Walking aid for preventing old people from falling down

Abstract

The invention belongs to the technical field of anti-falling devices. In order to solve the problem that an existing anti-falling device is poor in use effect, the walking aid for preventing the old people from falling is provided and comprises a movable base, a height adjusting connecting rod, a stability maintaining mechanism and a waist surrounding belt. The upper end of the height adjusting connecting rod is connected with the stability maintaining mechanism, and the lower end is connected with the movable base. Through the stability maintaining mechanism, when an old person falls forwards, the old person can be pulled backwards, two arms of the old person are supported, the body balance of the old person is maintained, when the old person falls backwards, the back of the old person can be supported, and the purpose of maintaining the body balance is achieved; the walking aid provided by the invention can maintain the body balance of the old people when the old people fall forwards or backwards, and the use effect is good.

Description

Technical Field

[0001] This invention belongs to the field of fall prevention devices, specifically relating to a walking aid for preventing falls in the elderly. Background Technology

[0002] With the accelerating aging of the global population, the health and quality of life of the elderly are receiving increasing attention. Among these concerns, the safety hazards associated with walking due to declining physical function, particularly falls, have become a serious social issue urgently needing resolution. Against this backdrop, walking aids, as crucial tools for assisting the elderly in walking and improving their mobility safety, are undeniably important.

[0003] Patent CN116999775A discloses a walking aid for preventing falls in the elderly, including a carrying strap, a support frame, a wheel assembly, an air pump assembly, a winding assembly, and a cushioning assembly. In use, a six-axis sensor monitors the elderly person's movements and posture. Connected to a processor, it can promptly determine if a fall is imminent, triggering the corresponding fall prevention mechanism. When the processor determines an impending fall, it controls the winding assembly to retract the carrying strap, pulling it closer to the support frame for better support and stability. Simultaneously, the processor controls the cushioning assembly to cushion the side of the elderly person closest to the support frame, preventing injury from impact.

[0004] However, the above-mentioned technical solutions offer only one type of protection. They can only help maintain the elderly person's balance by pulling them with the support belt and carrying strap when they fall forward. However, due to the limitations of the application scenarios of the above-mentioned technical solutions, if the elderly person falls backward, the support will tilt backward under the action of gravity, and it will not be able to effectively protect the elderly person. Summary of the Invention

[0005] The purpose of this invention is to overcome the problem that existing fall prevention devices offer only one protection direction and cannot effectively protect the elderly.

[0006] To achieve the above objectives, the present invention adopts the following technical approach: providing a walking aid to prevent falls in the elderly, comprising a movable base, a height adjustment linkage, a stabilization mechanism, and a waist belt; wherein, the upper end of the height adjustment linkage is connected to the stabilization mechanism, and the lower end is connected to the movable base. The stabilization mechanism of this invention can pull the elderly person backward and provide support for their arms when they fall forward, maintaining their balance; and when they fall backward, it can provide forward support for their back, achieving the purpose of maintaining balance. The walking aid provided by this invention can maintain the elderly person's balance in both forward and backward falls, and its effectiveness is good.

[0007] Based on the above technical concept, the technical solution adopted by this invention is as follows: A walking aid for preventing falls in the elderly includes a waist belt and also includes: Mobile base; Both height adjustment links are located above the movable base, and the bottom end of each height adjustment link is connected to the movable base; The stabilization mechanism is located above the height adjustment linkage and is connected to the movable base, the top of the height adjustment linkage, and the waist belt. It is used to maintain the balance of the elderly and prevent them from falling forward, backward, to the left, or to the right. The balancing device is mounted on a movable base.

[0008] To prevent elderly people from falling forward suddenly upon losing consciousness, and to provide further support to their upper body while pulling them backward, the preferred stabilization mechanism in the above technical solutions includes: Two actuators are connected to corresponding height adjustment linkages, and each actuator has a rotary gear at its output end; Both movable handrails are mounted on corresponding height adjustment levers; Two first racks are respectively installed inside the corresponding movable handrails; and each first rack is meshed with a corresponding rotating gear. A balance bar is installed between two movable handrails, with both ends of the balance bar slidably connected to the movable handrails on the same side, and the middle part of the balance bar connected to the waist belt. Two anti-fall components are respectively installed on the mobile base.

[0009] To further optimize the support effect, enabling the elderly to be pulled backward when falling forward and to receive forward support when falling backward, the balance bar is further defined as follows: The stabilizer bar body has a C-shaped structure; mounting grooves are provided at both ends of the stabilizer bar body. Two second racks are respectively set at both ends of the balance bar body, and each second rack passes through the corresponding movable handrail and meshes with the rotating gear.

[0010] To further define the above technical solution, casters are provided at the four corners of the bottom surface of the mobile base.

[0011] To further prevent elderly people from falling to either side, the above technical solution is further defined as follows: Each anti-fall component includes: A mounting bracket for the casters, which is rotatably connected to the casters. A balancing hydraulic rod is mounted on the moving wheel mounting bracket, and the output end of the balancing hydraulic rod is connected to the bottom surface of the moving base.

