Trackless lower limb walking rehabilitation equipment

Abstract

The invention relates to the technical field of lower limb walking auxiliary exercise equipment, in particular to trackless lower limb walking rehabilitation equipment which comprises a support assembly, the support assembly is composed of a U-shaped frame and four vertical columns fixedly mounted at the bottom of the U-shaped frame, and thigh auxiliary assemblies are arranged on plate bodies on the front side and the rear side of the U-shaped frame; the thigh auxiliary assembly comprises a supporting base fixedly installed on a side edge rod body of the U-shaped frame, an air cylinder is fixedly installed on the bottom face of the supporting base, a bottom plate is arranged on a telescopic shaft of the air cylinder, a fixing rod is fixedly installed on the side face of the bottom plate, an assembling disc is fixedly installed at the bottom end of the fixing rod, and a first servo motor is fixedly installed on the side face of the assembling disc. A thigh limiting plate is fixedly installed at the end of the rectangular square sleeve, a rubber pad is fixedly installed on the side face of the thigh limiting plate, and a restraint strap is fixedly installed on a plate body on the other side of the thigh limiting plate. The lower limb exerciser can assist a patient in exercising the lower limbs and is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of lower limb walking assistance training equipment technology, and more specifically, to a trackless lower limb walking rehabilitation device. Background Technology

[0002] With the increasing aging population and the growing demand for rehabilitation after various neurological diseases, sports injuries, and orthopedic surgeries, traditional rehabilitation methods are no longer sufficient to meet the growing needs. While traditional weight-loss walking training methods can help patients regain their walking ability to some extent, they suffer from low efficiency, difficulty in sustaining, and lack of personalization. Currently, in order to promote patients' lower limb walking rehabilitation exercises, corresponding lower limb walking rehabilitation equipment is usually used. There are many types of lower limb walking rehabilitation equipment on the market, such as walkers, joint rehabilitation robots, and exoskeleton robots. These devices, through advanced sensors and control systems, can monitor the patient's movement status and adjust and optimize rehabilitation training based on real-time data.

[0003] Utility model patent CN210056691U discloses a lower limb disability rehabilitation walking training device, including: a trapezoidal frame, rollers, anti-displacement rubber sleeves, handrails, a horizontal frame, a support frame, and a support plate. When a lower limb disability patient needs to walk, the patient stands up, and the caregiver moves the support plate to the top of the lower groove, then pushes the support plate forward so that the limiting bolt falls into the bottom of the upper groove. The patient holds the handrails and pushes them forward, lifting or dragging the anti-displacement rubber sleeve. After the patient takes a step forward, the anti-displacement rubber sleeve will move forward. When the patient needs a short rest, they can use their buttocks to lean against the support plate that has been placed on top. The patient does not need to repeatedly sit up and stand up when resting, avoiding unnecessary difficulties. The beneficial effect of this utility model is that it can provide a support position for lower limb disability patients without them having to sit down, and it also provides a place for lower limb disability patients to sit and rest.

[0004] Patent CN106176152A discloses a lower limb walking aid. The walking aid is crutches in shape and includes an upper outer support, a lower outer support, an upper inner support, a lower inner support, a hip fixation, an ankle fixation, a foot enhancement pad, hip tether connecting ears, knee tether connecting ears, and a locking device. Its novel structure solves the problem of using the hands to support the legs while walking, freeing the hands to carry objects or perform other tasks. Wearing this invention allows for extended walking distances and compensates for lost limb functions, such as making both lower limbs equal in length, enabling simultaneous action of the three joints, and distributing force evenly across both limbs, thus eliminating walking difficulties. Rehabilitation training during use gradually restores muscle strength to atrophied muscles or prevents further deterioration of weakened legs.

