Lower limb walking aid

Abstract

A lower limb walking aid effectively solves the problems that an existing walking aid is large in size and inconvenient to carry. Comprising two containing shells, the two containing shells are opposite left and right, openings of the two containing shells are opposite, swing grooves are formed in the front ends and the rear ends of the containing shells correspondingly, left-right axial rotatable rotating shafts are arranged on the front sides and the rear sides in the containing shells correspondingly, supporting rods are arranged on the rotating shafts, and the upper ends of the supporting rods stretch out of the swing grooves and are provided with universal wheels; a rotary column located above the supporting rod is rotationally connected into the containing shell, swing rods are arranged on the rotary column, and the two swing rods are connected in a hinged mode. The device is simple in structure, novel in conception, convenient to use and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of lower limb rehabilitation equipment technology, and in particular to a lower limb walking aid. Background Technology

[0002] Some patients with lower limb fractures or lower limb surgery need to walk frequently during rehabilitation training to prevent lower limb muscle atrophy and improve balance. During walking rehabilitation, because the limbs have not fully recovered, some patients need walking aids to assist walking and avoid falls. Most existing lower limb walking aids are trolley-style, that is, a support block with wheels at the bottom and a handle at the top. Patients walk by holding the handle. However, this traditional walking aid has the following drawbacks: because it is necessary to maintain the patient's balance, the support block is designed to be relatively long to prevent the patient from tilting forward or backward when holding it. This results in a large overall size of the walking aid, which is inconvenient for patients to carry when going out or traveling by car, and takes up a lot of space when not in use. Utility Model Content

[0003] In view of the above situation and in order to make up for the shortcomings of the existing technology, the purpose of this utility model is to provide a lower limb walking aid that effectively solves the problem that the existing walking aids are large in size and inconvenient to carry.

[0004] The technical solution is that the present invention includes two receiving shells, which are opposite each other and have opposite openings. The front and rear ends of the receiving shells are respectively provided with swing grooves. The front and rear sides of the receiving shells are respectively provided with rotatable shafts with left and right axes. The shafts are provided with support rods. The upper ends of the support rods extend out of the swing grooves and are provided with casters. A rotating column located above the support rods is rotatably connected inside the receiving shells. The rotating column is provided with swing rods, and the two swing rods are hinged together.

[0005] Preferably, the rotating shaft is rotatably connected to the housing, the free end of the rotating shaft is coaxially provided with a gear, the housing is provided with a sliding plate between two support rods on the same side and which can move up and down, and the lower end of the sliding plate is provided with a rack between the two gears and meshing with the gears.

[0006] The slide plate is slidably connected to the housing shell, the swing arm has a clearance groove, and the slide plate has a post that can be inserted into the clearance groove.

[0007] Preferably, the receiving shell has two limiting holes, the front end of the rotating column is coaxially provided with a cylinder, a connecting column is coaxially slidably connected inside the cylinder, the front end of the connecting column is provided with a connecting plate, and the connecting plate is provided with a limiting column that can be inserted into the limiting hole.

[0008] Preferably, the rear end of the connecting column is connected to the cylinder via a spring.

[0009] Preferably, the rack is provided with a reset plate, and the lower end of the reset plate is connected to the receiving shell via a tension spring.

[0010] Preferably, the upper end of the housing is provided with a handle.

[0011] Preferably, the two swing arms are positioned opposite each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are: it can be quickly unfolded to assist the patient's lower limbs in walking, helping the patient to walk steadily, and can be quickly folded when not in use to reduce the size, making it convenient for patients to carry when going out and reducing the floor space occupied. Compared with traditional trolley-type walking aids, it can be quickly unfolded or folded. Attached Figure Description

[0013] Figure 1 This is the main view axonometric drawing of this utility model.

[0014] Figure 2 This is a full-section left-side axonometric drawing of this utility model.

[0015] Figure 3 This is a full-section right-view axonometric drawing of this utility model.

[0016] Figure 4 This is a full-section main view axonometric drawing of this utility model.

