A lower limb training rehabilitation device for orthopedic care

Abstract

The utility model provides a kind of lower limb training rehabilitation device for orthopedics nursing, belong to orthopedics rehabilitation nursing instrument technical field, it includes exercise device main body and be used to support the rotating support of exercise device main body, rotating support is provided with adjusting mechanism, adjusting mechanism includes coarse adjustment subassembly and fine adjustment subassembly;Coarse adjustment subassembly can be positioned with multiple gears by the bottom plate of rotating support, realize the wide range quick adjustment of rotating support inclination angle;Fine adjustment subassembly is transmissionally connected between the support end of coarse adjustment subassembly and rotating support, can be based on the gear of coarse adjustment subassembly locking, drive rotating support to carry out small range continuous stepless angle fine adjustment.The utility model is through the cooperation of coarse adjustment subassembly and fine adjustment subassembly, solved the problem that angle adjusting mechanism cannot simultaneously consider adjustment efficiency and adjustment accuracy in prior art, with the advantages of simple operation, compact structure, high reliability, can be widely applied to orthopedics postoperative rehabilitation, nerve injury lower limb function recovery and long-term bedridden patient nursing etc.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic rehabilitation and nursing equipment technology, and in particular to a lower limb training and rehabilitation device for orthopedic nursing. Background Technology

[0002] In clinical settings such as post-orthopedic surgery rehabilitation, recovery of lower limb motor dysfunction caused by nerve injury, and long-term bedridden patient care, lower limb training and rehabilitation devices are core rehabilitation equipment for maintaining joint range of motion, promoting local blood circulation, and delaying muscle atrophy. These devices typically include a training mechanism for the patient to step on with both feet, and a support structure located below the training mechanism to adjust its tilt angle. By changing the tilt angle of the support structure, caregivers can adjust the orientation and height of the training mechanism to suit the individualized rehabilitation needs of patients of different heights and at different stages of their illness.

[0003] Currently, the angle adjustment mechanisms of existing lower limb training and rehabilitation devices mainly employ two technical solutions. One solution uses a stepped adjustment structure with pin positioning or snap-fit ​​connections. Caregivers can quickly switch between levels with a single operation, resulting in high adjustment efficiency. However, limited by the number of levels, it can only achieve discrete angle adjustments, lacking sufficient precision and unable to perform continuous stepless fine-tuning. This makes it difficult to accurately match the differences in leg length and joint mobility thresholds among different patients, easily leading to secondary injuries from excessively large angles or weakening the training effect from insufficient angles. The other solution uses a stepless adjustment structure with a lead screw or worm gear, offering advantages of continuous adjustment and high precision. It can precisely control the flexion and extension angles of the lower limbs. However, the adjustment stroke is linearly related to the amount of operation. When adjusting over a large angle range, caregivers need to repeatedly turn the screw multiple times to complete the adjustment, making the process cumbersome and slow, significantly increasing operation time and workload.

[0004] Therefore, the angle adjustment mechanism of existing lower limb training and rehabilitation devices cannot balance adjustment efficiency and adjustment accuracy, which restricts the improvement of the overall performance of this type of equipment.

[0005] Therefore, it is necessary to propose a lower limb training and rehabilitation device for orthopedic nursing to solve the above problems. Utility Model Content

[0006] This application provides a lower limb training and rehabilitation device for orthopedic nursing. In order to improve the technical bottleneck that the angle adjustment structure of current lower limb training and rehabilitation devices for orthopedic nursing generally suffers from the problem of "fast but not precise, precise but not fast", it is impossible to simultaneously take into account the adjustment efficiency and adjustment accuracy, which restricts the improvement of the overall performance of this type of device.

[0007] This application provides a lower limb training and rehabilitation device for orthopedic nursing, including a main body of the exercise device and a rotating bracket for supporting the main body of the exercise device. The rotating bracket is provided with an adjustment mechanism, which includes a coarse adjustment component and a fine adjustment component. The coarse adjustment component can be locked and positioned at multiple levels along the base plate of the rotating bracket to achieve a wide range of rapid adjustment of the tilt angle of the rotating bracket. The fine adjustment component is driven between the coarse adjustment component and the support end of the rotating bracket, and can drive the rotating bracket to perform small-range continuous stepless angle fine adjustment based on the locked position of the coarse adjustment component.