[0005] While the aforementioned technical solutions have their advantages, these devices struggle to adjust the height of their transmission mechanisms according to the patient's specific height during actual use. This hinders the use of mechanized structures to assist in raising and lowering the patient's lower limbs for appropriate assisted exercise. This is particularly problematic for patients with impaired lower limb mobility; the lack of mechanisms to promote lower limb movement negatively impacts the effectiveness of the exercise, or even makes lower limb exercises impossible, thus affecting the overall user experience and causing inconvenience. Therefore, we propose a trackless lower limb walking rehabilitation device. Summary of the Invention

[0006] The purpose of this invention is to provide a trackless lower limb walking rehabilitation device to address the deficiencies mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A trackless lower limb walking rehabilitation device includes a support assembly, which consists of a U-shaped frame and four vertical columns fixedly installed at the bottom of the U-shaped frame. Thigh auxiliary components are provided on both the front and rear side plates of the U-shaped frame. The thigh support assembly includes a support base fixedly mounted on the side rod of the U-shaped frame. A cylinder is fixedly mounted on the bottom surface of the support base. A base plate is provided on the telescopic shaft of the cylinder. A fixing rod is fixedly mounted on the side of the base plate. The fixing rod has an L-shaped cross-section. An assembly plate is fixedly mounted on the bottom end of the fixing rod. A first servo motor is fixedly mounted on the side of the assembly plate. A rectangular rod is fixedly mounted on the end of the output shaft of the first servo motor. A rectangular sleeve is fitted on the rectangular rod. The rectangular sleeve and the rectangular rod are fixedly connected by multiple fastening bolts. A thigh limiting plate is fixedly mounted on the end of the rectangular sleeve. A rubber pad is fixedly mounted on the side of the thigh limiting plate. An inclined strap hole is provided on one side of the thigh limiting plate. A restraint strap is fixedly mounted on the other side of the thigh limiting plate. A barbed hook and loop fastener is provided on the strap body of the restraint strap. A rough hook and loop fastener is provided on the end of the strap body of the restraint strap. The rough hook and loop fastener passes through the inclined strap hole and is bonded to the barbed hook and loop fastener.

[0008] As a preferred embodiment of the present invention, a support plate is fixedly installed at the bottom end of the vertical column, and the height of the vertical column is 80cm to 150cm.

[0009] As a preferred embodiment of the present invention, a horizontal bar is fixedly installed between the two vertical columns on the left and right sides, and a plurality of support rollers arranged linearly and equally spaced are rotatably connected between the two horizontal bars, with the distance between two adjacent support rollers being 2cm to 3.5cm.

[0010] As a preferred embodiment of the present invention, a first lifting ring is fixedly installed on each of the two side rods of the U-shaped frame, and a vertical rod is fixedly installed on each of the two side rods of the U-shaped frame. A plurality of second lifting rings arranged linearly and at equal intervals are fixedly installed on the vertical rod. A lifting assembly is provided on the support assembly, and the lifting assembly includes a crotch lifting strap. Two symmetrical pull ropes are fixedly installed at both ends of the crotch lifting strap, and hooks are fixedly installed at the ends of the pull ropes. The hooks are engaged with the corresponding first and second lifting rings.

[0011] As a preferred embodiment of the present invention, a hollow rectangular frame is fixedly installed on the bottom surface of the support base, the rectangular frame is fitted over the outside of the cylinder, and a rectangular sleeve is fixedly installed on the upper surface of the base plate, the rectangular sleeve is fitted over the rectangular frame and slidably connected to the rectangular frame.

[0012] As a preferred embodiment of the present invention, a steel plate is fixedly installed at the end of the telescopic shaft of the cylinder, and the base plate is fixedly installed on the bottom surface of the steel plate by a plurality of fastening bolts.

[0013] As a preferred embodiment of the present invention, the assembly plate is provided with an annular groove that communicates with the outside. Two centrally symmetrical limiting protrusions are fixedly installed on the rear wall of the annular groove. A blocking protrusion is fixedly installed on the output shaft, and the blocking protrusion is located between the two limiting protrusions.

[0014] As a preferred embodiment of the present invention, the surface of the rubber pad is provided with an arc-shaped surface, which fits against the thigh area. On the other side of the thigh limiting plate, a plurality of binding holes are provided in a linear and equally spaced manner. A plurality of equally spaced binding ropes are fixedly installed at the other end of the restraint strap. The binding ropes pass through the binding holes and are bound and fixed at the binding hole area.

[0015] As a preferred embodiment of the present invention, a display component is provided on the end rod of the U-shaped frame. The display component includes a guide rail that is vertically fixedly mounted on the end rod of the U-shaped frame. A sliding groove is provided in the guide rail along the vertical direction. A second servo motor is fixedly mounted on the bottom end of the guide rail. A lead screw is fixedly mounted on the end of the output shaft of the second servo motor. The lead screw is located in the sliding groove. A slider is threadedly connected to the lead screw. The slider is located in the sliding groove and slidably connected to the sliding groove. A rectangular plate is fixedly mounted on the end of the slider. A display is fixedly mounted on the front side of the rectangular plate.

