A stepping mechanism for an elderly mobility aid robot
By designing the stepping mechanism of the elderly walking assistance robot and using a combination of support rods and adjusting cylinders with threaded connections, the height and arm span of the walking aid can be adjusted, solving the problem that existing walking aids cannot adapt to different heights and arm spans, and improving the comfort of use.
Patent Information
- Application Number
- CN202520793742.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-04-24
AI Technical Summary
Existing walking aids cannot be adjusted according to the height and arm span of the elderly, resulting in limitations as they are not suitable for elderly people of different heights and arm spans.
A stepping mechanism for an elderly mobility aid robot was designed. Height adjustment is achieved through a combination of a first support rod, a second support rod, a first adjusting cylinder, and a threaded rod. Arm span adjustment is achieved through a combination of a first adjusting rod, a second adjusting rod, a second adjusting cylinder, and a threaded rod. An adjustable support structure is achieved using threaded and sliding connections.
It allows for adjustment based on the height and arm span of the elderly, improving comfort and adaptability to meet the needs of different elderly people.
Smart Images

Figure CN224937325U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of walking aids, and more specifically, to a stepping mechanism for a walking aid robot for the elderly. Background Technology
[0002] Rehabilitation walking aids are devices that enable elderly people and patients with mobility issues or even those who have lost the ability to walk to take care of themselves and go out for walks like normal people. They can also help those who have just recovered from leg problems with adaptive training. They are a type of rehabilitation equipment widely used in rehabilitation hospitals.
[0003] A search revealed that Chinese Patent Publication No. CN221266615U discloses "a multifunctional walking aid for elderly care, specifically relating to the field of elderly care, including a fixed plate, a handle fixedly connected to the upper part of the fixed plate, an adjustment component fixedly connected to the lower part of the fixed plate, a moving component fixedly connected to the lower center of the adjustment component, and hydraulic rods fixedly connected to the lower left and right sides of the adjustment component. This invention uses a moving component comprising a second motor, a control board, a transmission gear, a rope, a rotating plate, a rope shaft, and a universal wheel. The user can adjust the orientation of the bottom of the universal wheel using the moving component, allowing the user to move the walking aid using the universal wheel. When the elderly person uses the walking aid for assistance, the user can rotate the universal wheel to stop it from contacting the ground, preventing the elderly person from easily slipping and falling during movement, thus avoiding potential danger." However, the following drawbacks still exist:
[0004] (1) The above-mentioned walking aids cannot be adjusted according to the height of the elderly and cannot be used by elderly people of different heights, which has limitations.
[0005] (2) The above-mentioned walking aids cannot adjust the width of the walking aid according to the elderly's arm span, which makes them less comfortable and practical, and has limitations.
[0006] Therefore, we have made improvements to this by proposing a stepping mechanism for an elderly mobility aid robot. Utility Model Content
[0007] The purpose of this utility model is to address the limitations of the existing (1) walking aids, which cannot be adjusted according to the height of the elderly and cannot be used by elderly people of different heights.
[0008] (2) The above-mentioned walking aids cannot adjust the width of the walking aid according to the elderly's arm span, which makes them less comfortable and practical, and has limitations.
[0009] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0010] A stepping mechanism for an elderly mobility aid robot to improve the above-mentioned problems.
[0011] The specific details of this utility model are as follows:
[0012] The device includes a set of bases, and a first adjustment mechanism is installed on the top of the set of bases. The first adjustment mechanism includes a set of first support rods, a set of first adjustment cylinders slidably connected to the outer wall of the set of first support rods, a second support rod slidably connected to the inner wall of the set of first adjustment cylinders, a first threaded rod and a second threaded rod sequentially threaded to the outer wall of the first adjustment cylinders, with one end of the first threaded rod passing through the first support rod and the first adjustment cylinder, and one end of the second threaded rod passing through the second support rod and the first adjustment cylinder, and the end of the set of first support rods being fixedly connected to the top of the set of bases.
