Lower limb rehabilitation walking aid

Abstract

The utility model discloses a lower limbs rehabilitation walking aid, including two supports, two supports are opposite to set up to left and right, two supports front portion is connected through crosspiece, and the support includes two vertical setting support rod and a horizontal setting hand support rod, and hand support rod both ends are fixedly connected with two support rods respectively, and the support rod bottom is connected with the trundle, and the trundle includes the support leg, and the support leg bottom is vertically equipped with the slide hole, and the slide hole is equipped with the sliding part in the adaptation, and the sliding part bottom is equipped with the ball groove, and the ball groove is equipped with the ball bearing in the matching, and the sliding part upper surface is fixedly connected with the compression spring, and the top of compression spring is fixedly connected with the lower surface of the top of slide hole, and the bottom edge place of slide hole is circumferentially equipped with the limit ring, and the inner diameter of limit ring is less than the outer diameter of sliding part and is greater than the diameter of ball bearing, and the compression spring is arranged between sliding part and support leg, thereby realizing that sliding part and ball bearing will be compressed into the slide hole when user uses arm to support walking aid, and the purpose that prevents walking aid from sliding is achieved.

Description

Technical Field

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

[0002] Elderly people who have weakened muscle strength, decreased balance, and difficulty moving alone, as well as patients with lower limb injuries who have difficulty moving, often face problems such as unstable gait and easy falls. Lower limb rehabilitation walking aids can help support body weight, maintain balance, effectively reduce the risk of falls, assist in lower limb function training, and help users safely complete daily walking and rehabilitation training.

[0003] Traditional walking aids are designed to avoid the burden on users with limited strength, requiring them to lift the aid with every step. Wheels are typically installed at the bottom of the walking aid, allowing users to move it by pushing it and using the wheels to slide. However, due to lower limb mobility issues, users need to use their arms to support the walking aid when moving their legs to reduce the strain on their body. This can create a safety hazard, as the wheels can slip when the user presses the walking aid, potentially causing a fall and serious injury. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the background art where, when a user needs to move their lower limbs and use their arms to support the walker, the bottom casters of the walker will slip, creating a safety hazard, by setting a compression spring between the slider and the support leg.

[0005] The specific technical solution of this utility model is as follows: A lower limb rehabilitation walking aid includes two supports arranged opposite each other. The front of the two supports is connected by a crossbar. Each support includes two vertically arranged support rods and a horizontally arranged hand support rod. The two ends of the hand support rod are fixedly connected to the two support rods respectively. Casters are connected to the bottom of the support rods. The casters include feet. The bottom of the feet has a vertical sliding hole. A sliding element is adapted in the sliding hole. The bottom of the sliding element has a ball groove. A ball is fitted in the ball groove. A compression spring is fixedly connected to the upper surface of the sliding element. The top of the compression spring is fixedly connected to the lower surface of the top of the sliding hole. A limiting ring is circumferentially provided at the bottom edge of the sliding hole. The inner diameter of the limiting ring is smaller than the outer diameter of the sliding element and larger than the diameter of the ball.

[0006] Furthermore, a guide hole is provided at the top of the sliding hole, and a guide rod adapted to the guide hole is provided at the top of the sliding component, with a compression spring sleeved on the guide rod.

[0007] Furthermore, the support leg is a truncated cone with a base radius greater than the top radius.

[0008] Furthermore, a threaded rod is fixedly connected to the top of the support leg, and a threaded hole matching the threaded rod is vertically provided on the lower surface of the support rod. The support rod and the support leg are connected by threaded engagement between the threaded rod and the threaded hole.

[0009] Furthermore, a screw-on component is provided at the top of the support leg, and a threaded rod is fixedly connected to the top of the screw-on component. The outer surface of the screw-on component has opposite side planes.

[0010] Furthermore, rubber pads are bonded to the bottom of the support legs, and the ball bearings are made of rubber.

[0011] Furthermore, there are two crossbars, one at the top and one at the bottom, with each end of the crossbar fixedly connected to the support rods at the front of the two brackets.

[0012] Furthermore, the two support rods at the front are slidably connected to a backrest plate. The backrest plate has sleeves that are adapted to the support rods fixed at both ends. The sleeves are fitted onto the support rods. The backrest plate is slidably connected to the support rods through the sliding fit between the sleeves and the support rods. The sleeves are provided with positioning holes, and the positioning holes are equipped with positioning bolts.

[0013] Furthermore, a support rod is fixedly connected between the two support rods of the bracket. The support rod is located below the hand support rod. A seat plate is rotatably connected between the support rods of the two brackets. The seat plate is fixedly provided with snap-fit ​​parts at both ends. The front of the snap-fit ​​part is provided with a snap groove that matches the support rod, and the rear of the snap-fit ​​part is provided with a positioning groove that matches the support rod.

