Leg rehabilitation equipment

Abstract

The present invention provides a leg rehabilitation device, which belongs to the technical field of exercise equipment. The leg rehabilitation device includes a wheelchair, a long frame is provided at the bottom of the wheelchair, a first platform is provided on the first side of the top of the long frame, an adjustment mechanism is provided on the top of the first platform, a training mechanism is provided on the top of the adjustment mechanism, and the training mechanism includes: a second platform, a first turning plate, a second sleeve shaft and a third sleeve shaft, and first shaft platforms are provided on both sides of the top of the second platform. The present invention sets a first slotted semi-ring, combined with a second slotted semi-ring, under the action of a first bevel gear, the left and right pedals can move in a semicircle, and the movement process is uninterrupted. During the movement of the two pedals, half of them are not subject to the limiting effect, so after the two pedals rotate half a circle respectively, they can immediately continue to apply force to make the opposite movement, without having to wait until they rotate half a circle before applying force to train the body's muscle tissue.

Description

Technical Field

[0001] The invention relates to the technical field of exercise equipment, in particular to a leg rehabilitation device. Background Art

[0002] Leg rehabilitation equipment is a type of device used to help restore leg function after injury or surgery, enhance leg muscle strength, and improve joint mobility. It helps prevent joint adhesion and stiffness after knee surgery. It can accurately control the angle, speed and time of joint movement, and perform regular exercises according to the set program. Using lower limb muscle strength trainers can gradually increase the load on the muscles, stimulate muscle fibers, and cause them to grow again and thicken.

[0003] In the actual exercise and rehabilitation process, the adjustment parts of the existing training equipment are dispersedly distributed. If the driving parts are placed around the hands of the rehabilitation patient using related face and heel equipment, a large force is required to set the adjustment parts, and these connecting components will hinder the patient's normal training activities and cause more inconvenience, which is not conducive to the patient using a specific limb part for unified adjustment. In addition, the common bicycle-style omnidirectional rotating pedaling training equipment has too large a range of motion for seated patients, especially in the retracted half circle where no force is applied, resulting in a certain amount of waste. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a leg rehabilitation device that overcomes the above technical problems or at least partially solves the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A leg rehabilitation device comprises a wheelchair, wherein a long frame is provided at the bottom of the wheelchair, a first platform is provided at a first side of the top of the long frame, an adjustment mechanism is provided at the top of the first platform, a training mechanism is provided at the top of the adjustment mechanism, and the training mechanism comprises:

[0007] A second platform, first shaft blocks are provided on both sides of the top of the second platform, a first rotating shaft is movably provided on the first shaft block on one side of the top of the second platform, a first sleeve shaft is movably provided on the first shaft block on the other side of the top of the second platform, a first sleeve shaft is provided on one end of the shaft body of the first rotating shaft, and a first slotted half ring is provided on the first sleeve shaft;

[0008] A first turning plate, the first turning plate is arranged on the side of the first pillow block on one side of the top of the second platform, and a first bevel gear is arranged on the body of the first turning plate via a movable shaft;

[0009] A second sleeve shaft, the second sleeve shaft is movably arranged on the first shaft platform on the other side of the top of the second table through a bearing, a second slotted half ring is arranged at one end of the second sleeve shaft, the second slotted half ring is meshedly connected with the first bevel gear, the first bevel gear is meshedly connected with the first slotted half ring, a third turning plate is arranged at one side of the second slotted half ring, and a second spring convex is arranged at the end of the third turning plate;

[0010] The third sleeve shaft is arranged on the outer ring of the second sleeve shaft, and the two ends of the third sleeve shaft are respectively provided with a counterweight ring and an inner open gear ring, and the middle part of the third sleeve shaft is provided with a first gear.

[0011] By setting the first slotted half ring in combination with the second slotted half ring, under the action of the first bevel gear, the left and right pedals can move in a semicircle, and the movement process is uninterrupted. During the movement of the two pedals, half of them are not subject to the limiting effect, so after the two pedals rotate half a circle respectively, force can be immediately applied to perform opposite movements, and there is no need to wait until half a circle is rotated before applying force to train the body's muscle tissue.

[0012] In one embodiment of the present invention, one end of the first sleeve shaft is provided with a left straight groove plate located on one side of the top of the first pillow block, and the side of the second sleeve shaft is provided with a right straight groove plate located on the other side of the top of the second pillow block, and the top ends of the left straight groove plate and the right straight groove plate are both provided with pedals through movable shafts.

