Six-degree-of-freedom wearable arm joint movement auxiliary device

Abstract

The utility model relates to a six-degree-of-freedom wearable arm joint movement assisting device, and belongs to the technical field of arm joint protection and movement assisting devices. The wearing device comprises a big and small arm fixing device, a motion adjusting disc, an arm adapting assembly and a movable buckle. Each of the large arm fixing device and the small arm fixing device comprises an elastic fiber sleeve, an alloy buckle with an earring-shaped opening, a chain type iron matching groove and a stabilizing block; the motion adjusting disc comprises a wire coil, a rotation stopping shaft and an external rotation stopping rod. The movable buckle is connected with the forearm fixing device in a buckling manner; the motion adjusting disc and the big arm fixing device are connected in a fastening mode through bolts. When the product is in the straightening working condition, the thin wire is lengthened, the size of the large and small arm fixing device and the length of the wire rope are convenient to adjust, and the product is convenient to wear; when the product is in a contraction working condition, the thin wire is wound on the wire coil, the thin wire is protected, the size is reduced, and carrying is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of arm joint protection and motion auxiliary devices, and relates to a six-degree-of-freedom wearable arm joint motion auxiliary device. Background Art

[0002] With the in-depth promotion of Healthy China, more and more people pay more attention to their own health and actively participate in physical exercise. In professional physical exercise, professional fitness personnel cause arm hyperextension and damage arm joints when they perform arm stretching exercises to achieve better results; in the daily exercise of ordinary people, some exercisers hyperextend their elbows, resulting in wrist strain. Due to incorrect force methods such as shrugging shoulders and collapsing waists, the waist core is affected, resulting in the inability to correct the posture, affecting the efficiency of exercise and increasing the risk of injury. There are few designs for protecting arm joint hyperextension devices at home and abroad. Among them, the upper limb rehabilitation robot of a four-degree-of-freedom wearable upper limb exercise auxiliary device of Chongqing University can be used to prevent elbow hyperextension (CN201810587631.6). It is fixed by the shoulder and back and driven by a motor and an electric rotating rod. Although it can prevent arm hyperextension to a certain extent, compared with the utility model, its adjustment is cumbersome, inconvenient to use, complex structure, poor stability and high cost. Furthermore, most of the devices on the market to prevent arm joint hyperextension achieve the purpose of auxiliary exercise by fixing the arm, which often restricts arm movement and has low portability. Therefore, there is an urgent need for a convenient, effective, stable and low-cost arm joint motion auxiliary device. Utility Model Content

[0003] Aiming at the deficiencies of the prior art, a device is provided to prevent arm hyperextension and protect the arm in daily fitness and professional physical training without affecting the normal extension of the body. The utility model includes the flexion and extension of the elbow joint; the pronation and supination freedom of the forearm; and the palmar flexion, dorsiflexion, radial deviation and ulnar deviation freedom of the wrist joint. It protects the movement and ensures the flexibility of the arm.

[0004] The utility model provides the following technical solutions:

[0005] The wearable device includes upper and lower arm fixing devices, a motion adjustment disk, an arm adaptation component, and a movable buckle; the upper and lower arm fixing devices both include an upper arm elastic fiber sleeve, an upper arm earring-shaped alloy buckle, a stabilizing block, a forearm elastic fiber sleeve, and a forearm earring-shaped alloy buckle; the motion adjustment disk includes a wire drum, a rolling bearing, a rotation-blocking shaft, and an external adjustment shaft; the arm adaptation component includes a chain-type iron matching groove, an upper arm earring-shaped alloy buckle, and a forearm earring-shaped alloy buckle; the movable buckle and the polyethylene cord provide connection; the upper arm fixing device is stretched and extended by a rope and connected to the movable buckle rope, and the movable buckle is connected to the forearm fixing device in a buckling manner; the motion adjustment disk and the upper arm fixing device are fastened and connected by bolts; the adjustment shaft and the wire drum are connected by threading; the earring-shaped opening gold buckle is directly matched with the chain-type iron matching groove.

[0006] Furthermore, the product can adjust the diameter of the upper and lower arm fixing devices to adapt to arms of different arm circumferences, thereby improving the fit between the fixing device and the arm, enhancing stability, and having strong applicability.

[0007] Furthermore, the motion adjustment disk is composed of a stabilizing block, a rolling bearing, a rotation blocking shaft, a wire drum, and an external adjustment rod. The stabilizing block is connected to the ring buckle by screws through the middle hole. The rotating shaft is a double-layer design to support and wrap the polyethylene string. The bearing enables the rotating shaft to rotate normally to prevent jamming, making it easier and faster to retract and release the rope.