[0014] Furthermore, the hand support pole is equipped with an anti-slip sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When using the walker, the user holds the hand support bar with both hands. When moving the lower limbs, the user presses down on the hand support bar with their hands. The compression spring contracts, pressing the sliding component and ball bearings into the sliding hole. At this time, the bottom surface of the support foot is in contact with the ground, stabilizing the position of the walker and preventing it from sliding. After the user moves the lower limbs, the user releases the pressure on the walker with their arms. During the recovery process of the compression spring, it pushes the sliding component and ball bearings to the bottom of the sliding hole, making the ball bearings contact with the ground. The user can then push the walker to move it easily a distance. The user can then repeat the above steps to complete the walking training for lower limb rehabilitation. By setting a compression spring between the sliding component and the support foot, the safety and convenience of using the walker are improved, avoiding potential safety hazards during use and improving the rehabilitation effect. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the front structure of the backrest and seat in use in the embodiment of this utility model; Figure 3 This is a three-dimensional structural diagram of the bottom of the caster when the ball bearing contacts the ground in an embodiment of this utility model; Figure 4 This is a three-dimensional structural diagram of the bottom of the caster when the ball bearings are retracted into the sliding hole in an embodiment of this utility model; Figure 5 This is a partial cross-sectional view of the caster in an embodiment of the present utility model; Figure 6 This is a three-dimensional structural diagram of the two supports in an embodiment of the present utility model; Figure 7 This is a three-dimensional structural diagram of the backrest plate in an embodiment of the present utility model; Figure 8 This is a three-dimensional structural diagram of the base plate in an embodiment of the present utility model; Figure label: 1. Bracket; 11. Support rod; 111. Threaded hole; 12. Hand support rod; 121. Anti-slip sleeve; 13. Support rod; 2. Crossbar; 3. Casters; 31. Support feet; 311. Sliding holes; 312. Limiting rings; 313. Guide holes; 314. Tightening parts; 315. Opposite side planes; 32. Sliding parts; 321. Ball bearings; 322. Guide rods; 33. Compression springs; 34. Threaded rods; 4. Backrest plate; 41. Sleeve; 42. Positioning hole; 43. Positioning bolt; 5. Seat plate; 51. Snap-fit ​​component; 511. Snap-fit ​​slot; 512. Positioning slot. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0018] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "top," and "bottom," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] See Figures 1 to 8This embodiment discloses a lower limb rehabilitation walking aid, including two supports 1, which are arranged opposite each other on the left and right sides. The front of the two supports 1 are connected by a crossbar 2. Each support 1 includes two vertically arranged support rods 11 and a horizontally arranged hand support rod 12. The two ends of the hand support rod 12 are fixedly connected to the two support rods 11 respectively. It can be further optimized that the supports 1, the crossbar 2, the support rods 11 and the hand support rod 12 are all made of 304 stainless steel pipes. The connection between the supports 1 and the crossbar 2, and the connection between the hand support rod 12 and the support rods 11 are all welded. 304 stainless steel pipes have high strength and are not easily deformed or oxidized. The bottom of the support rod 11 is connected to a caster 3. The caster 3 includes a foot 31, and the bottom of the foot 31 has a vertically provided sliding hole 311. A sliding element 32 is adapted to fit inside the sliding hole 311. The cross-section of the sliding hole 311 is circular, and the cross-section of the sliding element 32 is also circular. The sliding element 32 and the sliding hole 311 are clearance-fitted. When the sliding element 32 slides up and down in the sliding hole 311, it is more stable and smooth. The bottom of the sliding element 32 has a ball groove, and a ball bearing 321 is provided in the ball groove. The ball bearing 321 and the sliding element 32 form a ball caster, which can achieve flexible turning within a small range. A compression spring 33 is fixedly connected to the upper surface of the sliding element 32. The sliding element 32 and the compression spring 33 are made of 304 stainless steel. Made of steel, the support can be connected by welding. The top of the compression spring 33 is fixedly connected to the lower surface of the top of the sliding hole 311. The support leg 31 is made of 304 stainless steel. The top of the compression spring 33 is connected to the lower surface of the top of the sliding hole 311 by welding. The elastic force of the compression spring 33 can support the bracket 1, so that the lower surface of the support leg 31 is off the ground. A limiting ring 312 is provided circumferentially at the bottom edge of the sliding hole 311. The inner diameter of the limiting ring 312 is smaller than the outer diameter of the sliding member 32 and larger than the diameter of the ball 321. The limiting ring 312 can prevent the sliding member 32 from falling out of the sliding hole 311 and does not hinder the rotation of the ball 321.

