Multifunctional shifting device

Abstract

The utility model provides a multifunctional shifting device which comprises a shifting base, a lower body adjusting mechanism, a supporting mechanism, a seat adjusting mechanism and an upper body adjusting mechanism, and the shifting base is of a frame structure and can move on a working face, support all the mechanisms and assist a patient in moving; the rotation of a plurality of groups of parallel four-bar mechanisms in the lower body adjusting mechanism drives the supporting mechanism to realize free movement in the horizontal and / or vertical direction, so as to assist the patient to switch the sitting posture; the seat adjusting mechanism comprises a fourth driving part and a supporting cushion, the supporting cushion is driven by the fourth driving part to move in the length direction, and the patient can be transferred between the seat and the supporting cushion; the upper body adjusting mechanism provides support and lifts a person away from the seat or supports the cushion in the sitting and standing conversion and displacement process, is cooperated with other mechanisms to realize sitting and standing conversion, can be used as a rehabilitation walking training auxiliary tool or an advancing auxiliary tool to assist displacement, and is efficient, safe, wide in application range, suitable for various people and diversified in use scene.

Description

Technical Field

[0001] The utility model belongs to the technical field of rehabilitation medical auxiliary equipment, and particularly relates to a multifunctional shifting device. Background Art

[0002] Sit-to-stand (STS) and bed-to-toilet transfers are common activities in daily life. However, elderly people, due to aging or various diseases such as stroke, knee osteoarthritis, polymyositis, muscle disorders, and Parkinson's disease, experience physical decline and lower limb dysfunction, making it difficult for them to independently complete sit-to-stand transitions. Therefore, they need lower limb rehabilitation devices with multiple functions, such as transfer and walking assistance, to help them successfully complete STS exercises and lower limb rehabilitation training.

[0003] Sit-to-stand assistive devices can assist the elderly in completing basic transfers, walking, or helping them recover lower limb function. Based on the functional requirements to be achieved, the following types of device designs are currently being studied in this field:

[0004] Lift-type sit-to-stand assistive devices use a long bar placed under the patient's armpits to lift or tilt the patient, or a sling fixed to the patient's body to suspend the patient, allowing the patient to transition from sitting to standing. This design has the advantages of a simple structure and efficient movement, but it also has the disadvantages of a single movement trajectory and low safety. Furthermore, the patient bears a heavy burden during operation.

[0005] Exoskeleton-type assistive devices for sit-to-stand transitions utilize mechanical structures placed on the patient's legs to control lower limb movement, enabling the transition from sitting to standing. While this design offers advantages such as stable operation and a compact footprint, it also presents challenges such as high cost and a poor fit for the patient's joints. Most critically, the misalignment between the mechanism and human movement can directly lead to leg joint pain.

[0006] Straddle-type assistive devices for sit-to-stand transitions use a seat bar placed under the patient's hips to lift the patient. The seat lift is typically vertical or single-bar. This design offers advantages in terms of minimal burden on the patient and a simple structure. However, its disadvantages include low movement efficiency, a large lifting mechanism, and difficulty transferring the patient from the seat to the seat bar.

[0007] In summary, current products have common problems such as low movement efficiency, large space occupation, heavy burden on patients' bodies, and difficulty for patients to transfer to the device. Utility Model Content

[0008] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a multifunctional shifting device that can realize sit-to-stand conversion and assist in shifting when the patient is sitting on various seats without causing damage to the patient. It can adapt to the needs of patients with different body shapes, ensure the stability of the mechanism in each movement stage, have a simple structure, high working efficiency and high comfort.

[0009] To achieve the above-mentioned and other related purposes, the present invention provides a multifunctional shifting device, which is characterized by comprising:

[0010] A shift base is provided on a first movement plane;

[0011] a lower body adjustment mechanism connected to the displacement base and arranged in a second motion plane, the second motion plane being perpendicular or approximately perpendicular to the first motion plane;

[0012] a supporting mechanism connected to an end of the lower body adjustment mechanism away from the displacement base and moving in the second motion plane;

[0013] a seat adjustment mechanism, slidably connected to the support mechanism and movable laterally relative to the support mechanism in the second motion plane;

[0014] The upper body adjustment mechanism is connected to a side of the support mechanism away from the displacement base, and moves and / or rotates relative to the support mechanism in the second motion plane.

[0015] According to an embodiment of the present invention, the lower body adjustment mechanism includes:

[0016] an adjustment assembly connected to the shift base;

[0017] A driving assembly, provided on the adjusting assembly and / or the shifting base and / or the supporting mechanism;

[0018] The supporting mechanism is connected to one end of the adjusting component away from the shifting base, and moves in the second motion plane under the drive of the driving component.

[0019] According to an embodiment of the present invention, the adjustment assembly is a connecting rod assembly connected to the shift base, comprising:

[0020] A connecting rod connected to the shift base;

[0021] Two first connecting rods arranged in parallel and rotatably connected to the connecting rod;

[0022] a first fixing member, rotatably connected to one end of the two first connecting rods away from the connecting rod;

[0023] Two second connecting rods arranged in parallel and rotatably connected to the first fixing member;

[0024] a second fixing member, rotatably connected to one end of the two second connecting rods away from the first fixing member;

[0025] Two third connecting rods arranged in parallel are rotatably connected to the second fixing member, and the supporting mechanism is rotatably connected to one end of the third connecting rod away from the second fixing member;

[0026] In the second motion plane, the driving assembly drives the support mechanism to move, and the support mechanism maintains translation during the movement.

[0027] According to an embodiment of the present invention, the drive assembly includes:

[0028] a first driving member, one end of which is rotatably connected to the connecting rod or the shift base, and the other end of which is rotatably connected to the first connecting rod or the first fixing member, for driving the first connecting rod to rotate relative to the connecting rod in the second motion plane;

[0029] a second driving member, one end of which is rotatably connected to the first connecting rod or the connecting rod, and the other end of which is rotatably connected to the second connecting rod or the second fixing member, for driving the second connecting rod to rotate relative to the first connecting rod in the second motion plane;

[0030] The third driving member has one end rotatably connected to the second connecting rod or the first fixing member, and the other end rotatably connected to the third connecting rod or the supporting mechanism, driving the third connecting rod to rotate relative to the second connecting rod in the second motion plane.

[0031] According to an embodiment of the present invention, the support mechanism includes:

[0032] a horizontal support member, rotatably connected to one end of the two third connecting rods away from the second fixing member;

[0033] a vertical support member connected to one end of the horizontal support member;

[0034] The seat adjustment mechanism is connected to the horizontal support member and moves along the length direction of the horizontal support member, and the upper body adjustment mechanism is connected to the vertical support member.

[0035] According to an embodiment of the present invention, the seat adjustment mechanism includes:

[0036] a fourth driving member connected to the horizontal supporting member;

[0037] The support cushion is connected to the fourth driving member and moves along the length direction of the horizontal support member in the second movement plane under the drive of the fourth driving member.

