Force-adjustable elbow joint rehabilitation training device

Abstract

A strength-adjustable elbow joint rehabilitation training device comprises a horizontal L-shaped base and a driving shaft arranged in one side of the top of the L-shaped base, swing arms are fixed to the two ends of the driving shaft respectively, an arm U-shaped support is rotationally arranged between the outer ends of the swing arms, and a driving swing arm is fixed to the portion, in the L-shaped base, of the driving shaft; the outer end of the driving swing arm is rotationally connected with the telescopic end of the electric telescopic rod through a hinge, the fixed end of the electric telescopic rod is rotationally connected with the inner side wall of the other end in the L-shaped base through another hinge, and an operation button used for controlling the telescopic frequency of the electric telescopic rod is located on the outer side wall of the L-shaped base and located on the surface of the L-shaped base above the driving shaft. And fixing bandages are respectively arranged above the U-shaped bracket. According to the utility model, the length and the moving space of the driving swing arm can be fully ensured, enough driving force is ensured, and high-intensity training can be better adapted; the control difficulty of the device is greatly reduced, the device can be operated by one hand, and a user can conveniently operate and use the device.

Description

Technical Field

[0001] This utility model relates to a training device, specifically an elbow joint rehabilitation training device with adjustable force. Background Technology

[0002] Elbow joint rehabilitation training is an important means of restoring elbow joint function and improving joint range of motion and strength, especially for patients with elbow injuries or after surgery. Here are some commonly used elbow joint rehabilitation training methods:

[0003] 1. Stretching exercises to increase the range of motion of the elbow joint. Method: The patient sits on a chair and extends the injured arm forward with the palm facing up. With the other hand, grasp the wrist of the injured arm and gently pull it backward until you feel a stretch in the elbow. Hold for 15-30 seconds and repeat 3-5 times. Perform 2-3 sets per day. As the training progresses, the degree of stretching can be gradually increased.

[0004] 2. Flexion exercises to enhance the elbow's bending ability. Method: Stand or sit upright, bend the injured arm, and try to touch the shoulder with your hand. If you cannot touch the shoulder, you can use your other hand to help. Gently push the elbow towards the shoulder, hold for 10-15 seconds, then relax. Repeat 10-15 times, and do 2-3 sets every day.

[0005] Chinese patent CN117752982A discloses a bidirectional assisted elbow joint rehabilitation training device in the field of elbow joint rehabilitation training technology. The device includes a support base, a flipping bracket, and a sliding base. The rear end of the flipping bracket is rotatably connected to the front end of the support base. A slider and a drive motor are slidably mounted on the top of the sliding base. A controller is also installed inside the support base. Electromyography (EMG) sensors are installed on both the support base and the flipping bracket. This device can assist patients in passive training as well as provide active training methods, forcing patients to actively use their muscle strength. In the later stages of rehabilitation, it provides resistance training, creating resistance to the patient's movements and thus providing resistance rehabilitation training, effectively helping patients eventually restore the normal state of their elbow joint muscles. Furthermore, three different training methods can be combined within the same stroke to achieve optimal training results. However, the aforementioned device uses an external motor to drive extension or flexion training. This pulling method is not only inconvenient to use, requiring careful connection between the drive device and the active part, but also has relatively weak driving force, making it difficult to adapt to higher intensity training. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this invention is to provide an elbow joint rehabilitation training device with adjustable force.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: an adjustable elbow joint rehabilitation training device, comprising a horizontal L-shaped base and a drive shaft disposed on one side of the top of the L-shaped base. Swing arms are fixed to both ends of the drive shaft, and a U-shaped arm support is rotatably disposed between the outer ends of the swing arms. A drive arm is fixed to the drive shaft inside the L-shaped base, and the outer end of the drive arm is rotatably connected to the telescopic end of an electric telescopic rod via a hinge. The fixed end of the electric telescopic rod is rotatably connected to the inner wall of the other end of the L-shaped base via another hinge. A drive circuit and a lithium battery for driving the extension and retraction of the electric telescopic rod are disposed inside the L-shaped base. An operation button for controlling the extension and retraction frequency of the electric telescopic rod is located on the outer wall of the L-shaped base. Fixing straps are respectively disposed on the surface of the L-shaped base above the drive shaft and above the U-shaped support.