[0013] In one embodiment of the present invention, a structural ring is provided on one side of the first rotating shaft, a second turning plate is provided on one side of the ring body of the structural ring, a first spring bulge is provided on the end of the second turning plate, and the teeth of the inner toothed ring are movably engaged with the tip ends of the first spring bulge and the second spring bulge.

[0014] In one embodiment of the present invention, the end of the first rotating shaft is movably sleeved on the inner ring of the second sleeve shaft, the structural ring is movably overlapped with the second sleeve shaft, and the side surface of the counterweight ring is shorter than the side edge of the second sleeve shaft.

[0015] In one embodiment of the present invention, the adjusting mechanism includes a mounting groove, a screw rod is provided on the groove body of the mounting groove through a bearing, a threaded block is threadedly connected to the screw rod, through grooves are provided on both sides of the mounting groove, a first straight slot plate is provided on both sides of the threaded block through a movable shaft, an extension shaft is provided at the end of the screw rod, and a second bevel gear is provided at the end of the extension shaft.

[0016] In one embodiment of the present invention, second shaft platforms are provided on both sides of the top of the first platform, and a second straight groove plate is provided on the second shaft platform through a movable shaft, one end of the second straight groove plate is connected to the end of the first straight groove plate through a movable shaft, and the second straight groove plate is connected to the bottom of the second platform.

[0017] In one embodiment of the present invention, a main rotating shaft is provided between the rotating shafts of the wheels of the wheelchair, and a first pulley is provided on the main rotating shaft.

[0018] In one embodiment of the present invention, a linkage mechanism is provided on one side of the top of the first platform, and the linkage mechanism includes a first driven shaft, a second driven shaft is provided on the side of the first driven shaft, and the opposite end portions of the first driven shaft and the second driven shaft are movably connected to the second pillow block through bearings respectively.

[0019] In one embodiment of the present invention, a third pillow block located at the top of the second table plate is provided on one side of the first driven shaft, a fourth pillow block located at the top of the second table plate is provided on one side of the second driven shaft, a first sliding lock buckle is provided on the side of the third pillow block through a movable shaft, a third pulley is provided on the side of the first sliding lock buckle away from the third pillow block, a third bevel gear is coaxially fixed on the first driven shaft, a fourth bevel gear meshing with the third bevel gear is provided on one side of the fourth pillow block through a movable shaft, a second sliding lock buckle is provided on one side of the fourth pillow block through a connecting piece, an end of the second sliding lock buckle away from the fourth pillow block is connected to the second driven shaft, a second pulley is provided on one side of the first sliding lock buckle, a fourth pulley is provided on the other side of the first sliding lock buckle, fifth pillow blocks are provided on both sides of the midline of the top of the second table plate, a fifth pulley and a sixth pulley are provided at both ends of the rotating shaft on the fifth pillow block, and a second gear meshing with the first gear is provided at the end of the rotating shaft of the fifth pillow block.

[0020] By setting a linkage mechanism, both the first sliding lock and the second sliding lock can realize the establishment and release of the rotational connection relationship. Especially in the leg training operation, a linkage mechanism is set up, and the linkage mechanism can be connected with the training mechanism, the adjustment mechanism and the moving part by transmission, and only the ankle switch is needed, and the training rehabilitation pedaling action is used to drive the linkage mechanism. The patient does not need to use his hands or other additional operation methods to control the adjustment. During the leg rehabilitation training, the patient's hands can be naturally placed on both sides of the body or hold the armrests to maintain balance, which reduces the complexity of the operation. The linkage mechanism connects the training mechanism, the adjustment mechanism and the moving part by transmission, so that the entire training process forms an organic whole. When the patient performs the pedaling action, he is not only performing basic leg training, but also can synchronously drive the adjustment mechanism to adjust the training intensity, angle and other parameters.

[0021] In an embodiment of the present invention, the first sliding lock buckle and the second sliding lock buckle have the same structure, and the second sliding lock buckle comprises:

[0022] A first side plate, wherein a first side ring is disposed on one side of the first side plate, and hexagonal grooves are disposed on opposite sides of the first side ring;

[0023] A symmetrical middle ring, wherein the ring body of the symmetrical middle ring is provided with hexagonal blocks arranged back to back through a structural member, and the ring body of the symmetrical middle ring is provided with a toggle ring;

[0024] The second side plate has a third side ring and a second side ring on its side, and the third side ring and the second side ring are both provided with a hexagonal groove.

