly 310, and can be arranged on the lower limb bed board 320 or above or below the plane of the lower limb bed board 320. The auxiliary shifting function can also be achieved by the movement of the mattress 400 on the lower limb bed board 320.

[0059] In one embodiment of the present invention, please refer to Figures 1 to 3 The shaft at the end of the bed board 300 can be a fixed structure, the driving component 510 is installed at both ends thereof, and the first flexible transmission member 520 is connected to the driving component 510 for transmission. In other embodiments, the shaft at the end of the bed board 300 can also be a rolling shaft, and the roller directly serves as the driving component 510 and is connected to the first flexible transmission member 520 to realize the transmission function.

[0060] In one embodiment of the present invention, please refer to Figures 1 to 4 The lower limb transmission component 500 also includes a tensioning device 530 fixed on the bed frame 200 and connected to the first flexible transmission member 520 in a transmission manner, which is used to maintain the tension of the first flexible transmission member 520 during the transmission process to prevent loosening and falling off, thereby ensuring the stability of the transmission process. The tensioning device 530 includes a telescopic member and a tensioning wheel 532. The tension of the first flexible transmission member 520 is detected in real time by a sensor provided on the telescopic member, and the first flexible transmission member 520 is adjusted to maintain the tension through the telescopic member or in conjunction with the tensioning wheel 532 to achieve normal operation and prevent the first flexible transmission member 520 from loosening and falling off during operation.

[0061] In one embodiment of the present invention, please refer to Figures 1 to 4 The telescopic member is, for example, an electric push rod 531, one end of which is fixed on the bed frame 200, and the other end of which is equipped with a tensioning wheel 532; the tensioning wheel 532 abuts against the surface of the first flexible transmission member 520, and acts as a driven wheel to provide support and transmit motion, and at the same time works together with the electric push rod 531 to realize the tensioning function. During the process of lifting or shifting, the shape of the first flexible transmission member 520 will continue to change due to the change in the position of the lifting plate 311. In order to ensure that the first flexible transmission member 520 remains tensioned and operates normally during the operation of the lower limb transmission assembly 500, the tensioning device 530 is required to be able to respond to the changes of the first flexible transmission member 520 in a timely manner and make timely adjustments. A pressure sensor can be set on the electric push rod 531 to detect the pressure exerted on the tensioning wheel 532 on the electric push rod 531 in real time. Since the tensioning wheel 532 is connected to the first flexible transmission member 520 as a driven wheel, the pressure exerted on the tensioning wheel 532 can be used to determine whether the first flexible transmission member 520 is tensioned, and then the position of the tensioning wheel 532 can be adjusted through the movement of the electric push rod 531, thereby adjusting the first flexible transmission member 520. The tensioning force of the first flexible transmission member 520 is detected and adjusted through the joint action of the electric push rod 531 and the tensioning wheel 532.

[0062] In one embodiment of the present invention, please refer to Figures 1 to 4The tensioning device 530 further includes two tensioning brackets 533, which are respectively arranged on both sides of the electric push rod 531. One end of the tensioning bracket 533 is fixed on the bed frame 200, and the other end is equipped with a tensioning wheel 532. The tensioning wheel 532 on the tensioning bracket 533 and the tensioning wheel 532 on the electric push rod 531 are respectively located on the two sides of the first flexible transmission member 520. The tensioning wheel 532 serves as a driven wheel to provide support and transmission for the first flexible transmission member 520, and at the same time, it works together with the electric push rod 531 to realize the tensioning function. When the first flexible transmission member 520 is working, the pressure sensor on the electric push rod 531 detects the force on the tensioning wheel 532 on the electric push rod 531. When the force is lower than the set value range, the electric push rod 531 works to push the push rod upward to achieve tensioning of the first flexible transmission member 520, so that the force reaches the set value range; when the force is higher than the set value range, the electric push rod 531 works to push the push rod downward to relax the first flexible transmission member 520, so that the force reaches the set value range. During the lifting or shifting process, the tensioning device 530 can be used to detect and adjust the tensioning force of the first flexible transmission member 520 in real time to prevent the first flexible transmission member 520 from loosening or falling off, thereby ensuring safe and stable transmission. In other embodiments, the telescopic rod can also be set as a cylinder telescopic rod, a screw rod or other structures, and the real-time measurement of the tension of the first flexible transmission member 520 can be directly or indirectly achieved through the sensor on the telescopic rod, and the real-time adjustment of the tensioning force of the first flexible transmission member 520 can be achieved independently or in conjunction with the tensioning wheel 532.