[0008] Furthermore, each side of the swing arm is provided with multiple position adjustment holes arranged in sequence, and the outer sides of both ends of the U-shaped bracket are respectively provided with threaded posts that pass through the corresponding position adjustment holes on both sides, and the outer ends of the threaded posts on each side are respectively screwed with fixing nuts.

[0009] Furthermore, a rubber pad is laid on the surface of the L-shaped base above the drive shaft.

[0010] Furthermore, a layer of fabric padding is fixed to the surface of the U-shaped bracket.

[0011] Furthermore, the outer swing arm ends of the U-shaped bracket are reinforced with an arched connecting plate.

[0012] Furthermore, long strap through holes are provided on both sides of the L-shaped base surface above the drive shaft and at both ends of the U-shaped bracket. Each fixing strap passes through the strap through holes on both sides, and the fixing strap is provided with an adjustment buckle for adjusting the binding length of the fixing strap.

[0013] Furthermore, the L-shaped base has a box-like structure and is internally supported by multiple support rods.

[0014] In use, the arm is placed on the surface of the L-shaped base, with the elbow joint positioned above the drive shaft, i.e., the swinging part of the swing arm. The arm is then secured with the fixing straps. Single-handed operation is achieved via a button on one side. The L-shaped base provides ample installation space for the electric telescopic rod without obstructing other internal components. The electric telescopic rod extends and retracts, driving the swing arm to swing back and forth. This, in turn, drives the arm on the swing arm to bend and extend via the drive shaft. Because the swing arm is located on the wider side of the L-shaped base, sufficient length and movement space for the drive arm are ensured. The longer drive arm allows for a larger extension range of the electric telescopic rod, ensuring sufficient driving force for better adaptation to high-intensity training. Furthermore, controlling the swing arm's movement via the extension and retraction of the electric telescopic rod is easy, significantly reducing the control difficulty of the device. Single-handed operation is convenient for users. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0018] Figure 4 This is a physical reference drawing of the present invention. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The following is a detailed description of this embodiment with reference to the accompanying drawings:

[0022] This embodiment provides an elbow joint rehabilitation training device with adjustable force. Please refer to the accompanying drawings in the instruction manual. Figure 1-4 .

[0023] like Figure 1-4 As shown, an adjustable elbow joint rehabilitation training device includes a horizontal L-shaped base 1 and a drive shaft 2 disposed on one side of the top of the L-shaped base 1. Swing arms 3 are fixed to both ends of the drive shaft, and a U-shaped arm support 4 is rotatably mounted between the outer ends of the swing arms 3. A drive swing arm 5 is fixed to the drive shaft 2 inside the L-shaped base 1. The drive swing arm 5 is tripod-shaped to ensure its strength. The outer end of the drive swing arm 5 is rotatably connected to the telescopic end of an electric telescopic rod 7 via a hinge 6. The fixed end of the electric telescopic rod 7 is rotatably connected to the inner wall of the other end of the L-shaped base 1 via another hinge 6. A drive mechanism for driving the extension and retraction of the electric telescopic rod 7 is provided inside the L-shaped base 1. The operating circuit and lithium battery 8 are used to control the extension frequency of the electric telescopic rod 7. The operating button is located on the outer wall of the L-shaped base 1. The electric telescopic rod 7 is driven by a motor. The drive circuit can adopt the commonly used motor forward and reverse frequency conversion control circuit (i.e., motor frequency converter). Fixing straps 9 are respectively provided on the surface of the L-shaped base 1 above the drive shaft 2 and on the top of the U-shaped bracket 4. Specifically, long strip-shaped strap holes 15 are respectively provided on both sides of the surface of the L-shaped base 1 above the drive shaft 2 and at both ends of the U-shaped bracket 4. Each fixing strap 9 passes through the strap holes 15 on both sides. The fixing strap 9 is provided with an adjustment buckle for adjusting the binding length of the fixing strap 9.

[0024] To facilitate the adjustment of the position of the U-shaped bracket 4 and thus adapt to different groups of people, each side of the swing arm 3 is provided with multiple position adjustment holes 10 arranged in sequence. The outer sides of both ends of the U-shaped bracket 4 are respectively provided with threaded posts that pass through the corresponding position adjustment holes 10 on both sides, and the outer ends of the threaded posts on each side are respectively screwed with fixing nuts 11.

[0025] To ensure comfort during use, a rubber pad 12 is laid on the surface of the L-shaped base 1 above the drive shaft 2, and a fabric pad 13 is fixed on the surface of the U-shaped bracket 4.