[0025] The leg rehabilitation device provided by the present invention has the following beneficial effects:

[0026] 1. By setting the first slotted half ring and combining it with the second slotted half ring, under the action of the first bevel gear, the left and right pedals can move in a semicircle, and the movement process is uninterrupted. During the movement of the two pedals, half of them are not limited, so after the two pedals rotate half a circle respectively, you can immediately continue to apply force to make opposite movements, without having to wait until they rotate half a circle before applying force to train the body's muscle tissue.

[0027] 2. By setting up an adjustment mechanism and combining it with a linkage mechanism, when the angle of the training mechanism needs to be adjusted, it is only necessary to use the ankle or other parts to turn the dial ring, so that the symmetrical middle ring with the hexagonal block can be connected to the hexagonal groove of the first side ring. That is, the first side disk that originally did not rotate with the second side disk also starts to rotate. This process is regarded as the establishment of a rotational connection relationship, and then the angle of the second platform is adjusted under the action of the third bevel gear. This process only requires a slight movement of the ankle to make the adjustment, which is very simple, convenient and efficient.

[0028] 3. By setting up a linkage mechanism, both the first sliding lock and the second sliding lock can realize the establishment and release of the rotational connection relationship. Especially in the leg training operation, a linkage mechanism is set up, which can realize the transmission connection between the training mechanism, the adjustment mechanism and the moving part, and only needs to use the ankle switch, and borrow the pedaling action of training rehabilitation to drive it. Only the ankle switch and the pedaling action are used to drive the linkage mechanism, and the patient does not need to use hands or other additional operation methods to control the adjustment. During the leg rehabilitation training process, the patient's hands can be naturally placed on both sides of the body or hold the armrests to maintain balance, which reduces the complexity of the operation. The linkage mechanism transmits and connects the training mechanism, the adjustment mechanism and the moving part, so that the entire training process forms an organic whole. When the patient performs the pedaling action, he is not only performing basic leg training, but also can synchronously drive the adjustment mechanism to adjust the training intensity, angle and other parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a stereogram provided by an embodiment of the present invention;

[0031] Figure 2 A front perspective view of an embodiment of the present invention is provided;

[0032] Figure 3 A side perspective view of an embodiment of the present invention is provided;

[0033] Figure 4 A schematic diagram of the structure of the adjustment mechanism provided in an embodiment of the present invention;

[0034] Figure 5 A perspective view of an adjustment mechanism provided for an embodiment of the present invention;

[0035] Figure 6 A schematic diagram of the training mechanism structure provided by an embodiment of the present invention;

[0036] Figure 7 A perspective view of a training mechanism provided for an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of the linkage mechanism structure provided in an embodiment of the present invention;

[0038] Fig. 9 A schematic diagram of a second sliding lock structure provided in an embodiment of the present invention;

[0039] Fig.10 A second perspective view of a sliding lock provided for an embodiment of the present invention.

[0040] In the figure: 1, wheelchair; 101, main shaft; 102, first pulley; 103, long frame; 104, first platform; 2, training mechanism; 201, second platform; 202, first shaft platform; 2021, first turning plate; 2022, first bevel gear; 203, left straight groove plate; 2031, right straight groove plate; 2032, pedal; 204, first shaft; 205, first sleeve shaft; 2051, first slotted semi-ring ; 2052, structural ring; 2053, second turning plate; 2054, first spring convex; 206, second sleeve shaft; 2061, second slotted half ring; 2062, third turning plate; 2063, second spring convex; 207, third sleeve shaft; 2071, counterweight ring; 2072, inner gear ring; 2073, first gear; 3, adjustment mechanism; 301, second pillow block; 302, mounting groove; 3021, through groove; 3 03, screw rod; 3031, second bevel gear; 3032, extension shaft; 304, threaded block; 305, first straight slot plate; 306, second straight slot plate; 4, linkage mechanism; 401, first driven shaft; 402, second driven shaft; 403, third shaft platform; 404, fourth shaft platform; 405, first sliding lock; 4051, third bevel gear; 406, second sliding lock; 4061, first side plate; 4062 , first side ring; 40621, hexagonal groove; 4063, symmetrical middle ring; 40631, hexagonal block; 4064, second side ring; 4065, third side ring; 4066, second side plate; 4067, toggle ring; 407, second pulley; 408, third pulley; 4081, fourth pulley; 409, fifth pillow block; 4091, second gear; 410, fifth pulley; 411, sixth pulley. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Example

