Knee joint movement booster

Abstract

The knee joint movement booster comprises boosting arms, an adjusting assembly and a limiting assembly, the boosting arms comprise thigh boosting arms and shank boosting arms, one ends of the two boosting arms are movably connected with each other, the boosting arms are sleeved with the adjusting assembly, and the adjusting assembly is used for adjusting the position of the adjusting assembly on the boosting arms and the tightness of a ribbon. The knee joint movement booster can adapt to the legs of various crowds, it is guaranteed that the knee joint movement booster is tightly attached to the legs, the limiting assembly is arranged on the thigh boosting arm and made of elastic materials, the limiting assembly is used for limiting the rotation angle of the boosting arm and meanwhile can play a buffering role, and the wearing comfort and boosting precision of the booster are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power assisters, in particular to a knee joint movement power asister. BACKGROUND

[0002] The knee joint movement power asister is an intelligent device for providing support, protection and assistance for the knee joint, which plays a role in reducing joint burden, assisting the walking of the motion-impaired and strengthening the motion performance. The wearing of the device directly affects the exertion of its functional effect. The adjusting assembly of the knee joint movement power asister on the market currently only provides a few fixed gears, which makes it difficult to match various leg types, and cannot guarantee that the power asister is closely fitted to the leg, which is prone to local compression or loosening of the power asister on the leg, thereby weakening the power accuracy and possibly causing discomfort in long-term use. SUMMARY

[0003] In view of the defects of the existing power asister, the technical problem to be solved by the present application is to provide a knee joint movement power asister capable of adapting to the legs of various people, improving the wearing comfort and power accuracy of the power asister.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present application, the present application is realized through the following technical measures: the knee joint movement power asister comprises a power arm, an adjusting assembly and a limiting assembly, the power arm comprises a thigh power arm and a calf power arm, the two power arms are movably connected at one end, the adjusting assembly is sleeved on the power arm, the adjusting assembly is used for adjusting the position of the adjusting assembly on the power arm and the tightness of the strap, and the limiting assembly is arranged on the thigh power arm and is used for limiting the rotation angle of the power arm.

[0005] Further, a plurality of clamping interfaces I are arranged on the power arm, the adjusting assembly comprises adjusting blocks I and II, a cover plate, strap racks I and II and a strap, the adjusting block I is provided with sliding grooves I, II and III and a sliding rod, one end of the sliding groove I is provided with a clamping column I, and the clamping column I is clamped with the clamping interface I; one side of the adjusting block II is provided with a plug block, the other side is provided with a spring groove, and the adjusting block II is provided with a clamping column II; the adjusting blocks I and II and the cover plate each have two pieces, the slots of the sliding grooves II of the two adjusting blocks I are oppositely arranged, the sliding rod is oppositely arranged with the sliding groove I, the two adjusting blocks II are arranged in the two sliding grooves II, the spring grooves are oppositely arranged, the plug blocks are respectively attached to the sliding grooves II on both sides, and springs are arranged in the sliding grooves I and the spring grooves; the cover plate is arranged on the front and back sides of the adjusting blocks I and II, the cover plate is provided with a clamping column groove and a screw hole; one end of the strap rack I is connected with the strap, the other end of the strap rack I is provided with a plug piece, the plug piece is provided with a clamping groove, a plurality of clamping interfaces II are arranged in the clamping groove, the strap rack II is provided with a power arm groove, the adjusting assembly is sleeved on the power arm through the power arm groove, the adjusting blocks I and II are movably fixed on the strap rack II through the sliding rod, the screw and the sliding groove III, the clamping column II passes through the clamping column grooves of the two cover plates and is clamped with the clamping interfaces II.

[0006] Further, the two sides of the assisting arm are provided with clamping interfaces I, and the outer end of the sliding groove I is provided with a clamping column I.

[0007] Further, the assisting arm is provided with a clamping groove I, the inner wall of the two sides of the clamping groove I is provided with a clamping interface I, and the inner end of the sliding groove I is provided with a clamping column I.

[0008] Further, the sliding groove II is trapezoidal, the notch is a long side of the trapezoid, and the plug is triangular.

[0009] Further, the side of the adjusting block I away from the sliding rod is further provided with a handle.

[0010] Further, the assisting arm of the thigh is provided with two adjusting assemblies, and the assisting arm of the lower leg is provided with one adjusting assembly.

[0011] Further, the limiting assembly comprises a limiting sheet and a limiting column, and the limiting column is arranged at two ends of the limiting sheet.

[0012] Further, the limiting assembly is made of elastic material.

[0013] Compared with the prior art, the adjusting assembly can adjust the position of the assisting arm and the tightness of the strap, so that the knee joint movement assisting device can adapt to the legs of various people, ensure that the knee joint movement assisting device is closely attached to the legs, the limiting assembly is made of elastic material, the rotation angle of the assisting arm is limited, and the limiting assembly can also play a buffering role, and the wearing comfort and assisting precision of the assisting device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings: Figure 1 It is a schematic view of the overall structure of the knee joint movement assisting device described in the present application; Figure 2 It is an exploded structural schematic view of the adjusting assembly described in the present application; Figure 3 It is a structural schematic view of the adjusting block I and the adjusting block II described in the present application; Figure 4 It is a structural schematic view of the strap holder I and the strap holder II described in the present application; Figure 5 It is a structural schematic view of the limiting assembly described in the present application; Figure 6 It is a structural schematic view of the assisting arm and the adjusting assembly described in the second embodiment of the present application.