[0038] According to an embodiment of the present invention, the support cushion includes:

[0039] a cushion rod connected to the fourth driving member and slidably connected to the horizontal support member;

[0040] elastic connectors;

[0041] a seat cushion connected to the seat cushion rod via the elastic connector;

[0042] Under the action of external force, the elastic connecting member is deformed so that relative displacement occurs between the seat cushion and the seat cushion rod.

[0043] According to an embodiment of the present invention, the upper body adjustment mechanism includes:

[0044] a vertical drive assembly connected to the vertical support member;

[0045] The upper body adjustment component is connected to the vertical drive component and moves or rotates relative to the support mechanism within the second motion plane under the drive of the vertical drive component.

[0046] According to an embodiment of the present invention, the upper body adjustment component includes:

[0047] an armrest drive assembly, disposed on the vertical drive assembly;

[0048] The armrest assembly is connected to the armrest drive assembly, and under the drive of the armrest drive assembly, it moves back and forth left and right relative to the support mechanism in a third motion plane or rotates back and forth from a horizontal position to both sides in the third motion plane. The third motion plane is perpendicular to the first motion plane and the second motion plane.

[0049] According to an embodiment provided by the present invention, the connecting rod is rotatably connected to the shift base, and an angle limiter is provided at the connection point to enable the lower body adjustment mechanism to achieve offset and limiting movement under the action of external force.

[0050] The multifunctional shifting device of the utility model cooperates with each other to realize the transfer of patients between any seat and the multifunctional shifting device, and to perform sit-to-stand conversion; a multi-link mechanism is used to adjust the support cushion, and its movement trajectory is more flexible, in line with the natural movement trajectory of the human body, with high work efficiency and without causing damage to limbs or joints; the upper body adjustment mechanism and the lower body adjustment mechanism can freely adjust the height to meet the needs of patients of different body shapes or different body shapes, and have a wider range of applications; the control roller can realize the free movement of the device, and combined with the adjustment of each mechanism, it can be used as a walking aid to assist patients to move forward and perform various activities, and can also cooperate with rehabilitation walking training, with strong functionality and diverse applicable scenarios; multiple mechanisms are connected as a whole to ensure the stability of movement in each stage, with high movement efficiency and small space occupation, simple structure and low cost, high safety and comfort, and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0052] Figure 1 A three-dimensional structural diagram of an embodiment of a multifunctional shifting device provided by the utility model;

[0053] Figure 2 This is a front view of an embodiment of a multifunctional shifting device provided by the utility model;

[0054] Figure 3 A simplified three-dimensional structural diagram of a shifting base of an embodiment of a multifunctional shifting device provided by the present invention;

[0055] Figure 4 A three-dimensional structural diagram of an embodiment of a multifunctional shifting device provided by the utility model;

[0056] Figure 5 A three-dimensional structural diagram of an armrest drive assembly of an embodiment of a multifunctional shifting device provided by the present invention;

[0057] Figure 6 A cross-sectional view of a seat adjustment mechanism and a support mechanism of an embodiment of a multifunctional shifting device provided by the present invention;

[0058] Figure 7 A three-dimensional structural diagram of an angle limiter and a damper of an embodiment of a multifunctional shifting device provided by the utility model;

[0059] Figure 8 A three-dimensional structural cross-sectional view of an angle limiter and a damper of an embodiment of a multifunctional shifting device provided by the utility model;

[0060] Figure 9 A three-dimensional structural diagram of an embodiment of a multifunctional shifting device provided by the utility model;

[0061] Figure 10 A three-dimensional structural diagram of a walking-assisting design of an embodiment of a multifunctional shifting device provided by the present utility model;

[0062] Figure 11 A right side view of a walking aid design of an embodiment of a multifunctional shifting device provided by the utility model;

[0063] Figure 12 This is a left side view of the walking aid design of an embodiment of a multifunctional shifting device provided by the utility model.

[0064] Description of labels:

[0065] 100, shift base; 200, lower body adjustment mechanism; 300, support mechanism; 400, seat adjustment mechanism; 500, upper body adjustment mechanism; 600, support frame; 700, walking aid mechanism;

[0066] 110, longitudinal rod; 120, cross rod; 130, tail rod; 140, roller;

[0067] 210, adjustment component; 220, drive component;

[0068] 211. Connecting rod; 212. First connecting rod; 213. Second connecting rod; 214. Third connecting rod; 215. First fixing member; 216. Second fixing member; 217. Angle limiter; 218. Damper;

[0069] 221, first driving member; 222, second driving member; 223, third driving member;

[0070] 310, horizontal support member; 320, vertical support member;

[0071] 410, fourth driving member; 420, supporting cushion; 421, cushion rod; 422, cushion;

[0072] 510, vertical drive assembly; 520, handrail drive assembly; 530, handrail assembly;

[0073] 521, first connecting member; 522, sliding connecting member; 523, second connecting member; 524, fifth driving member; 525, handle assembly;

[0074] 531, lifting rod; 532, supporting armrest;

[0075] 610, fixed pulley; 710, strap; 720, thigh connection; 730, calf connection. DETAILED DESCRIPTION

[0076] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0077] 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 illustrations only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0078] Sit-to-stand assistive devices can help people with limited mobility, such as the elderly or postoperative patients, to achieve activities such as sit-to-stand transitions and shifting. However, many sit-to-stand transition assistive devices have low movement efficiency and cannot effectively reduce the burden on patients' limbs during the transition and shifting process. They are also not coordinated with human movements and can easily cause damage to joints. They are not safe enough, or they take up a lot of space, are expensive, and are extremely inconvenient to use.

[0079] See also Figures 1 to 8The present invention proposes a multifunctional shifting device, which can transfer patients located on any sitting furniture to the device and perform sit-to-stand conversion and shifting. The multifunctional shifting device includes a shifting base 100, a lower body adjustment mechanism 200, a support mechanism 300, a seat adjustment mechanism 400 and an upper body adjustment mechanism 500. The shifting base 100 is set on a first motion plane, which can drive the entire device to shift within the first motion plane. Here, the first motion plane can be, for example, the ground; the lower body adjustment mechanism 200 is connected to the shifting base 100 and is set on a second motion plane. The second motion plane is perpendicular or approximately perpendicular to the first motion plane. The lower body adjustment mechanism 200 can move within the second motion plane and drive the support mechanism 300, the seat adjustment mechanism 400 and the upper body adjustment mechanism 500 to achieve free movement in the horizontal direction and / or vertical direction, lift or put down the patient for sit-to-stand conversion, and can also perform small offsets and resets relative to the shifting base 100 to assist in rehabilitation walking training; the support mechanism The support mechanism 300 is connected to the end of the lower body adjustment mechanism 200 away from the displacement base 100 and moves within the second motion plane. By adjusting its height, the patient can switch between a sitting position and a standing position. The seat adjustment mechanism 400 is slidably connected to the support mechanism 300 and can slide laterally relative to the support mechanism 300 within the second motion plane, thereby resolving the conflict between the seat and the support mechanism 300 and enabling the patient to be transferred between the seat and the device. The upper body adjustment mechanism 500 is connected to the side of the support mechanism 300 away from the displacement base 100 and moves and / or rotates relative to the support mechanism 300 within the second motion plane. The patient can be lifted or lowered from the seat or the seat adjustment mechanism 400 for transfer. The various mechanisms cooperate with each other to transfer the patient between the seat and the device and achieve posture conversion. They can also assist in rehabilitation walking training. The active movement of the displacement base 100 can also assist the mobility-impaired person in walking. The various mechanisms can be used to adjust posture to achieve a variety of activities.