[0016] As a preferred embodiment of the present invention, the size of the slider is adapted to the size of the groove, and the size of the rectangular rod is adapted to the size of the rectangular sleeve.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the design of a thigh auxiliary component, ensures that during use, the height of the thigh limiting plate can be adjusted by first using a cylinder to drive the first servo motor and the thigh limiting plate downwards, based on the patient's height. After the height adjustment is completed, the thigh limiting plate is fixed to the thigh limiting plate using a restraint strap. At this time, the first servo motor is located at the hip. The first servo motor then drives the thigh limiting plate to rotate, further lifting or lowering the thigh, thus enabling exercise. This invention is convenient to use and achieves the effect of adjusting according to the patient's height and mechanizing the lifting of the patient's lower limbs for exercise.

[0018] 2. The present invention, through the sliding connection between the rectangular sleeve and the rectangular frame, can protect the cylinder part inside, preventing it from being exposed to the outside, getting dusty, or having patient clothing or other items stuck in the cylinder's telescopic shaft.

[0019] 3. The present invention can limit the rotation angle of the output shaft by setting the limiting protrusion and blocking protrusion, so as to avoid the situation of hip sprain caused by excessive rotation angle. The rectangular sleeve and the rectangular rod are fixedly connected by multiple fastening bolts, which facilitates fixed installation and disassembly operations. After disassembly, it is convenient to inspect and replace the first servo motor and the thigh limiting plate.

[0020] 4. The present invention, through the designed lifting components, first hanging ring and second hanging ring, ensures that during use, the crotch lifting strap can be used to lift the patient's crotch area, thereby providing a certain degree of support for the patient. In addition, the two sides of the U-shaped frame can be gripped by the hands for convenient use.

[0021] 5. The present invention, through the set display components, can play corresponding health videos on the display. Through the set components such as the second servo motor, lead screw and slider, the second servo motor can work to drive the lead screw to rotate, which in turn drives the slider to move. As the slider moves, it can drive the display to move, thereby adjusting the height of the display for convenient use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the support assembly of the present invention; Figure 3 This is a schematic diagram of the structure of the lifting component of the present invention; Figure 4 This is a schematic diagram of the thigh support component of the present invention; Figure 5 This is an exploded structural diagram of the thigh support component of the present invention; Figure 6 This is one of the partial structural schematic diagrams of the thigh auxiliary component of the present invention; Figure 7 This is a second schematic diagram of a portion of the structure of the thigh auxiliary component of the present invention; Figure 8 This is the third partial structural schematic diagram of the thigh auxiliary component of the present invention; Figure 9 This is a schematic diagram of the structure of the display component of the present invention; Figure 10 This is an exploded view of the display component of the present invention.

[0023] The meanings of the labels in the diagram are as follows: 1. Support assembly; 10. U-shaped frame; 11. Vertical column; 12. Support plate; 13. Horizontal bar; 14. Support roller; 15. First lifting ring; 16. Vertical bar; 161. Second lifting ring; 2. Lifting assembly; 20. Crotch lifting strap; 21. Pull rope; 22. Hook; 3. Thigh auxiliary component; 30. Support base; 301. Rectangular frame; 31. Cylinder; 311. Steel plate; 32. Base plate; 321. Rectangular sleeve; 33. Fixing rod; 34. Assembly plate; 341. Annular groove; 342. Limiting protrusion; 35. First servo motor; 351. Output shaft; 352. Blocking protrusion; 353. Rectangular rod; 36. Thigh limiting plate; 361. Rectangular sleeve; 362. Inclined strap hole; 363. Binding hole; 37. Rubber pad; 371. Arc-shaped surface; 38. Restraint strap; 381. Binding rope; 382. Spiked hook and loop fastener; 383. Rough hook and loop fastener; 4. Display component; 40. Guide rail; 401. Slide rail; 41. Second servo motor; 42. Lead screw; 43. Slider; 44. Rectangular plate; 45. Display. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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 invention 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 invention.