[0008] The technical solution described above in this application embodiment has at least the following technical effects: by setting a coarse adjustment component and a fine adjustment component on the rotating bracket, the coarse adjustment component is positioned by multiple locking positions along the base plate to achieve a wide range of rapid adjustment of the tilt angle. The fine adjustment component is driven and connected between the coarse adjustment component and the support end of the rotating bracket, and performs small-range continuous stepless angle fine adjustment based on the locked position of the coarse adjustment component. This solves the problem that the angle adjustment mechanism in the prior art cannot simultaneously take into account the adjustment efficiency and adjustment accuracy, so that nursing staff can complete a wide range of angle switching within a few seconds, and can also make precise fine adjustments on this basis to meet the personalized rehabilitation needs of different patients.

[0009] In some embodiments, the rotating support includes a base plate; a rotating frame rotatably mounted on the base plate; and a support frame rotatably mounted on the rotating frame, the support frame being fixedly connected to the main body of the exercise device.

[0010] In some embodiments, a first adjusting block is fixedly disposed on the output shaft of the support frame; a second adjusting block is fixedly disposed on the base plate, and the first adjusting block and the second adjusting block are connected by transmission.

[0011] In some embodiments, the coarse adjustment component includes: a plurality of fixing slots, each fixing slot being arrayed along both ends of the base plate of the rotating bracket; and a limiting strip, the limiting strip being fixedly disposed on a second adjusting block on the base plate, the limiting strip selectively engaging into any of the fixing slots to fix the relative position of the second adjusting block and the base plate.

[0012] In some embodiments, the fine-tuning assembly includes a lead screw rotatably mounted on a second adjusting block on the base plate of the rotating bracket. The output end of the lead screw is connected to a first adjusting block, which is fixedly mounted on the output shaft of the support frame of the rotating bracket. When the lead screw rotates, it drives the first adjusting block to translate relative to the second adjusting block, thereby changing the distance between the first adjusting block and the second adjusting block.

[0013] In some embodiments, a rotating handle is fixedly provided at the end of the lead screw away from the first adjusting block, and the rotating handle is used for the operator to manually turn the lead screw.

[0014] In some embodiments, the exercise device body includes a foot pedal training mechanism for the patient to step on with both feet to perform lower limb flexion and extension training.

[0015] The beneficial effects of this utility model are as follows: by setting a coarse adjustment component and a fine adjustment component on the rotating bracket, the coarse adjustment component is positioned by multiple locking positions along the base plate, realizing a wide range of rapid adjustment of the tilt angle. The fine adjustment component is driven and connected between the coarse adjustment component and the support end of the rotating bracket, and performs small-range continuous stepless angle fine adjustment based on the locked position of the coarse adjustment component. This solves the problem that the angle adjustment mechanism in the prior art cannot simultaneously take into account the adjustment efficiency and adjustment accuracy. It enables nursing staff to complete a wide range of angle switching in a few seconds, and on this basis, perform precise fine adjustment to meet the personalized rehabilitation needs of different patients. Attached Figure Description

[0016] Figure 1 Exploded view of the lower limb training and rehabilitation device for orthopedic nursing provided in the embodiments of this application. Figure 1 ; Figure 2 Exploded view of the lower limb training and rehabilitation device for orthopedic nursing provided in the embodiments of this application. Figure 2 ; Figure 3 A schematic diagram of the main structure of the lower limb training and rehabilitation device for orthopedic nursing provided in an embodiment of this application; The following are the labeling elements in the figure: 1. Main body of the exercise device; 2. Rotating support; 21. Adjustment mechanism; 211. Coarse adjustment component; 2111. Second adjustment block; 2112. Limiting bar; 212. Fine adjustment component; 2121. First adjustment block; 2122. Lead screw; 2123. Rotating handle; 22. Base plate; 221. Fixing groove; 23. Rotating frame; 24. Support frame. Detailed Implementation

[0017] Based on this, in order to improve the technical bottleneck that the angle adjustment structure of current orthopedic nursing lower limb training and rehabilitation devices generally suffers from "fast but not precise, precise but not fast", and cannot simultaneously take into account the adjustment efficiency and adjustment accuracy, thus restricting the improvement of the overall performance of this type of device, the embodiments of this application provide the following solution.