[0080] See also Figures 1 to 2According to an embodiment of the present invention, the shift base 100 can be, for example, a frame structure, which can leave enough space for lower body movements. In a specific embodiment, the shift base 100 can include, for example, two longitudinal rods 110, a transverse rod 120, and two tail rods 130, which are arranged on both sides of the second movement plane. The two longitudinal rods 110 are arranged in parallel, and the transverse rod 120 is arranged between the two longitudinal rods 110 and connected to the ends of the two rods, leaving enough movement space between the two longitudinal rods 110; the two tail rods 130 are symmetrically connected to the two ends of the transverse rod 120 and are located on opposite sides of the two longitudinal rods 110. The distance between the two tail rods 130 is greater than or equal to the length of the transverse rod 120, which can provide more stable support for the entire device; the lower body adjustment mechanism 200 is arranged on the second movement plane. When the patient sits on the seat adjustment mechanism 400, he can move his lower limbs in the space on both sides and maintain stability and balance. It is understandable that the shift base 100 is an integrated support structure or a support structure in which the rods are connected to each other. In other embodiments, the shift base 100 can also be other frame structures such as a rectangular frame or a shift platform with a certain space.

[0081] See also Figures 1 to 4 According to an embodiment of the present invention, a plurality of rollers 140 are provided at the bottom of the shift base 100, which can ensure the free movement function of the entire device. In addition to realizing the sit-stand conversion function, it can also assist the patient in shifting and walking rehabilitation training. Specifically, for example, two universal wheels are provided at the two front corners of the shift base 100, and two fixed wheels are provided at the two rear corners of the shift base 100 to ensure the flexibility and stability of the overall movement and facilitate the adjustment of the forward direction; the front is the direction of forward displacement, and the patient can better maintain the direction under the action of the fixed wheels in the front when walking, and the universal wheels at the rear ensure the flexibility of the device's displacement. The rollers 140 can also all be universal wheels to enhance the ability of lateral displacement. Under the action of the rollers 140, the device can be pushed to freely shift to approach patients on different seats, perform sit-stand conversion and position transfer, and when the patient is walking on the device, the rollers 140 can also assist in forward movement to achieve free displacement.

[0082] See also Figure 3 According to another embodiment provided by the present invention, in order to reduce the space occupied by the device, the shift base 100 is simplified, which includes a cross bar 120 and two tail rods 130 connected on both sides thereof. The lower body adjustment mechanism 200 is connected to the center of the cross bar 120 and is arranged on the second movement plane. Rollers 140 are respectively provided on the tail rods 130 on both sides, which work together with the lower body adjustment mechanism 200 to maintain the balance of the device and realize the shifting function. The structure of the shift base 100 is simpler, effectively reducing the space occupied by the device.

[0083] See also Figures 1 to 4According to one embodiment of the present invention, each roller 140 is a motorized wheel. In addition to performing sit-to-stand transitions and assisting walking training, the device can also serve as a walking aid. The rollers 140 on the transfer base 100 are controlled to actively move and assist the patient in moving forward. Other adjustment mechanisms are used to adjust the patient's posture on the device to achieve various desired activities. It should be noted that the lower body adjustment mechanism 200 is disposed at a symmetrical position on the base. When one end of the lower body adjustment mechanism is connected to the base crossbar 120, at least one roller 140, such as a universal wheel or a fixed wheel, is correspondingly disposed on the other end away from the crossbar 120. This ensures the stability of the entire device during sit-to-stand transitions and transfers, while also better assisting in walking training and transfers.

[0084] See also Figures 1 to 4 According to an embodiment of the present invention, the lower body adjustment mechanism 200 includes an adjustment component 210 and a drive component 220. The adjustment component 210 is connected to the displacement base 100 and can move within a second motion plane to drive the support mechanism 300 connected thereto to move; the drive component 220 is disposed on the adjustment component 210 and / or the displacement base 100 and / or the support mechanism 300 to drive the movement of the adjustment component 210; the support mechanism 300 is connected to the end of the adjustment component 210 away from the displacement base 100 and moves within the second motion plane under the drive of the drive component 220, thereby driving the seat adjustment mechanism 400 connected thereto to move, thereby achieving posture conversion or adjustment for the patient located on the seat adjustment mechanism 400.

[0085] See also Figures 1 to 4 According to an embodiment of the present invention, the adjustment assembly 210 is a connecting rod assembly, which is connected to the displacement base 100 and includes a connecting rod 211, two parallel first connecting rods 212, two parallel second connecting rods 213, two parallel third connecting rods 214, a first fixing member 215 and a second fixing member 216. The connecting rods are connected by the first fixing member 215 and the second fixing member 216 through a revolute pair. The parallelogram mechanism ensures the translational movement of the support mechanism 300 within the plane. The multi-rod group structure can not only more efficiently achieve a wide range of displacement and adapt to people of various body types, but also its curved trajectory movement is more in line with the change of the center of gravity of the human body during standing. It will not cause damage to the patient during the sit-to-stand transition and shifting process, ensuring stability and comfort. The multi-rod group revolute pairs are connected in series, the rod group length is shorter, which greatly saves space while the motion trajectory is more flexible, and can achieve targeted and accurate adjustment of the patient's posture. The sit-to-stand transition process is more efficient, safe and comfortable, and can effectively reduce the burden on the patient's lower limbs while ensuring the effect of shifting and training.

[0086] Specifically, see Figures 1 to 4The connecting rod 211 is connected to the shift base 100, and together with the shift base 100, supports and shifts the entire device, and connects each adjustment mechanism to the shift base 100 as a whole; two parallel first connecting rods 212 are rotatably connected to the connecting rod 211, and the first fixing member 215 is rotatably connected to the end of the two first connecting rods 212 away from the connecting rod 211; two parallel second connecting rods 213 are rotatably connected to the first fixing member 215, and the second fixing member 216 is rotatably connected to the end of the two second connecting rods 213 away from the first fixing member 215; two parallel third connecting rods 214 are rotatably connected to the second fixing member 216, the support mechanism 300 is rotatably connected to the end of the third connecting rod 214 away from the second fixing member 216; within the second motion plane, the first connecting rod 212 and / or the second connecting rod 213 and / or the third connecting rod 214 are driven to rotate by the driving assembly 220 to achieve planar motion of the support mechanism 300, and the support mechanism 300 maintains translation during the motion process, which can ensure overall stable lifting or lowering. Under the action of multiple connecting rods, the support mechanism 300 can achieve a wide range of curved trajectory motion, and its motion trajectory conforms to the laws of human movement, ensuring stability and balance while adjusting the patient's posture, ensuring safety and comfort in use. In other embodiments, the adjustment assembly 210 can also be, for example, a single-link mechanism or a sliding displacement mechanism to achieve position adjustment of the support mechanism 300.