[0026] Please see Figures 1-10 The present invention provides a technical solution: a trackless lower limb walking rehabilitation device, including a support assembly 1. The support assembly 1 consists of a U-shaped frame 10 and four vertical columns 11 fixedly installed at the bottom of the U-shaped frame 10. The U-shaped frame 10 has a U-shaped cross section and an opening on one side, which facilitates the patient to enter the U-shaped frame 10 from the opening side to perform assisted exercise operations, making entry and exit more convenient. Thigh auxiliary components 3 are provided on both the front and rear side plates of the U-shaped frame 10. The thigh auxiliary components 3 include a support seat 30 fixedly installed on the side rod of the U-shaped frame 10. The support seat 30 is vertically arranged. A cylinder 31 is fixedly installed on the bottom surface of the support seat 30. A base plate 32 is provided on the telescopic shaft of the cylinder 31. A fixing rod 33 is fixedly installed on the side of the base plate 32. The fixing rod 33 has an L-shaped cross section. An assembly plate 34 is fixedly installed at the bottom end of the fixing rod 33. The assembly plate 34 has a circular cross section. A first servo motor 35 is fixedly installed on the side of the assembly plate 34. The base of the first servo motor 35 is fixedly installed on the side of the assembly plate 34 by multiple fastening bolts, which facilitates the fixing, installation, disassembly and maintenance operations. Specifically, a rectangular rod 353 is fixedly installed at the end of the output shaft 351 of the first servo motor 35. The output shaft 351 extends out of the assembly plate 34 and is rotatably connected to the assembly plate 34. The rectangular rod 353 is located outside the assembly plate 34. A rectangular sleeve 361 is fitted on the rectangular rod 353. The rectangular sleeve 361 and the rectangular rod 353 are fixedly connected by multiple fastening bolts, which facilitates fixing, installation, and disassembly operations. A thigh limiting plate 36 is fixedly installed at the end of the rectangular sleeve 361. The thigh limiting plate 36 has a side... A rubber pad 37 is fixedly installed on one side near the thigh. An inclined strap hole 362 is provided on one side of the thigh limiting plate 36. A restraint strap 38 is fixedly installed on the other side of the thigh limiting plate 36. A barbed hook and loop fastener 382 is provided on the strap body of the restraint strap 38. A rough hook and loop fastener 383 is provided on the end of the strap body of the restraint strap 38. The rough hook and loop fastener 383 passes through the inclined strap hole 362 and is bonded to the barbed hook and loop fastener 382 to facilitate the binding and fixing of the thigh area.

[0027] Specifically, the rubber pad 37 can be supported by a rubber material with multiple through holes inside, which can improve breathability while ensuring comfort; the restraint strap 38 can be made of breathable fabric, which is a textile material with good breathability, allowing air and water vapor to pass freely while maintaining a certain degree of warmth and comfort.

[0028] In this embodiment, a support plate 12 is fixedly installed at the bottom of the vertical column 11. The height of the vertical column 11 is 80cm to 150cm. The support plate 12 is fixedly installed on the external concrete base by multiple fastening bolts to ensure that the structure is firm and stable. At the same time, the support plate 12 can also be placed directly on the ground for use.

[0029] Specifically, a horizontal bar 13 is fixedly installed between the two vertical columns 11 on the left and right. Multiple support rollers 14 arranged linearly and at equal intervals are rotatably connected between the two horizontal bars 13. The support rollers 14 can rotate to facilitate the patient to simulate walking on the support rollers 14. In addition, the distance between two adjacent support rollers 14 is 2cm to 3.5cm to prevent the person's feet from getting stuck in the gap between two adjacent support rollers 14.

