Walking aid for hemiplegic patient
By designing an adjustable hemiplegia patient walking assistance device and providing seat-type or hand-held support according to the specific situation of the patient, the problem of the limitations of the existing walking assistance device for patients with severe hemiplegia is solved, and the applicability of the device and the patient's independent walking ability are improved.
Patent Information
- Application Number
- CN202510434131.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2025-05-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the existing hemiplegia patient's walking assistance device is actually used, the patient needs to hold the anti-slip pad to move. Due to the limited arm strength, patients with severe hemiplegia cannot support walking for a long time, resulting in greater limitations in use.
A hemiplegia patient mobility device is designed to adjust its applicability according to the specific situation of the patient. When the patient is more severe hemiplegia, provide seat-type movement effect to achieve stable support; when the hemiplegia is mild, provide hand-held support function to exercise independent walking ability. The device includes a rectangular frame, universal moving wheel, a pants-shaped seat cushion, a longitudinal support height adjustment mechanism and an elastic strength adjustable support mechanism.
By adjusting the support method, the device's applicability to different scenarios is improved, the moving needs of hemiplegia patients in different situations is met, and the patient's independent walking ability is enhanced.
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Figure CN120037078A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of walking aids, and particularly to a walking aid for hemiplegic patients. Background Art
[0002] Hemiplegia refers to the paralysis of the muscles of the upper and lower limbs on the same side, sometimes accompanied by the paralysis of the ipsilateral lower facial muscles and tongue muscles. It is difficult for hemiplegic patients to move on their own. During the treatment of hemiplegic patients, drug treatment and self-exercise are required, which is beneficial to the treatment and rehabilitation of patients. When hemiplegic patients are exercising, they need to use walking aids to assist in walking.
[0003] For example, the Chinese patent with the publication number "CN219423245U" discloses "a walking aid for hemiplegic patients". Its main structure includes two support rods. Fixed blocks are arranged on the opposite sides of the two support rods. Fixed rods are fixedly connected to the top and bottom of the fixed blocks. The other ends of the fixed rods are welded with support blocks, and the support blocks are fixedly connected to the support rods. A disassembly and assembly mechanism is arranged inside the fixed blocks. An active block is slidably connected to the fixed rod. A clamping rod is fixedly connected to the surface of the active block, and the clamping rod cooperates with the disassembly and assembly mechanism. The active blocks on the two support rods are hinged through two folding rods, and the middle parts of the two folding rods are hinged to each other. Blind holes are arranged on the upper and lower sides of the fixed block, and the size of the blind holes matches the size of the clamping rod. This walking aid for hemiplegic patients solves the problem that the existing nursing walking aids generally cannot be folded, and they take up a lot of space when stored, which is not conducive to people's use. At the same time, when the user pulls the pull plate, the pull plate drives the pull rod and the connecting plate to move left and right, the connecting plate drives the spring to stretch and contract, and the pull rod can be disassembled. By setting the limit rod, support can be provided for the connecting plate. By setting the pull ring, it is convenient to pull the pull plate. By setting the anti-slip pad, a certain anti-slip effect can be provided for the user. By setting the moving wheels, it is convenient for the user to push the walking aid. By setting the auxiliary rod, the overall stability of the walking aid can be increased.
[0004] However, when the above-mentioned walking aid for hemiplegic patients is actually used, the patient needs to hold the anti-slip pad with his hand to move. For severely hemiplegic patients, the strength of their arms is limited, and they simply cannot support their walking for a long time. Therefore, its limitations in use are relatively large. Summary of the Invention
[0005] In view of the deficiencies of the prior art, the present invention provides a walking assistance device for hemiplegic patients, which can adjust its applicability to patients according to the patient's own situation. When the patient's hemiplegia is relatively severe, the device can provide a seat-like moving effect, thereby realizing the stable support function for the patient when walking. When the patient's hemiplegia is relatively mild, the device can provide a hand-held support function, thereby exercising the patient's independent walking ability, so as to improve the applicability of the device in different scenarios and solve the above technical problems.
