Lower limb unilateral load-bearing self-adaptive stable traumatic orthopedics walking aid

Abstract

The invention relates to the technical field of walking aids, and discloses a lower limb single-side load-bearing self-adaptive stable traumatic orthopedics walking aid which comprises a force bearing column and an arc-shaped plate, a stable grounding mechanism is arranged at the bottom of the arc-shaped plate, and the stable grounding mechanism is used for enabling a patient to be more stable when the equipment is used. Height adjusting mechanisms are arranged at the tops of the two force bearing columns, the height adjusting mechanisms are used for adjusting the height so as to adapt to patients of different heights, leg wrapping mechanisms are arranged at the tops of the height adjusting mechanisms, and the leg wrapping mechanisms are used for fixing the equipment to the legs of the patients. The universal ball at the bottom of the force bearing column drives the arc-shaped plate to adjust the angle; the anti-slip strips push the force guide rods to extrude the high-pressure springs, the springs deform to absorb impact and enable the anti-slip strips to be attached to the ground, and the effects that the walking aid adjusts the angle in a self-adaptive mode along with the action of the patient, touchdown impact is buffered, load is dispersed, the walking aid adapts to different grounds, and stability and comfort during single-side load bearing are improved are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of walkers, and in particular to a lower limb unilateral load-bearing adaptive stabilizing trauma orthopedic walker. Background Art

[0002] Orthopedic trauma walkers are medical devices used to assist patients with lower limb trauma during walking rehabilitation. They are primarily used during the postoperative recovery phase of fracture and joint replacement surgery. By providing an additional support point, they distribute the weight-bearing pressure on one lower limb, helping patients maintain balance, reducing stress on the injured area, and lowering the risk of secondary injury. They are crucial aids in orthopedic trauma rehabilitation, enhancing patient mobility and promoting limb function recovery.

[0003] Among existing orthopedic walkers, the unilateral cane is one of the most common types. It consists of a single support rod, a top handle, and a bottom non-slip pad. By gripping the handle, the patient transfers some of their weight to the cane, effectively sharing the weight of their lower limb. However, this type of cane has a single support point, and the bottom non-slip pad has a small contact area with the ground. When used on uneven surfaces or slippery tiles, the non-slip pad struggles to fully adhere to the ground, resulting in slipping due to insufficient friction, increasing the risk of falls.

[0004] To solve the problem of slipping on complex surfaces, some existing crutches have added a multi-contact anti-slip structure at the bottom or adopted a multi-claw contact design. The multiple anti-slip claws contact the ground to improve the grip. The anti-slip claws contact different raised parts according to the undulations of the ground, thereby increasing friction to avoid slipping. However, when the patient's center of gravity shifts when walking or the ground is laterally tilted, the anti-slip claws cannot adaptively adjust the contact angle, and the force on each contact point is difficult to balance; the connection between the support rod and the bottom structure is rigidly fixed and cannot generate lateral buffering as the body shakes. As a result, at the moment of center of gravity shift, the crutch is prone to lateral tilt due to the force concentrated on the unilateral anti-slip claws, which in turn causes overall instability. Especially when the patient's gait is unstable, the risk of such lateral tilt is more prominent, making it difficult to ensure stability when walking on complex surfaces. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a lower limb unilateral load-bearing adaptive stable trauma orthopedic walker, which solves the problem that crutches are prone to lateral tilting due to the concentration of force on the unilateral anti-slip claws, thereby causing overall instability.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a lower limb unilateral load-bearing adaptive stable trauma orthopedic walker, comprising a load-bearing column and an arc-shaped plate. The bottom of the arc-shaped plate is provided with a stable ground contact mechanism, which is used to make the patient more stable when using the device. The tops of the two load-bearing columns are each provided with a height adjustment mechanism, which is used to adjust the height to adapt to patients of different heights. The top of the height adjustment mechanism is provided with a leg wrap mechanism, which is used to fix the device to the patient's leg.

[0007] The stable ground contact mechanism includes multiple cylindrical silos, which are respectively fixedly connected to the four corners of the top of the arc-shaped plate. The interiors of the multiple cylindrical silos are fixedly connected with high-pressure springs, and the bottom ends of the multiple high-pressure springs are fixedly connected with force guide rods. The bottom ends of the two front force guide rods and the two rear force guide rods are fixedly connected with anti-slip strips. Travel grooves are provided on the front and rear sides of the bottom of the arc-shaped plate. The two anti-slip strips match the sizes of the two travel grooves. A universal joint assembly is provided between the two load-bearing columns and the arc-shaped plate.

