A weight-reducing floating device for gait training

Abstract

The invention discloses a weight-reducing floating device for gait training, which belongs to the technical field of gait training devices and comprises: a frame, the frame is provided with a cantilever, and the cantilever is provided with a fixed pulley; a mechanical leg is arranged under the cantilever; a rope, one end of which is connected to the mechanical leg, the rope passes around the fixed pulley, a movable pulley is passed around the rope, a pulley seat is provided on the movable pulley, and the other end is connected to the frame; a connecting frame, the connecting frame is movably connected to the pulley seat; a first spring, one end of which is connected to the connecting frame, and the other end is connected to the frame; a floating assembly, the floating assembly comprises a first connecting rod, an inclined second connecting rod and a second spring; the rope and the spring of the invention are connected by a movable pulley, when the height of the mechanical leg changes, the rope moves accordingly under the action of the spring, and the movable pulley can greatly reduce the expansion and contraction amount of the spring, so as to ensure that the pulling force of the rope on the mechanical leg does not change sharply, and can maintain a continuous and stable pulling force on the mechanical leg.

Description

Technical Field

[0001] The invention relates to the technical field of gait training devices, and in particular to a weight-reducing floating device for gait training. Background Art

[0002] Walking is the most basic movement in daily life. In the early rehabilitation treatment goals and training plans, the necessary functions of walking should be fully considered and carefully guided and implemented to lay a solid foundation for future walking therapy and mobility training.

[0003] Coordination, mobility and stability are the three elements of walking. Normal walking requires the ability to support body weight, maintain balance and take steps. The movements involved in walking (heel landing, single-leg support, heel off the ground, leg swing, etc.) require coordinated movements of all parts of the body to form a complete, fine, skilled and continuous process in walking. For patients who have lost the ability to walk, the specific training plans will vary greatly due to different diseases, causes of obstacles, existing problems and rehabilitation goals. Rehabilitation therapists should select appropriate gait training devices and develop personalized training plans based on a correct analysis of the patient's problems.

[0004] Gait training mainly includes standing weight-bearing training, center of gravity movement training, walking training, walking training in daily life environment, etc. Among them, most of the gait training contents require gait training devices to be carried out.

[0005] Patients who have lost or partially lost their ability to walk need to use the mechanical legs on the gait training device for auxiliary training during gait training. Since the patient's control over the body is poor and the mechanical legs themselves have a certain weight, during the gait training process, the mechanical legs need to move with the patient's legs, which will inevitably cause the patient's legs to bear additional gravity. In order to avoid this situation, the mechanical legs are usually pulled from above by a suspended rope, which can effectively avoid the weight of the mechanical legs themselves from pressing on the patient. However, when the patient is training, the mechanical legs inevitably need to move in the vertical direction, and the existing suspended ropes are difficult to maintain a continuous and stable pulling force on the mechanical legs. Furthermore, especially when the mechanical legs move in a large amplitude in the vertical direction, the deformation of the spring of the pulling rope is large, and the elastic force generated is no longer a linear change, which makes the difference between the pulling force of the rope on the mechanical legs and the gravity of the mechanical legs significantly larger, so that a large additional external force will act on the patient's legs, which will increase the burden on the patient, affect the patient's gait training effect, and also pose a safety hazard. Summary of the invention

[0006] In order to solve the problems existing in the prior art, the present invention provides a weight-reducing floating device for gait training, which utilizes a first spring to provide a pulling force of the rope on the mechanical leg. When the mechanical leg moves with a large amplitude, the floating assembly can effectively compensate for the pulling force error caused by excessive deformation of the first spring, so that the pulling force of the rope on the mechanical leg remains stable, does not increase the burden on the patient, ensures the gait training effect of the patient, and does not pose a safety hazard.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A weight-reducing floating device for gait training, comprising:

[0009] A frame, wherein a cantilever is provided on the top of the frame, and a fixed pulley is provided on the cantilever;

[0010] A mechanical leg, the mechanical leg being arranged below the cantilever;

[0011] A rope, one end of which is connected to the mechanical leg, the rope is passed around the fixed pulley, a movable pulley is passed around the rope, a pulley seat is provided on the movable pulley, and the other end of the rope is connected to the frame;