[0006] To achieve the above object, the present invention provides the following technical solution: A walking assistance device for hemiplegic patients, including a rectangular frame with a top fixed substrate at the corners, upper connecting ears fixedly arranged inside two crossbeams of the rectangular frame, four universal moving wheels for movement, a pocket-shaped seat cushion with a hip sitting area inside, and lower connecting ears arranged on both sides of the pocket-shaped seat cushion. It also includes four longitudinal support height adjustment mechanisms, which internally are provided with a first outer threaded rod and a second outer threaded rod connected to the universal moving wheel and the end of the top fixed substrate, a longitudinal threaded sleeve threadedly connected to the first outer threaded rod and the second outer threaded rod and capable of changing the distance between the first outer threaded rod and the second outer threaded rod when rotating, and a polygonal limiting rod inserted into the axes of the first outer threaded rod and the second outer threaded rod and capable of preventing relative rotation between the first outer threaded rod and the second outer threaded rod; and two elastic strength adjustable support mechanisms, which internally are provided with a longitudinal hollow shell fixedly installed at the bottom of the upper connecting ear and in a hollow state inside, an upper movable limiting plate placed inside the longitudinal hollow shell and capable of moving axially along the longitudinal hollow shell, a fixed sleeve for connecting the upper movable limiting plate and the lower connecting ear, a spiral spring that elastically supports the upper movable limiting plate, and a lower movable limiting plate that changes the elastic strength of the spiral spring by changing its own height.
[0007] Preferably, the longitudinal support height adjustment mechanism includes a longitudinal threaded sleeve, a first outer threaded rod, and a second outer threaded rod. One end of the longitudinal threaded sleeve is provided with a first internal thread cavity with a concave structure, and the other end of the longitudinal threaded sleeve is provided with a second internal thread cavity with a concave structure. The rod body of the first outer threaded rod is installed inside the first internal thread cavity through a first thread structure, and the rod body of the second outer threaded rod is installed inside the second internal thread cavity through a second thread structure. The opposite ends of the first outer threaded rod and the second outer threaded rod are provided with a concave polygonal limiting cavity. A polygonal limiting rod is fixedly installed at the center of the longitudinal threaded sleeve and inserted into the polygonal limiting cavity. One end of the first outer threaded rod is provided with a first connecting plate integrally formed with it and fixedly connected to the universal moving wheel, and one end of the second outer threaded rod is provided with a second connecting plate integrally formed with it and fixedly connected to the top fixed substrate. The outer circumferential surface of the longitudinal threaded sleeve is provided with a polygonal knob structure integrally formed with it and convenient for rotation.
[0008] Preferably, the structural shape of the cross-section of the polygonal limiting cavity is the same as that of the cross-section of the polygonal limiting rod, both being polygonal structures, and the structural dimensions of the cross-section of the polygonal limiting cavity match those of the cross-section of the polygonal limiting rod.
[0009] Preferably, the first thread structure includes an internal thread structure disposed inside the first internal thread cavity and an external thread structure disposed on the rod body of the first external threaded rod, and the second thread structure includes an internal thread structure disposed inside the second internal thread cavity and an external thread structure disposed on the rod body of the second external threaded rod, and the helix direction of the first thread structure is opposite to that of the second thread structure.
[0010] Preferably, the elastic strength adjustable support mechanism includes a longitudinal hollow housing. At the top of the longitudinal hollow housing, there is a third connecting plate which is of an integral structure with it and fixedly installed at the bottom of the upper connecting ear. Inside the longitudinal hollow housing, there is a longitudinal component moving cavity. At the bottom of the longitudinal hollow housing, there is an internal thread hole. On the side of the longitudinal hollow housing, there are two symmetric longitudinal limiting sliding openings. Inside the longitudinal component moving cavity of the longitudinal hollow housing, there are placed a lower moving limiting plate and an upper moving limiting plate which can move axially along the longitudinal component moving cavity and are placed vertically. A helical spring is placed between the lower moving limiting plate and the upper moving limiting plate. At the bottom of the lower moving limiting plate, there is fixedly installed a longitudinal threaded rod which penetrates the internal thread hole, and the longitudinal threaded rod and the internal thread hole are connected by a thread structure. At the bottom of the longitudinal threaded rod, there is fixedly installed a rotating cap. On both sides of the upper moving limiting plate, there are limiting sliding rods which are of an integral structure with it and penetrate the two longitudinal limiting sliding openings respectively. The rod body of one of the limiting sliding rods is fixedly connected to the upper surface of the lower connecting ear through a fixed sleeve.