[0008] Preferably, the height adjustment mechanism includes two force-bearing rods 1, the tops of the two force-bearing rods 1 are fixedly connected to connecting rods, the outsides of the two connecting rods are slidably connected to force-bearing rods 2, the outsides of the two force-bearing rods 2 are equidistantly provided with adjustment holes, the outer tops of the two connecting rods are installed with spring telescopic pins, the two spring telescopic pins are respectively engaged in the inside of the two adjustment holes at the top, the outsides of the two force-bearing rods 2 are passed through the bottom adjustment holes with fastening bolts, the ends of the two fastening bolts are respectively threadedly connected to the inside of the two connecting rods, and the tops of the two force-bearing rods 2 are provided with connecting components.

[0009] Preferably, the legging mechanism includes a plurality of straps, the left and right ends of the plurality of straps are fixedly connected with connecting straps, the front sides of the plurality of straps are provided with adjustment components, the left and right sides of the two bottom straps are provided with force-bearing shells, the four inner corners of the two force-bearing shells are fixedly connected with mounting parts, and the plurality of mounting parts on the left and the plurality of mounting parts on the right are respectively fixedly connected to the left and right sides of the middle strap and the left and right sides of the bottom strap.

[0010] Preferably, the universal joint assembly includes two universal balls, and the two universal balls are respectively fixedly connected to the bottom end of the load-bearing column. The left and right ends of the top of the arc plate are fixedly connected to the mounting columns. The tops of the two mounting columns are each provided with a spherical rotation groove, and the two universal balls are respectively rotatably connected inside the two spherical rotation grooves.

[0011] Preferably, the connecting assembly includes two connecting plates, which are respectively fixedly connected to the top ends of the two force-bearing rods, and the tops of the two connecting plates are respectively vertically slidably connected to the insides of the two force-bearing shells. The front and rear sides of the two connecting plates are provided with locking pins, and the two locking pins respectively pass through the front and rear sides of the two force-bearing shells.

[0012] Preferably, the ends of the plurality of locking pins are fixedly connected with elastic sheets, and the interiors of the two connecting plates are provided with engaging chambers, and the plurality of elastic sheets are respectively engaged with the interiors of the two engaging chambers.

[0013] Preferably, the adjustment component includes a plurality of Japanese-shaped rings, and the plurality of Japanese-shaped rings are respectively fixedly connected to one end of a plurality of straps, and the other ends of the plurality of straps respectively pass through the interior of the plurality of Japanese-shaped rings, and the outer left side and the inner left end of the plurality of straps are fixedly connected with Velcro.

[0014] Preferably, the height adjustment mechanism further includes two knobs, the two knobs are respectively fixedly connected to the outer ends of the two fastening bolts, and the outer surfaces of the two knobs are designed to be anti-slip.

[0015] Preferably, the inner bottom ends of the two load-bearing columns are fixedly connected with tension springs, the bottom ends of the two force-bearing rods are respectively slidably connected to the inside of the two load-bearing columns, and the bottoms of the two force-bearing rods are respectively attached to the top ends of the two tension springs.

[0016] Preferably, a wear-resistant plate is fixedly connected to the bottom of the arc-shaped plate, and the wear-resistant plate is made of polyurethane rubber.

[0017] The present invention provides a lower limb unilateral load-bearing adaptive stabilization orthopedic walker with the following beneficial effects:

[0018] 1. The present invention uses a universal ball at the bottom of the load-bearing column to drive the curved plate to adjust its angle. When the walker touches the ground, the anti-slip strip pushes the guide rod to squeeze the high-pressure spring. The spring deformation absorbs the impact and makes the anti-slip strip fit the ground. This enables the walker to adaptively adjust its angle according to the patient's movements, cushions the impact of touching the ground, disperses the load, adapts to different ground conditions, prevents rollover and sliding, and improves stability and comfort when bearing weight on one side.

[0019] 2. The present invention presses the spring telescopic pin out of the adjustment hole and slides the force-bearing rod to the target position. The spring telescopic pin pops out to form a preliminary positioning, and then tightens the fastening bolt through the adjustment hole to thread the connecting rod; pushes the locking pin to engage the elastic sheet in the engagement chamber, fixes the connecting plate and the force-bearing shell, and realizes multi-level height adjustment and precise positioning. Double locking enhances structural rigidity, adapts to patients of different heights, ensures consistency of the load-bearing axis, improves safety and comfort in use, and meets the personalized needs of the rehabilitation period of traumatic lower limbs.