[0018] Please refer to the following: Figures 1 to 3This embodiment provides a lower limb training and rehabilitation device for orthopedic nursing. The device includes an exercise device body 1 and a rotating support 2. The rotating support 2 is disposed below the exercise device body 1 and is used to support the exercise device body 1 and adjust the tilt angle of the exercise device body 1.

[0019] The main body 1 of the exercise device is a rehabilitation equipment unit for patients to perform lower limb training. The main body 1 includes a foot pedal training mechanism, which is used by the patient to step on the pedal with both feet to complete lower limb flexion and extension movements through active or passive means, so as to maintain joint range of motion and promote local blood circulation. The tilt angle of the main body 1 determines the orientation and height of the foot pedal training mechanism. The larger the tilt angle, the greater the range of flexion and extension of the patient's lower limbs and the higher the training intensity.

[0020] The rotating bracket 2 is the core load-bearing and adjustment component of this utility model. The rotating bracket 2 includes a base plate 22, a rotating frame 23, and a support frame 24. The base plate 22 is a rectangular flat plate structure, placed on the ground or bed surface, providing stable support for the entire device. The rotating frame 23 is rotatably mounted on the base plate 22. Specifically, the rotating frame 23 is hinged to one end of the base plate 22 via a hinge shaft, and the rotating frame 23 can rotate around the hinge shaft within a range of 0° to 75°. The support frame 24 is rotatably mounted on the rotating frame 23. Specifically, the support frame 24 is hinged to the middle area of ​​the rotating frame 23 via a pivot. The upper end of the support frame 24 is fixedly connected to the main body 1 of the exercise device. For example, the support frame 24 and the main body 1 of the exercise device are detachably connected by bolts, facilitating the disassembly, transportation, and storage of the device, and also allowing the main body 1 of the exercise device to be replaced according to different training needs. The output shaft of the support frame 24 extends outward along the hinge center of the support frame 24, and a first adjusting block 2121 is fixedly mounted on the output shaft. A second adjusting block 2111 is fixedly mounted on the base plate 22. The first adjusting block 2121 and the second adjusting block 2111 are connected by a transmission, and the first adjusting block 2121 and the second adjusting block 2111 are spaced apart along the length direction of the base plate 22. The first adjusting block 2121 is located on the side of the second adjusting block 2111 near the hinge point between the rotating frame 23 and the base plate 22.

[0021] The rotating bracket 2 is equipped with an adjustment mechanism 21, which is the core mechanism for angle adjustment in this invention. The adjustment mechanism 21 includes a coarse adjustment component 211 and a fine adjustment component 212. The coarse adjustment component 211 is used to achieve a wide-range, rapid adjustment of the tilt angle of the rotating bracket 2. The fine adjustment component 212 is used to drive the rotating bracket 2 to perform small-range, continuous, stepless angle fine adjustments based on the setting locked by the coarse adjustment component 211. The coarse adjustment component 211 and the fine adjustment component 212 work together to form a progressive angle adjustment mode of "coarse first, then fine".