[0043] See also Figure 1-10The present invention provides a technical solution: a leg rehabilitation device, including a wheelchair 1, a long frame 103 is provided at the bottom of the wheelchair 1, a first platform 104 is provided at the first side of the top of the long frame 103, an adjustment mechanism 3 is provided at the top of the first platform 104, a training mechanism 2 is provided at the top of the adjustment mechanism 3, the training mechanism 2 includes a second platform 201, a first turning plate 2021, a second sleeve shaft 206 and a third sleeve shaft 207, first shaft blocks 202 are provided on both sides of the top of the second platform 201, a first rotating shaft 204 is movably provided on the first shaft block 202 on one side of the top of the second platform 201, a first sleeve shaft 205 is movably provided on the first shaft block 202 on the other side of the top of the second platform 201, and a first end shaft body of the first rotating shaft 204 is provided with a first The sleeve shaft 205 is provided with a first slotted half ring 2051 on the first sleeve shaft 205, the first turning plate 2021 is provided on the side of the first pillow block 202 on one side of the top of the second platform 201, the first bevel gear 2022 is provided on the body of the first turning plate 2021 through a movable shaft, the second sleeve shaft 206 is movably provided on the first pillow block 202 on the other side of the top of the second platform 201 through a bearing, a second slotted half ring 2061 is provided at one end of the second sleeve shaft 206, the second slotted half ring 2061 is meshedly connected with the first bevel gear 2022, the first bevel gear 2022 is meshedly connected with the first slotted half ring 2051, a third turning plate 2062 is provided on one side of the second slotted half ring 2061, and a second spring cam is provided at the end of the third turning plate 2062 2063, the third sleeve shaft 207 is arranged on the outer ring of the second sleeve shaft 206, and the two ends of the third sleeve shaft 207 are respectively provided with a counterweight ring 2071 and an inner gear ring 2072, and the middle part of the third sleeve shaft 207 is provided with a first gear 2073. When in use, a person sits on the wheelchair 1 and puts both feet on the two pedals 2032 to step on. During the rotation of the first rotating shaft 204, the first slotted half ring 2051 is driven to rotate, and the first bevel gear 2022 rotates accordingly. After the first bevel gear 2022 rotates half a circle, the first slotted half ring 2051 contacts and meshes with the first bevel gear 2022. At this time, the second slotted half ring 2061 establishes a meshing relationship with the first bevel gear 2022, and the second bevel gear 3031 is engaged with the right bevel gear 2022 under the action of the second sleeve. During this process, the first spring protrusion 2054 and the second spring protrusion rotate in the same direction to drive the inner toothed ring 2072 to rotate, while the first slotted half ring 2051 and the second slotted half ring 2061 do not drive the inner toothed ring 2072 when moving in the opposite direction, so the counterweight ring 2071 and the first gear 2073 will keep rotating. When it is necessary to adjust the angle of the adjustment mechanism 3, it is only necessary to use the ankle or other parts to toggle the toggle ring 4067 to connect the symmetrical middle ring 4063 with the hexagonal block 40631 with the hexagonal groove 40621 of the first side ring 4062, that is, the first side disk 4061, which did not rotate with the second side disk 4066, also starts to rotate.This process is regarded as the establishment of a rotation connection relationship, and this process is regarded as the establishment of a transmission connection relationship between the first sliding lock buckle 405 and the second sliding lock buckle 406. The reverse setting is regarded as the release of the connection relationship. Use the right ankle to set the second sliding lock buckle 406, and the second bevel gear 3031 that was originally not rotating begins to rotate through the second gear 4091 and the fifth pulley 410 connected to the fourth pulley 4081, that is, the threaded shaft rotates. Under the action of the thread principle, the thread block 304 slides, and then the angle of the first straight groove plate 305 and the second straight groove plate 306 changes, which is regarded as the angle of the second platform 201 being adjusted. The left ankle drives the toggle ring 4067, and the sixth pulley 4 11 and the second pulley 407, the first pulley 102 is driven to rotate by the transmission of the belt or rope, and then the wheel of the wheelchair 1 can be driven, and the position of the entire device can be appropriately adjusted to a certain extent. By setting the first slotted half ring 2051 and combining the second slotted half ring 2061, under the action of the first bevel gear 2022, the left and right pedals 2032 can move in a semicircular manner, and the activity process is uninterrupted. During the movement of the two pedals 2032, half of them are not subject to the limiting effect, so after the two pedals 2032 rotate half a circle respectively, they can immediately continue to apply force to make the opposite movement, without waiting until they rotate half a circle before applying force to train the body's muscle tissue.