[0020] 3. The present invention forms a surrounding structure through a strap through a connecting belt. The end of the strap is pulled through the Japanese-shaped ring to adjust the tightness. The Japanese-shaped ring limits the retreat, and the Velcro is fixed with adhesive. The force-bearing shell transmits the binding force to the connecting component through the mounting part, disperses the leg pressure, realizes the stable connection of the equipment with different leg shapes, adapts to the difference in leg thickness, avoids local compression, facilitates quick wearing and disassembly, forms a complete force chain, and ensures stability and comfort in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 It is a front view of the present invention;

[0023] Figure 3 A partial cross-sectional view of the stable ground contact mechanism of the present invention;

[0024] Figure 4 It is a cross-sectional view of the second stress-bearing rod in the present invention;

[0025] Figure 5 This is a structural breakdown diagram of the connection component in the present invention;

[0026] Figure 6 is a cross-sectional view of the connecting plate of the present invention;

[0027] Figure 7 Schematic diagram of the partial structure of the leg-binding mechanism of the present invention;

[0028] Figure 8 It is a cross-sectional view of the load-bearing column in the present invention.

[0029] Among them, 1. Load-bearing column; 2. Arc plate; 3. Stable ground contact mechanism; 31. Cylindrical silo; 32. High-pressure spring; 33. Guide rod; 34. Anti-slip strip; 35. Travel groove; 36. Universal assembly; 361. Universal ball; 362. Mounting column; 363. Spherical rotation groove; 4. Height adjustment mechanism; 41. Force rod one; 42. Connecting rod; 43. Force rod two; 44. Adjustment hole; 45. Spring telescopic pin; 46. Fastening bolt; 47. Connecting assembly; 471. Connecting plate; 472. Locking pin; 473. Elastic sheet; 474. Engaging bin; 48. Knob; 5. Leg binding mechanism; 51. Strap; 52. Connecting strap; 53. Adjustment assembly; 531. Japanese-shaped ring; 532. Velcro; 54. Load shell; 55. Mounting parts; 6. Tension spring; 7. Wear-resistant plate. DETAILED DESCRIPTION

[0030] With reference to the drawings of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0031] Please refer to the drawings of the present application Figure 1 - the drawings of the present application Figure 3 The embodiment of the present application provides a lower limb unilateral load-bearing adaptive stable trauma orthopedic walking aid, which comprises a lower limb unilateral load-bearing adaptive stable trauma orthopedic walking aid, which comprises a force bearing column 1 and an arc-shaped plate 2, and the bottom of the arc-shaped plate 2 is provided with a stable ground contact mechanism 3, the stable ground contact mechanism 3 is used for making the patient more stable when using the equipment, the top of the two force bearing columns 1 is provided with a height adjusting mechanism 4, the height adjusting mechanism 4 is used for adjusting the height, so as to adapt to patients of different heights, and the top of the height adjusting mechanism 4 is provided with a leg binding mechanism 5, the leg binding mechanism 5 is used for fixing the equipment on the leg of the patient.

[0032] The stable ground contact mechanism 3 comprises a plurality of cylindrical bins 31, the plurality of cylindrical bins 31 are fixedly connected at the top of the four corners of the arc-shaped plate 2, high-pressure springs 32 are fixedly connected in the plurality of cylindrical bins 31, the bottom ends of the plurality of high-pressure springs 32 are fixedly connected with guide rods 33, the bottom ends of the front two guide rods 33 and the rear two guide rods 33 are fixedly connected with anti-skid strips 34, travel grooves 35 are formed in the bottom of the arc-shaped plate 2, the sizes of the two anti-skid strips 34 and the two travel grooves 35 are matched, universal assemblies 36 are arranged between the two force bearing columns 1 and the arc-shaped plate 2, the universal assemblies 36 comprise two universal balls 361, the two universal balls 361 are fixedly connected at the bottom ends of the force bearing columns 1, mounting columns 362 are fixedly connected at the top of the arc-shaped plate 2, spherical rotating grooves 363 are formed in the top of the two mounting columns 362, and the two universal balls 361 are rotatably connected in the two spherical rotating grooves 363.

[0033] Specifically, in the stable ground contact mechanism 3, the plurality of cylindrical bins 31 are fixed at the top of the four corners of the arc-shaped plate 2, the high-pressure springs 32 in the inside are connected with the guide rods 33, the anti-skid strips 34 are fixed at the bottom ends of the front and rear guide rods 33, and the sizes of the anti-skid strips 34 and the travel grooves 35 in the bottom of the arc-shaped plate 2 are matched; the universal balls 361 at the bottom ends of the two force bearing columns 1 are rotatably connected in the spherical rotating grooves 363 of the mounting columns 362 at the top of the arc-shaped plate 2.

[0034] When the patient uses, the lower limbs are connected with the leg binding mechanism 5 and the height adjusting mechanism 4, the load is transmitted to the universal assemblies 36 through the force bearing columns 1; the universal balls 361 rotate in the spherical rotating grooves 363, so that the arc-shaped plate 2 can adjust the angle according to the action of the patient, and adapt to the movement track of the lower limbs.