[0013] As a preferred technical solution of this utility model, a set of arc-shaped support plates are fixedly connected to the top of a set of first support rods, and a second adjustment mechanism is installed between the set of arc-shaped support plates. A first adjustment rod is fixedly connected to the outer wall of the arc-shaped support plate on the left side. A second adjustment cylinder is slidably connected to the outer wall of the first adjustment rod. A second adjustment rod is slidably connected to the inner wall of the second adjustment cylinder. A third threaded rod and a fourth threaded rod are sequentially threaded to the outer wall of the second adjustment cylinder. The end of the third threaded rod passes through the first adjustment rod and the second adjustment cylinder, and the end of the fourth threaded rod passes through the second adjustment rod and the second adjustment cylinder. One end of the second adjustment rod is fixedly connected to the outer wall of the arc-shaped support plate on the right side.
[0014] As a preferred technical solution of this utility model, the inner walls of the first adjusting cylinder and the first support rod are both provided with a first threaded groove that is adapted to the first threaded rod.
[0015] As a preferred technical solution of this utility model, the inner walls of the first adjusting cylinder and the second support rod are both provided with a second threaded groove that is adapted to the second threaded rod.
[0016] As a preferred technical solution of this utility model, the inner walls of the second adjusting cylinder and the first adjusting rod are both provided with a third threaded groove that is adapted to the third threaded rod.
[0017] As a preferred technical solution of this utility model, the inner walls of the second adjusting cylinder and the second adjusting rod are both provided with a fourth threaded groove that is adapted to the fourth threaded rod.
[0018] As a preferred technical solution of this utility model, a set of protective sleeves is installed on the outer wall of a set of arc-shaped support plates.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] In the solution of this utility model:
[0021] 1. By setting a first support rod, a first adjusting cylinder, a second support rod, a first threaded rod, and a second threaded rod, the height can be adjusted according to the elderly of different heights. By pushing the first support rod and the second support rod to move inside the first adjusting cylinder, when they are moved to the appropriate position, the first threaded rod and the second threaded rod can be rotated on the first adjusting cylinder. The first threaded rod moves and passes through the first support rod and the first adjusting cylinder, and the second threaded rod moves and passes through the second support rod and the first adjusting cylinder to fix it, thus adapting to the use of elderly people of different heights;
[0022] 2. By using a first adjusting rod, a second adjusting cylinder, a second adjusting rod, a third threaded rod, and a fourth threaded rod, the arm span can be adjusted according to different elderly people. By pushing the first and second adjusting rods to move the second adjusting cylinder, the movement of the first and second adjusting rods drives a set of arc-shaped support plates to adjust the distance. After adjustment, the third and fourth threaded rods are rotated on the second adjusting cylinder. The third threaded rod moves and passes through the second adjusting cylinder and the first adjusting rod, and the fourth threaded rod moves and passes through the second adjusting cylinder and the second adjusting rod to fix it, thereby improving the comfort of the elderly. Attached Figure Description
[0023] Figure 1 A schematic diagram of the overall structure of the stepping mechanism of an elderly mobility aid robot provided by this utility model;
[0024] Figure 2 A schematic diagram of the first adjustment mechanism of the stepping mechanism of an elderly mobility aid robot provided by this utility model;
[0025] Figure 3 A schematic diagram of the second adjustment mechanism of the stepping mechanism of an elderly mobility aid robot provided by this utility model;
[0026] Figure 4 A first exploded structural diagram of the stepping mechanism of an elderly mobility aid robot provided by this utility model;
[0027] Figure 5 This is a second exploded structural diagram of the stepping mechanism of an elderly mobility aid robot provided by this utility model.
