Leg bending and lifting auxiliary device

Abstract

The utility model discloses a leg bending and lifting auxiliary device, which belongs to the technical field of nursing and comprises a support, a seat disc, a leg support and a foot support. The seat disc is horizontally mounted at the top of the bracket; the foot support is horizontally arranged and connected with the support through a parallelogram connecting rod mechanism, and an idle wheel is fixedly installed on one side of the bottom face of the foot support. The leg support is fixed on the parallelogram connecting rod mechanism, and a leg lifting push rod is further connected between the leg support and the bracket. According to the utility model, through the arrangement of the idle wheel, a user can be supported by the idle wheel when standing on the kickstand and tending to tilt laterally, so that the user can be prevented from toppling and turning laterally; in addition, through the arrangement of a parallelogram connecting rod mechanism, the foot support can be in a horizontal state all the time, so that the lying / sitting position of the user cannot be influenced by leg bending and lifting action conversion, and the use burden brought to the user is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nursing, and particularly relates to a bending and lifting leg assisting device. Background Art

[0002] Especially for the elderly with inconvenient legs, due to their inconvenient movement, they often need to lie or sit. However, from the perspective of rehabilitation, their legs still need to be moved frequently to promote blood circulation. When necessary, the elderly also need to be able to stand up.

[0003] However, in the prior art, for example, in the Chinese utility model patent with the publication number CN218979529U, although it discloses a structure that can support the conversion of the user's leg state between lifting the leg and bending the leg, the position of its footrest is difficult to support the user to stand, otherwise it is easy to fall. In addition, the footrest part cannot be flattened in the leg-lifting state, resulting in the user needing to adjust their own position to adapt to the footrest part in the leg-lifting state, thus bringing an additional burden to the elderly who are already inconvenient in movement. Content of the Utility Model

[0004] Aiming at the problems in the prior art that the nursing equipment does not support the user to stand and the user needs to adjust their own position when converting the bending and lifting leg posture, the purpose of the utility model is to provide a bending and lifting leg assisting device to at least partially solve the above problems.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A bending and lifting leg assisting device includes a bracket, a seat plate, a leg support and a foot support; the seat plate is horizontally installed at the top of the bracket; the foot support is horizontally arranged, the foot support is connected to the bracket through a parallelogram link mechanism, and a idler wheel is fixedly installed on one side of the bottom surface of the foot support; the leg support is fixed on the parallelogram link mechanism, and a leg-lifting push rod is also connected between the leg support and the bracket.

[0007] In some preferred embodiments, one end of the seat plate adjacent to the leg support is pivotally connected to the bracket through a standing hinge shaft, and a standing push rod is connected between the seat plate and the bracket.

[0008] In some preferred embodiments, there are two idler wheels and they are arranged at intervals in the width direction.

[0009] In some preferred embodiments, the idler wheel is a universal caster.

[0010] In some preferred embodiments, a controller is further included, and the controller is electrically connected to the leg-lifting push rod and the standing push rod.

[0011] In some preferred embodiments, the leg-lifting push rod and the standing push rod are air cylinders, hydraulic cylinders or electric cylinders.

[0012] In some preferred embodiments, the controller is an ECU controller.

[0013] By adopting the above technical solutions, the beneficial effects of the present utility model are as follows: through the setting of the parallelogram link mechanism and the leg-lifting push rod, the device of the present utility model has two usage states, which are respectively called the bent-leg state and the leg-lifting state. In the leg-lifting state, the leg-lifting push rod is in the extended state, so that both the foot support and the leg support are in a substantially horizontal state, and the user can straighten the legs, thereby achieving the state of lying flat or sitting with straight legs; when the leg-lifting push rod shortens, it drives the leg support to turn downward, and the user's legs will accordingly change to the bent-leg state. Therefore, with the telescopic movement of the leg-lifting push rod, the user's legs change between leg-lifting and leg-bending, and the user does not need to adjust his own position during the process of the device changing states, so no additional usage burden will be generated. In addition, due to the existence of the idler wheel, when the device is in the bent-leg state (that is, when the foot support is placed at a low position), when the device tilts, the foot support can contact the ground through the idler wheel, so that the foot support is supported by the idler wheel, and the situation of tipping over when the user stands on the foot support can be effectively prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural view of the device of the present utility model in the bent-leg state.

[0015] Figure 2 is Figure 1 a left view of the device shown.