[0035] During the ground contact process, the anti-slip strip 34 first contacts the ground. The ground reaction force pushes the guide rod 33 to retract into the cylindrical silo 31, squeezing the high-pressure spring 32. The elastic deformation of the high-pressure spring 32 absorbs the impact of the ground contact and generates a reverse elastic force, making the anti-slip strip 34 fit tightly to the ground.

[0036] Under different ground flatnesses, the amount of contraction of each force guide rod 33 varies with the ground undulations. The elastic force of the high-pressure spring 32 is adjusted accordingly to ensure that the curved plate 2 and the anti-slip strip 34 touch the ground at the same time. The travel groove 35 limits the lateral displacement of the anti-slip strip 34, enhancing overall stability. The friction between the anti-slip strip 34 and the ground prevents the walker from sliding. The rotational freedom of the universal assembly 36 ensures that the curved plate 2 always maintains a contact with the ground. The load-bearing column 1 converts the vertical force into pressure on the curved plate 2 through the universal ball 361, which is then distributed to each anti-slip strip 34.

[0037] The height adjustment mechanism 4 adapts to different patient heights by adjusting the relative position of the load-bearing column 1 and the leg-binding mechanism 5, ensuring that the load-bearing direction is consistent with the axis of the lower limb. The leg-binding mechanism 5 fixes the device to the leg to prevent relative sliding during use and ensure effective force transmission. The elastic properties of the high-pressure spring 32 provide a buffering function for the stable contact mechanism 3, reducing the impact on the patient's injured area. The multi-angle rotation capability of the universal assembly 36 adapts to the patient's gait changes during walking, avoiding movement restrictions.

[0038] The distributed contact surface design of multiple anti-slip strips 34 expands the support area and, in conjunction with the limiting function of the travel groove 35, prevents the walker from tipping over. The mounting post 362 provides structural support for the universal assembly 36, ensuring the stability of the universal ball 361 during rotation and achieving adaptive balance when the walker is bearing weight on one side. The height adjustment mechanism 4 and the leg-binding mechanism 5 ensure the compatibility of the device with the patient, thereby enhancing safety and comfort.

[0039] The walker distributes the patient's weight to multiple contact points through the mutual cooperation of the mechanical structure. It uses the elastic deformation of the high-pressure spring 32 and the rotation characteristics of the universal ball 361 to automatically adjust the support angle and force, providing a stable and flexible support environment for the traumatized lower limbs.

[0040] Please see the attached Figure 4 -Attached Figure 6The height adjusting mechanism 4 comprises two force rods 41, the top of each of the two force rods 41 is fixedly connected with a connecting rod 42, the outer part of each of the two connecting rods 42 is slidingly connected with a force rod 43, the outer part of each of the two force rods 43 is equidistantly provided with an adjusting hole 44, the top of the outer side of each of the two connecting rods 42 is provided with a spring telescopic pin 45, each of the two spring telescopic pins 45 is clamped in the inner part of the top two adjusting holes 44, the outer part of each of the two force rods 43 is penetrated by a fastening bolt 46 through the bottom adjusting hole 44, the tail end of each of the two fastening bolts 46 is threadedly connected in the inner part of each of the two connecting rods 42, the top of each of the two force rods 43 is provided with a connecting assembly 47, the connecting assembly 47 comprises two connecting plates 471, each of the two connecting plates 471 is fixedly connected at the top of each of the two force rods 43, the top of each of the two connecting plates 471 is perpendicularly slidingly connected in the inner part of each of the two force shells 54, the front and back sides of each of the two connecting plates 471 are provided with a locking pin 472, each of the two locking pins 472 is penetrated in the front and back sides of each of the two force shells 54, the tail end of each of the plurality of locking pins 472 is fixedly connected with an elastic sheet 473, the inner part of each of the two connecting plates 471 is provided with a clamping bin 474, each of the plurality of elastic sheets 473 is clamped in the inner part of each of the two clamping bins 474.

[0041] Specifically, the top of the force rod 41 of the height adjusting mechanism 4 is fixedly connected with the connecting rod 42, the outer part of the connecting rod 42 is slidingly connected with the force rod 43, the outer part of the force rod 43 is equidistantly provided with the adjusting hole 44, and the spring telescopic pin 45 on the top of the outer side of the connecting rod 42 is clamped in the top adjusting hole 44; the force rod 43 is penetrated by the fastening bolt 46 through the bottom adjusting hole 44, and the tail end thereof is threadedly connected in the inner part of the connecting rod 42; the connecting plate 471 at the top of the force rod 43 is perpendicularly slidingly connected in the inner part of the force shell 54, the locking pin 472 is penetrated in the front and back sides of the force shell 54, and the tail end elastic sheet 473 is clamped in the clamping bin 474 of the connecting plate 471;