[0020] The top of the sliding hole 311 is provided with a guide hole 313, and the top of the sliding member 32 is provided with a guide rod 322 that is adapted to the guide hole 313. The compression spring 33 is sleeved on the guide rod 322. When in use, the guide rod 322 is located inside the guide hole 313. The guide rod 322 and the guide hole 313 are in clearance fit, so that the stroke process of the sliding member 32 is more stable when it moves up and down.

[0021] The support leg 31 is shaped like a truncated cone with a base radius larger than the top radius. The larger the contact area between the base of the support leg 31 and the ground, the easier it is for the center of gravity of the walker to fall within the support surface, which improves the stability of the walker and significantly reduces the probability of tipping over.

[0022] A threaded rod 34 is fixedly connected to the top of the support leg 31. The lower surface of the support rod 11 is vertically provided with a threaded hole 111 that matches the threaded rod 34. The support rod 11 and the support leg 31 are threadedly connected through the threaded engagement of the threaded rod 34 and the threaded hole 111. By turning the threaded rod 34 and adjusting its position in the threaded hole 111, the overall height of the walker can be adjusted to suit users of different heights.

[0023] The top of the support leg 31 is provided with a screwing component 314, and a threaded rod 34 is fixedly connected to the top of the screwing component 314. The threaded rod 34 is made of 304 stainless steel. The screwing component 314 and the threaded rod 34 are connected by welding. The outer surface of the screwing component 314 is provided with opposite side planes 315, which facilitates the screwing operation of the screwing component 314 by using an adjustable wrench.

[0024] The bottom of the support leg 31 is glued with a rubber pad to increase its friction with the ground, prevent slipping during use, and reduce safety hazards. The ball bearing 321 is made of rubber, which can prevent it from scratching the ground. In particular, when users use the walker indoors, the rubber ball bearing 321 can prevent it from scratching the floor or tiles.

[0025] There are two horizontal bars 2, one at the top and one at the bottom. The two ends of the horizontal bars 2 are fixedly connected to the support rods 11 at the front of the two brackets 1, which increases the overall stability of the walker.

[0026] Two support rods 11 located at the front are slidably connected to a backrest plate 4. Sleeves 41, adapted to the support rods 11, are fixed at both ends of the backrest plate 4. Further optimization is possible by ensuring that the backrest plate 4 and sleeves 41 are made of 304 stainless steel and are welded together. The sleeves 41 are fitted onto the support rods 11, and the backrest plate 4 achieves a sliding connection with the support rods 11 through the sliding fit between the sleeves 41 and the support rods 11. The sleeves 41 have positioning holes 42, each fitted with a positioning bolt 43. After adjusting the backrest plate 4 to a suitable position, the positioning bolt 43 is tightened. The front end of the positioning bolt 43 presses against the support rod 11, increasing the friction between the positioning bolt 43 and the support rod 11, thus fixing the position of the backrest plate 4. Further optimization is possible by ensuring that a sponge cushion is bonded to the surface of the backrest plate 4 that contacts the user, improving comfort. A handgrip groove is provided on the front surface of the backrest plate 4 for easy operation.

[0027] A support rod 13 is fixedly connected between the two support rods 11 of the bracket 1. The support rod 13 is located below the hand support rod 12. A seat plate 5 is rotatably connected between the support rods 13 of the two brackets 1. The seat plate 5 and the support rod 13 are rotatably connected by a shaft hole. The seat plate 5 has snap-fit ​​pieces 51 fixed at both ends. Further optimization is possible by using 304 stainless steel for both the seat plate 5 and the snap-fit ​​pieces 51, and welding as the connection method. The front of the snap-fit ​​piece 51 has a slot 511 that matches the support rod 11. Further optimization is possible by using a round rod for the support rod 11, and the contact surface between the slot 511 and the support rod 11 is a concave arc surface. When the seat plate 5 is not in use, it can be... When the seat 5 is upright, the support rod 11 is inserted into the slot 511 through elastic deformation on both sides of the slot 511 and clamped to the support rod 11, fixing the seat 5 to the bracket 1 and limiting the position of the seat 5. When the user walks with the walking aid, the seat 5 will not affect the user's leg movement. The rear of the snap-fit ​​part 51 is provided with a positioning groove 512 that matches the support rod 13. When the seat 5 is to be used, the seat 5 is lowered so that the support rod 13 falls into the positioning groove 512, and the support rod 13 provides support to the seat 5, allowing the user to sit on the seat 5 to rest. To further optimize the limitation, a sponge cushion is bonded to the contact surface between the seat 5 and the human body, which improves the comfort of use.

[0028] The hand support 12 is equipped with an anti-slip sleeve 121, which is made of sponge material to cushion the pressure on the hand from the hand support 12 and improve the comfort of use. Several anti-slip grooves are opened on the outer surface of the anti-slip sleeve 121 to prevent the hand from slipping when it comes into contact with the anti-slip sleeve 121 due to sweat.