[0044] See also Figure 1-10 , a left straight groove plate 203 is provided at one end of the first sleeve shaft 205 and is located on one side of the top of the first shaft platform 202, and a right straight groove plate 2031 is provided on the side of the second sleeve shaft 206 and is located on the other side of the top of the second shaft platform 301. The tops of the left straight groove plate 203 and the right straight groove plate 2031 are both provided with pedals 2032 through movable shafts. A person sits on the wheelchair 1 and puts both feet on the two pedals 2032 to step on them. During the rotation of the first rotating shaft 204, the first slotted semi-ring 2051 is driven to rotate, and at this time, the first bevel gear 2022 rotates accordingly. After the first bevel gear 2022 rotates half a circle, the first slotted semi-ring 2051 rotates. Ring 2051 is in contact and meshing relationship with the first bevel gear 2022. At this time, the second slotted half ring 2061 establishes a meshing relationship with the first bevel gear 2022. The second bevel gear 3031 is connected to the pedal 2032 on the right side under the action of the second sleeve. During this process, when the first spring cam 2054 and the second spring cam rotate in the same direction, the inner gear ring 2072 will be driven to rotate, and the first slotted half ring 2051 and the second slotted half ring 2061 will not drive the inner gear ring 2072 when moving in the opposite direction, so the counterweight ring 2071 and the first gear 2073 will keep rotating.

[0045] See also Figure 1-10A structural ring 2052 is provided on one side of the first rotating shaft 204, a second turning plate 2053 is provided on one side of the ring body of the structural ring 2052, a first spring protrusion 2054 is provided at the end of the second turning plate 2053, and the teeth of the inner open tooth ring 2072 are movably engaged with the tip of the first spring protrusion 2054 and the second spring protrusion 2063.

[0046] See also Figure 1-10 The end of the first rotating shaft 204 is movably sleeved on the inner ring of the second sleeve shaft 206 , the structural ring 2052 is movably overlapped with the second sleeve shaft 206 , and the side surface of the counterweight ring 2071 is shorter than the side edge of the second sleeve shaft 206 .

[0047] See also Figure 1-10 The adjusting mechanism 3 includes a mounting groove 302, a screw rod 303 is provided on the groove body of the mounting groove 302 through a bearing, a threaded block 304 is threadedly connected to the screw rod 303, through grooves 3021 are provided on both sides of the mounting groove 302, and a first straight slot plate 305 is provided on both sides of the threaded block 304 through a movable shaft, an extension shaft 3032 is provided at the end of the screw rod 303, and a second bevel gear 3031 is provided at the end of the extension shaft 3032. By setting the adjusting mechanism 3 and combining the linkage mechanism 4, when it is necessary to adjust the angle of the training mechanism 2, it is only necessary to use the ankle or other parts to toggle the toggle ring 4067 to adjust the angle of the training mechanism 2. 1 is connected with the hexagonal groove 40621 of the first side ring 4062, that is, the first side disk 4061 which originally did not rotate with the second side disk 4066 also starts to rotate. This process is regarded as the establishment of a rotation connection relationship. A third bevel gear 4051 is coaxially fixed on the first driven shaft 401, and a second bevel gear 3031 meshing with the third bevel gear 4051 is provided on one side of the fourth shaft platform 404 through a movable shaft. Then, under the action of the third bevel gear 4051, the angle of the second platform 201 is adjusted. This process only requires slightly moving the ankle to make the adjustment, which is very simple, convenient and efficient.

[0048] See also Figure 1-10 A second shaft platform 301 is provided on both sides of the top of the first platform 104, and a second straight groove plate 306 is provided on the second shaft platform 301 through a movable axis. One end of the second straight groove plate 306 is connected to the end of the first straight groove plate 305 through a movable axis, and the second straight groove plate 306 is connected to the bottom of the second platform 201.