[0030] Furthermore, first lifting rings 15 are fixedly installed on both sides of the U-shaped frame 10, and vertical rods 16 are fixedly installed on both sides of the U-shaped frame 10. The vertical rods 16 are vertically upward, and multiple second lifting rings 161 arranged linearly and at equal intervals are fixedly installed on the vertical rods 16. The support assembly 1 is provided with a lifting assembly 2, which includes a crotch lifting strap 20. Two symmetrical pull ropes 21 are fixedly installed at both ends of the crotch lifting strap 20. The crotch lifting strap 20 and the pull ropes 21 are integrally formed, ensuring that the overall structure is more robust and stable. The crotch lifting strap 20 can be made of cotton fabric, which is more comfortable and also helps to improve breathability. Hooks 22 are fixedly installed at the ends of the pull ropes 21. Specifically, the pull ropes 21... The end is tied and fixed to the hook 22 for easy binding and installation. Additionally, if the traction rope 21 breaks, the hook 22 can be disassembled and installed on a new traction rope 21. The hook 22 engages with the corresponding first and second rings 15 and 161, allowing the crotch support strap 20 to support the patient's crotch area, providing some support. Furthermore, since there are multiple second rings 161, the two rear hooks 22 can be suspended from the corresponding second rings 161, allowing adjustment of the crotch support strap 20's lifting height. Specifically, there are 8 to 10 second rings 161, with a distance of 3cm to 5cm between adjacent rings, enabling adjustment of the crotch support strap 20's lifting height within a certain range.

[0031] In addition, a hollow rectangular frame 301 is fixedly installed on the bottom surface of the support base 30. The rectangular frame 301 fits around the cylinder 31. A rectangular sleeve 321 is fixedly installed on the upper surface of the base plate 32. The rectangular sleeve 321 fits onto the rectangular frame 301 and is slidably connected to the rectangular frame 301. The size of the rectangular sleeve 321 matches that of the rectangular frame 301, allowing for stable sliding between the rectangular sleeve 321 and the rectangular frame 301. This ensures that during use, the rectangular sleeve 321 and the rectangular frame 301 can fit around the cylinder 31. The outer side of the cylinder 31 telescopic shaft serves a protective function, preventing clothing from getting caught in the cylinder 31 telescopic shaft. At the same time, both the rectangular sleeve 321 and the rectangular frame 301 can be made of alloy material, which has good thermal conductivity and can dissipate the heat generated by the cylinder 31 during operation in a timely manner. A steel plate 311 is fixedly installed at the end of the cylinder 31 telescopic shaft, and the base plate 32 is fixedly installed on the bottom surface of the steel plate 311 by multiple fastening bolts, which facilitates the fixed installation operation of the base plate 32.

[0032] It is worth noting that the assembly plate 34 is provided with an annular groove 341 that communicates with the outside. Two centrally symmetrical limiting protrusions 342 are fixedly installed on the rear wall of the annular groove 341. A blocking protrusion 352 is fixedly installed on the output shaft 351. The blocking protrusion 352 is located between the two limiting protrusions 342. The blocking protrusion rotates between the two limiting protrusions 342 to perform the limiting operation, and further to limit the rotation angle of the output shaft 351, so as to avoid the situation of hip sprain caused by excessive rotation angle. Specifically, the included angle between the blocking protrusion 352 and the two limiting protrusions 342 is 90°~120°. This angle meets the raising angle of the thigh and will not cause the thigh to be raised too much.

[0033] It is worth noting that the surface of the rubber pad 37 is provided with an arc-shaped surface 371, which fits the thigh area, conforms to ergonomics, and achieves the effect of improving comfort.

[0034] In this embodiment, a plurality of binding holes 363 arranged linearly and equally spaced are provided on the other side of the thigh limiting plate 36. A plurality of binding ropes 381 arranged equally spaced are fixedly installed on the other end of the restraint strap 38. The binding ropes 381 pass through the binding holes 363 and are bound and fixed at the binding holes 363, realizing a portable binding and fixing operation. At the same time, it is also convenient to replace the restraint strap 38 directly after it is damaged. Moreover, the restraint strap 38, binding ropes 381, hook and loop fasteners 383 and hook and loop fasteners 382 are integrally formed structures, ensuring that the overall structure is more solid and stable.

[0035] Specifically, a display component 4 is provided on the end rod of the U-shaped frame 10. The display component 4 includes a guide rail 40 that is vertically fixed on the end rod of the U-shaped frame 10. A slide groove 401 arranged in the vertical direction is provided in the guide rail 40. A second servo motor 41 is fixedly installed at the bottom end of the guide rail 40. A lead screw 42 is fixedly installed at the end of the output shaft of the second servo motor 41. The smooth column at the end of the lead screw 42 is rotatably connected to the end wall of the slide groove 401. The lead screw 42 is located in the slide groove 401. A slider 43 is threadedly connected to the lead screw 42. The slider 43 is located in the slide groove 401 and is slidably connected to the slide groove 401. A rectangular plate 44 is fixedly installed at the end of the slider 43. A display screen 45 is fixedly installed on the front side of the rectangular plate 44. The display screen 45 is provided with a display screen, which is convenient for playing corresponding animations. In addition, the height of the display screen 45 can be adjusted by using the second servo motor 41.