[0028] The image shows:
[0029] 1. Base; 2. First adjusting mechanism; 201. First support rod; 202. First adjusting cylinder; 203. Second support rod; 204. First threaded rod; 205. Second threaded rod; 3. Arc-shaped support plate; 301. Protective sleeve; 4. Second adjusting mechanism; 401. First adjusting rod; 402. Second adjusting cylinder; 403. Second adjusting rod; 404. Third threaded rod; 405. Fourth threaded rod. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0034] like Figure 1-5As shown, this embodiment proposes a stepping mechanism for an elderly mobility aid robot, including a set of bases 1. A first adjustment mechanism 2 is installed on top of the set of bases 1. The first adjustment mechanism 2 includes a set of first support rods 201. A set of first adjustment cylinders 202 are slidably connected to the outer wall of the set of first support rods 201. A second support rod 203 is slidably connected to the inner wall of the set of first adjustment cylinders 202. A first threaded rod 204 and a second threaded rod 205 are sequentially threaded to the outer wall of the first adjustment cylinders 202. One end of the first threaded rod 204 passes through the first support rod 201 and the first adjustment cylinder 202, and one end of the second threaded rod 205 passes through the first support rod 204 and the first adjustment cylinder 202. Two support rods 203 and a first adjusting cylinder 202 are provided, and the ends of a set of first support rods 201 are fixedly connected to the upper part of a set of bases 1. By pushing the first support rods 201 and the second support rods 203 to move within the first adjusting cylinder 202, when they move to the appropriate position, the first threaded rod 204 and the second threaded rod 205 can be rotated on the first adjusting cylinder 202. The first threaded rod 204 moves and passes through the first support rod 201 and the first adjusting cylinder 202, and the second threaded rod 205 moves and passes through the second support rod 203 and the first adjusting cylinder 202 to fix it, thus adapting to the use of elderly people of different heights.
[0035] like Figure 1-5 As shown, a set of arc-shaped support plates 3 are fixedly connected to the top of a set of first support rods 201. A second adjustment mechanism 4 is installed between the set of arc-shaped support plates 3. A first adjustment rod 401 is fixedly connected to the outer wall of the left arc-shaped support plate 3. A second adjustment cylinder 402 is slidably connected to the outer wall of the first adjustment rod 401. A second adjustment rod 403 is slidably connected to the inner wall of the second adjustment cylinder 402. A third threaded rod 404 and a fourth threaded rod 405 are sequentially threaded to the outer wall of the second adjustment cylinder 402. The end of the third threaded rod 404 passes through the first adjustment rod 401 and the second adjustment cylinder 402, and the end of the fourth threaded rod 405 passes through the second adjustment rod 403 and the second adjustment cylinder 402. Furthermore, one end of the second adjusting rod 403 is fixedly connected to the outer wall of the right arc-shaped support plate 3. By pushing the first adjusting rod 401 and the second adjusting rod 403 to move the second adjusting cylinder 402, the movement of the first adjusting rod 401 and the second adjusting rod 403 drives a set of arc-shaped support plates 3 to adjust the distance. After adjustment, the third threaded rod 404 and the fourth threaded rod 405 are rotated on the second adjusting cylinder 402. The third threaded rod 404 moves and passes through the second adjusting cylinder 402 and the first adjusting rod 401, and the fourth threaded rod 405 moves and passes through the second adjusting cylinder 402 and the second adjusting rod 403 to fix them, thereby improving the comfort of the elderly.
[0036] like Figure 1-5As shown, the inner walls of the first adjusting cylinder 202 and the first support rod 201 are both provided with first threaded grooves that are adapted to the first threaded rod 204, so that the first threaded rod 204 can rotate on the first adjusting cylinder 202 and the first support rod 201.
[0037] like Figure 1-5 As shown, the inner walls of the first adjusting cylinder 202 and the second support rod 203 are both provided with second threaded grooves that are adapted to the second threaded rod 205, so that the second threaded rod 205 can rotate on the first adjusting cylinder 202 and the second support rod 203.
[0038] like Figure 1-5 As shown, the inner walls of the second adjusting cylinder 402 and the first adjusting rod 401 are both provided with a third threaded groove that is adapted to the third threaded rod 404, so that the third threaded rod 404 can rotate on the second adjusting cylinder 402 and the first adjusting rod 401.
[0039] like Figure 1-5 As shown, the inner walls of the second adjusting cylinder 402 and the second adjusting rod 403 are both provided with a fourth threaded groove that is compatible with the fourth threaded rod 405, so that the fourth threaded rod 405 can rotate on the second adjusting cylinder 402 and the second adjusting rod 403.
[0040] like Figure 1-5 As shown, a set of protective sleeves 301 are installed on the outer wall of a set of arc-shaped support plates 3 to improve the comfort of the elderly.