[0022] The coarse adjustment component 211 includes a fixing groove 221 and a limiting strip 2112. Multiple fixing grooves 221 are arranged in an array along both ends of the base plate 22 of the rotating bracket 2. In this embodiment, the fixing grooves 221 are evenly spaced along the length of the base plate 22, with a spacing of 8mm to 25mm between adjacent fixing grooves, preferably 15mm. The limiting strip 2112 is fixedly mounted on the second adjusting block 2111 on the base plate 22. The limiting strip 2112 is a long, strip-shaped plate structure, and its width matches the width of the fixing groove 221. Both ends of the limiting strip 2112 overlap the opposite edges of the base plate 22. The limiting strip 2112 selectively engages with any of the fixing grooves 221 to fix the relative position of the second adjusting block 2111 and the base plate 22. When coarse angle adjustment is required, the caregiver lifts the limiting strip 2112 from the current fixing slot 221, moves the second adjusting block 2111 to the target position along the length of the base plate 22, and then inserts the limiting strip 2112 into the corresponding fixing slot 221, thus completing one coarse adjustment operation. Since the fixing slots 221 are arranged in an array along the base plate 22, the limiting strip 2112 being inserted into different positions of the fixing slots 221 corresponds to different tilt angles of the rotating frame 23, thereby achieving rapid, segmented adjustment. The limiting strip 2112 adopts a long strip-shaped plate structure. The two ends of the limiting strip 2112 overlap the opposite edges of the base plate 22, so that the limiting strip 2112 is subjected to balanced force after being inserted into the fixing groove 221, avoiding the risk of deflection or dislodgement caused by unilateral force, improving the structural stability after coarse adjustment and positioning. Moreover, the plate structure has a larger contact area and higher bending strength than the cylindrical pin, and is not easy to deform or break when subjected to reciprocating loads during patient training.

[0023] The fine-tuning assembly 212 includes a lead screw 2122. The lead screw 2122 is rotatably mounted on a second adjusting block 2111 on the base plate 22 of the rotating bracket 2. Specifically, the second adjusting block 2111 has a threaded through hole, through which the lead screw 2122 passes and is threadedly engaged. The output end of the lead screw 2122 is drive-connected to the first adjusting block 2121. Specifically, one end of the lead screw 2122 is rotatably connected to the first adjusting block 2121 via a bearing, allowing the lead screw 2122 to rotate freely relative to the first adjusting block 2121 while transmitting axial displacement to the first adjusting block 2121. The first adjusting block 2121 is fixedly mounted on the output shaft of the support frame 24 of the rotating bracket 2. When the lead screw 2122 rotates, it drives the first adjusting block 2121 to translate relative to the second adjusting block 2111, thereby changing the distance between the first adjusting block 2121 and the second adjusting block 2111. Since the first adjusting block 2121 is fixed to the output shaft of the support frame 24, and the support frame 24 is hinged to the rotating frame 23, the displacement of the first adjusting block 2121 causes the support frame 24 to rotate slightly around its hinge point with the rotating frame 23, thereby continuously changing the tilt angle of the rotating frame 23 and achieving fine-tuning of the angle. A rotating handle 2123 is fixedly provided at the end of the lead screw 2122 away from the first adjusting block 2121. The rotating handle 2123 is used for the operator to manually turn the lead screw 2122. The rotating handle 2123 is located on the side of the device, and the operating position is ergonomic, allowing nursing staff to complete the fine-tuning operation without bending over or leaning forward.

[0024] After coarse adjustment is completed and the limiting strip 2112 is engaged with the target fixing groove 221, the caregiver turns the rotating handle 2123, causing the lead screw 2122 to rotate. Since the lead screw 2122 is threadedly engaged with the second adjusting block 2111, and the second adjusting block 2111 is locked to the base plate 22 by the limiting strip 2112, the rotation of the lead screw 2122 is converted into axial translation, thereby pushing or pulling the first adjusting block 2121 relative to the second adjusting block 2111. The threaded engagement between the lead screw 2122 and the second adjusting block 2111 has a self-locking characteristic; after adjustment, the lead screw 2122 will not automatically retract under axial load, maintaining the adjusted angle stability without the need for an additional locking mechanism.

[0025] The first adjusting block 2121 and the second adjusting block 2111 are spaced apart along the length of the base plate 22, with the first adjusting block 2121 located on the side near the hinge. This arrangement maximizes the adjusting lever arm, allowing even a small linear displacement of the first adjusting block 2121 to be amplified by the lever effect of the support frame 24 and the rotating frame 23, resulting in a larger angular change at the end of the rotating frame 23. This improves the adjusting sensitivity and ease of operation. For coarse adjustment, the distance between the two adjusting blocks is changed by altering the engagement position of the second adjusting block 2111. For fine adjustment, the distance between the two adjusting blocks is continuously adjusted by the lead screw 2122. Both levels of adjustment share the same pair of adjusting blocks, resulting in a compact structure and high component reuse rate.