[0042] When the height is adjusted, the spring telescopic pin 45 is pressed to be separated from the adjusting hole 44, the force rod 43 is pushed to slide along the connecting rod 42 until the spring telescopic pin 45 is aligned with the target adjusting hole 44 and is popped out to form the preliminary positioning; the fastening bolt 46 is screwed to be penetrated in the adjusting hole 44 and threadedly connected with the connecting rod 42 to generate the axial pressure to fix the relative position of the force rod 43 and the connecting rod 42;

[0043] The connection assembly 47 realizes the fine adjustment of the vertical position of the leg binding mechanism 5 and the height adjustment mechanism 4 through the sliding of the connecting plate 471 in the force shell 54; the pushing of the locking pin 472 makes it penetrate through the force shell 54, and the elastic sheet 473 is pressed to deform and then enters the clamping bin 474 and resets, clamping and fixing the connecting plate 471 and the force shell 54; the cooperation of the spring telescopic pin 45 and the adjusting hole 44 provides multi-position adjustment selection, the threaded connection of the fastening bolt 46 enhances the locking strength and prevents loosening caused by vibration during use; the sliding cooperation of the connecting plate 471 and the force shell 54 allows the leg binding mechanism 5 to adjust with the slight displacement of the leg, and the clamping of the locking pin 472 and the elastic sheet 473 ensures the stability of the position after adjustment;

[0044] The force rod one 41 transmits the force of the load-bearing column 1 to the connecting rod 42, and the force rod two 43 transmits the force to the connecting assembly 47, realizing the continuous transmission of the load-bearing path; the equidistant distribution of the adjusting hole 44 ensures the uniformity of height adjustment and adapts to the length difference of lower limbs of different patients;

[0045] The deformation ability of the elastic sheet 473 allows the locking pin 472 to be quickly inserted and pulled out, facilitating the position adjustment of the connecting assembly 47; the friction force generated by the threaded connection of the fastening bolt 46 and the connecting rod 42 supplements the positioning force of the spring telescopic pin 45, improving the overall structural rigidity;

[0046] The vertical sliding function of the connecting assembly 47 allows the leg binding mechanism 5 to adapt to the fixing needs of different positions of the leg, and the penetration design of the locking pin 472 ensures that there is no relative rotation after adjustment; the sliding cooperation of the force rod two 43 and the connecting rod 42 provides the basis for height adjustment, and the double locking of the spring telescopic pin 45 and the fastening bolt 46 guarantees the adjustment accuracy;

[0047] The height adjustment mechanism 4 realizes the precise control and stable maintenance of the height of the device through multi-level adjustment and double locking, cooperates with the leg binding mechanism 5 and the stable ground contact mechanism 3, ensures that the lower limbs of the patient are consistent with the axis of the device when bearing the load, and improves the safety and comfort of use.

[0048] Please refer to the attached Figure 2 , attached Figure 5 and attached Figure 7The legging mechanism 5 includes a plurality of straps 51, and the left and right ends of the plurality of straps 51 are fixedly connected with connecting straps 52. The front sides of the plurality of straps 51 are provided with adjustment components 53. The left and right sides of the two bottom straps 51 are provided with force-bearing shells 54. The four inner corners of the two force-bearing shells 54 are fixedly connected with mounting parts 55. The left-side plurality of mounting parts 55 and the right-side plurality of mounting parts 55 are respectively fixedly connected to the left and right sides of the middle strap 51 and the left and right sides of the bottom strap 51. The adjustment component 53 includes a plurality of Japanese-shaped rings 531, and the plurality of Japanese-shaped rings 531 are respectively fixedly connected to one end of the plurality of straps 51, and the other ends of the plurality of straps 51 respectively pass through the interior of the plurality of Japanese-shaped rings 531. The outer left side and the inner left end of the plurality of straps 51 are fixedly connected with Velcro 532.

[0049] Specifically, in the legging mechanism 5, multiple straps 51 are connected by a connecting belt 52 to form a binding structure that surrounds the leg. The force-bearing shells 54 on the left and right sides of the bottom strap 51 are fixed to the middle strap 51 and the bottom strap 51 through the mounting member 55. The Japanese-shaped ring 531 of the adjustment component 53 is fixed to one end of the strap 51, and the other end of the strap 51 passes through the Japanese-shaped ring 531. The Velcro 532 on the outer left end and the inner left end can be bonded to each other.

[0050] When the strap 51 is wrapped around the patient's leg, the tightness of the strap 51 can be adjusted by pulling the end of the strap 51 that passes through the "Japanese" ring 531. The "Japanese" ring 531 limits the retraction of the strap 51 through friction, so that the strap 51 fits the contour of the leg. The Velcro 532 is adhered to fix the adjusted length.