[0063] In one embodiment of the present invention, please refer to Figures 1 to 4 The lower limb transmission assembly 500 also includes a limiting device 540 fixed on the bed frame 200 and transmission-connected to the first flexible transmission member 520, which is located on one end of the lower limb bed board 320 close to the backrest board 311, and is used to limit the position of the first flexible transmission member 520 to prevent deviation, slipping, etc. during movement.

[0064] In one embodiment of the present invention, please refer to Figures 1 to 4In the lower limb transmission assembly 500 of the fully enclosed structure, the limiting device 540 includes a limiting bracket 541, a first limiting wheel 542 and a second limiting wheel 543. The limiting bracket 541 is fixed on the bed frame 200 and fixedly installed at one end of the lower limb bed board 320 close to the back plate 311 along the height direction of the bed frame 200. The first limiting wheel 542 and the second limiting wheel 543 are respectively installed at both ends of the limiting bracket 541 and abut against the surface of the first flexible transmission member 520 to limit its extension direction. The first limiting wheel 542 is set at the limiting bracket 541 close to the upper plane of the lower limb bed board 320, and the second limiting wheel 543 is set at one end of the limiting bracket 541 away from the lower limb bed board 320. The first flexible transmission member 520 is connected in transmission around the first limiting wheel 542 and the second limiting wheel 543. During the process of assisting the back-lifting, due to the change in the position of the back-lifting board 311, the first flexible transmission member 520 will bounce up and shift at the upper plane of the lower limb bed board 320 near the back-lifting board 311, and will also bounce up at the lower plane of the lower limb bed board 320 near the back-lifting board 311, thereby causing friction with the lower plane of the bed board 300, affecting the transmission stability. The first limiting wheel 542 and the second limiting wheel 543 can respectively limit the position of the first flexible transmission member 520 at the upper plane and the lower plane of the lower limb bed board 320 near the back-lifting board 311, preventing the first flexible transmission member 520 from deflecting or rubbing during the movement of the back-lifting board 311, thereby affecting the efficient and stable transmission process; at the same time, the first limiting wheel 542 and the second limiting wheel 543 act as driven wheels to provide support and transmit power to the first flexible transmission member 520, ensuring the stability and efficiency of the transmission process.

[0065] In one embodiment of the present invention, please refer to Figures 1 to 4 In the semi-enclosed structure of the lower limb transmission component 500, the limiting device 540 includes a limiting bracket 541 and a first limiting wheel 542. The first limiting wheel 542 limits the position of the first flexible transmission member 520 on the upper plane of the lower limb bed board 320 close to one end of the backlifting plate 311, thereby preventing the first flexible transmission member 520 from bouncing up and deviating during the movement of the backlifting plate 311, thereby affecting the efficient and stable transmission process. At the same time, as a driven wheel, it provides support for the first flexible transmission member 520 and transmits power, thereby ensuring the stability and efficiency of the transmission process.

[0066] In one embodiment of the present invention, please refer to Figures 1 to 3, two groups of armrest transmission components 600 are respectively distributed on both sides of the bed body 100 along the length direction of the bed frame 200, including an armrest bracket 610, a second flexible transmission member 620 and a plurality of transmission wheels. The armrest bracket 610 is fixedly mounted on the bed frame 200 and is located on one side of the bed board 300 to provide support during the displacement process; the second flexible transmission member 620 is arranged around the plurality of transmission wheels and the armrest bracket 610; a guide groove is arranged on the surface of the armrest bracket 610 that contacts the second flexible transmission member 620, and its shape matches the shape of the second flexible transmission member 620. The second flexible transmission member 620 is partially located in the guide groove, and the second flexible transmission member 620 is limited by the guide groove to prevent the second flexible transmission member 620 from deflecting during the movement process, thereby ensuring the stability of the transmission; the plurality of transmission wheels are used to provide support and driving force for the second flexible transmission member 620 and transmit power to achieve the smooth movement of the second flexible transmission member 620. When the lower limb transmission assembly 500 moves to drive the mattress 400 to move and transmit the person on the mattress 400 to the end of the bed, the second flexible transmission member 620 in the armrest transmission assembly 600 moves simultaneously with the first flexible transmission member 520 in the same direction, and the speed of the second flexible transmission member 620 is not less than the speed of the first flexible transmission member 520. During the movement, the person on the mattress 400 will only lean forward slightly and will not lean back, thereby ensuring safety when assisting in getting out of bed.