[0012] To address situations where elderly individuals fall due to loss of consciousness or leg weakness, and to further enhance the stability of the aforementioned technical solution and prevent further falls, a stabilization component is added to prevent falls. This stabilization component includes: The connecting bracket is installed on the bottom surface of the balance bar; A limiting cylinder is provided on the upper surface of the balance bar, and a groove is provided at the end of the limiting cylinder away from the balance bar; The extrusion column passes through the limiting cylinder and the connecting frame in sequence at its lower end and is located below the limiting cylinder. The upper end of the extrusion column is provided with a toothed ring for connecting with the slot. The stabilizing clamp is located at the bottom of the connecting frame and is in contact with the extrusion column.

[0013] In order to quickly stabilize the elderly person's body in the instant they lose consciousness and fall, the above-mentioned technical solution is further specified by the stabilizing clamp including two spring-connected clamping rods, with a channel formed between the ends of the two clamping rods to facilitate the passage of the compression column.

[0014] To further define the above technical solution, a reset component is provided between the limiting cylinder and the extrusion column to drive the extrusion column to reset.

[0015] To improve the overall flexibility of the device, the above technical solution is further specified by adding a seat plate between the two height adjustment links, with each side of the seat plate connected to a height adjustment link on the same side. Beneficial effects

[0016] I. This invention, through the combined design of a stabilization mechanism, a waist belt, and a balance device, can effectively maintain the body balance of the elderly and prevent them from falling when they fall forward, backward, or to the side. Second, this invention, through the combined design of movable handrails, balance bars and stabilization components, can provide support for the upper body of the elderly when they fall due to loss of consciousness and weakness in their lower limbs. It can also promptly straighten the elderly's body according to the direction of their fall after losing consciousness, thereby preventing falls. Third, the balance bar and movable handrail provided by the present invention can pull the elderly backward when they fall forward, and the movable handrail extends forward so that the two handrails are located at the armpit position of the elderly to provide further support for the elderly. Fourth, the present invention, through the combined design of the height adjustment rod and the stabilization mechanism, can be applied to elderly people of different heights, and the overall device has strong applicability; Fifth, the present invention, through the combined design of the height adjustment rod and the seat plate, makes it easy to switch the entire device from the anti-fall mode to the seat mode so that the elderly can rest. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a walking aid for preventing falls in the elderly, provided by an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the device in use to prevent elderly people from falling backward. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 1 The diagram shows the device in use to prevent elderly people from falling forward. Figure 5 for Figure 1 The diagram shows the usage status of the device in seat mode; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 for Figure 1 Structural diagram of the China-Maintenance Stability Mechanism; Figure 8 for Figure 7 Right view of the device shown; Figure 9 This is a schematic diagram of the balance bar structure; Figure 10This is a structural diagram of the stabilization component; Figure 11 for Figure 10 A schematic diagram of the device from another perspective; Figure 12 This is a schematic diagram showing the connection relationship between the stabilizing clamp and the connecting frame; Figure 13 for Figure 12 A cross-sectional view of the connecting frame in the device shown; Figure 14 for Figure 1 A schematic diagram of the device from another perspective; Figure 15 for Figure 14 Enlarged view of point C in the middle; Figure 16 for Figure 1 A schematic diagram of the device from another perspective; Figure 17 for Figure 16 Enlarged view of point D in the middle.

[0019] Among them, 1. movable base; 2. height adjustment linkage; 21. rotating rod one; 22. rotating rod two; 23. rotating rod three; 24. rotating unit one; 25. rotating unit two; 26. rotating unit three; 27. connecting shaft one; 28. connecting shaft two; 3. Stabilization mechanism; 31. Driver; 31a. Rotary gear; 32. Movable handrail; 33. Balance bar; 33a. Balance bar body; 33b. Second rack; 34. Anti-side fall assembly; 34a. Moving wheel mounting bracket; 34b. Balance hydraulic rod; 35. Stabilization assembly; 35a. Connecting frame; 35b. Limiting cylinder; 35c. Extrusion column; 35d. Stabilization clamp; 35e. Reset component; 4. Balancer; 5. Waist belt; 6. Casters; 7. Seat board; 8. Storage basket; 9. Lighting. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] In the description of this invention, it should be understood that the terms "length direction," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not 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 the invention. Furthermore, the features referred to as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The inventors discovered that current walking aids can only help maintain the elderly person's balance and provide protection when they fall forward by pulling them with the support straps and back straps. However, if the elderly person falls backward, the support frame will also fall backward under the influence of the elderly person's gravity, failing to provide any protection and resulting in poor overall performance.

[0024] Based on the above findings, this application proposes a fall prevention aid for the elderly, comprising a movable base 1, a height adjustment linkage 2, a stabilization mechanism 3, a balancer 4, a waist belt 5, movable wheels 6, and a seat 7. The application improves the fall prevention effect of the overall device through the following design: 1. The stability maintenance mechanism 3 can prevent elderly people from falling from the front, back, and sides. 2. The height adjustment lever 2 can switch between anti-fall mode and seat mode, and can be matched with users of different heights. It is simple to operate and easy to use. 3. The balancer 4 can detect the moving base 1 in the front, back and sides to quickly determine whether the elderly person has fallen.