[0051] The load-bearing shell 54 transmits the restraining force of the strap 51 to the connecting assembly 47 of the height adjustment mechanism 4 through the mounting member 55, so that the leg force is transmitted to the second load-bearing rod 43 through the strap 51 and the load-bearing shell 54. The distributed restraint design of multiple straps 51 disperses the pressure on the leg and avoids discomfort caused by localized compression.

[0052] Due to the differences in leg thickness among patients, the adjustment component 53 adjusts the restraint range by changing the through-length of the strap 51. The adhesive strength of the Velcro 532 ensures that it does not loosen during use. The structural characteristics of the Japanese-shaped ring 531 keep the strap 51 taut when stressed, enhancing the fixation stability.

[0053] The connecting belt 52 connects the adjacent straps 51 to form an overall restraint system, preventing a single strap 51 from being broken due to excessive force; the mounting member 55 converts the tension of the strap 51 into the internal force of the load-bearing shell 54, preventing the connection point between the strap 51 and the load-bearing shell 54 from falling off; the flexible material of the strap 51 adapts to the deformation during leg movement, and the adjustability of the adjustment component 53 allows the patient to fine-tune the tightness according to comfort; the repeated adhesion property of the Velcro 532 facilitates the quick wearing and removal of the leg wrapping mechanism 5; the sliding connection between the load-bearing shell 54 and the height adjustment mechanism 4 allows the leg wrapping mechanism 5 to move slightly up and down with the leg, avoiding excessive tightening that affects blood circulation; the symmetrical distribution of multiple straps 51 ensures balanced force on the leg and prevents the device from leaning to one side;

[0054] The leg-binding mechanism 5 achieves a firm connection between the device and the legs through a combination of flexible restraint and rigid transmission, while ensuring comfort of use. It cooperates with the height adjustment mechanism 4 and the stable ground contact mechanism 3 to form a complete force chain from the legs to the ground.

[0055] Please see the attached Figure 2 , Attachment Figure 4 and attached Figure 8 The height adjustment mechanism 4 also includes two knobs 48, which are respectively fixedly connected to the outer ends of the two fastening bolts 46, and the outer surfaces of the two knobs 48 adopt an anti-slip design; the inner bottom ends of the two load-bearing columns 1 are fixedly connected to the tension springs 6, and the bottom ends of the two force-bearing rods 41 are respectively slidably connected to the inside of the two load-bearing columns 1, and the bottoms of the two force-bearing rods 41 are respectively fitted on the top ends of the two tension springs 6; the bottom of the arc plate 2 is fixedly connected to the wear-resistant plate 7, and the wear-resistant plate 7 is made of polyurethane rubber.

[0056] Specifically, the knob 48 of the height adjustment mechanism 4 is fixed to the outer end of the fastening bolt 46, and the anti-slip design of the outer surface increases the friction of the hand grip; turning the knob 48 can drive the fastening bolt 46 to rotate, causing it to move axially along the adjustment hole 44, thereby locking or unlocking the connecting rod 42 and the force-bearing rod 43. The anti-slip design of the knob 48 makes the rotation operation of the fastening bolt 46 more labor-saving, avoiding the reduction of adjustment efficiency due to hand slippage; during the locking process, the knob 48 provides clear operational feedback to ensure that the fastening bolt 46 reaches the preset locking force;

[0057] The top of the tension spring 6 at the bottom end of the load-bearing column 1 fits against the bottom of the load-bearing rod 41. When the load-bearing rod 41 slides along the inside of the load-bearing column 1, it squeezes the tension spring 6 to produce elastic deformation; the reverse elastic force of the tension spring 6 acts on the load-bearing rod 41 to help balance part of the load of the height adjustment mechanism 4. The vertical force transmitted by the load-bearing rod 41 is partially borne by the tension spring 6. The elastic deformation of the spring buffers the instantaneous impact force and reduces the vibration transmission to the patient's traumatic part; when the height adjustment mechanism 4 is subjected to lateral force, the deformation of the tension spring 6 can help the load-bearing rod 41 to reset, maintain the stability of the structure, expand the overall anti-slip contact area, and improve the stability in complex ground environments;

[0058] The wear-resistant plate 7 at the bottom of the curved plate 2 is made of polyurethane rubber and covers the area where the curved plate 2 may contact the ground. When touching the ground, the wear-resistant plate 7 contacts the ground before the curved plate 2. Its material properties absorb part of the impact force and reduce the direct wear of the curved plate 2. When the curved plate 2 rotates with the universal joint 36, the friction coefficient with the ground remains stable, enhancing the overall anti-slip effect. Its elastic properties can adapt to tiny bumps on the ground, preventing the curved plate 2 from directly hitting hard objects and causing damage, thereby ensuring the safety of the walker in emergency use.