[0011] Preferably, the initial length of the helical spring is greater than the depth of the longitudinal component moving cavity.
[0012] Preferably, the thread structure includes an internal thread structure disposed on the circumferential inner wall of the internal thread hole and an external thread structure disposed on the rod body of the longitudinal threaded rod, and the internal thread structure matches the external thread structure.
[0013] Compared with the prior art, the present invention provides a walking assistance device for hemiplegic patients, having the following beneficial effects:
[0014] It can adjust its applicability to the patient according to the patient's own situation. When the patient has severe hemiplegia, the device can provide a seat-like moving effect, thus realizing the stable support function for the patient when walking. When the patient has mild hemiplegia, the device can provide a hand-held support function, thus exercising the patient's independent walking ability to improve the applicability of the device in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a perspective view of the present invention;
[0016] Figure 2 is a perspective sectional view of the present invention in the first perspective;
[0017] Figure 3 is a perspective sectional view of the present invention in the second perspective;
[0018] Figure 4 is a perspective view of the longitudinal support height adjustment mechanism in the present invention;
[0019] Figure 5 is a perspective sectional view of the longitudinal support height adjustment mechanism in the present invention;
[0020] Figure 6 is a perspective view of the elastic strength adjustable support mechanism in the present invention;
[0021] Figure 7 is a perspective sectional view of the elastic strength adjustable support mechanism in the present invention.
[0022] Wherein: 1, rectangular frame; 2, top fixed substrate; 3, upper connecting ear; 4, universal moving wheel; 5, pocket-shaped seat cushion; 6, lower connecting ear; 7, hip sitting area; 8, longitudinal support height adjustment mechanism; 81, longitudinal threaded sleeve; 82, first internal thread cavity; 83, second internal thread cavity; 84, first thread structure; 85, second thread structure; 86, first external threaded rod; 87, second external threaded rod; 88, first connecting plate; 89, second connecting plate; 810, polygonal limiting cavity; 811, polygonal limiting rod; 812, polygonal knob structure; 9, elastic strength adjustable support mechanism; 91, longitudinal hollow housing; 92, third connecting plate; 93, longitudinal component moving cavity; 94, internal thread hole; 95, longitudinal limiting sliding opening; 96, lower moving limiting plate; 97, longitudinal threaded rod; 98, rotating cap; 99, helical spring; 910, upper moving limiting plate; 911, limiting sliding rod; 912, fixed sleeve. DETAILED DESCRIPTION OF THE INVENTION
[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0024] Please refer to Figure 1 、 Figure 2 and Figure 3 , a walking assistance device for hemiplegic patients, including a rectangular frame 1 with a top fixed substrate 2 at the corners, upper connecting ears 3 fixedly arranged on the inner sides of the two cross beams of the rectangular frame 1, four universal moving wheels 4 for movement, a pocket-shaped cushion 5 with a hip sitting area 7 inside, and lower connecting ears 6 arranged on both sides of the pocket-shaped cushion 5. When the patient's hemiplegia is relatively severe, the patient sits on the hip sitting area 7, and the pocket-shaped cushion 5 plays a supporting role for the hip. When the patient's hemiplegia is relatively mild, the elastic strength adjustable support mechanism 9 and the pocket-shaped cushion 5 are disassembled, and the patient can hold the cross beam of the rectangular frame 1 by hand.
[0025] In order to realize the function of adjusting the support height, please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , four longitudinal support height adjustment mechanisms 8 need to be set. The inside of the mechanism is provided with a first outer threaded rod 86 and a second outer threaded rod 87 connected to the universal moving wheel 4 and the end of the top fixed substrate 2, a longitudinal threaded sleeve 81 threadedly connected to the first outer threaded rod 86 and the second outer threaded rod 87 and capable of changing the distance between the first outer threaded rod 86 and the second outer threaded rod 87 when rotating, and a polygonal limiting rod 811 inserted into the axes of the first outer threaded rod 86 and the second outer threaded rod 87 and capable of preventing the relative rotation between the first outer threaded rod 86 and the second outer threaded rod 87. When the longitudinal threaded sleeve 81 is rotated directionally, since the spiral direction of the first thread structure 84 is opposite to the spiral direction of the second thread structure 85, and during the rotation process, the presence of the polygonal limiting rod 811 makes the first outer threaded rod 86 and the second outer threaded rod 87 not relatively rotate. Therefore, the distance between the first outer threaded rod 86 and the second outer threaded rod 87 will change, thereby realizing the function of adjusting the support height.