[0087] It can be understood that one end of the first connecting rod 212 is rotatably connected to the connecting portion on the connecting rod 211, and the other end is rotatably connected to the first fixing member 215. The two first connecting rods 212 and the connecting portions on both sides and the first fixing member 215 form a parallel four-bar mechanism. Since the connecting rod 211 is fixed to the shift base 100, when the first connecting rod 212 and the connecting rod 211 rotate relative to each other, the movement of the first fixing member 215 in the second motion plane remains translational; similarly, the two parallel second connecting rods 213 rotate relative to the first fixing member 215 When the two parallel third links 214 rotate relative to the second fixing member 216, they form a parallel four-bar mechanism with the second fixing member 216 on both sides and the support mechanism 300. Finally, the support mechanism 300 can realize the movement of the curved trajectory in the second motion plane under the rotation of each link, realize position adjustment and height adjustment, and the support mechanism 300 always keeps translation during the movement to ensure the stability and balance of the support mechanism 300.

[0088] See also Figures 1 to 4According to one embodiment of the present invention, the first fixing member 215 and the second fixing member 216 may be, for example, fan-shaped fixing members, which may be rotatably connected to the various rods via, for example, multiple pins to ensure connection strength. Angle sensors may be provided at the first fixing member 215 and / or the second fixing member 216 and / or at the connection between the first connecting rod 212 and the connecting rod 211 to measure and record the angles between the various rod groups during movement. This allows for planning the seat path, achieving precise coordination between mechanisms, better adapting to human motion, and improving the operating efficiency and stability of the device.

[0089] See also Figures 1 to 4 According to an embodiment of the present invention, the driving assembly 220 includes a first driving member 221, a second driving member 222, and a third driving member 223. One end of the first driving member 221 is rotatably connected to the connecting rod 211 or the shift base 100, and the other end is rotatably connected to the first connecting rod 212 or the first fixing member 215, driving the first connecting rod 212 to rotate relative to the connecting rod 211 in the second motion plane; one end of the second driving member 222 is rotatably connected to the first connecting rod 212 or the connecting rod 211, and the other end is rotatably connected to the second connecting rod 213 or the second fixing member 216, driving the second connecting rod 213 to rotate relative to the first connecting rod 212 in the second motion plane; one end of the third driving member 223 is rotatably connected to the second connecting rod 213 or the first fixing member 215, and the other end is rotatably connected to the third connecting rod 214 or the support mechanism 300, driving the third connecting rod 214 to rotate relative to the second connecting rod 213 in the second motion plane. When each connecting rod moves under the drive of the driving component 220, the connecting rod located above rotates with the connecting rod connected to it below as a frame. The driving component 220 can be, for example, an electric push rod. When the push rod moves along the length direction, it drives the upper connecting rod to rotate relative to the lower connecting rod. The various driving parts cooperate with each other to drive the connecting rods to rotate, thereby realizing the free movement of the support mechanism 300 in the horizontal direction and / or vertical direction within the second motion plane.

[0090] It should be noted that, under the action of each driving member, multiple groups of connecting rods rotate relative to each other and their movements cooperate with each other, so that the entire adjustment component 210 performs curved motion and drives the support mechanism 300 and other mechanisms connected thereto to stably rise or fall along a curved trajectory in the second motion plane. Its motion trajectory conforms to the principles of human movement, and the support mechanism 300 remains horizontal during the overall movement process, effectively improving the working efficiency of the device while ensuring comfort of use.

[0091] See also Figures 1 to 4According to an embodiment of the present invention, the driving component 220 is externally connected to the control device. The path of the driving component 220 driving each rod group to move is preset and planned according to the patient's body shape and required movement. When performing a sit-to-stand transition, the control device is used to control each driving component to achieve a predetermined motion trajectory. The work efficiency is high and conforms to the laws of human movement. During rehabilitation training, the patient can also be conveniently adjusted to the optimal position according to the preset, reducing the burden on the lower limbs while effectively mobilizing the strength of various parts of the body to achieve effective training.

[0092] See also Figures 1 to 8 According to one embodiment of the present invention, the connecting rod 211 is rotatably connected to the displacement base 100, and an angle limiter 217 and a damper 218 are provided at the connection point, so that the lower body adjustment mechanism 200 can achieve left and right offset and reset movement under the action of a human or non-human external driving force. During walking training and displacement, the lower body adjustment mechanism 200 can be offset and reset in coordination with the patient's hip swing to achieve walking. The angle limiter 217 limits the offset angle to prevent excessive lower body offset from affecting balance, and is more consistent with the patient's walking posture, cooperating with the human body to better achieve walking movements. At the same time, the damper 218 can provide a certain amount of buffering during the offset process, maintaining the stability and safety of the exercise process. The entire device remains balanced and stable without shaking or tipping over, which can effectively improve the training effect and comfort.

[0093] Specifically, connecting rod 211 is connected to crossbar 120 of displacement base 100 and is located within the second motion plane. Connecting rod 211 and the base jointly support the weight-reducing mechanism and upper body protection mechanism, ensuring the balance and stability of the entire device. They also assist in walking and enhance training effectiveness. The connection surface between connecting rod 211 and crossbar 120 is perpendicular to the first and second motion planes, enabling connecting rod 211 to achieve slight rotation relative to the base within the connection surface, i.e., left and right offset and reset motion, thereby driving the offset and reset motion of each set of connecting rods and support components connected to connecting rod 211.

[0094] See also Figures 1 to 8 According to an embodiment provided by the present invention, the angle limiter 217 is a limiting bolt, a first connecting block is provided on the bottom surface of the cross bar 120, and a second connecting block is correspondingly provided on the bottom surface of the connecting rod 211. A threaded hole is provided on the second connecting block, and the limiting bolt is connected and fixed to the second connecting block by threads; a connecting groove is provided at the corresponding position on the first connecting block, and the connecting groove can be an arc-shaped structure, for example, and the other end of the limiting bolt is inserted into the connecting groove and can swing slightly, thereby driving the connecting rod 211 to be offset relative to the base within a certain range; the limiting bolt extends out of the second connecting block and is fixed on its end face by a nut to achieve axial limitation of the connecting rod 211 and the movable base.