[0067] In one embodiment of the present invention, please refer to Figures 1 to 3 The several transmission wheels of the handrail transmission assembly 600 include a driving friction wheel 630 and a driven friction wheel 640. The driving friction wheel 630 is installed on the shaft concentrically with the driving wheel 511 or the first driven wheel 515. The radius of the driving friction wheel 630 is not less than the radius of the driving wheel 511 or the first driven wheel 515. The driven friction wheel 640 is installed on the bed frame 200 or at both ends of the bed frame 200 and the handrail support 610 for supporting and transmitting power. The driving wheel 511 and the driving friction wheel 630 are installed concentrically, and the angular velocity during movement is the same, but the radii of the two are different. Therefore, the linear velocity of the driving friction wheel 630 is not less than the linear velocity of the driving wheel 511 or the first driven wheel 515. Therefore, the movement speed of the second flexible transmission member 620 is not less than the movement speed of the first flexible transmission member 520, which ensures safety and comfort during displacement.

[0068] In one embodiment of the present invention, please refer to Figures 1 to 3When the lower limb transmission assembly 500 is a fully enclosed structure, the person can lie flat on the bed board 300 when the back-lifting plate 311 is placed flat on the bed frame 200. When it is necessary to get out of bed, the back-lifting plate 311 is first driven by the connecting rod mechanism in the back-lifting plate assembly 310 to lift and rotate a certain angle to drive the human body to achieve assisted back-lifting, and the person changes from lying flat to sitting up. At this time, the first flexible transmission member 520 is driven by the rotation of the active wheel 511 to move around the bed board 300 from the head of the bed to the foot of the bed, and then the mattress 400 is driven to move toward the foot of the bed, so that the person on the mattress 400 is transferred from the middle of the bed to the foot of the bed, and the bed is assisted to get out of bed. The mattress can be a whole, rather than a segmented structure, to ensure the comfort of use; in back-lifting and shifting During the process, the pressure sensor on the electric push rod 531 in the tensioning device 530 detects the pressure of the tensioning wheel 532 to determine whether the first flexible transmission member 520 is tensioned, and the tension of the first flexible transmission member 520 is adjusted in time by the joint action of the electric push rod 531 and the tensioning wheel 532 to prevent the first flexible transmission member 520 from loosening or falling off during the movement. The position of the first flexible transmission member 520 is limited by the limit device 540 and the movement direction is adjusted to prevent the first flexible transmission member 520 from shifting or rubbing against the bed board 300 due to the upward bounce of the first flexible transmission member 520 during the back lifting process. At the same time, it acts as a driven wheel to transmit the movement of the first flexible transmission member 520 to ensure the smooth, safe and efficient transmission process. In other embodiments, the back lifting board assembly 311 may not be provided to assist the back lifting. In this case, the bed board 300 may be a separate or integral structure. When the user lies flat on the mattress 400, the lower limb transmission assembly 500 is directly used to transmit the person to the end of the bed through the mattress 400 to assist in getting out of bed.