[0026] Regarding the longitudinal support height adjustment mechanism 8, it includes a longitudinal threaded sleeve 81, a first external threaded rod 86, and a second external threaded rod 87. One end of the longitudinal threaded sleeve 81 is provided with a first internal threaded cavity 82 with a concave structure, and the other end of the longitudinal threaded sleeve 81 is provided with a second internal threaded cavity 83 with a concave structure. The rod body of the first external threaded rod 86 is installed inside the first internal threaded cavity 82 through a first thread structure 84, and the rod body of the second external threaded rod 87 is installed inside the second internal threaded cavity 83 through a second thread structure 85. The opposite ends of the first external threaded rod 86 and the second external threaded rod 87 are provided with a polygonal limit cavity 810 with a concave structure. A polygonal limit rod 811 inserted into the interior of the polygonal limit cavity 810 is fixedly installed at the center of the longitudinal threaded sleeve 81. One end of the first external threaded rod 86 is provided with a first connecting plate 88 integrally formed with it and fixedly connected to the universal moving wheel 4. One end of the second external threaded rod 87 is provided with a second connecting plate 89 integrally formed with it and fixedly connected to the top fixed substrate 2. The outer circumferential surface of the longitudinal threaded sleeve 81 is provided with a polygonal knob structure 812 integrally formed with it and facilitating rotation. The structural shape of the cross-section of the polygonal limit cavity 810 is the same as that of the cross-section of the polygonal limit rod 811, both being polygonal structures, and the structural size of the cross-section of the polygonal limit cavity 810 matches the structural size of the cross-section of the polygonal limit rod 811. The first thread structure 84 includes an internal thread structure provided inside the first internal threaded cavity 82 and an external thread structure provided on the rod body of the first external threaded rod 86. The second thread structure 85 includes an internal thread structure provided inside the second internal threaded cavity 83 and an external thread structure provided on the rod body of the second external threaded rod 87, and the spiral direction of the first thread structure 84 is opposite to the spiral direction of the second thread structure 85.
[0027] To achieve elastic support for the patient, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7, it is necessary to set two elastic strength adjustable support mechanisms 9, which are internally provided with a longitudinal hollow outer shell 91 fixedly installed at the bottom of the upper connecting ear 3 and hollow inside, an upper movable limiting plate 910 placed inside the longitudinal hollow outer shell 91 and capable of moving axially along the longitudinal hollow outer shell 91, a fixed sleeve 912 for connecting the upper movable limiting plate 910 and the lower connecting ear 6, a spiral spring 99 that elastically supports the upper movable limiting plate 910, and a lower movable limiting plate 96 that changes its own height to change the elastic strength of the spiral spring 99. Rotating the rotating cap 98, due to the connection relationship of the thread structure, the lower movable limiting plate 96 will move longitudinally, thereby changing the distance between the lower movable limiting plate 96 and the upper movable limiting plate 910, and further changing the elastic strength of the spiral spring 99 to change the elastic support strength of the trouser pocket-shaped cushion 5 on the patient. By adjusting this strength, the elastic comfort of the patient can be adjusted.
[0028] For the specific structure of the elastic strength adjustable support mechanism 9, please refer to Figure 6 and Figure 7 , including a longitudinal hollow outer shell 91. The top of the longitudinal hollow outer shell 91 is provided with a No. 3 connecting plate 92 integrally structured with it and fixedly installed at the bottom of the upper connecting ear 3. The inside of the longitudinal hollow outer shell 91 is provided with a longitudinal component movable cavity 93. The bottom of the longitudinal hollow outer shell 91 is provided with an internal thread hole 94. The side of the longitudinal hollow outer shell 91 is provided with two symmetric longitudinal limiting sliding openings 95. Inside the longitudinal component movable cavity 93 of the longitudinal hollow outer shell 91, a lower movable limiting plate 96 and an upper movable limiting plate 910 that can move axially along the longitudinal component movable cavity 93 and are placed vertically are placed. A spiral spring 99 is placed between the lower movable limiting plate 96 and the upper movable limiting plate 910. The bottom end of the lower movable limiting plate 96 is fixedly installed with a longitudinal threaded rod 97 passing through the internal thread hole 94, and the longitudinal threaded rod 97 and the internal thread hole 94 are connected by a thread structure. The bottom end of the longitudinal threaded rod 97 is fixedly installed with a rotating cap 98. Both sides of the upper movable limiting plate 910 are provided with limiting sliding rods 911 integrally structured with it and respectively passing through the two longitudinal limiting sliding openings 95. The rod body of one of the limiting sliding rods 911 is fixedly connected to the upper surface of the lower connecting ear 6 through a fixed sleeve 912. The initial length of the spiral spring 99 is greater than the depth of the longitudinal component movable cavity 93. The thread structure includes an internal thread structure provided on the circumferential inner wall of the internal thread hole 94 and an external thread structure provided on the rod body of the longitudinal threaded rod 97, and the internal thread structure matches the external thread structure.