[0012] A connecting frame, wherein the connecting frame is movably connected to the pulley seat, and the pulley seat can move in a direction close to or away from the connecting frame;

[0013] a first spring, one end of which is connected to the pulley seat, and the other end of which is connected to the frame;

[0014] A floating assembly, the floating assembly includes a first connecting rod, an inclined second connecting rod and a second spring, one end of the first connecting rod is rotatably connected to the pulley seat, the other end of the first connecting rod is fixedly connected to the lower end of the second connecting rod, the lower end of the second connecting rod is rotatably connected to the connecting frame, the upper end of the second connecting rod is connected to the second spring, and the other end of the second spring is connected to the connecting frame.

[0015] As a preferred technical solution, the number of the fixed pulley is multiple; and / or the number of the first spring is multiple; and / or the number of the second spring is multiple.

[0016] As a preferred technical solution, the connection frame includes a horizontally arranged connection transverse plate and a connection vertical plate arranged on one side of the connection transverse plate.

[0017] As a preferred technical solution, a guide column is provided between the connecting cross plate and the pulley seat, one end of the guide column is fixedly connected to the pulley seat, a guide hole is provided on the connecting cross plate, the other end of the guide column passes through the guide hole and is connected to the connecting seat, and the first spring is connected to the connecting seat.

[0018] As a preferred technical solution, a limit block is provided on the guide column in an area between the connecting horizontal plate and the connecting seat.

[0019] As a preferred technical solution, the pulley seat is provided with a rotating seat rotatably connected to the pulley seat, and the first connecting rod is movably connected to the rotating seat.

[0020] As a preferred technical solution, two first connecting rods are provided, two movable holes are provided on the rotating seat, the two first connecting rods pass through the two movable holes respectively, and a connecting strip is provided between the ends of the two first connecting rods away from the second connecting rod for connection.

[0021] As a preferred technical solution, the second connecting rod is rotatably connected to the upper end of the connecting vertical plate, and the second spring is connected to the lower end of the connecting vertical plate.

[0022] As a preferred technical solution, a third connecting rod is provided between the second connecting rod and the second spring, one end of the third connecting rod is rotatably connected to the upper end of the second connecting rod, and the other end of the third connecting rod is connected to the second spring.

[0023] As a preferred technical solution, the first connecting rod and the second connecting rod are vertically arranged.

[0024] The beneficial effects of the present invention are as follows:

[0025] The present invention utilizes the first spring to provide a pulling force for the rope to the mechanical leg. When the mechanical leg moves with a large amplitude, the floating component can effectively compensate for the pulling force error caused by excessive deformation of the first spring, so that the pulling force of the rope on the mechanical leg remains stable, does not increase the burden on the patient, ensures the gait training effect of the patient, and does not pose a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a weight-reducing floating device for gait training of the present invention;

[0027] Figure 2 for Figure 1 Side view of

[0028] Figure 3 for Figure 1 Schematic diagram of the structure of the floating component.

[0029] In the figure: 1-frame, 11-cantilever, 12-fixed pulley, 2-mechanical leg, 3-rope, 31-movable pulley, 32-pulley seat, 33-rotating seat, 34-guide column, 35-limiting block, 41-connecting horizontal plate, 42-connecting vertical plate, 5-first spring, 61-first connecting rod, 62-second connecting rod, 63-second spring, 64-third connecting rod. DETAILED DESCRIPTION

[0030] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0031] Please refer to Figure 1-Figure 3 , is an embodiment of a weight-reducing floating device for gait training of the present invention, comprising:

[0032] A frame 1, a cantilever 11 is provided on the top of the frame 1, and a fixed pulley 12 is provided on the cantilever 11;

[0033] Mechanical leg 2, the mechanical leg 2 is arranged below the cantilever 11;

[0034] Rope 3, one end of which is connected to the mechanical leg 2, the rope 3 is passed around the fixed pulley 12, a movable pulley 31 is passed around the rope 3, a pulley seat 32 is provided on the movable pulley 31, and the other end of the rope 3 is connected to the frame 1; the rope 3 applies an upward pulling force to the mechanical leg 2, and when the mechanical leg 2 moves in the vertical direction, the rope 3 can move accordingly under the action of the fixed pulley 12;