[0015] 1, thigh assist arm; 2, calf assist arm; 3, clamping port I; 4, adjusting assembly; 5, adjusting block I; 6, adjusting block II; 7, clamping column I; 8, clamping column II; 9, cover plate; 10, cable tie rack I; 11, cable tie rack II; 12, cable tie; 13, sliding groove I; 14, sliding groove II; 15, sliding groove III; 16, sliding rod; 17, handle; 18, plug-in block; 19, spring groove; 20, clamping column groove; 21, screw hole; 22, plug-in piece; 23, clamping groove; 24, clamping port II; 25, force arm groove; 26, screw; 27, limiting piece; 28, limiting column; 29, clamping groove I. DETAILED DESCRIPTION

[0016] Hereinafter, the present application will be described in detail with reference to the accompanying drawings and examples. It should be noted that the examples in the present application and the features in the examples can be combined with each other without conflict.

[0017] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. EMBODIMENT

[0018] Please refer to Figure 1 The knee joint movement assist device provided by the embodiment includes assist arms, adjusting assemblies 4, and limiting assemblies. The assist arms are two, which are a thigh assist arm 1 and a calf assist arm 2. The two assist arms are movably connected together at one end. The assist arms are provided with a plurality of clamping ports I 3 on the two sides. The clamping ports I 3 are uniformly distributed. The adjusting assemblies 4 are sleeved on the assist arms. The thigh assist arm 1 is provided with two adjusting assemblies 4. The calf assist arm 2 is provided with one adjusting assembly 4.

[0019] Refer to Figures 2-4Continuing to illustrate, the adjusting assembly 4 comprises adjusting block I 5, adjusting block II 6, clamping column I 7, clamping column II 8, cover plate 9, cable tie rack I 10, cable tie rack II 11, cable tie 12, the adjusting block I 5 is provided with sliding groove I 13, sliding groove II 14, sliding groove III 15, sliding rod 16, handle 17, the sliding groove I 13, sliding groove II 14, sliding rod 16 are provided at the same side, handle 17 is provided at the other side, the outer end of sliding groove I 13 is provided with clamping column I 7, sliding groove II 14 is trapezoidal, and the slot is trapezoidal long side; one side of adjusting block II 6 is triangular plug block 18, and the other side is provided with spring groove 19, and adjusting block II 6 is provided with clamping column II 8; the cover plate 9 is provided with clamping column groove 20 and screw hole 21; the adjusting block I 5, the adjusting block II 6 and the cover plate 9 each have two, the slots of the sliding groove II 14 of the two adjusting blocks I 5 are oppositely arranged, the sliding rod 16 is oppositely arranged with the sliding groove I 13, the two adjusting blocks II 6 are arranged in the middle of the two sliding grooves II 14, the spring grooves 19 of the adjusting blocks II 6 are oppositely arranged, the plug blocks 18 are respectively attached to the sliding grooves II 14 of the two adjusting blocks I 5 on both sides, and springs are arranged in the sliding groove I 13 and the spring groove 19; one end of the cable tie rack I 10 and the cable tie rack II 11 is connected with the cable tie 12, the other end of the cable tie rack I 10 is provided with an insertion piece 22, the insertion piece 22 is provided with a clamping groove 23, a plurality of clamping interfaces II 24 are uniformly distributed on the clamping groove 23, the cable tie rack II 11 is provided with a force arm groove 25, and the adjusting assembly 4 is sleeved on the power arm through the force arm groove 25; the cover plate 9 is arranged on the front and rear sides of the adjusting block I 5 and II, the screw 26 passes through the screw hole 21, the sliding groove III 15, and the adjusting block I 5 and II is movably fixed on the cable tie rack II 11, the clamping column II 8 passes through the clamping column groove 20 of the two cover plates 9 and is clamped with the clamping interface II 24, and when the spring is in a natural state, the clamping column I 7 is embedded in the clamping interface I 3, and the clamping column II 8 is embedded in the clamping interface II 24.

[0020] Referring to Figure 5 Continuing to illustrate, the limiting assembly is arranged on the thigh power arm 1, and the limiting assembly comprises limiting sheet 27 and limiting column 28, the limiting column 28 is arranged at both ends of the limiting sheet 27, when the two power arms rotate relative to each other, the limiting assembly limits the rotation angle of the calf power arm 2, and the limiting assembly is made of elastic material.