[0008] Furthermore, the rotating shaft is connected to the motion adjustment disk and the external adjustment rod in sequence, and the three adjust the line length together. When the line length reaches the required length of the movement, the external adjustment rod is inserted into the motion adjustment disk to prevent the rotating disk from rotating, so that the length is effectively fixed.

[0009] The principle and effect of the utility model are:

[0010] Compared with the prior art, the utility model breaks the restriction of assisting movement by fixing joints. The arm joint movement auxiliary device is installed on the upper and lower arms accordingly, and the diameter of the arm adaptation component is adjusted to adapt to users with different arm circumferences. The adjustment shaft is rotated to adjust the line length to adapt to arms with different flexion and extension lengths. The rope is stretched to the required length. Thus, the arm is extended. Due to the limitation of the rope length, the upper limit of the rotation angle is 180°, which protects the arm joint and the corresponding muscles during exercise. The arm is bent, the rope is relaxed, and the arm can be bent and moved freely without being restricted by the rope. The utility model protects the arm joint by pulling the rope, and a winding device is composed of a plurality of components. It can reduce the burden caused by the overly complicated protective device without hindering normal movement. In addition, the utility model is easy to wear and carry, has a low cost, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a six-degree-of-freedom wearable arm joint motion assist device;

[0012] Figure 2 is a schematic diagram of a winding device;

[0013] Figure 3 This is a diagram of the arm bending when wearing;

[0014] Figure 4 This is a diagram of the arm being stretched straight when wearing the garment;

[0015] In the figure: 1-1 upper arm elastic fiber sleeve, 1-2 lower arm elastic fiber sleeve, 2-1 upper arm with earring-shaped alloy buckle, 2-2 lower arm with earring-shaped alloy buckle, 3 stabilizing block, 4 anti-rotating disc, 4-1 rolling bearing, 4-2 anti-rotating shaft, 5 external adjustment rod (to adjust line length), 6 chain-type iron matching groove, 7 movable buckle, 8 polyethylene rope. DETAILED DESCRIPTION

[0016] The following is a detailed description of examples of the present utility model in conjunction with the accompanying drawings.

[0017] Implementation as shown in the figure: A six-degree-of-freedom wearable arm joint motion auxiliary device, including upper and lower arm fixing devices, motion adjustment disk, arm adaptation components, and movable buckles. The upper and lower arm fixing devices include upper arm elastic fiber sleeves 1-1, upper arm earring-shaped alloy buckles 2-1, stabilizing blocks 3, lower arm elastic fiber sleeves 1-2, and lower arm earring-shaped alloy buckles 2-2; the motion adjustment disk includes a stabilizing block 3, a rotation blocking disk 4, a bearing 4-1, a rotation blocking shaft 4-2, and an external adjustment rod 5; the arm adaptation component includes a chain iron matching groove 6, an upper arm earring-shaped alloy buckle 2-1, and a lower arm earring-shaped alloy buckle 2-2; the movable buckle is 7; and the polyethylene string is 8. The upper arm fixing device is stretched and connected to the movable buckle rope by a rope, and the movable buckle is buckled and connected to the lower arm fixing device; the motion adjustment disk and the upper arm fixing device are fastened by bolts; the anti-rotation shaft and the anti-rotation disk are connected by threading; the earring-shaped alloy buckle is directly matched with the chain iron matching groove. The upper and lower arm elastic fiber sleeves, earring-shaped alloy buckles, motion adjustment disks, movable buckles, and the arm fixing device are arm tubes including fine-tuning locking devices (arm adaptation components) and elastic fiber sleeves.

[0018] Referring to the figure, the utility model includes an upper arm elastic fiber sleeve 1-1, a lower arm elastic fiber sleeve 1-2, an upper arm earring-shaped alloy buckle 2-1, a lower arm earring-shaped alloy buckle 2-2, a motion adjustment disk (stabilizing block 3, anti-rotation disk 4, bearing 4-1, anti-rotation shaft 4-2, external adjustment rod 5), a chain-type iron matching groove 6, a movable buckle 7, and a polyethylene rope 8. In the figure, the upper arm fixing device 1-1 is provided with a chain-type iron matching groove 6, and the earring-shaped alloy buckle 2-1 is an incompletely closed annular structure, which cooperates with the upper arm fixing device. The stabilizing block structure 3 is fastened to the structure 2-1 by bolts, the motion adjustment disk is connected to the rotating shaft on the structure 3, and the external adjustment shaft 5 is connected to the corresponding rotating shaft and is adjacent to the motion adjustment disk. The end of the rope is connected to the movable buckle.