[0095] See also Figures 1 to 8 According to an embodiment of the present invention, a rectangular groove is formed along the bottom of one end of the connecting rod 211 near the crossbar 120, and the second connecting block is partially located in the rectangular groove. A damper 218 is provided at the connection between the second connecting block and the crossbar 120. Specifically, the damper 218 can be, for example, a damping nut, which fixes the crossbar 120 and the connecting rod 211 through a bolt and nut, and realizes a damping function through a damping ring between the bolt and the connecting hole, maintaining the stability of the device and buffering the movement. The crossbar 120 can be provided with a stepped hole to enhance the stability of the threaded connection, and a step is provided at the installation position of the nut to facilitate installation and ensure the strength of the connection. When the lower body adjustment mechanism 200 swings slightly relative to the base, the damper 218 provides buffering and support during the swing, which can achieve an effective offset and reset process, ensure the stability of the entire device, and prevent it from shaking or tipping over violently. When not subjected to external forces, the entire device can also maintain stable balance under the action of the damper 218.

[0096] See also Figures 1 to 6 According to an embodiment of the present invention, the support mechanism 300 includes a horizontal support member 310 and a vertical support member 320. The horizontal support member 310 is rotatably connected to one end of the two third connecting rods 214 away from the second fixing member 216, and is provided with a seat adjustment mechanism 400 for supporting the human body and reducing the burden on the lower limbs; the vertical support member 320 is connected to one end of the horizontal support member 310, and the upper body adjustment mechanism 500 is connected to the vertical support member 320, and is connected to the lower body adjustment mechanism 200 as a whole through the vertical support member 320; the seat adjustment mechanism 400 is connected to the horizontal support member 310 and moves along the length direction of the horizontal support member 310 to achieve the transfer of the human body between the seat and the shifting device.

[0097] See also Figures 1 to 6 According to an embodiment provided by the present invention, the support mechanism 300 is an integrated L-shaped support frame, the horizontal section of which is the horizontal support member 310, which is connected to the adjustment component 210 to support and adjust the position of the human body, thereby realizing sit-to-stand conversion; the vertical section of which is the vertical support member 320, which is connected to the upper body adjustment mechanism 500 and moves relative to the upper body adjustment mechanism 500 to lift or lower the patient, thereby collaboratively realizing sit-to-stand conversion and position transfer.

[0098] See also Figures 1 to 6According to an embodiment provided by the present invention, the horizontal support member 310 is connected to the end of the third connecting rod 214 away from the second connecting rod 213. Specifically, for example, the bottom of the horizontal support member 310 has two side plates as fixed plates, and its lower edge forms a certain angle with the horizontal direction, which is convenient for connection with the two rods of the third connecting rod 214. The third connecting rod 211 is connected to the side plate and is located in the middle of the horizontal support member 310 to ensure support strength and maintain balance; the horizontal support member 310 can maintain translation under the rotation adjustment of each connecting rod to ensure the stability and comfort of the device.

[0099] See also Figures 1 to 6 According to an embodiment of the present invention, the vertical support member 320 is perpendicular to the horizontal support member 310 and is fixedly connected to one end of the horizontal support member 310. The upper body adjustment mechanism 500 is connected to the vertical support member 320 and moves in the vertical direction to achieve height adjustment, so that the patient can be lifted or lowered from the seat or shifting device, and the movement of the upper body adjustment mechanism 500 and the seat adjustment mechanism 400 are coordinated to achieve sit-to-stand conversion and position transfer. At the same time, the height adjustment of the upper body adjustment mechanism 500 during the shifting and rehabilitation training process can adapt to people of different body shapes and different exercise postures.

[0100] See also Figures 1 to 6 According to an embodiment of the present invention, the seat adjustment mechanism 400 includes a fourth drive member 410 and a support cushion 420. The fourth drive member 410 is connected to the horizontal support member 310, and the support cushion 420 is connected to the fourth drive member 410. The fourth drive member 410 is driven to move along the length direction of the horizontal support member 310 in the second motion plane and slide relative to the horizontal support member 310. Specifically, for example, a groove is provided on the upper surface of the horizontal support member 310, and the fourth drive member 410 and the support cushion 420 are arranged in the groove. The fourth drive member 410 can be, for example, an electric push rod, one end of which is fixed to the horizontal support member 310 and the other end is connected to the support cushion 420. The push rod moves along the length direction of the horizontal support member 310 and drives the support cushion 420 to reciprocate. When the patient needs to leave the seat, the device is moved in front of the patient, and the upper body adjustment mechanism 500 is used to lift the patient. The support cushion 420 slides on the horizontal support member 310 and extends out of the groove, moves to the patient's crotch, and then the patient is loaded back to the position and transferred from the seat to the shifting device. The movable support cushion 420 is used to assist the transfer. The horizontal support member 310 is relatively short to avoid spatial conflict between the lower body adjustment mechanism 200 and the support mechanism 300 and the seat.

[0101] See also Figures 1 to 6According to an embodiment of the present invention, the support cushion 420 includes a cushion rod 421, a cushion 422 and an elastic connecting member. The seat cushion 422 is connected to the fourth driving member 410 and is slidably connected to the horizontal support member 310; the seat cushion 422 is set on the seat cushion rod 421 through an elastic connecting member, and slides on the horizontal support member 310 along with the seat cushion rod 421 under the drive of the fourth driving member 410. The seat cushion 422 can be, for example, an airbag seat cushion, made of materials such as rubber, with good flexibility, and an inflatable design to disperse pressure, reduce pressure on the patient's body, improve comfort and ensure a good support effect; the elastic connecting member can be, for example, a connecting spring, one end of which is connected to the seat cushion rod 421 and the other end is connected to the seat cushion 422. Under the action of external force, it is deformed so that a relative displacement occurs between the seat cushion 422 and the seat cushion rod 421. The connecting spring can, for example, be two groups of springs symmetrically distributed on both sides of the seat cushion rod 421 to ensure the support effect. At the same time, it can reduce the restraint of the supporting seat cushion 420 on the human body and have a certain buffering effect, with good training effect and high comfort.

[0102] See also Figures 1 to 6 According to an embodiment of the present invention, the lower body adjustment mechanism 200, the support mechanism 300 and the seat adjustment mechanism 400 form a straddle-type weight-reducing mechanism, which does not impose any physical burden on the patient while ensuring the standing and shifting functions. In addition, during walking training, adjustments for different stages of rehabilitation training can effectively reduce the burden on the lower limbs while ensuring the training effect, thus avoiding limb or joint injuries. Figures 1 to 6 According to an embodiment of the present invention, the upper body adjustment mechanism 500 includes a vertical drive component 510 and an upper body adjustment component. The vertical drive component 510 is connected to the vertical support member 320. The upper body adjustment component is connected to the vertical drive component 510. Under the drive of the vertical drive component 510, the upper body adjustment component moves and / or rotates in the vertical direction relative to the support mechanism 300 in the second motion plane.