[0036] It is worth noting that both the slider 43 and the groove 401 have T-shaped cross sections. The size of the slider 43 is matched with the size of the groove 401, and the size of the rectangular rod 353 is matched with the size of the rectangular sleeve 361, so that the slider 43 can slide stably within the groove 401. At the same time, the insertion fit between the rectangular rod 353 and the rectangular sleeve 361 is also tighter.

[0037] Finally, it should be noted that the cylinder 31, the first servo motor 35, the second servo motor 41, and the display 45 involved in this invention are all general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the adapted controller and power supply, are connected by wires. The specific connection methods should refer to the working principle in this invention. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0038] When the trackless lower limb walking rehabilitation device of the present invention is used, the second servo motor 41 is connected to an external power source and made to work. When the second servo motor 41 works, its output shaft rotates, which drives the lead screw 42 to rotate. The rotation of the lead screw 42 drives the slider 43, which is threadedly connected to it, to move. The movement of the slider 43 drives the rectangular plate 44 and the display 45 to move, thereby adjusting the height of the display 45. In addition, after the patient walks to the U-shaped frame 10, he passes the crotch support strap 20 through the crotch area, hangs the two hooks 22 on the front side on the first hanging ring 15, and hangs the two hooks 22 on the back side on the second hanging ring 161 at the corresponding height, so as to realize the operation of using the crotch support strap 20 for support. Next, based on the patient's height and hip height, cylinder 31 is activated and put into operation. When cylinder 31 is in operation, the telescopic shaft on it extends or retracts, which can drive the base plate 32, fixing rod 33, assembly plate 34, first servo motor 35 and thigh limiting plate 36 to move, thereby adjusting the position of thigh limiting plate 36. The patient places their thigh against the arc-shaped surface 371 of the rubber pad 37. Then, the restraint strap 38 is put on the thigh area and passed through the inclined strap hole 362. At the same time, the restraint strap 38 is tightened. Finally, the rough-surface hook and loop fastener 383 is fastened to the barbed-surface hook and loop fastener 382 to complete the adhesive fixation operation. Finally, the first servo motor 35 is connected to an external power source and put into operation. When the first servo motor 35 is working, its output shaft rotates, causing the thigh limiting plate 36 to rotate. After the thigh limiting plate 36 rotates, it causes the thigh to be raised or lowered along the hip, thus realizing the rehabilitation exercise operation of the lower limb. For patients with some mobility, they can directly step on the support roller 14 and hold onto the two sides of the U-shaped frame 10 to perform exercises.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trackless lower limb walking rehabilitation device, comprising a support assembly (1), characterized in that: The support assembly (1) consists of a U-shaped frame (10) and four vertical columns (11) fixedly installed at the bottom of the U-shaped frame (10). Thigh auxiliary components (3) are provided on the front and rear side plates of the U-shaped frame (10). The thigh assist component (3) includes a support base (30) fixedly mounted on the side rod of the U-shaped frame (10). A cylinder (31) is fixedly mounted on the bottom surface of the support base (30). A base plate (32) is provided on the telescopic shaft of the cylinder (31). A fixing rod (33) is fixedly mounted on the side of the base plate (32). The fixing rod (33) has an L-shaped cross-section. An assembly plate (34) is fixedly mounted at the bottom end of the fixing rod (33). A first servo motor (35) is fixedly mounted on the side of the assembly plate (34). A rectangular rod (353) is fixedly mounted at the end of the output shaft (351) of the first servo motor (35). A rectangular sleeve (361) is fitted on the rectangular rod (353). 61) The rectangular rod (353) is fixedly connected to the rectangular sleeve (361) by multiple fastening bolts. A thigh limiting plate (36) is fixedly installed at the end of the rectangular sleeve (361). A rubber pad (37) is fixedly installed on the side of the thigh limiting plate (36). An inclined strap hole (362) is provided on one side of the thigh limiting plate (36). A restraint strap (38) is fixedly installed on the other side of the thigh limiting plate (36). A barbed hook and loop fastener (382) is provided on the strap of the restraint strap (38). A rough hook and loop fastener (383) is provided on the end of the strap of the restraint strap (38). The rough hook and loop fastener (383) passes through the inclined strap hole (362) and is bonded to the barbed hook and loop fastener (382).