[0026] To ensure overall strength, the ends of the outer swing arms 3 of the U-shaped bracket 4 are reinforced by an arched connecting plate 14. The L-shaped base 1 has a box structure and is internally supported by multiple support rods 16.

[0027] The working principle of this utility model is as follows: During use, the swing arm 3 is horizontal. The arm is placed on the surface of the L-shaped base 1, with the elbow joint positioned above the drive shaft 2, i.e., the swinging part of the swing arm 3. The arm is then secured with the fixing straps 9. Single-handed operation is achieved via the control button on one side. The L-shaped base 1 is L-shaped, and the entire electric telescopic rod 7 is located within it, ensuring sufficient extension range and strength. This provides ample installation space for the electric telescopic rod 7 without obstructing other internal components. The extension and retraction of the electric telescopic rod 7 drives the drive swing arm 5 to swing back and forth, thereby driving the arm on the swing arm 3 via the drive shaft 2. For bending and stretching movements, since the swing arm 3 is located on the wider side of the L-shaped base 1, the length and movement space of the drive swing arm 5 can be fully guaranteed. That is, the drive swing arm 5 is longer, and the extension range of the electric telescopic rod 7 is also larger, ensuring sufficient driving force to better adapt to high-intensity training. In addition, the swing arm 3 is driven to swing by extending and retracting the electric telescopic rod 7. The extension range and extension frequency of the electric telescopic rod 7 can be easily achieved by controlling the forward and reverse rotation time of the motor of the electric telescopic rod 7. The forward and reverse rotation time control of the motor is already existing technology and is very easy to implement. Therefore, the control difficulty of the device is greatly reduced, and it can be operated with one hand, making it convenient for users to operate.

[0028] Of course, the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An elbow joint rehabilitation training device with adjustable force, comprising a horizontal L-shaped base (1) and a drive shaft (2) disposed on one side of the top of the L-shaped base (1), characterized in that: Swing arms (3) are fixed at both ends of the drive shaft. A U-shaped bracket (4) is rotatably set between the outer ends of the swing arms (3). A drive arm (5) is fixed on the drive shaft (2) inside the L-shaped base (1). The outer end of the drive arm (5) is rotatably connected to the telescopic end of the electric telescopic rod (7) through a hinge (6). The fixed end of the electric telescopic rod (7) is rotatably connected to the inner side wall of the other end inside the L-shaped base (1) through another hinge (6). A drive circuit and a lithium battery (8) for driving the electric telescopic rod (7) to extend and retract are provided inside the L-shaped base (1). The operation button for controlling the extension and retraction frequency of the electric telescopic rod (7) is located on the outer side wall of the L-shaped base (1). Fixing straps (9) are respectively set on the surface of the L-shaped base (1) above the drive shaft (2) and above the U-shaped bracket (4).

2. The elbow joint rehabilitation training device with adjustable force according to claim 1, characterized in that: Each side has a swing arm (3) with multiple position adjustment holes (10) arranged in sequence. The outer sides of both ends of the U-shaped bracket (4) are respectively provided with threaded posts that pass through the corresponding position adjustment holes (10) on both sides, and the outer ends of the threaded posts on each side are respectively screwed with fixing nuts (11).

3. The elbow joint rehabilitation training device with adjustable force according to claim 1, characterized in that: A rubber pad (12) is laid on the surface of the L-shaped base (1) above the drive shaft (2).

4. The elbow joint rehabilitation training device with adjustable force according to claim 1, characterized in that: A layer of fabric padding (13) is fixed to the surface of the U-shaped bracket (4).

5. The elbow joint rehabilitation training device with adjustable force according to claim 1, characterized in that: The outer end swing arm (3) of the U-shaped bracket (4) is reinforced by an arched connecting plate (14).

6. The elbow joint rehabilitation training device with adjustable force according to claim 1, characterized in that: On both sides of the L-shaped base (1) above the drive shaft (2) and at both ends of the U-shaped bracket (4), there are long strip-shaped strap through holes (15). Each fixing strap (9) passes through the strap through holes (15) on both sides. The fixing strap (9) is provided with an adjustment buckle for adjusting the binding length of the fixing strap (9).

7. The elbow joint rehabilitation training device with adjustable force according to claim 1, characterized in that: The L-shaped base (1) is a box structure, and has multiple support rods (16) inside.

Images