[0103] See also Figures 1 to 6According to an embodiment of the present invention, the upper body adjustment assembly includes an armrest drive assembly 520 and an armrest assembly 530. The armrest drive assembly 520 is arranged on the vertical drive assembly 510 and is connected to the end of the vertical drive assembly 510 away from the displacement base 100. The armrest drive assembly 520 is slidably connected or rotationally connected to the vertical drive assembly 510. Under the drive of the vertical drive assembly 510, the armrest drive assembly 520 can move up and down or rotate relative to the support mechanism 300; the armrest assembly 530 is connected to the armrest drive assembly 520. Under the drive of the armrest drive assembly 520, the armrest assembly 530 moves back and forth relative to the support mechanism 300 in a third motion plane or rotates back and forth from a horizontal position to both sides in the third motion plane, thereby assisting in achieving the patient's center of gravity shift. The third motion plane is perpendicular to the first motion plane and the second motion plane. At the same time, the armrest assembly 530 can move up and down or rotate relative to the support mechanism 300 with the armrest drive assembly 520 to achieve height adjustment of the patient's upper body.

[0104] See also Figures 1 to 6 According to an embodiment of the present invention, the armrest assembly 530 is supported under the patient's arms. When performing a sit-to-stand transition, the armrest assembly 530 is driven by the vertical drive assembly 510 to move up and down or rotate relative to the support mechanism 300 to lift or lower the patient, and cooperates with the seat adjustment mechanism 400 and the lower body adjustment mechanism 200 to achieve sit-to-stand transition and position transfer; during walking training and shifting, the armrest assembly 530 is used to provide upper body support to maintain the patient's stability and safety. It is driven by the armrest drive assembly 520 to move horizontally or rotate back and forth from a horizontal position to both sides around the connecting axis between the armrest drive assembly 520 and the armrest assembly 530, which can assist the patient's shoulder swing to achieve a shift in center of gravity for taking steps, and can also adjust the vertical height of the upper limbs to better adapt to patients of different body shapes.

[0105] It is understood that during the sit-to-stand transition, the upper body adjustment mechanism 500, support mechanism 300, and seat adjustment mechanism 400 move as a whole relative to the lower body adjustment mechanism 200, with the upper body adjustment mechanism 500 acting only as a protective device. When transferring a patient between the seat and the device, the adjustment mechanisms work together, with the adjustment mechanism driving the movement of the other mechanisms as a whole. For example, when the upper body adjustment mechanism 500 is lifting or lowering a patient, the lower body adjustment mechanism 200, support mechanism 300, and seat adjustment mechanism 400 serve as the adjustable base, and the upper body adjustment mechanism 500 moves relative to the entire mechanism. While each adjustment mechanism performs its specific adjustment function, it can move as a whole with the other mechanisms, shortening the travel without affecting functionality, saving space occupied by the entire device, and facilitating use.

[0106] See also Figures 1 to 3 and Figure 5 、 Figure 6 According to one embodiment of the present invention, the vertical support member 320 is a hollow structure. The vertical drive assembly 510 is disposed within the vertical support member 320, driving the armrest drive assembly 520 and the armrest assembly 530 to move vertically within the third motion plane. The vertical drive assembly 510 can be, for example, an electric push rod, one end of which is fixed to the vertical support member 320 and the other end is connected to the armrest drive assembly 520. When the push rod moves linearly, it drives the armrest drive assembly 520 and the armrest assembly 530 to move vertically, thereby driving the entire upper body adjustment mechanism 500 to achieve height adjustment.

[0107] See also Figure 4 According to another embodiment provided by the present invention, the armrest drive assembly 520 is rotationally connected to the vertical drive assembly 510. For example, the vertical drive assembly 510 includes two parallel connecting rods. One end of the vertical drive assembly 510 is rotationally connected to the vertical support 320, and the other end is rotationally connected to the vertical support 320 through two parallel connecting rods. The other end of the connecting rod is rotationally connected to the armrest drive assembly 520. The armrest drive assembly 520, the parallel connecting rod and the vertical support 320 constitute a parallel four-bar mechanism. The vertical drive assembly 510 is rotationally connected to the connecting rod and drives it to rotate relative to the vertical support 320, driving the armrest drive assembly 520 to rotate relative to the support mechanism 300, thereby realizing the adjustment of the height of the armrest assembly 530.

[0108] See also Figures 1 to 6 According to an embodiment of the present invention, the armrest drive assembly 520 includes a first connector 521, a sliding connector 522, a second connector 523, and a fifth drive member 524. The first connector 521 is connected to the vertical drive assembly 510 and is slidably or rotationally connected to the vertical support member 320, achieving height adjustment under the drive of the vertical drive assembly 510; the sliding connector 522 is slidably connected to the first connector 521 and is perpendicular to the second motion plane; the second connector 523 is connected to the sliding connector 522 and is symmetrically distributed on both sides of the sliding connector 522; the fifth drive member 524 can be, for example, an electric push rod, one end of which is fixed to the first connector 521 and the other end is connected to the second connector 523 and is parallel to the sliding connector 522; the armrest assembly 530 is connected to the second connector 523, and the electric push rod drives the sliding connector 522 and the second connector 523 to reciprocate along the axial direction, thereby driving the armrest assembly 530 to achieve left and right reciprocating motion within the third motion plane. It is understandable that the armrest drive assembly 520 and the seat adjustment mechanism 400 can be located on the same side or on different sides of the vertical support member 320. When the armrest drive assembly 520 and the seat adjustment mechanism 400 are located on different sides of the vertical support member 320, space can be effectively saved.

[0109] See also Figures 1 to 3 and Figure 5 、 Figure 6 According to an embodiment provided by the present invention, the first connecting member 521 and the vertical driving assembly 510 are respectively located at the upper and lower parts of the hollow part of the vertical support member 320. A sliding groove is provided on the surface of the vertical support member 320 close to the armrest assembly 530. The protruding connecting portion on the vertical support member 320 extends out of the sliding groove and is connected to the sliding connecting member 522 to drive the entire armrest driving assembly 520 and the armrest assembly 530 to move together with the first connecting member 521.

[0110] See also Figures 1 to 3 and Figure 5 、 Figure 6 According to an embodiment provided by the present invention, handle assemblies 525 are symmetrically arranged on both side surfaces of the first connecting member 521 parallel to the second movement plane, and correspondingly, sliding grooves are also opened on both side surfaces of the vertical support member 320 to ensure the displacement of the first connecting member 521 in the vertical direction. The handle assembly 525 can be, for example, two curved handles, which are located on the opposite sides of the lower body adjustment mechanism 200 and the armrest assembly 530 and can serve as auxiliary support. When the device needs to be moved, holding the handle assembly 525 can conveniently push the device to the destination position.