[0059] Working principle: Before using the walker, adjust the height according to the patient's height: loosen the knob 48 of the height adjustment mechanism 4, drive the fastening bolt 46 to disengage the connecting rod 42, and press the spring telescopic pin 45 to make it exit the adjustment hole 44; push the force-bearing rod 2 43 to slide along the connecting rod 42, and at the same time, the force-bearing rod 1 41 slides in the load-bearing column 1 and squeezes the tension spring 6 until the spring telescopic pin 45 is aligned with the target adjustment hole 44 and pops out; tighten the knob 48 to make the fastening bolt 46 pass through the adjustment hole 44 and threadedly connect to the connecting rod 42 to complete the coarse height adjustment; push the locking pin 472 of the connecting assembly 47 to disengage the elastic sheet 473 from the engaging chamber 474, slide the connecting plate 471 to the position in the force-bearing shell 54, fine-tune until the legging mechanism 5 is adapted to the leg height, and then reinsert the locking pin 472 to complete the fixation;

[0060] When wearing, place the leg between the multiple straps 51 of the legging mechanism 5, pull the end of the strap 51 to pass through the Japanese-shaped ring 531, and adjust the tightness to fit the leg; adhere the Velcro 532 on the left side of the outer side of the strap 51 to the Velcro 532 on the left end of the inner side, and use the connecting belt 52 to make the multiple straps 51 form a surrounding binding; the mounting member 55 transmits the tension of the strap 51 to the load-bearing shell 54, ensuring that the connection between the legging mechanism 5 and the height adjustment mechanism 4 is stable;

[0061] During walking, the stable ground-touching mechanism 3 acts first: the patient's lower limbs drive the walking aid to move forward, the anti-skid strip 34 first contacts the ground, the ground reaction force pushes the guide rod 33 to retract into the cylindrical bin 31, and squeezes the high-pressure spring 32; the elastic deformation of the high-pressure spring 32 absorbs the impact force of touching the ground, and at the same time generates a reverse elastic force to make the anti-skid strip 34 tightly fit the ground, and the travel groove 35 limits the transverse displacement of the anti-skid strip 34;

[0062] On uneven ground, the retraction amount of each guide rod 33 changes with the difference in ground undulation, and the elastic force of the high-pressure spring 32 is adjusted respectively to ensure that the wear-resistant plate 7 at the bottom of the arc-shaped plate 2 and the anti-skid strip 34 jointly maintain support balance; the universal ball 361 of the universal assembly 36 rotates in the spherical rotating groove 363 of the mounting column 362, so that the arc-shaped plate 2 adjusts the angle with the patient's gait to avoid force jamming;

[0063] During weight bearing, the patient's weight is transmitted to the force-bearing shell 54 through the leg binding mechanism 5, and is transmitted to the force-bearing column 1 through the connecting plate 471, the second force rod 43, the connecting rod 42 and the first force rod 41; the force-bearing column 1 disperses the vertical force to the arc-shaped plate 2 through the universal ball 361, and then transmits the force to the ground through the anti-skid strip 34 and the wear-resistant plate 7; the elastic force of the tension spring 6 assists in balancing part of the load, buffers the instantaneous impact force, and reduces the vibration on the wound part;

[0064] When adjusting the direction, the multi-angle rotation of the universal ball 361 allows the arc-shaped plate 2 to fine-tune with the leg turning, and the frictional force between the anti-skid strip 34 and the ground prevents side slipping; the flexible material of the binding belt 51 adapts to the deformation when the leg rotates, the adhesive strength of the magic tape 532 ensures that the binding does not loosen, and the connecting belt 52 disperses the stress of a single binding belt 51;

[0065] After use, if the tightness needs to be adjusted, the magic tape 532 is torn off, the end of the binding belt 51 is pulled to adjust and then adhered; if the height needs to be changed, the initial adjustment steps are repeated, the anti-slip design of the knob 48 facilitates labor-saving operation, and the cooperation between the spring telescopic pin 45 and the adjustment hole 44 ensures the adjustment accuracy;

[0066] The high-pressure spring 32 of the stable ground-touching mechanism 3 cooperates with the universal assembly 36 to realize ground self-adaptation and impact buffering; the multi-stage adjustment and double locking of the height adjustment mechanism 4 adapt to different patients and ensure weight bearing stability; the flexible binding and rigid transmission of the leg binding mechanism 5 ensure reliable and comfortable fixation.