[0035] The connecting frame is movably connected to the pulley seat 32, and the pulley seat 32 can move in a direction close to or away from the connecting frame; specifically, the connecting frame is fixed on the frame 1, and when the mechanical leg 2 moves in the vertical direction, the rope 3 and the movable pulley 31 move accordingly, and the movable pulley 31 and the connecting frame will move relative to each other;

[0036] A first spring 5, one end of which is connected to the pulley seat 32, and the other end of which is connected to the frame 1; the first spring 5 is always in an extended state, exerting tension on the rope 3 to ensure the stability of the pulling force of the rope 3 on the mechanical leg 2;

[0037] The floating assembly includes a first connecting rod 61, an inclined second connecting rod 62 and a second spring 63. One end of the first connecting rod 61 is rotatably connected to the pulley seat 32, the other end of the first connecting rod 61 is fixedly connected to the lower end of the second connecting rod 62, the lower end of the second connecting rod 62 is rotatably connected to the connecting frame, the upper end of the second connecting rod 62 is connected to the second spring 63, and the other end of the second spring 63 is connected to the connecting frame; when the mechanical leg 2 moves upward, the pulley seat 32 descends, the first spring 5 contracts, and the tension on the rope 3 is reduced. At the same time, the first connecting rod 61 will drive the second connecting rod 62 to rotate upward, so that the second spring 63 is extended, which can produce an inhibitory effect. The elastic force of the pulley seat 32 moving downward can effectively compensate for the tension of the first spring 5, so that the tension of the rope 3 remains stable; similarly, when the mechanical leg 2 moves downward, the pulley seat 32 rises, the first spring 5 expands, and the tension on the rope 3 increases. At the same time, the first connecting rod 61 will drive the second connecting rod 62 to rotate downward, so that the second spring 63 contracts, which can reduce the elastic force on the pulley seat 32 to move upward; when the pulley seat 32 moves, the changes in the elastic force of the pulley seat 32 by the first spring 5 and the second spring 63 are always opposite, and the second spring 63 can effectively compensate for the elastic force of the first spring 5, effectively ensuring that the force on the pulley seat 32 is more stable.

[0038] In this embodiment, please refer to Figure 1 and Figure 2 The fixed pulley 12 is set as a plurality of fixed pulleys 12 arranged along the extension direction of the rope 3, which can ensure that the rope 3 can move freely; the first spring 5 and the second spring 63 are both set as a plurality of, which can ensure the stability of the elastic force applied by the first spring 5 and the second spring 63 to the rope 3.

[0039] In this embodiment, please refer to Figure 1-Figure 3 The connection frame includes a horizontally arranged connection horizontal plate 41 and a connection vertical plate 42 arranged on one side of the connection horizontal plate 41. Specifically, the connection horizontal plate 41 is fixed on the frame 1, and a guide column 34 is arranged between the connection horizontal plate 41 and the pulley seat 32. One end of the guide column 34 is fixedly connected to the pulley seat 32. A guide hole is arranged on the connection horizontal plate 41, and the other end of the guide column 34 passes through the guide hole and is connected to the connection seat, so that it can move in the direction away from or close to the connection horizontal plate 41; the first spring 5 is connected to the connection seat to achieve the pulling force on the rope 3. Furthermore, a limit block 35 is arranged on the guide column 34 in the area between the connection horizontal plate 41 and the connection seat, so that the pulley seat 32 can move within a certain range, that is, when the mechanical leg 2 moves upward, the pulley seat 32 can move in the direction close to the connection horizontal plate 41.

[0040] In this embodiment, please refer to Figure 1-Figure 3The pulley seat 32 is provided with a rotating seat 33 rotatably connected to the pulley seat 32, and the first connecting rod 61 is movably connected to the rotating seat 33; specifically, two first connecting rods 61 are provided, and two moving holes are provided on the rotating seat 33. The two first connecting rods 61 pass through the two moving holes respectively, and a connecting strip is provided between the ends of the two first connecting rods 61 away from the second connecting rod 62 for connection, so that when the pulley seat 32 moves in the vertical direction, the first connecting rod 61 can swing relatively, driving the second connecting rod 62 to swing.