[0049] See also Figure 1-10 A main rotating shaft 101 is provided between the rotating shafts of the wheels of the wheelchair 1 , and a first pulley 102 is provided on the main rotating shaft 101 .

[0050] See also Figure 1-10A linkage mechanism 4 is provided on one side of the top of the first platform 104, and the linkage mechanism 4 includes a first driven shaft 401, and a second driven shaft 402 is provided on the side of the first driven shaft 401. The opposite ends of the first driven shaft 401 and the second driven shaft 402 are movably connected to the second shaft platform 301 through bearings respectively. By setting the linkage mechanism 4, the first sliding lock 405 and the second sliding lock 406 can both realize the establishment and release of the rotation connection relationship. Especially in the leg training operation, a linkage mechanism 4 is set, and the linkage mechanism 4 can transmit and connect the training mechanism 2 with the adjustment mechanism 3 and the moving part, and only needs to use an ankle switch, and use the pedaling action of training and rehabilitation to drive it. Only the ankle switch and the pedaling action are used to drive the linkage mechanism 4, and the patient does not need to control the adjustment by hand or other additional operation methods. During the leg rehabilitation training, the patient's hands can be naturally placed on both sides of the body or hold the handrails to maintain balance, which reduces the complexity of the operation. The linkage mechanism 4 transmits and connects the training mechanism 2, the adjustment mechanism 3 and the moving part, so that the entire training process forms an organic whole. When the patient performs the pedaling action, he is not only performing basic leg training, but also can synchronously drive the adjustment mechanism 3 to adjust the training intensity, angle and other parameters.

[0051] See also Figure 1-10 A third shaft block 403 located at the top of the second platform 201 is provided on one side of the first driven shaft 401, a fourth shaft block 404 located at the top of the second platform 201 is provided on one side of the second driven shaft 402, a first sliding lock 405 is provided on the side of the third shaft block 403 through a movable shaft, a third pulley 408 is provided on the side of the first sliding lock 405 away from the third shaft block 403, a second bevel gear 3031 meshing with a third bevel gear 4051 is provided on one side of the fourth shaft block 404 through a movable shaft, and a second sliding lock 405 is provided on one side of the fourth shaft block 404 through a connecting piece. A dynamic lock buckle 406, one end of the second sliding lock buckle 406 away from the fourth shaft platform 404 is connected to the second driven shaft 402, a second pulley 407 is provided on one side of the first sliding lock buckle 405, and a fourth pulley 4081 is provided on the other side of the first sliding lock buckle 405, and a fifth shaft platform 409 is provided on both sides of the top center line of the second platform 201, and a fifth pulley 410 and a sixth pulley 411 are respectively provided at both ends of the split rotating shaft on the fifth shaft platform 409, and a second gear 4091 meshingly connected to the first gear 2073 is provided at the end of the rotating shaft of the fifth shaft platform 409.

[0052] See also Figure 1-10The first sliding lock buckle 405 and the second sliding lock buckle 406 have the same structure. The second sliding lock buckle 406 includes: a first side plate 4061, a symmetrical middle ring 4063, and a second side plate 4066. A first side ring 4062 is provided on one side of the first side plate 4061, and a hexagonal groove 40621 is provided on the opposite sides of the first side ring 4062. A hexagonal block 40631 arranged back to back is provided in the ring body of the symmetrical middle ring 4063 through a structural member. A toggle ring 4067 is provided on the ring body of the symmetrical middle ring 4063. A third side ring 4065 and a second side ring 4066 are provided on the side of the second side plate 4066. 064, the third side ring 4065 and the second side ring 4064 are both provided with a hexagonal groove 40621. By using the ankle or other parts to toggle the toggle ring 4067, the symmetrical middle ring 4063 with the hexagonal block 40631 can be connected to the hexagonal groove 40621 of the first side ring 4062, that is, the first side plate 4061 that originally did not rotate with the second side plate 4066 also starts to rotate. This process is regarded as the establishment of a rotation connection relationship, and this process is regarded as the establishment of a transmission connection relationship between the first sliding lock buckle 405 and the second sliding lock buckle 406. The reverse setting is regarded as the release of the connection relationship.