[0029] Working principle: When using the walker, the user first adjusts the height of the walker by turning the screw 314. Then, the user stands between the two supports 1 and holds the hand support bars 12 on both sides with both hands. When moving the lower limbs, the user presses down on the hand support bars 12, compressing the spring 33 and pressing the sliding member 32 along with the ball bearing 321 into the sliding hole 311. At this time, the bottom surface of the support leg 31 is in contact with the ground, stabilizing the position of the walker and preventing it from sliding. After the user has moved the lower limbs, the arms reduce the pressure on the walker. Pressing down compresses the spring 33, which, during its deformation recovery process, pushes the sliding part 32 along with the ball bearing 321 to the bottom of the sliding hole 311, making the ball bearing 321 contact the ground. The user can then push the walker and easily move it a distance. The user can then repeat the above steps to complete the walking training for lower limb rehabilitation. If the user feels tired, the user can adjust the backrest 4 to a suitable position using the positioning bolt 43, and then lay down the seat 5 so that the support rod 13 falls into the positioning groove 512. The user can then sit on the seat 5 to rest.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lower limb rehabilitation walking aid, characterized in that: It includes two supports (1), which are arranged opposite each other. The front of the two supports (1) is connected by a crossbar (2). Each support (1) includes two vertically arranged support rods (11) and a horizontally arranged hand support rod (12). The two ends of the hand support rod (12) are fixedly connected to the two support rods (11). The bottom of the support rods (11) is connected to casters (3). The casters (3) include feet (31). The bottom of the feet (31) is provided with vertical sliding holes (311). 311) is equipped with a sliding member (32), the bottom of the sliding member (32) is provided with a ball groove, and a ball (321) is provided in the ball groove. A compression spring (33) is fixedly connected to the upper surface of the sliding member (32), and the top of the compression spring (33) is fixedly connected to the lower surface of the top of the sliding hole (311). A limiting ring (312) is provided circumferentially at the bottom edge of the sliding hole (311). The inner diameter of the limiting ring (312) is smaller than the outer diameter of the sliding member (32) and larger than the diameter of the ball (321).

2. The lower limb rehabilitation walking aid according to claim 1, characterized in that, The top of the sliding hole (311) is provided with a guide hole (313), and the top of the sliding member (32) is provided with a guide rod (322) that is adapted to the guide hole (313). The compression spring (33) is sleeved on the guide rod (322).

3. The lower limb rehabilitation walking aid according to claim 1, characterized in that, The support (31) is a truncated cone with a base radius greater than the top radius.

4. The lower limb rehabilitation walking aid according to claim 1, characterized in that, The top of the support leg (31) is fixedly connected to a threaded rod (34), and the lower surface of the support rod (11) is vertically provided with a threaded hole (111) that matches the threaded rod (34). The support rod (11) and the support leg (31) are connected by threaded engagement between the threaded rod (34) and the threaded hole (111).

5. The lower limb rehabilitation walking aid according to claim 4, characterized in that, The top of the support leg (31) is provided with a screwing part (314), and a threaded rod (34) is fixedly connected to the top of the screwing part (314). The outer surface of the screwing part (314) is provided with a plane (315) opposite to each other.

6. The lower limb rehabilitation walking aid according to claim 1, characterized in that, The bottom surface of the support leg (31) is bonded with a rubber pad, and the ball bearing (321) is made of rubber.

7. The lower limb rehabilitation walking aid according to claim 1, characterized in that, There are two horizontal bars (2) at the top and bottom, and the two ends of the horizontal bars (2) are fixedly connected to the support rods (11) at the front of the two brackets (1).

8. The lower limb rehabilitation walking aid according to claim 7, characterized in that, Two support rods (11) located at the front are slidably connected to a back plate (4). The back plate (4) has sleeves (41) that are adapted to the support rods (11) fixed at both ends. The sleeves (41) are fitted onto the support rods (11). The back plate (4) is slidably connected to the support rods (11) through the sliding fit between the sleeves (41) and the support rods (11). The sleeves (41) have positioning holes (42) and positioning bolts (43) are provided in the positioning holes (42).

9. The lower limb rehabilitation walking aid according to claim 1, characterized in that, A support rod (13) is fixedly connected between the two support rods (11) of the bracket (1). The support rod (13) is located below the hand support rod (12). A seat plate (5) is rotatably connected between the support rods (13) of the two brackets (1). The two ends of the seat plate (5) are fixedly provided with snap-fit ​​parts (51). The front part of the snap-fit ​​part (51) is provided with a snap groove (511) that matches the support rod (11), and the rear part of the snap-fit ​​part (51) is provided with a positioning groove (512) that matches the support rod (13).

10. The lower limb rehabilitation walking aid according to claim 1, characterized in that, The hand support (12) is fitted with an anti-slip sleeve (121).

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