2. The trackless lower limb walking rehabilitation device according to claim 1, characterized in that: A support plate (12) is fixedly installed at the bottom of the vertical column (11), and the height of the vertical column (11) is 80cm to 150cm.

3. The trackless lower limb walking rehabilitation device according to claim 1, characterized in that: A horizontal bar (13) is fixedly installed between the two vertical columns (11) on the left and right. A plurality of support rollers (14) arranged linearly and equally spaced are rotatably connected between the two horizontal bars (13). The distance between two adjacent support rollers (14) is 2cm to 3.5cm.

4. The trackless lower limb walking rehabilitation device according to claim 1, characterized in that: First lifting rings (15) are fixedly installed on both sides of the U-shaped frame (10). Vertical rods (16) are fixedly installed on both sides of the U-shaped frame (10). Multiple second lifting rings (161) are fixedly installed on the vertical rods (16) in a linear and equidistant arrangement. A lifting assembly (2) is provided on the support assembly (1). The lifting assembly (2) includes a crotch lifting strap (20). Two symmetrical pull ropes (21) are fixedly installed at both ends of the crotch lifting strap (20). A hook (22) is fixedly installed at the end of the pull rope (21). The hook (22) is engaged with the corresponding first lifting ring (15) and second lifting ring (161).

5. The trackless lower limb walking rehabilitation device according to claim 1, characterized in that: A hollow rectangular frame (301) is fixedly installed on the bottom surface of the support base (30). The rectangular frame (301) is fitted around the outside of the cylinder (31). A rectangular sleeve (321) is fixedly installed on the upper surface of the base plate (32). The rectangular sleeve (321) is fitted onto the rectangular frame (301) and is slidably connected to the rectangular frame (301).

6. The trackless lower limb walking rehabilitation device according to claim 1, characterized in that: A steel plate (311) is fixedly installed at the end of the telescopic shaft of the cylinder (31), and the base plate (32) is fixedly installed on the bottom surface of the steel plate (311) by a number of fastening bolts.

7. The trackless lower limb walking rehabilitation device according to claim 1, characterized in that: The assembly plate (34) is provided with an annular groove (341) that communicates with the outside. Two centrally symmetrical limiting protrusions (342) are fixedly installed on the rear side wall of the annular groove (341). A blocking protrusion (352) is fixedly installed on the output shaft (351). The blocking protrusion (352) is located between the two limiting protrusions (342).

8. The trackless lower limb walking rehabilitation device according to claim 1, characterized in that: The surface of the rubber pad (37) is provided with an arc-shaped surface (371), which fits against the thigh. On the other side of the thigh limiting plate (36), there are multiple binding holes (363) arranged linearly and equally. At the other end of the restraint strap (38), multiple binding ropes (381) are fixedly installed. The binding ropes (381) pass through the binding holes (363) and are bound and fixed at the binding hole (363) location.

9. The trackless lower limb walking rehabilitation device according to claim 1, characterized in that: A display component (4) is provided on the end rod of the U-shaped frame (10). The display component (4) includes a guide rail (40) fixedly mounted vertically on the end rod of the U-shaped frame (10). A slide groove (401) is provided in the guide rail (40) along the vertical direction. A second servo motor (41) is fixedly mounted at the bottom end of the guide rail (40). A lead screw (42) is fixedly mounted at the end of the output shaft of the second servo motor (41). The lead screw (42) is located in the slide groove (401). A slider (43) is threadedly connected to the lead screw (42). The slider (43) is located in the slide groove (401) and is slidably connected to the slide groove (401). A rectangular plate (44) is fixedly mounted at the end of the slider (43). A display (45) is fixedly mounted on the front side of the rectangular plate (44).

10. The trackless lower limb walking rehabilitation device according to claim 9, characterized in that: The size of the slider (43) is adapted to the size of the groove (401), and the size of the rectangular rod (353) is adapted to the size of the rectangular sleeve (361).

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