[0069] In one embodiment of the present invention, please refer to Figures 1 to 3 When the lower limb transmission assembly 500 is a semi-enclosed structure, the back-lifting process remains unchanged. After the back-lifting is completed, the first driving wheel 513 and the second driving wheel 514 are driven by the motor to rotate simultaneously in the direction from the head of the bed to the foot of the bed. At this time, the first flexible transmission member 520 at the first driving wheel 513 is loosened, and the first flexible transmission member 520 at the second driving wheel 514 is tightened. The first flexible transmission member 520 moves as a whole from the head of the bed to the foot of the bed and drives the mattress 400 fixed thereon or drives the mattress 400 to move through the friction-reducing pad, so that the mattress 400 0 is transferred from the middle position of the bed to the end of the bed, and the entire driving device has a simple structure; during the process of lifting and shifting, the tensioning device 530 is used to detect and adjust in real time to keep the first flexible transmission member 520 tensioned; the position of the first flexible transmission member 520 is limited by the limiting device 540 and the movement direction is adjusted to prevent the first flexible transmission member 520 from shifting or rubbing against the bed board 300 due to the first flexible transmission member 520 bouncing upward during the lifting process, and at the same time, it acts as a driven wheel to transmit the movement of the first flexible transmission member 520, thereby ensuring the smoothness, safety and efficiency of the transmission process.

[0070] While the lower limb transmission assembly 500 realizes the auxiliary displacement of getting out of bed, the armrest transmission assembly 600 can provide support for the person on the mattress 400 and adjust his posture. The driving friction wheel 630 rotates synchronously with the driving wheel 511 or the first driven wheel 515, driving the second flexible transmission member 620 to move simultaneously in the same direction as the first flexible transmission member 520. Since the driving wheel 511 and the driving friction wheel 630 are concentrically installed on the shaft rod, the angular velocity of the two is the same, and the radius of the driving friction wheel 630 is slightly not less than the radius of the driving wheel 511, so the linear velocity of the driving friction wheel 630 is not less than the linear velocity of the driving wheel 511, so that the movement speed of the second flexible transmission member 620 is not less than the movement speed of the first flexible transmission member 520, which can ensure that the posture of the person on the mattress 400 is slightly forward and not backward, ensuring the safety and comfort of the displacement process. When the person on the mattress 400 is displaced to the end of the bed, the movement of the lower limb transmission assembly 500 and the armrest transmission assembly 600 stops, and the user can get out of bed autonomously at this time.

[0071] Similarly, the utility model can also be used to assist people in getting into bed. When a person sits at the end of the bed, the driving component 510 in the lower limb transmission assembly 500 rotates in the opposite direction to drive the first flexible transmission component 520 to move and transmit the person on the mattress 400 in the opposite direction, that is, from the end of the bed to the middle of the bed. At the same time, the second flexible transmission component 620 also moves in the same direction to provide support while ensuring that the person does not lean forward during the movement. After the person is moved to the middle of the bed, he or she can lean on the backrest board 311, and the backrest board 311 is lowered from a position at a certain angle to the lower limb bed board 320 to a position horizontal with the lower limb bed board 320, so that the user can change from a sitting position to a lying position, and assisting people in getting into bed can be completed.

[0072] The utility model uses a connecting rod mechanism to adjust the position of the back-lifting plate 311 to achieve back-lifting by leveraging, and the first flexible transmission member 520 in the lower limb transmission assembly 500 drives the mattress 400 to achieve longitudinal movement from the head of the bed to the foot of the bed, so that the person on the mattress 400 can be shifted to an appropriate position along the longitudinal direction to achieve assisted getting out of bed, the transmission process is efficient and stable, and the transmission noise is small. During the back-lifting and shifting movement, the tensioning device 530 and the limiting device 540 are used to ensure the stability and safety of the transmission; during the longitudinal movement of the first flexible transmission member 520, the second flexible transmission member 620 moves in the same direction at a speed not less than that of the first flexible transmission member 520, providing support and assistance while ensuring that the posture of the person on the mattress 400 remains forward and does not lean back, achieving a safe and comfortable back-lifting, shifting, and assisted getting out of bed process. At the same time, the utility model can also achieve the function of assisting getting into bed by adjusting the movement direction of the driving component 510. The entire device has a simple structure, is easy to operate, safe and reliable, can be suitable for use by a variety of people, and has low cost, and is easy to popularize and promote.