[0053] Specifically, the working process or working principle of the leg rehabilitation device is as follows: when in use, a person sits on the wheelchair 1, puts both feet on the two pedals 2032 to step on, and during the rotation of the first rotating shaft 204, the first slotted half ring 2051 is driven to rotate, and at this time, the first bevel gear 2022 rotates accordingly. After the first bevel gear 2022 rotates half a circle, the first slotted half ring 2051 contacts and meshes with the first bevel gear 2022. At this time, the second slotted half ring 2061 establishes a meshing relationship with the first bevel gear 2022, and the second bevel gear 3031 is in the second The first spring protrusion 2054 and the second spring protrusion 2061 rotate in the same direction to drive the inner gear ring 2072 to rotate, while the first slotted half ring 2051 and the second slotted half ring 2061 do not drive the inner gear ring 2072 when moving in the reverse direction, so the counterweight ring 2071 and the first gear 2073 will keep rotating. When the angle of the adjustment mechanism 3 needs to be adjusted, it is only necessary to use the ankle or other parts to toggle the toggle ring 4067 to adjust the angle of the adjustment mechanism 3. The symmetrical middle ring 4063 of 1 is connected with the hexagonal groove 40621 of the first side ring 4062, that is, the first side disc 4061 that originally did not rotate with the second side disc 4066 also starts to rotate. This process is regarded as the establishment of a rotation connection relationship. This process is regarded as the establishment of a transmission connection relationship between the first sliding lock buckle 405 and the second sliding lock buckle 406. The reverse setting is regarded as the release of the connection relationship. The second sliding lock buckle 406 is set using the right ankle. The second bevel gear 3031 that was originally not rotating starts to communicate with the second gear 4091 and the fifth pulley 410. The fourth pulley 4081 rotates, which makes the threaded shaft rotate. Under the action of the thread principle, the thread block 304 slides, and then the angles of the first straight groove plate 305 and the second straight groove plate 306 change, which is regarded as the angle of the second platform 201 being adjusted. The left ankle drives the toggle ring 4067, which can drive the first pulley 102 to rotate by the transmission of a belt or rope under the action of the sixth pulley 411 and the second pulley 407, and then the rotating wheel of the wheelchair 1 can be driven, and the overall position of the device can be appropriately adjusted to a certain extent.

[0054] 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 leg rehabilitation device, comprising a wheelchair (1), characterized in that: The bottom of the wheelchair (1) is provided with a long frame (103), a first platform (104) is provided on a first side of the top of the long frame (103), an adjustment mechanism (3) is provided on the top of the first platform (104), a training mechanism (2) is provided on the top of the adjustment mechanism (3), and the training mechanism (2) comprises: A second platform (201), wherein first shaft blocks (202) are provided on both sides of the top of the second platform (201), a first rotating shaft (204) is movably provided on the first shaft block (202) on one side of the top of the second platform (201), a first sleeve shaft (205) is movably provided on the first shaft block (202) on the other side of the top of the second platform (201), a first sleeve shaft (205) is provided on one end of the shaft body of the first rotating shaft (204), and a first slotted half ring (2051) is provided on the first sleeve shaft (205); A first turning plate (2021), the first turning plate (2021) being arranged on the side of the first shaft platform (202) on one side of the top of the second platform (201), and a first bevel gear (222) being arranged on the body of the first turning plate (2021) via a movable shaft; a second sleeve shaft (206), the second sleeve shaft (206) being movably arranged on the first pillow block (202) on the other side of the top of the second table (201) through a bearing, a second slotted half ring (2061) being arranged at one end of the second sleeve shaft (206), the second slotted half ring (2061) being meshingly connected to the first bevel gear (2022), the first bevel gear (2022) being meshingly connected to the first slotted half ring (2051), a third turning plate (2062) being arranged at one side of the second slotted half ring (2061), and a second spring protrusion (2063) being arranged at the end of the third turning plate (2062); A third sleeve shaft (207), the third sleeve shaft (207) being arranged on the outer ring of the second sleeve shaft (206), a weight ring (2071) and an inner open gear ring (2072) being respectively arranged at two ends of the third sleeve shaft (207), and a first gear (2073) being arranged in the middle of the third sleeve shaft (207); A second shaft platform (301) is provided on both sides of the top of the first platform (104); a second straight groove plate (306) is provided on the second shaft platform (301) via a movable shaft; one end of the second straight groove plate (306) is connected to the end of the first straight groove plate (305) via a movable shaft; and the second straight groove plate (306) is connected to the bottom of the second platform (201); One end of the first sleeve shaft (205) is provided with a left straight groove plate (203) located on one side of the top of the first pillow block (202), and the side of the second sleeve shaft (206) is provided with a right straight groove plate (2031) located on the other side of the top of the second pillow block (301), and the top ends of the left straight groove plate (203) and the right straight groove plate (2031) are both provided with pedals (2032) via movable shafts; The adjusting mechanism (3) comprises a mounting groove (302), a screw rod (303) is provided on the groove body of the mounting groove (302) via a bearing, a threaded block (304) is threadedly connected to the screw rod (303), through grooves (3021) are provided on both sides of the mounting groove (302), a first straight groove plate (305) is provided on both sides of the threaded block (304) via a movable shaft, an extension shaft (3032) is provided at the end of the screw rod (303), and a second bevel gear (3031) is provided at the end of the extension shaft (3032).