[0029] In use, first, rotate the longitudinal threaded sleeve 81 directionally so that the first outer threaded rod 86 and the second outer threaded rod 87 do not rotate relative to each other. Therefore, the distance between the first outer threaded rod 86 and the second outer threaded rod 87 will change, thereby realizing the function of adjusting the support height. When the patient's hemiplegia is relatively severe, the patient sits on the hip sitting area 7 with the hip, and the pocket-shaped cushion 5 plays a role in supporting the hip. Rotate the rotating cap 98. Due to the connection relationship of the threaded structure, the lower movable limiting plate 96 will move longitudinally, thereby changing the distance between the lower movable limiting plate 96 and the upper movable limiting plate 910, and further changing the elastic strength of the helical spring 99 to change the elastic support strength of the pocket-shaped cushion 5 on the patient. By adjusting this strength, the elastic comfort of the patient can be adjusted. When the patient's hemiplegia is relatively mild, the elastic strength adjustable support mechanism 9 and the pocket-shaped cushion 5 can be disassembled, and the patient can hold the cross beam of the rectangular frame 1 by hand.
[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A walking aid for hemiplegic patients, comprising a rectangular frame (1) with a top fixed base plate (2) arranged at the corner, an upper connecting ear (3) fixedly arranged on the inner side of two cross beams of the rectangular frame (1), four universal movable wheels (4) for movement, a trouser pocket-shaped cushion (5) with a buttocks seating area (7) arranged inside, and lower connecting ears (6) arranged on both sides of the trouser pocket-shaped cushion (5), characterized in that: Also includes, Four longitudinal support height adjustment mechanisms (8), inside which are provided a No. 1 external threaded rod (86) and a No. 2 external threaded rod (87) connected to the ends of the universal movable wheel (4) and the top fixed base plate (2), a longitudinal threaded sleeve (81) threadedly connected to the No. 1 external threaded rod (86) and the No. 2 external threaded rod (87) and capable of changing the distance between the No. 1 external threaded rod (86) and the No. 2 external threaded rod (87) when rotating, and a polygonal limiting rod (811) inserted into the axis of the No. 1 external threaded rod (86) and the No. 2 external threaded rod (87) and capable of preventing the No. 1 external threaded rod (86) and the No. 2 external threaded rod (87) from rotating relative to each other; and two elastic strength adjustable support mechanisms (9), wherein a longitudinal hollow shell (91) is arranged inside the longitudinal hollow shell (91) which is fixedly mounted on the bottom of the upper connecting ear (3) and is hollow inside, an upper movable limit plate (910) which is placed inside the longitudinal hollow shell (91) and can move axially along the longitudinal hollow shell (91), a fixing sleeve (912) used to connect the upper movable limit plate (910) and the lower connecting ear (6), a coil spring (99) which has an elastic supporting effect on the upper movable limit plate (910), and a lower movable limit plate (96) which changes the elastic strength of the coil spring (99) by changing its own height.