[0016] In the figure: 1 - bracket, 2 - seat plate, 3 - leg support, 4 - foot support, 5 - standing hinge shaft, 6 - standing push rod, 7 - parallelogram link mechanism, 8 - leg-lifting push rod, 9 - idler wheel, 10 - controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further describes the specific embodiments of the present utility model with reference to the drawings. It should be noted here that the description of these embodiments is for helping to understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc. is an illustration of the structure of the present utility model based on the drawings shown. It is only for the convenience of describing the present utility model simply, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0019] Regarding "first" and "second" in the present technical solution, they are only used to distinguish the names of corresponding structures with the same or similar structures or similar functions, rather than arranging the importance of these structures, nor do they have an order, or compare sizes, or other meanings.

[0020] In addition, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two structures. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the general idea of the present utility model and in connection with the specific context of this solution.

[0021] Embodiment

[0022] A hip and leg raising assistance device, which can be applied to a bed chair (or a bed chair robot), such as Figure 1 and Figure 2 shown. The device includes a bracket 1, and a seat plate 2, a leg support 3, and a foot support 4 arranged in sequence along the length direction, and this length direction refers to the length direction of the bed chair.

[0023] The bracket 1 is the bed frame of the bed chair or the chair frame of the wheelchair. The seat plate 2 is generally in a planar structure and can be configured as a plate shape or a frame shape according to the actual application scenario. The seat plate 2 is horizontally installed on the top of the bracket 1.

[0024] For example, a standing hinge shaft 5 is fixedly installed at the right end of the top surface of the bracket 1, and one end of the seat plate 2 close to the leg support 3 ( Figure 1The right end of the middle seat plate 2 (the right end of the top surface of the support 1) is pivotally connected to the right end of the top surface of the support 1 through a standing hinge shaft 5. In addition, a standing push rod 6 is connected between the seat plate 2 and the support 1. The two ends of the standing push rod 6 are respectively pivotally connected to the seat plate 2 and the support 1 through pins or shafts. The standing push rod 6 can be configured as a pneumatic cylinder, a hydraulic cylinder or an electric cylinder. In this way, the telescopic movement of the standing push rod 6 can drive the seat plate 2 to flip relative to the support 1, so that the angle of the seat plate 2 changes. This angle refers to the included angle between the top surface of the seat plate 2 and the horizontal plane where the top surface of the support 1 is located. When this angle is 180°, the seat plate 2 is arranged horizontally and is completely supported by the top surface of the support 1. At this time, the standing push rod 6 is usually in a contracted state. When the standing push rod 6 extends, the seat plate 2 rotates around the standing hinge shaft 5, that is, the above-mentioned angle decreases accordingly.

[0025] The footrest 4 also has a generally planar structure. According to the actual application scenario, it can be configured as a plate shape or a frame shape. The footrest 4 is arranged horizontally. The footrest 4 is arranged on the right side of the seat plate 2, and the left end of the footrest 4 is connected to the right end of the support 1 through a parallelogram linkage 7. It is easy to understand that the parallelogram linkage 7 is usually configured with two and connected to both sides of the footrest 4 along the width direction.

[0026] The leg support 3 also has a generally planar structure. According to the actual application scenario, it can be configured as a plate shape or a frame shape. The two sides in the width direction of the leg support 3 are respectively fixedly installed on two parallelogram linkages 7 (the linkages on the upper side). For example, the two ends in the width direction of the leg support 3 are respectively fixedly connected to the two parallelogram linkages 7. In this way, when the parallelogram linkage 7 moves, the leg support 3 will change its inclination angle accordingly, so as to support the legs. Or configure the two sides in the width direction of the leg support 3 directly as the components of two parallelogram linkages 8 (that is, the two ends in the width direction of the leg support 3 are respectively used as a linkage). Of course, the footrest 4 and the support 1 can also be respectively used as the two components of the parallelogram linkage 7. That is, the parallelogram linkage 7 can actually have only 1 linkage component. Correspondingly, the leg support 3 is also pivotally connected to the support 1 through the above-mentioned standing hinge shaft 5.

[0027] In addition, a leg-lifting push rod 8 is also connected between the leg support 3 and the support 1. The two ends of the leg-lifting push rod 8 are respectively pivotally connected to the leg support 3 and the support 1 through pins or shafts. The leg-lifting push rod 8 can be configured as a pneumatic cylinder, a hydraulic cylinder or an electric cylinder. In this way, the telescopic movement of the leg-lifting push rod 8 can drive the parallelogram linkage 7 to move, and further, while changing the inclination angle of the leg support 3, it can also keep the footrest 4 horizontal. It is easy to understand that since the leg support 3 is fixedly connected to the parallelogram linkage 7, the two ends of the leg-lifting push rod 8 can also be respectively pivotally connected to the support 1 and the parallelogram linkage 7 (the linkage component in it).