[0041] In this embodiment, please refer to Figure 1-Figure 3 The second connecting rod 62 is rotatably connected to the upper end of the connecting vertical plate 42, and the second spring 63 is connected to the lower end of the connecting vertical plate 42. The second spring 63 is vertically arranged, so that the second connecting rod 62 always has a tendency to rotate downward; specifically, a third connecting rod 64 is provided between the second connecting rod 62 and the second spring 63, one end of the third connecting rod 64 is rotatably connected to the upper end of the second connecting rod 62, and the other end of the third connecting rod 64 is connected to the second spring 63. Through the third connecting rod 64, the force of the second spring 63 can be better acted on the third connecting rod 64, and it is easy to install and disassemble.

[0042] In this embodiment, please refer to Figure 1-Figure 3 The first connecting rod 61 and the second connecting rod 62 are vertically arranged. When the first connecting rod 61 swings, it can better drive the second connecting rod 62 to swing.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A weight-reducing floating device for gait training, characterized in that: include: A frame, wherein a cantilever is provided on the top of the frame, and a fixed pulley is provided on the cantilever; A mechanical leg, the mechanical leg being arranged below the cantilever; A rope, one end of which is connected to the mechanical leg, the rope is passed around the fixed pulley, a movable pulley is passed around the rope, a pulley seat is provided on the movable pulley, and the other end of the rope is connected to the frame; A connecting frame, wherein the connecting frame is movably connected to the pulley seat, and the pulley seat can move in a direction close to or away from the connecting frame; the connecting frame comprises a horizontally arranged connecting horizontal plate and a connecting vertical plate arranged on one side of the connecting horizontal plate; a first spring, one end of which is connected to the pulley seat, and the other end of which is connected to the frame; A floating assembly, the floating assembly comprising a first connecting rod, an inclined second connecting rod and a second spring, one end of the first connecting rod is rotatably connected to the pulley seat, the other end of the first connecting rod is fixedly connected to the lower end of the second connecting rod, the lower end of the second connecting rod is rotatably connected to the connecting frame, the upper end of the second connecting rod is connected to the second spring, and the other end of the second spring is connected to the connecting frame; the second connecting rod is rotatably connected to the upper end of the connecting vertical plate, and the second spring is connected to the lower end of the connecting vertical plate; When the pulley seat moves, the first spring and the second spring always change the elastic force of the pulley seat in opposite ways, and the second spring compensates for the elastic force of the first spring; The pulley seat is provided with a rotating seat rotatably connected to the pulley seat, and the first connecting rod is movably connected to the rotating seat; the first connecting rod is provided with two, and the rotating seat is provided with two moving holes, and the two first connecting rods pass through the two moving holes respectively, and a connecting strip is provided between the ends of the two first connecting rods away from the second connecting rod for connection.

2. A weight-reducing floating device for gait training according to claim 1, characterized in that: The fixed pulley is provided in plurality; and / or the first spring is provided in plurality; and / or the second spring is provided in plurality.

3. A weight-reducing floating device for gait training according to claim 1, characterized in that: A guide column is provided between the connecting cross plate and the pulley seat, one end of the guide column is fixedly connected to the pulley seat, a guide hole is provided on the connecting cross plate, the other end of the guide column passes through the guide hole and is connected to the connecting seat, and the first spring is connected to the connecting seat.

4. A weight-reducing floating device for gait training according to claim 3, characterized in that: A limiting block is provided on the guide column in an area between the connecting transverse plate and the connecting seat.

5. A weight-reducing floating device for gait training according to claim 1, characterized in that: A third connecting rod is provided between the second connecting rod and the second spring, one end of the third connecting rod is rotatably connected to the upper end of the second connecting rod, and the other end of the third connecting rod is connected to the second spring.

6. A weight-reducing floating device for gait training according to claim 1, characterized in that: The first connecting rod and the second connecting rod are arranged perpendicularly.

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