[0073] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

[0074] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A device for assisting in getting out of bed, characterized in that: include: A bed body, the bed body comprising a bed frame and a bed board arranged on the bed frame, the bed board comprising a lower limb bed board and a back-lifting board assembly located on one side of the lower limb bed board, the back-lifting board assembly being used for driving to realize a back-lifting function; A mattress, which is laid flat on the bed board; Two sets of lower limb transmission components are respectively arranged on both sides of the bed body, and the lower limb transmission components include: A first flexible transmission member, which is fixedly connected to the mattress to drive the mattress to move; A driving component is installed on the bed frame and / or the bed board and connected with the first flexible transmission member to drive the first flexible transmission member to move.

2. The bed-getting-out-of-bed assisting shifting device according to claim 1, characterized in that: It also includes two groups of handrail transmission assemblies, which are respectively arranged on both sides of the bed body, and the handrail transmission assembly includes: An armrest bracket, which is fixedly mounted on the bed frame and located on one side of the bed board; A plurality of transmission wheels rotatably mounted on the bed frame; A second flexible transmission member is disposed around the transmission wheel and the handrail support; Wherein, the speed of the second flexible conveying member is not less than the speed of the first flexible conveying member.

3. The bed-getting-out-of-bed assisting shifting device according to claim 1, characterized in that: The upper surface of the lower limb bed board or the lower limb bed board and the back board is made of anti-friction material, and / or an anti-friction pad is arranged under the mattress.

4. The bed-getting-out-of-bed assisting shifting device according to claim 2, characterized in that: The driving component comprises: A driving wheel is rotatably mounted on the bed frame and is located below the bed board. One of the plurality of driving wheels in the handrail transmission assembly is installed concentrically with the driving wheel, and the radius of the driving wheel is not less than the radius of the driving wheel. The driven wheel is at least partially installed on one side of the lower limb bed board, and the first flexible transmission member is arranged around the driving wheel and the driven wheel and around the bed board.

5. The bed-getting-out-of-bed assisting shifting device according to claim 2, characterized in that: The driving component comprises: A first driving wheel is installed on a side of the backrest assembly away from the lower limb bed board; A second driving wheel is mounted on the bed frame and is located below the lower limb bed board; A plurality of driven wheels are mounted on the bed frame and the bed board, one end of the first flexible transmission member is mounted on the first driving wheel, one end is mounted on the second driving wheel, and the first flexible transmission member is arranged around the first driving wheel, the second driving wheel and the plurality of driven wheels; Among them, one of the several transmission wheels in the handrail transmission assembly is concentrically installed with one of the driven wheels, and the radius is not less than the radius of the driven wheel.

6. The bed-getting-out-of-bed assisting shifting device according to claim 1, characterized in that: The back-lifting plate assembly comprises a back-lifting plate and a connecting rod mechanism, and the back-lifting plate is connected to the bed frame through the connecting rod mechanism.

7. The bed-getting-out-of-bed assisting shifting device according to claim 4 or 5, characterized in that: The bed frame is also provided with a tensioning device, which includes a telescopic member, and the telescopic member is installed on the bed frame to detect and adjust the tension of the first flexible transmission member in real time.

8. The bed-getting-out-of-bed assisting shifting device according to claim 7, characterized in that: The tensioning device also includes a tensioning bracket and a tensioning wheel. One end of the tensioning bracket is fixedly mounted on the bed frame, and the other end is mounted with the tensioning wheel, and the tensioning wheel abuts against the surface of the first flexible transmission member.

9. The bed-getting-out-of-bed assisting shifting device according to claim 4 or 5, characterized in that: A limiting device is provided on the bed frame, and the limiting device includes a limiting bracket and a limiting wheel. The limiting bracket is fixedly mounted on the bed frame and is located at one end of the lower limb bed board close to the backrest board assembly. The limiting wheel is mounted on at least one end of the limiting bracket, and the limiting wheel abuts against the surface of the first flexible transmission member.

10. The bed-getting-out-of-bed assisting shifting device according to claim 2, characterized in that: A guide groove is provided on the surface of the handrail bracket that contacts the second flexible conveying member. The shape of the guide groove matches the shape of the second flexible conveying member, and a portion of the second flexible conveying member is located in the guide groove.

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