[0019] The six-degree-of-freedom wearable arm joint motion auxiliary device is installed on the upper and lower arms respectively, and the diameter of the arm adaptation component is adjusted to adapt to users with different arm circumferences, and the external adjustment rod 5 is rotated to adjust the line length to adapt to arms with different flexion and extension lengths. The rope is stretched to reach the required length, and the anti-rotation rod part can be rotated by rotating the external adjustment rod 5 clockwise to make the thin line clip into the notch of the anti-rotation disk 4 to fix the length of the thin line. The movable buckle 7 at the end of the rope is opened and connected to the inner hole of the earring-shaped alloy buckle to further fix the length of the rope to prevent the arm from being over-extended during exercise.

[0020] Therefore, when the arm is extended, the rotation angle is limited to 180° due to the length of the rope, which prevents the arm from being overextended and protects the arm joints and corresponding muscles during exercise. When the arm is bent, the rope is relaxed and can be bent freely without being restricted by the length of the rope, which improves flexibility.

[0021] A six-degree-of-freedom wearable arm joint motion assisting device, as shown in the figure, includes a large arm fixing device with a default diameter of 11 cm, and the cloth part is made of polyester fiber. The iron matching groove on it matches with a 1 cm wide and 0.8 cm thick earring-shaped alloy buckle. The ear-type structure on the alloy buckle is a hexagonal countersunk screw type 1 hole M6 connected to the stabilizing block through the corresponding screw. Figure 2 The middle diameter shaft of the moving adjustment disk structure on the stabilizing block shown is a double-layer design, with the first layer having a diameter of 2 cm and the second layer having a diameter of 2.8 cm, which plays the role of supporting the disk-type anti-rotation device, and a rolling bearing is sleeved on the shaft. An external adjustment rod is installed on the shaft shown, and its upper hole diameter is 2 cm and directly matches the middle shaft. The large and small arm fixing devices are connected by a polyethylene rope, one end of the rope is wrapped around the bearing and the other end is connected to the movable buckle on the small arm fixing device, and the movable buckle is buckled with the ear alloy buckle of the small arm fixing device, and its upper ear structure is a through hole with a diameter of 1.5 cm.

[0022] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model, and are not intended to limit the utility model in any form. Although the above embodiments and specifications only describe the principle of the utility model, various changes can be made to them in form or detail, but they cannot deviate from the scope defined by the claims of the utility model. The protection scope of the utility model shall be based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model shall fall within the protection scope of the technical solution of the utility model.

Claims

1. A six-degree-of-freedom wearable arm joint motion assisting device, characterized in that: The wearable device comprises upper and lower arm fixing devices, a motion adjustment disk, an arm adaptation component, and a movable buckle; the upper and lower arm fixing devices each comprise an upper arm elastic fiber sleeve (1-1), an upper arm earring-shaped alloy buckle (2-1), a stabilizing block (3), an lower arm elastic fiber sleeve (1-2), and an upper arm earring-shaped alloy buckle (2-2); the motion adjustment disk comprises a wire drum (4), a rolling bearing (4-1), a rotation-blocking shaft (4-2), and an external adjustment shaft (5); the arm adaptation component comprises A chain-type iron matching groove (6), an upper arm with an earring-shaped alloy buckle (2-1) and a lower arm with an earring-shaped alloy buckle (2-2); a movable buckle (7) and a polyethylene string (8) provide connection; the upper arm fixing device is stretched and connected to the movable buckle rope by a rope, and the movable buckle is connected to the lower arm fixing device in a buckling manner; the motion adjustment disk is connected to the upper arm fixing device by bolt fastening; the adjustment shaft is connected to the wire reel by thread connection; the earring-shaped opening gold buckle is directly matched with the chain-type iron matching groove.

2. A six-degree-of-freedom wearable arm joint motion assisting device according to claim 1, characterized in that: The motion adjustment disk comprises a stabilizing block (3), a rolling bearing (4-1), a rotation blocking shaft (4-2), a wire drum (4) and an external adjustment rod; the stabilizing block (3) is connected to an earring-shaped alloy buckle by screws through a hole in the middle; the rotation blocking shaft (4-2) is a double-layer design, supporting and winding a polyethylene string (8); the rolling bearing (4-1) enables the rotation blocking shaft (4-2) to rotate normally to prevent it from getting stuck; the rotation blocking shaft (4-2) is connected to the motion adjustment disk and the external adjustment rod in sequence, and the three adjust the wire length together; when the wire length reaches the required length for the motion, the external adjustment rod is inserted into the motion adjustment disk to prevent the rotation of the turntable, so that the length is effectively fixed.

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