2. A leg rehabilitation device according to claim 1, characterized in that: A structural ring (2052) is provided on one side of the first rotating shaft (204); a second turning plate (2053) is provided on one side of the ring body of the structural ring (2052); a first spring protrusion (2054) is provided at the end of the second turning plate (2053); and the open teeth of the inner open tooth ring (2072) are movably engaged with the tip ends of the first spring protrusion (2054) and the second spring protrusion (2063).

3. A leg rehabilitation device according to claim 2, characterized in that: The end of the first rotating shaft (204) is movably sleeved on the inner ring of the second sleeve shaft (206), the structural ring (2052) is movably overlapped with the second sleeve shaft (206), and the side surface of the counterweight ring (2071) is shorter than the side edge of the second sleeve shaft (206).

4. The leg rehabilitation device according to claim 3, characterized in that: A main rotating shaft (101) is provided between the rotating shafts of the wheels of the wheelchair (1), and a first pulley (102) is provided on the main rotating shaft (101).

5. The leg rehabilitation device according to claim 4, characterized in that: A linkage mechanism (4) is provided on one side of the top of the first platform (104), the linkage mechanism (4) comprising a first driven shaft (401), a second driven shaft (402) being provided on the side of the first driven shaft (401), and opposite end portions of the first driven shaft (401) and the second driven shaft (402) being movably connected to the second pillow block (301) via bearings.

6. The leg rehabilitation device according to claim 5, characterized in that: A third shaft block (403) located at the top of the second platform (201) is provided on one side of the first driven shaft (401); a fourth shaft block (404) located at the top of the second platform (201) is provided on one side of the second driven shaft (402); a first sliding lock (405) is provided on the side of the third shaft block (403) via a movable shaft; a third pulley (408) is provided on the side of the first sliding lock (405) away from the third shaft block (403); a third bevel gear (4051) is coaxially fixed on the first driven shaft (401); a second bevel gear (3031) meshingly connected to the third bevel gear (4051) is provided on one side of the fourth shaft block (404) via a movable shaft; and the fourth shaft block (404 ) is provided with a second sliding lock (406) on one side through a connecting piece, and the end of the second sliding lock (406) away from the fourth shaft platform (404) is connected to the second driven shaft (402), a second pulley (407) is provided on one side of the first sliding lock (405), and a fourth pulley (4081) is provided on the other side of the first sliding lock (405), and a fifth shaft platform (409) is provided on both sides of the center line of the top of the second platform (201), and a fifth pulley (410) and a sixth pulley (411) are provided at both ends of the split rotating shaft on the fifth shaft platform (409), respectively, and a second gear (4091) meshingly connected to the first gear (2073) is provided at the end of the rotating shaft of the fifth shaft platform (409).

7. The leg rehabilitation device according to claim 6, characterized in that: The first sliding lock buckle (405) and the second sliding lock buckle (406) have the same structure, and the second sliding lock buckle (406) comprises: A first side plate (4061), wherein a first side ring (4062) is provided on one side of the first side plate (4061), and opposite sides of the first side ring (4062) are each provided with a hexagonal groove (40621); A symmetrical middle ring (4063), wherein the ring body of the symmetrical middle ring (4063) is provided with hexagonal blocks (40631) disposed back to back via a structural member, and the ring body of the symmetrical middle ring (4063) is provided with a toggle ring (4067); A second side plate (4066), the side of which is provided with a third side ring (4065) and a second side ring (4064), and the third side ring (4065) and the second side ring (4064) are both provided with a hexagonal groove (40621).

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