2. A walking aid for hemiplegic patients according to claim 1, characterized in that: The longitudinal support height adjustment mechanism (8) comprises a longitudinal threaded sleeve (81), a No. 1 external threaded rod (86) and a No. 2 external threaded rod (87); one end of the longitudinal threaded sleeve (81) is provided with a No. 1 internal threaded cavity (82) with an inner concave structure; the other end of the longitudinal threaded sleeve (81) is provided with a No. 2 internal threaded cavity (83) with an inner concave structure; the rod body of the No. 1 external threaded rod (86) is installed inside the No. 1 internal threaded cavity (82) through a No. 1 threaded structure (84); the rod body of the No. 2 external threaded rod (87) is installed inside the No. 2 internal threaded cavity (83) through a No. 2 threaded structure (85); the No. 1 external threaded rod (86) and the No. 2 external threaded rod (87) are installed inside the No. 2 internal threaded cavity (83) through a No. 2 threaded structure (85); The threaded rod (87) is provided with a polygonal limiting cavity (810) with an inwardly concave structure at the opposite end; a polygonal limiting rod (811) inserted into the polygonal limiting cavity (810) is fixedly installed at the center of the longitudinal threaded sleeve (81); one end of the No. 1 external threaded rod (86) is provided with a No. 1 connecting plate (88) which is integrally formed with the rod and fixedly connected to the universal movable wheel (4); one end of the No. 2 external threaded rod (87) is provided with a No. 2 connecting plate (89) which is integrally formed with the rod and fixedly connected to the top fixed base plate (2); and the outer circumferential surface of the longitudinal threaded sleeve (81) is provided with a polygonal knob structure (812) which is integrally formed with the rod and convenient for rotation.
3. A walking aid for hemiplegic patients according to claim 2, characterized in that: The structural shape of the cross section of the polygonal limiting cavity (810) is consistent with the structural shape of the cross section of the polygonal limiting rod (811), both of which are polygonal structures, and the structural dimensions of the cross section of the polygonal limiting cavity (810) match the structural dimensions of the cross section of the polygonal limiting rod (811).
4. The walking aid for hemiplegic patients according to claim 2, characterized in that: The No. 1 thread structure (84) includes an internal thread structure arranged inside the No. 1 internal thread cavity (82) and an external thread structure arranged on the rod body of the No. 1 external thread rod (86); the No. 2 thread structure (85) includes an internal thread structure arranged inside the No. 2 internal thread cavity (83) and an external thread structure arranged on the rod body of the No. 2 external thread rod (87); and the spiral direction of the No. 1 thread structure (84) is opposite to the spiral direction of the No. 2 thread structure (85).
5. The walking aid for hemiplegic patients according to claim 1, characterized in that: The elastic strength adjustable support mechanism (9) comprises a longitudinal hollow shell (91), the top end of the longitudinal hollow shell (91) is provided with a No. 3 connecting plate (92) which is integrally structured with the longitudinal hollow shell (91) and fixedly mounted on the bottom of the upper connecting ear (3), the interior of the longitudinal hollow shell (91) is provided with a longitudinal component movable cavity (93), the bottom end of the longitudinal hollow shell (91) is provided with an internal threaded hole (94), the side of the longitudinal hollow shell (91) is provided with two symmetrical longitudinal limit sliding openings (95), and the longitudinal hollow shell (91) is provided with a lower movable limit plate (96) and an upper movable limit plate which are capable of axially moving along the longitudinal component movable cavity (93) and are placed downward and upward inside the longitudinal component movable cavity (93). (910), a coil spring (99) is arranged between the lower movable limit plate (96) and the upper movable limit plate (910), a longitudinal threaded rod (97) passing through the internal threaded hole (94) is fixedly installed at the bottom end of the lower movable limit plate (96), and the longitudinal threaded rod (97) and the internal threaded hole (94) are connected by a threaded structure, and a rotating cap (98) is fixedly installed at the bottom end of the longitudinal threaded rod (97), and both sides of the upper movable limit plate (910) are provided with limit sliding rods (911) which are integrally structured with it and pass through two longitudinal limit sliding openings (95) respectively, and the rod body of one of the limit sliding rods (911) is fixedly connected to the upper surface of the lower connecting ear (6) through a fixing sleeve (912).
6. The walking aid for hemiplegic patients according to claim 5, characterized in that: The initial length of the coil spring (99) is greater than the depth of the longitudinal member active cavity (93).
7. The walking aid for hemiplegic patients according to claim 5, characterized in that: The thread structure comprises an internal thread structure arranged on the inner circumferential wall of the internal thread hole (94) and an external thread structure arranged on the rod body of the longitudinal thread rod (97), and the internal thread structure matches the external thread structure.
Citation Information
Patent Citations
Walking aid for hemiplegic patient
CN219423245U