[0041] Specifically, the stepping mechanism of this elderly mobility aid robot works as follows: by pushing the first support rod 201 and the second support rod 203 to move within the first adjusting cylinder 202, once they reach the appropriate position, the first threaded rod 204 and the second threaded rod 205 can be rotated on the first adjusting cylinder 202. The first threaded rod 204 moves and passes through the first support rod 201 and the first adjusting cylinder 202, and the second threaded rod 205 moves and passes through the second support rod 203 and the first adjusting cylinder 202 for fixation. This allows it to be used by elderly people of different heights. The first adjusting rod 401 and the second adjusting rod 403 are pushed to move the second adjusting cylinder 402. The movement of the first adjusting rod 401 and the second adjusting rod 403 drives a set of arc-shaped support plates 3 to adjust the distance. After adjustment, the third threaded rod 404 and the fourth threaded rod 405 are rotated on the second adjusting cylinder 402. The third threaded rod 404 moves and passes through the second adjusting cylinder 402 and the first adjusting rod 401, and the fourth threaded rod 405 moves and passes through the second adjusting cylinder 402 and the second adjusting rod 403 to fix them, thereby improving the comfort of the elderly.
[0042] All technical features in this embodiment can be freely combined according to actual needs.
[0043] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A step mechanism of a walking aid robot for the elderly, comprising a set of bases (1), characterized in that, A first adjustment mechanism (2) is installed above a set of bases (1). The first adjustment mechanism (2) includes a set of first support rods (201). A set of first adjustment cylinders (202) are slidably connected to the outer wall of the set of support rods (201). A second support rod (203) is slidably connected to the inner wall of the set of first adjustment cylinders (202). A first threaded rod (204) and a second threaded rod (205) are threadedly connected to the outer wall of the first adjustment cylinder (202) in sequence. One end of the first threaded rod (204) passes through the first support rod (201) and the first adjustment cylinder (202). One end of the second threaded rod (205) passes through the second support rod (203) and the first adjustment cylinder (202). The end of the set of first support rods (201) is fixedly connected to the top of the set of bases (1).
2. The step mechanism of the old-age walking robot according to claim 1, wherein A set of first support rods (201) is fixedly connected to a set of arc-shaped support plates (3) at the top end. A second adjustment mechanism (4) is installed between the set of arc-shaped support plates (3). A first adjustment rod (401) is fixedly connected to the outer wall of the arc-shaped support plate (3) on the left side. A second adjustment cylinder (402) is slidably connected to the outer wall of the first adjustment rod (401). A second adjustment rod (403) is slidably connected to the inner wall of the second adjustment cylinder (402). A third threaded rod (404) and a fourth threaded rod (405) are sequentially threaded to the outer wall of the second adjustment cylinder (402). The end of the third threaded rod (404) passes through the first adjustment rod (401) and the second adjustment cylinder (402). The end of the fourth threaded rod (405) passes through the second adjustment rod (403) and the second adjustment cylinder (402). One end of the second adjustment rod (403) is fixedly connected to the outer wall of the arc-shaped support plate (3) on the right side.
3. The step mechanism of the old-age walking robot according to claim 1, wherein The inner walls of the first adjusting cylinder (202) and the first support rod (201) are both provided with a first threaded groove that is adapted to the first threaded rod (204).
4. The step mechanism of the old-age walking robot according to claim 1, wherein The inner walls of the first adjusting cylinder (202) and the second support rod (203) are both provided with a second threaded groove that is compatible with the second threaded rod (205).
5. The step mechanism of the elderly walking aid robot according to claim 2, wherein The inner walls of the second adjusting cylinder (402) and the first adjusting rod (401) are both provided with a third threaded groove that is adapted to the third threaded rod (404).
6. The step mechanism of the old-age walking robot according to claim 2, wherein The inner walls of the second adjusting cylinder (402) and the second adjusting rod (403) are both provided with a fourth threaded groove that is adapted to the fourth threaded rod (405).
7. The step mechanism of the elderly walking aid robot according to claim 2, wherein A set of protective sleeves (301) are installed on the outer wall of the set of arc-shaped support plates (3).
Citation Information
Patent Citations
Multifunctional walking aid for nursing old people
CN221266615U