[0111] See also Figure 4 According to another embodiment provided by the present invention, the first connecting member 521 and the vertical driving assembly 510 are rotatably connected to the vertical support member 320 through two parallel connecting rods. The vertical driving assembly 510 is, for example, an electric push rod, one end of which is rotatably connected to the vertical support member 320, and the other end is rotatably connected to the parallel connecting rod. Using a parallel four-bar mechanism, the push rod moves back and forth to drive the connecting rod to rotate. When the connecting rod rotates relative to the vertical support member 320, it drives the first connecting member 521 to rotate relative to it, thereby realizing the height adjustment of the armrest assembly 530.

[0112] See also Figures 1 to 6 According to an embodiment provided by the present invention, the sliding connector 522 is arranged on the upper and lower sides of the fifth driving member 524, which passes through the connecting hole of the vertical support member 320 and is connected to it; the connecting member can be, for example, two connecting plates, which are fixedly connected to the two ends of the sliding connector 522 respectively; one end of the fifth driving member 524 is fixed to the first connecting member 521, and the other end is connected to the connecting member, which reciprocates axially relative to the fixed end, and the driving connecting member drives the sliding connector 522 to slide axially in the connecting hole, so that the entire armrest driving assembly 520 and the armrest assembly 530 can realize left and right reciprocating motion in the third motion plane, driving the human body's shoulders to swing to realize the center of gravity transfer, and will not rotate relative to the vertical support member 320, thereby ensuring the stability of the support.

[0113] See also Figures 1 to 6According to one embodiment of the present invention, the armrest assembly 530 includes a lifting rod 531 and a supporting armrest 532. The lifting rod 531 is connected to the armrest drive assembly 520 and is perpendicular to the second motion plane. The supporting armrests 532 are connected to the lifting rod 531 and are symmetrically distributed on both sides of the lifting rod 531. Under the action of the armrest drive assembly 520 and the vertical drive assembly 510, the lifting rod 531 and the supporting armrest 532 reciprocate left and right within the third motion plane and move freely in the vertical direction.

[0114] See also Figures 1 to 6 According to an embodiment of the present invention, the lifting rod 531 is connected to the connecting member. When the fifth driving member 524 drives the sliding connecting member 522 and the connecting member to reciprocate along the axial direction, the lifting rod 531 is driven to reciprocate left and right within the third motion plane. Specifically, for example, the connecting member and the lifting rod 531 are connected by a sleeve. Since the support armrest 532 is used to support the upper body, the sleeve connection of the lifting rod 531 will be subject to a large torque. Therefore, a parallel connecting groove is provided on the lifting rod 531 to connect with the sleeve to strengthen the connection strength. Figures 1 to 6 According to one embodiment of the present invention, the support armrest 532 extends from the lower body adjustment mechanism 200 along its length. When the patient sits on the seat or cushion 422, the patient can place both arms on the support armrest 532 without causing any conflict between the support mechanism 300 and the seat. When the armrest assembly 530 moves vertically within the third motion plane, the support armrest 532 lifts the patient off the seat or cushion 422, and then slides the patient to the cushion 422 or seat position through the sliding of the chair adjustment mechanism 400 and lowers the patient. During rehabilitation walking training, the armrest assembly 530 reciprocates left and right within the third motion plane. The patient places both arms on the support armrest 532, and swings their shoulders as the support armrest 532 moves left and right, achieving a shift in center of gravity. This coordinates with the offset movement of the lower body adjustment mechanism 200 to achieve a step.

[0115] See also Figures 1 to 6 According to an embodiment of the present invention, an underarm protective cover is provided on the support armrest 532, which can be made of soft materials such as sponge to prevent discomfort or injury caused by long-term stress when supporting the arms, thereby improving the comfort of using the device.

[0116] See also Figures 1 to 8 According to an embodiment of the present invention, each driving member is connected to a control device to control each mechanism to move along a predetermined trajectory, thereby enabling efficient and convenient sit-stand conversion and position adjustment.

[0117] See also Figures 1 to 8When in use, the patient initially sits on the edge of the bed, for example, and someone else can hold the handle assembly 525 to push the device in front of the patient, and the vertical drive assembly 510 lowers the lifting rod 531 and the support armrest 532 and places them under the patient's armpits, and then drives the lifting rod 531 and the support armrest 532 to lift up and lift the patient's body off the bed; the fourth drive member 410 drives the support cushion 420 to slide out of the groove of the horizontal support member 310 and move it to the patient's crotch, and then the vertical drive assembly 510 again moves the lifting rod 531 and the support armrest 532 slightly downward, so that the support cushion 420 supports the patient upward; the fourth drive member 410 drives the support cushion 420 to slide out of the groove of the horizontal support member 310 and move it to the patient's crotch. The movable part 410 then moves the support cushion 420 back to the groove of the horizontal support part 310 and locks it. At this time, the upper body adjustment mechanism 500 is adjusted and fixed, and the patient is transferred from the seat to the shifting device; the patient sits on the cushion 422, and the support armrest 532 and the upper body adjustment mechanism 500 follow the overall movement of the lower body adjustment mechanism 200. The support armrest 532 stabilizes the balance of the patient's upper body, and the driving component 220 in the lower body adjustment mechanism 200 drives each connecting rod to move according to a predetermined trajectory. The cushion 422 carries the patient to achieve a trajectory movement that is consistent with the natural standing of the human body, completing the transition from sitting to standing.

[0118] See also Figures 1 to 8 When the patient changes from a standing position to a sitting position, the driving component 220 in the lower body adjustment mechanism 200 drives each connecting rod to move along a predetermined trajectory, and the cushion 422 carries the patient back along the original trajectory to the initial sitting position; the fourth driving component 410 drives the support cushion 420 to slide out of the groove of the horizontal support component 310, carrying the patient to the bed surface, and then the vertical driving component 510 drives the lifting rod 531 and the support armrest 532 to move upward to lift the patient off the cushion 422, and the fourth driving component 410 drives the support cushion 420 to be pulled out from under the patient and reset; the vertical driving component 510 drives the lifting rod 531 and the support armrest 532 to move downward to slowly place the patient on the edge of the bed, then detach from the patient and reset, completing the change from standing position to sitting position and transferring the patient from the shifting device to the seat.

[0119] See also Figures 1 to 8The patient lies on the seat cushion 422 with their arms resting on the support armrests 532. The height of each mechanism is adjusted according to their body shape and height to ensure comfort. The lower body adjustment mechanism 200 reduces the burden on the patient's lower limbs while ensuring that the patient can effectively mobilize the lower body strength to walk. At this time, the armrest drive assembly 520 drives the lifting rod 531 and the support armrest 532 to move back and forth, causing the patient's upper body to shift left and right to achieve a center of gravity shift, and the lower body to swing slightly accordingly. The lower body adjustment mechanism 200, under the action of the angle limiter 217 and the damper 218, shifts and resets along with the patient's lower body, reducing weight while assisting the patient to achieve a step. At the same time, the seat cushion 422 also shifts with the patient under the action of the connecting spring, reducing movement obstacles and improving comfort. In addition, when the patient sits on the seat cushion 422, the device can also serve as a walking aid. The control roller 140 moves the movable base to the target position to achieve displacement, and then adjusts the patient's sitting or standing posture to facilitate various activities.