[0021] The knee joint movement assistor provided by the embodiment, when in use, the handle 17 of the adjusting block I5 is pressed to move the two adjusting blocks I5 towards each other, the sliding rod 16 moves towards the sliding groove I13, the spring is extruded, the clamping column I7 is separated from the clamping interface I3, meanwhile, the sliding groove II 14 extrudes the adjusting block II 6, the two adjusting blocks II 6 move towards each other, the spring is extruded, the clamping column II 8 is separated from the clamping interface II 24, at this time, the adjusting assembly 4 can freely move on the assisting arm, the insertion piece 22 can freely move relative to the adjusting block I5, the handle 17 is released, the adjusting block I5 and the adjusting block II 6 are reset under the action of the spring, the user can adjust the wearing position and the tightness of the strap 12 through the adjusting assembly 4 according to actual needs, the limiting assembly is made of elastic material, which can limit the rotation angle of the assisting arm and also play a buffering role. Embodiment

[0022] Please refer to Figure 6 The knee joint movement assistor provided by the embodiment, compared with the technical solution of the embodiment 1, can be improved as follows: the assisting arm is provided with the clamping groove I29, the inner walls on the two sides of the clamping groove I29 are provided with a plurality of clamping interfaces I3, and the inner end of the sliding groove I13 is provided with the clamping column I7.

[0023] The above only describes the preferred embodiments of the present application and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Knee joint motion assist device characterized by: The utility model provides a kind of adjustable crutch, including boost arm, adjusting assembly (4), limiting component, the boost arm includes thigh boost arm (1), shank boost arm (2), two boost arms one end is movably connected with each other, the adjusting assembly (4) is sleeved in boost arm, adjusting assembly (4) is used to adjust its position on boost arm and the tightness of cable tie (12), the limiting component is equipped in thigh boost arm (1), and limiting component is used to limit the rotation angle of boost arm.

2. The knee motion assist device according to claim 1, characterized by: The boost arm is equipped with several clamping interfaces I (3), and the adjusting assembly (4) includes adjusting block I (5), adjusting block II (6), cover plate (9), cable tie rack I (10), cable tie rack II (11) and cable tie (12). The adjusting block I (5) is equipped with sliding slot I (13), sliding slot II (14), sliding slot III (15) and sliding rod (16). The sliding slot I (13) is equipped with clamping column I (7) at one end, and the clamping column I (7) is clamped with the clamping interface I (3). The adjusting block II (6) is equipped with spring slot (19) on the other side, and the adjusting block II (6) is equipped with clamping column II (8). The adjusting block I (5) and the adjusting block II (6) are each equipped with two cover plates (9). The slot openings of the sliding slot II (14) of the two adjusting blocks I (5) are oppositely arranged. The sliding rod (16) is oppositely arranged with the sliding slot I (13). The two adjusting blocks II (6) are arranged in the two sliding slot II (14). The spring slot (19) is oppositely arranged. The insertion block (18) is respectively attached to the sliding slot II (14) on both sides. The sliding slot I (13) and the spring slot (19) are each equipped with a spring. The cover plate (9) is arranged on the front and back sides of the adjusting block I (5) and the adjusting block II. The cover plate (9) is equipped with clamping column slot (20) and screw hole (21). The cable tie rack I (10) and the cable tie rack II (11) are connected with the cable tie (12) at one end. The other end of the cable tie rack I (10) is equipped with an insertion piece (22). The insertion piece (22) is equipped with a clamping slot (23). The clamping slot (23) is equipped with several clamping interfaces II (24). The cable tie rack II (11) is equipped with arm slot (25). The adjusting assembly (4) is sleeved on the boost arm through the arm slot (25). The screw (26) passes through the screw hole (21) and the sliding slot III (15) to movably fix the adjusting block I (5) and the adjusting block II on the cable tie rack II (11). The clamping column II (8) passes through the clamping column slot (20) of the two cover plates (9) and is clamped with the clamping interface II (24).

3. The knee motion assist device according to claim 2, characterized by: The boost arm is equipped with clamping interfaces I (3) on both sides. The outer end of the sliding slot I (13) is equipped with clamping column I (7).

4. The knee motion assist device according to claim 2, characterized by: The boost arm is equipped with clamping slot I (29). The inner walls on both sides of the clamping slot I (29) are equipped with clamping interfaces I (3). The inner end of the sliding slot I (13) is equipped with clamping column I (7).

5. The knee motion assist device according to claim 3 or 4, characterized by: The sliding slot II (14) is trapezoidal. The slot opening is trapezoidal long side. The insertion block (18) is triangular.

6. The knee motion assist device according to claim 3 or 4, characterized by: The adjusting block I (5) is further equipped with a handle (17) on the side away from the sliding rod (16).

7. The knee motion assist device according to claim 1 or 2, characterized by: The thigh boost arm (1) is equipped with two adjusting assemblies (4). The shank boost arm (2) is equipped with one adjusting assembly (4).

8. The knee motion assist device according to claim 1, characterized by: The limiting component includes limiting sheet (27) and limiting column (28). The limiting column (28) is separately arranged at both ends of the limiting sheet (27).

9. The knee motion assist device according to claim 8, characterized by: The limiting assembly is made of elastic material. The limiting assembly is made of elastic material.

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