[0028] Thus, when the leg-lifting push rod 8 is in the extended state, the footrest 4 will flip upward while maintaining a horizontal state until the footrest 4 flips to the same height position as the seat plate 2 (the seat plate 2 remains horizontal). The leg support 3 is connected between the footrest 4 and the seat plate 2, and at the same time, the leg support 3 is also at approximately the same horizontal plane as the footrest 4. The user can achieve a lying flat or straight-leg sitting posture on the device provided in this embodiment. When the leg-lifting push rod 8 starts to contract, the footrest 4 will flip downward while maintaining a horizontal state. Correspondingly, the front end of the leg support 3 will tilt downward, and the user's leg posture will change from a straight-leg state to a bent-leg state. And during the change of the leg posture, the footrest 4 always remains horizontal.

[0029] One side of the bottom surface of the footrest 4 is fixedly installed with idler wheels 9. The idler wheels 9 are configured as universal casters. Usually, two idler wheels 9 are arranged at intervals in the width direction. In this way, after the footrest 4 descends in height, the footrest 4 can be supported by the idler wheels 9, thereby preventing tipping. It is easy to understand that in the bent-leg state, the idler wheels 9 usually do not touch the ground. For example, the distance between the idler wheels 9 and the ground ranges from a few millimeters to dozens of millimeters. When the device tilts, the idler wheels 9 will touch the ground accordingly, thus playing a supporting role to prevent tipping.

[0030] It further includes a controller 10. The controller 10 is electrically connected to the leg-lifting push rod 8 and the standing push rod 6 through wires. The controller 10 is configured as an ECU controller.

[0031] It is easy to understand that the device provided in this embodiment can also be used for a wheelchair. Correspondingly, the seat plate 2 can also be configured as a fixed structure according to the application scenario, that is, the seat plate 2 is fixedly connected to the bracket 1. Of course, the seat plate 2 can also be configured with reference to a bed chair.

[0032] The usage process of the assisted device for bending and lifting legs provided by the embodiment of the present utility model is as follows:

[0033] The bed chair has two usage states, which are respectively called the bent-leg state and the leg-lifting state. In the leg-lifting state, the leg-lifting push rod 8 is in the extended state, making both the footrest 4 and the leg support 3 in a substantially horizontal state. The user is in a state of lying flat with straight legs or sitting with straight legs. Then the leg-lifting push rod 8 shortens, driving the leg support 3 to flip downward, and the user's legs will accordingly change to the bent-leg state. Therefore, with the telescopic movement of the leg-lifting push rod 8, the user's legs will change between leg-lifting and leg-bending. In the bent-leg state, as the standing push rod 6 extends, the seat plate 2 flips, changing from a horizontal state to an inclined state, so that the user changes from a sitting or lying posture to a standing posture.

[0034] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A hip flexion and leg raising assistance device, characterized in that: It includes a bracket, a seat plate, a leg support and a foot support; the seat plate is horizontally installed on the top of the bracket; the foot support is horizontally arranged, the foot support is connected to the bracket through a parallelogram linkage mechanism, and a idler wheel is fixedly installed on one side of the bottom surface of the foot support; the leg support is fixed on the parallelogram linkage mechanism, and a leg-lifting push rod is also connected between the leg support and the bracket.

2. The leg-curling and lifting assistance device according to claim 1, wherein: One end of the seat plate adjacent to the leg support is pivotally connected to the bracket through a standing hinge shaft, and a standing push rod is connected between the seat plate and the bracket.

3. The hip flexion and leg raising assisting device according to claim 1, characterized in that: There are two idler wheels and they are arranged at intervals in the width direction.

4. The leg-curling and lifting assisting device according to claim 1, wherein: The idler wheels are universal casters.

5. The leg-curving and lifting assisting device according to claim 2, wherein: It further includes a controller, and the controller is electrically connected to the leg-lifting push rod and the standing push rod.

6. The leg-curving and raising assisting device according to claim 2 or 5, characterized in that: The leg-lifting push rod and the standing push rod are cylinders, hydraulic cylinders or electric cylinders.

7. The hip and knee flexion assistance device according to claim 5, characterized in that: The controller is an ECU controller.

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