[0017] Figure 5 This is a full-section top-view axonometric drawing of this utility model.

[0018] Figure 6 This is a utility model Figure 2 A magnified view of A in the middle.

[0019] Figure label:

[0020] 1. Housing; 2. Swing groove; 3. Shaft; 4. Support rod; 5. Caster wheel; 6. Rotary column; 7. Swing rod; 8. Gear; 9. Slide plate; 10. Rack; 11. Clearance groove; 12. Insert post; 13. Limiting hole; 14. Cylinder; 15. Connecting column; 16. Connecting plate; 17. Limiting post; 18. Spring; 19. Reset plate; 20. Tension spring. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the implementations of the base model disclosed below.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Depend on Figures 1 to 6 The device includes two housing shells 1, which are opposite each other and have opposite openings. Each housing shell 1 has a swing groove 2 at its front and rear ends. Each housing shell 1 has a rotatable pivot 3 on its front and rear sides. Each pivot 3 has a support rod 4 on its pivot 3. The upper end of the support rod 4 extends out of the swing groove 2 and is equipped with a universal wheel 5. A pivot column 6 located above the support rod 4 is rotatably connected inside the housing shell 1. The pivot column 6 has a swing arm 7 on its pivot arm 7, and the two swing arms 7 are hinged together.

[0025] In order to make the rotating shaft 3 rotate, the rotating shaft 3 is rotatably connected to the housing 1. The free end of the rotating shaft 3 is coaxially provided with a gear 8. The housing 1 is provided with a sliding plate 9 located between two support rods 4 on the same side and can move up and down. The lower end of the sliding plate 9 is provided with a rack 10 located between the two gears 8 and meshing with the gears 8.

[0026] In order to enable the slide plate 9 to move up and down, the slide plate 9 is slidably connected to the housing shell 1, the swing rod 7 is provided with a relief groove 11, and the slide plate 9 is provided with a post 12 that is inserted into the relief groove 11.

[0027] To facilitate the fixing and limiting of the swing arm 7, two limiting holes 13 are provided on the housing 1. A cylinder 14 is coaxially provided at the front end of the rotating column 6. A connecting column 15 is coaxially slidably connected inside the cylinder 14. A connecting plate 16 is provided at the front end of the connecting column 15. A limiting post 17 that can be inserted into the limiting hole 13 is provided on the connecting plate 16.

[0028] To facilitate the repositioning of the connecting plate 16, the rear end of the connecting column 15 is connected to the cylinder 14 via a spring 18.

[0029] To facilitate the reset of the rack 10, a reset plate 19 is provided on the rack 10, and the lower end of the reset plate 19 is connected to the housing 1 via a tension spring 20.

[0030] To facilitate patient gripping, the upper end of the housing 1 is provided with a handle.

[0031] To facilitate the hinge connection of the two swing arms 7, the two swing arms 7 are positioned opposite each other.

[0032] When this utility model is in use and needs to be unfolded for walking assistance, first pull the two connecting plates 16 outwards. The two connecting plates 16 drive the two limiting posts 17 to move forward. After moving forward a certain distance, they are pulled out from the corresponding limiting holes 13, releasing the fixed limitation on the two rotating posts 6. At this time, the two receiving shells 1 can be pulled to both sides. The two receiving shells 1 move in opposite directions. Since the swing rod 7 is hinged to the receiving shell 1, the two swing rods 7 also swing when the two receiving shells 1 move in opposite directions. The two swing rods 7 gradually swing from the original "V" shape. When the swing arm 7 swings upward, it drives the two slide plates 9 to move upward through the clearance groove 11 and the insertion post 12. The slide plates 9 drive the rack 10 at the lower end to move upward. The rack 10 moves upward and drives the two gears 8 to rotate. The front gear 8 drives the front support rod 4 to swing forward, and the rear gear 8 drives the rear support rod 4 to swing backward. When the two swing arms 7 swing completely to form an "I" shape, the front and rear support rods 4 are driven to swing to be perpendicular to the housing 1. At this time, the caster wheel 5 contacts the ground.