[0067] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A lower limb unilateral load-bearing adaptive stable trauma orthopedic walker, comprising a load-bearing column (1) and a curved plate (2), characterized in that: The bottom of the arc-shaped plate (2) is provided with a stable ground contact mechanism (3), and the stable ground contact mechanism (3) is used to make the patient more stable when using the device. The tops of the two bearing columns (1) are provided with a height adjustment mechanism (4), and the height adjustment mechanism (4) is used to adjust the height to adapt to patients of different heights. The top of the height adjustment mechanism (4) is provided with a leg binding mechanism (5), and the leg binding mechanism (5) is used to fix the device on the patient's legs. The stable ground contact mechanism (3) includes a plurality of cylindrical silos (31), and the plurality of cylindrical silos (31) are respectively fixedly connected to the four corners of the top of the arc plate (2). The interiors of the plurality of cylindrical silos (31) are fixedly connected with high-pressure springs (32), and the bottom ends of the plurality of high-pressure springs (32) are fixedly connected with force guide rods (33). The bottom ends of the two front force guide rods (33) and the two rear force guide rods (33) are fixedly connected with anti-slip strips (34). The front and rear sides of the bottom of the arc plate (2) are both provided with travel grooves (35). The sizes of the two anti-slip strips (34) and the two travel grooves (35) match each other. A universal assembly (36) is provided between the two load-bearing columns (1) and the arc plate (2).

2. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 1, characterized in that: The height adjustment mechanism (4) includes two force-bearing rods (41), the tops of the two force-bearing rods (41) are fixedly connected to connecting rods (42), the outsides of the two connecting rods (42) are slidably connected to force-bearing rods (43), the outsides of the two force-bearing rods (43) are equidistantly provided with adjustment holes (44), the tops of the outer sides of the two connecting rods (42) are provided with spring telescopic pins (45), the two spring telescopic pins (45) are respectively engaged in the insides of the two adjustment holes (44) at the tops, the outsides of the two force-bearing rods (43) are passed through by fastening bolts (46) through the bottom adjustment holes (44), the ends of the two fastening bolts (46) are respectively threadedly connected to the insides of the two connecting rods (42), and the tops of the two force-bearing rods (43) are provided with connecting components (47).

3. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 1, characterized in that: The legging mechanism (5) comprises a plurality of straps (51), the left and right ends of the plurality of straps (51) are fixedly connected to connecting straps (52), the front sides of the plurality of straps (51) are provided with adjustment components (53), the left and right sides of the two bottom straps (51) are provided with force-bearing shells (54), the four inner corners of the two force-bearing shells (54) are fixedly connected to mounting members (55), and the plurality of mounting members (55) on the left side and the plurality of mounting members (55) on the right side are fixedly connected to the left and right sides of the middle strap (51) and the left and right sides of the bottom strap (51), respectively.

4. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 1, characterized in that: The universal assembly (36) includes two universal balls (361), the two universal balls (361) are respectively fixedly connected to the bottom end of the load-bearing column (1), the left and right ends of the top of the arc plate (2) are both fixedly connected to mounting columns (362), the tops of the two mounting columns (362) are each provided with a spherical rotation groove (363), and the two universal balls (361) are respectively rotatably connected inside the two spherical rotation grooves (363).

5. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 2, characterized in that: The connecting assembly (47) includes two connecting plates (471), the two connecting plates (471) are respectively fixedly connected to the top ends of the two force-bearing rods (43), the top ends of the two connecting plates (471) are respectively vertically slidably connected to the insides of the two force-bearing shells (54), and the front and rear sides of the two connecting plates (471) are both provided with locking pins (472), and the two locking pins (472) respectively penetrate the front and rear sides of the two force-bearing shells (54).

6. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 5, characterized in that: The ends of the plurality of locking pins (472) are fixedly connected to elastic sheets (473), and the interiors of the two connecting plates (471) are provided with engaging chambers (474), and the plurality of elastic sheets (473) are respectively engaged in the interiors of the two engaging chambers (474).

7. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 3, characterized in that: The adjustment assembly (53) comprises a plurality of Japanese-shaped rings (531), wherein the plurality of Japanese-shaped rings (531) are respectively fixedly connected to one end of a plurality of straps (51), and the other ends of the plurality of straps (51) respectively pass through the interior of the plurality of Japanese-shaped rings (531), and the outer left ends and the inner left ends of the plurality of straps (51) are both fixedly connected with Velcro (532).

8. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 1, characterized in that: The height adjustment mechanism (4) further comprises two knobs (48), wherein the two knobs (48) are respectively fixedly connected to the outer ends of the two fastening bolts (46), and the outer surfaces of the two knobs (48) are both designed to be anti-slip.

9. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 2, characterized in that: The inner bottom ends of the two load-bearing columns (1) are fixedly connected with tension springs (6), the bottom ends of the two force-bearing rods (41) are respectively slidably connected to the inside of the two load-bearing columns (1), and the bottoms of the two force-bearing rods (41) are respectively fitted on the top ends of the two tension springs (6).

10. The lower limb unilateral load-bearing adaptive stabilization trauma orthopedic walker according to claim 1, characterized in that: A wear-resistant plate (7) is fixedly connected to the bottom of the arc-shaped plate (2), and the wear-resistant plate (7) is made of polyurethane rubber.

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