[0026] The gear spacing of the coarse adjustment component 211 complements the adjustment stroke of the fine adjustment component 212. The spacing between adjacent fixing slots 221 is 8mm to 25mm, and the lead screw stroke of the fine adjustment component 212 covers this spacing range, ensuring that there is no adjustment blind spot between the frame positioning provided by the coarse adjustment and the continuous intermediate angles covered by the fine adjustment, thus achieving continuous coverage of the full angle range.

[0027] The entire adjustment mechanism 21 adopts a purely mechanical structure, without electrical components or hydraulic and pneumatic parts. It requires no power supply and can be used normally in wards or outdoor settings without power. It is also reliable in structure and has low maintenance costs. The operation interfaces of the coarse adjustment component 211 and the fine adjustment component 212 are independent of each other. The insertion and removal operation of the limit bar 2112 and the turning operation of the rotating handle 2123 do not interfere with each other. Nursing staff can operate according to the fixed process of "coarse first, then fine" without switching tools or adjusting posture. The operation process is highly standardized, which is convenient for clinical training and promotion.

[0028] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lower limb training and rehabilitation device for orthopedic nursing, comprising a main body (1) of the exercise device and a rotating support (2) for supporting the main body (1), characterized in that: The rotating bracket (2) is provided with an adjustment mechanism (21), which includes a coarse adjustment component (211) and a fine adjustment component (212). The coarse adjustment component (211) can be positioned in multiple positions along the base plate (22) of the rotating bracket (2) to achieve a wide range of rapid adjustment of the tilt angle of the rotating bracket (2). The fine adjustment component (212) is connected between the coarse adjustment component (211) and the support end of the rotating bracket (2). Based on the gear locked by the coarse adjustment component (211), it can drive the rotating bracket (2) to perform small-range continuous stepless angle fine adjustment.

2. The lower limb training and rehabilitation device for orthopedic nursing according to claim 1, characterized in that: The rotating support (2) includes a base plate (22); A rotating frame (23) is rotatably mounted on the base plate (22); The support frame (24) is rotatably mounted on the rotating frame (23) and is fixedly connected to the main body (1) of the exercise device.

3. The lower limb training and rehabilitation device for orthopedic nursing according to claim 2, characterized in that: A first adjusting block (2121) is fixedly installed on the output shaft of the support frame (24); a second adjusting block (2111) is fixedly installed on the base plate (22), and the first adjusting block (2121) and the second adjusting block (2111) are connected by transmission.

4. The lower limb training and rehabilitation device for orthopedic nursing according to claim 3, characterized in that: The coarse adjustment component (211) includes: a plurality of fixing slots (221), each fixing slot (221) being arrayed along both ends of the base plate (22) of the rotating bracket (2); a limiting strip (2112), the limiting strip (2112) being fixedly disposed on a second adjusting block (2111) on the base plate (22), the limiting strip (2112) being selectively engaged in any of the fixing slots (221) to fix the relative position of the second adjusting block (2111) and the base plate (22).

5. The lower limb training and rehabilitation device for orthopedic nursing according to claim 4, characterized in that: The fine adjustment assembly (212) includes a lead screw (2122), which is rotatably mounted on a second adjusting block (2111) on the base plate (22) of the rotating bracket (2). The output end of the lead screw (2122) is connected to a first adjusting block (2121) in a transmission connection. The first adjusting block (2121) is fixedly mounted on the output shaft of the support frame (24) of the rotating bracket (2). When the lead screw (2122) rotates, it drives the first adjusting block (2121) to translate relative to the second adjusting block (2111) to change the distance between the first adjusting block (2121) and the second adjusting block (2111).

6. The lower limb training and rehabilitation device for orthopedic nursing according to claim 5, characterized in that: A rotating handle (2123) is fixedly provided at the end of the lead screw (2122) away from the first adjusting block (2121). The rotating handle (2123) is used for the operator to manually turn the lead screw (2122).

7. The lower limb training and rehabilitation device for orthopedic nursing according to claim 1, characterized in that: The main body (1) of the exercise device includes a foot pedal training mechanism, which is used for patients to step on the pedal with both feet to perform lower limb flexion and extension training.

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