[0033] At the same time, the rotating column 6 drives the cylinder 14, connecting plate 16, and limiting column 17 to swing to the corresponding limiting hole 13. At this time, due to the rearward restoring force of the spring 18, the connecting column 15 moves backward inside the cylinder 14, thereby driving the limiting column 17 to move backward and insert into the corresponding limiting hole 13 to achieve fixed limiting again, preventing the swing arm 7 from swinging and causing wobbling during the patient's push of the walking aid. When it is time to fold and store or carry after use, the connecting plate 16 is pulled forward again to move the limiting column 17 forward to release the fixed limiting again. Then, the two receiving shells 1 are moved to the middle, and the two receiving shells 1 move relative to each other, while the two swing arms 7 are folded again. At this time, due to the downward restoring force of the tension spring 20, the rack 10 and slide plate 9 move downward, thereby driving the support rod 4 to swing upward. After swinging a certain angle, it returns to the initial position. At this time, the limiting column 17 is re-inserted into the corresponding limiting hole 13 to achieve fixed limiting, thus completing the folding, reducing the footprint and making it easier to carry.

[0034] Compared with the prior art, the beneficial effects of this utility model are: the support rod, casters, swing rod, etc. can be quickly unfolded when in use to assist the patient's lower limbs in walking and help the patient walk steadily. At the same time, it can be quickly folded when not in use to reduce the size, making it convenient for patients to carry when going out or to reduce the floor space occupied. Compared with the traditional trolley-style walking aid, it can be quickly unfolded or folded. This structure is simple, novel in design, convenient to use, and highly practical.

[0035] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model.

[0036] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A lower limb walking aid, comprising two receiving shells (1), characterized in that, Two housing shells (1) are opposite each other and their openings are opposite each other. Swing grooves (2) are provided at the front and rear ends of the housing shells (1). Rotary shafts (3) that can rotate in the left and right directions are provided on the front and rear sides of the housing shells (1). Support rods (4) are provided on the rotating shafts (3). The upper end of the support rods (4) extends out of the swing grooves (2) and is provided with casters (5). A rotating column (6) located above the support rods (4) is rotatably connected inside the housing shells (1). A swing rod (7) is provided on the rotating column (6). The two swing rods (7) are hinged together.

2. The lower limb walking aid according to claim 1, characterized in that, The rotating shaft (3) is rotatably connected to the housing (1). The free end of the rotating shaft (3) is coaxially provided with a gear (8). The housing (1) is provided with a sliding plate (9) between two support rods (4) on the same side and can move up and down. The lower end of the sliding plate (9) is provided with a rack (10) between the two gears (8) and meshing with the gears (8).

3. A lower limb walking aid according to claim 2, characterized in that, The slide plate (9) is slidably connected to the housing (1), and the swing rod (7) is provided with a relief groove (11). The slide plate (9) is provided with a plug (12) inserted into the relief groove (11).

4. A lower limb walking aid according to claim 1, characterized in that, The housing (1) has two limiting holes (13), and the front end of the rotating column (6) is coaxially provided with a cylinder (14). A connecting column (15) is coaxially slidably connected inside the cylinder (14). A connecting plate (16) is provided at the front end of the connecting column (15), and a limiting post (17) that can be inserted into the limiting hole (13) is provided on the connecting plate (16).

5. A lower limb walking aid according to claim 4, characterized in that, The rear end of the connecting column (15) is connected to the cylinder (14) via a spring (18).

6. A lower limb walking aid according to claim 2, characterized in that, The rack (10) is provided with a reset plate (19), and the lower end of the reset plate (19) is connected to the housing (1) via a tension spring (20).

7. A lower limb walking aid according to claim 6, characterized in that, The upper end of the housing (1) is provided with a handle.

8. A lower limb walking aid according to claim 1, characterized in that, The two swing arms (7) are positioned opposite each other.

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