[0120] See also Figures 9 to 12 According to an embodiment provided by the present invention, a walking aid design is added to the multifunctional shifting device. Specifically, it includes a support frame 600 and two sets of symmetrically distributed walking aid mechanisms 700. Each set of walking aid mechanisms 700 includes a thigh connection part 720 and a calf connection part 730 connected by a strap 710. A plurality of fixed pulleys 610 are provided on the support frame 600. The straps 710 on the two sets of walking aid mechanisms 700 are connected to each other through the pulley group on the support frame 600. When the strap 710 on one side is pulled, the strap 710 on the other side and the components connected thereto will be driven to move. When the patient sits on the device, the thigh and calf are respectively located at the thigh connection part 720 and the calf connection part 730 and fixed by the strap 710. During the movement of the device, if the patient's left leg contacts the ground and moves backward relative to the device, the strap on the left leg will apply tension to the strap on the right leg through the pull ring and the fixed pulley set, thereby prompting the right leg to move forward, and vice versa, thereby prompting the left and right legs to cyclically step.

[0121] The multifunctional shifting device of the utility model adopts a multi-rod group for the lower body adjustment mechanism, which saves space and has a larger adjustment range. Its movement trajectory is flexible and conforms to the law of human movement. While effectively realizing its functions such as sit-stand conversion, it effectively avoids damage to the patient, thereby improving the comfort and safety of the device. The upper body adjustment mechanism serves as a protective mechanism and cooperates with the seat adjustment mechanism to realize the transfer of the patient between the seat and the device. The movable seat cushion solves the spatial conflict problem between the seat and the device, and the working process is efficient and safe. The various mechanisms are connected as a whole. When the upper body adjustment mechanism lifts the patient, the lower body adjustment mechanism serves as a base with adjustable position. When the lower body adjustment mechanism lifts the patient, the upper body lifting mechanism only serves as a protective device. The stroke is shortened without affecting the function, saving space occupied by the entire device. The entire device has a simple structure, and the various components are simple to cooperate with. It is easy to process and disassemble and repair, ensuring strength while saving cost. The multiple adjustment mechanisms can adapt to people of various body types. In addition to performing sit-stand conversion and position transfer, it can also be used as a lower limb rehabilitation walking training aid and a walking aid. It has diverse functions, good effects, and is very versatile.

[0122] 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 they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

[0123] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. A multifunctional shifting device, characterized in that: include: A shift base is provided on a first movement plane; a lower body adjustment mechanism connected to the displacement base and arranged in a second motion plane, the second motion plane being perpendicular or approximately perpendicular to the first motion plane; a supporting mechanism connected to an end of the lower body adjustment mechanism away from the displacement base and moving in the second motion plane; a seat adjustment mechanism, slidably connected to the support mechanism and movable laterally relative to the support mechanism in the second motion plane; The upper body adjustment mechanism is connected to a side of the support mechanism away from the displacement base, and moves and / or rotates relative to the support mechanism in the second motion plane.

2. The multifunctional shifting device according to claim 1, characterized in that: The lower body adjustment mechanism comprises: an adjustment assembly connected to the shift base; A driving assembly, provided on the adjusting assembly and / or the shifting base and / or the supporting mechanism; The supporting mechanism is connected to one end of the adjusting component away from the shifting base, and moves in the second motion plane under the drive of the driving component.

3. The multifunctional shifting device according to claim 2, characterized in that: The adjustment assembly is a connecting rod assembly connected to the shift base, including: A connecting rod connected to the shift base; Two first connecting rods arranged in parallel and rotatably connected to the connecting rod; a first fixing member, rotatably connected to one end of the two first connecting rods away from the connecting rod; Two second connecting rods arranged in parallel and rotatably connected to the first fixing member; a second fixing member, rotatably connected to one end of the two second connecting rods away from the first fixing member; Two third connecting rods arranged in parallel are rotatably connected to the second fixing member, and the supporting mechanism is rotatably connected to one end of the third connecting rod away from the second fixing member; In the second motion plane, the driving assembly drives the support mechanism to move, and the support mechanism maintains translation during the movement.

4. The multifunctional shifting device according to claim 3, characterized in that: The drive assembly includes: a first driving member, one end of which is rotatably connected to the connecting rod or the shift base, and the other end of which is rotatably connected to the first connecting rod or the first fixing member, for driving the first connecting rod to rotate relative to the connecting rod in the second motion plane; a second driving member, one end of which is rotatably connected to the first connecting rod or the connecting rod, and the other end of which is rotatably connected to the second connecting rod or the second fixing member, for driving the second connecting rod to rotate relative to the first connecting rod in the second motion plane; The third driving member has one end rotatably connected to the second connecting rod or the first fixing member, and the other end rotatably connected to the third connecting rod or the supporting mechanism, driving the third connecting rod to rotate relative to the second connecting rod in the second motion plane.

5. The multifunctional shifting device according to claim 3, characterized in that: The supporting mechanism comprises: a horizontal support member, rotatably connected to one end of the two third connecting rods away from the second fixing member; a vertical support member connected to one end of the horizontal support member; The seat adjustment mechanism is connected to the horizontal support member and moves along the length direction of the horizontal support member, and the upper body adjustment mechanism is connected to the vertical support member.

6. The multifunctional shifting device according to claim 5, characterized in that: The seat adjustment mechanism comprises: a fourth driving member connected to the horizontal supporting member; The support cushion is connected to the fourth driving member and moves along the length direction of the horizontal support member in the second movement plane under the drive of the fourth driving member.

7. The multifunctional shifting device according to claim 6, characterized in that: The support cushion comprises: a cushion rod connected to the fourth driving member and slidably connected to the horizontal support member; elastic connectors; a seat cushion connected to the seat cushion rod via the elastic connector; Under the action of external force, the elastic connecting member is deformed so that relative displacement occurs between the seat cushion and the seat cushion rod.

8. The multifunctional shifting device according to claim 5, characterized in that: The upper body adjustment mechanism comprises: a vertical drive assembly connected to the vertical support member; The upper body adjustment component is connected to the vertical drive component and moves or rotates relative to the support mechanism within the second motion plane under the drive of the vertical drive component.

9. The multifunctional shifting device according to claim 8, characterized in that: The upper body adjustment assembly includes: an armrest drive assembly, disposed on the vertical drive assembly; The armrest assembly is connected to the armrest drive assembly, and under the drive of the armrest drive assembly, it moves back and forth left and right relative to the support mechanism in a third motion plane or rotates back and forth from a horizontal position to both sides in the third motion plane. The third motion plane is perpendicular to the first motion plane and the second motion plane.

10. The multifunctional shifting device according to claim 3, characterized in that: The connecting rod is rotatably connected to the shift base, and an angle limiter is provided at the connection point to enable the lower body adjustment mechanism to achieve offset and limiting movement under the action of external force.

Images