[0025] Example 1

[0026] This embodiment provides a walking aid to prevent falls in the elderly, such as... Figures 1 to 17As shown, it includes a movable base 1, a height adjustment linkage 2, a stabilization mechanism 3, a balancer 4, a waist belt 5, movable wheels 6, and a seat plate 7.

[0027] The movable base 1 is equipped with a movable driver inside, and four movable wheels 6 are provided below the movable base 1. The two movable wheels 6 located at the rear are connected to the movable driver in the movable base 1 so that the movable driver drives the two movable wheels 6 to rotate, thereby driving the whole device to move back and forth. The two movable wheels 6 located on the side closer to the elderly are respectively connected to the movable base 1 through the stabilization mechanism 3. The movable driver in the movable mechanism 1 and the connection method between the movable driver and the movable wheels 6 are existing technologies, and the present invention does not improve them. For example, the movable driver is a rotary motor.

[0028] In actual use, a storage basket 8 can also be fixedly added to the movable base 1 for placing items.

[0029] The balancer 4 is fixedly mounted on the upper surface of the movable base 1; wherein, the balancer 4 is existing technology, and the present invention does not improve it. For example, the balancer 4 is a HUOTO 4×90° digital display angle meter.

[0030] In actual use, two symmetrically distributed height adjustment links 2 are fixedly installed on the upper surface of the mobile base 1, and the end of each height adjustment link 2 away from the mobile base 1 is fixedly connected to the stabilization mechanism 3.

[0031] Each height adjustment linkage 2 includes three rotating rods and three rotating units, which are rotatably connected to each other through corresponding rotating units. The three rotating rods are rotating rod one 21, rotating rod two 22, and rotating rod three 23, and the three rotating units are rotating unit one 24, rotating unit two 25, and rotating unit three 26. Each rotating unit is based on existing technology; preferably, each rotating unit is a rotary motor. Each rotating rod has a through hole at its end to facilitate the movement of the output shaft of the corresponding rotating unit. Specifically, the rotating units 24 in the two height adjustment linkages 2 are fixedly and symmetrically arranged on the movable base 1, and the output end of each rotating unit 24 is perpendicular to the corresponding rotating rod 21. The output end of the rotating unit 24 is fixedly connected to one end of the rotating rod 21, and the other end of the rotating rod 21 is fixedly connected to the fixed end of the rotating unit 25. The output end of the rotating unit 25 is perpendicular to the corresponding rotating rod 22, and the output end of the rotating unit 25 is fixedly connected to one end of the rotating rod 22, while the other end of the rotating rod 22 is fixedly connected to the fixed end of the rotating unit 3 26. The output end of the rotating unit 3 26 is perpendicular to the corresponding rotating rod 3 23, and the output end of the rotating unit 3 26 is fixedly connected to one end of the rotating rod 3 23, while the other end of the rotating rod 3 23 is fixedly connected to the stabilization mechanism 3.

[0032] In practical applications, the rotation directions of the rotating units 24, 25, and 26 in the two height adjusting rods 2 are all opposite, so that the two rotating rods 21, 22, and 23 rotate in the same direction.

[0033] To enhance the versatility of the overall device's functions, the seat plate 7 is positioned between the two height-adjusting linkages 2 and is fixedly connected to the sides of the rotating rod 22 in each of the two height-adjusting linkages 2. This allows for switching of the operating mode by controlling the number of rotations of the rotating unit. Specifically, the seat plate 7 has a square plate structure, and mounting posts are provided on both sides of the seat plate 7. These mounting posts are used to engage with the rotating rod B to secure the seat plate 7.

[0034] In actual use, in order to improve the stability of the two height adjustment links 2, a connecting shaft 1 27 and a connecting shaft 28 are provided between the two height adjustment links 2. Among them, the two ends of the connecting shaft 27 pass through the through holes of the two rotating rods 21 respectively, and are fixedly connected to the output shaft of the rotating unit 25 on the same side; the two ends of the connecting shaft 28 pass through the through holes of the two rotating rods 22 respectively, and are fixedly connected to the output shaft of the rotating unit 3 on the same side.

[0035] The stabilization mechanism 3 includes two actuators 31, two movable handrails 32, a balance bar 33, and two anti-fall-off components 34; like Figure 1 As shown, two drivers 31 are respectively fixedly mounted on the upper end of the corresponding rotating rod 23; specifically, each rotating rod 23 has a triangular mounting bracket fixedly mounted on its upper end, each driver 31 is fixedly mounted on the corresponding triangular mounting bracket, and each driver 31 has a rotating gear 31a fixedly mounted on its output end; wherein, the driver 31 provided in this embodiment of the invention is prior art, and this embodiment of the invention does not improve it, for example, the driver 31 is a rotary motor; Two movable handrails 32 are slidably mounted on the upper end of the corresponding rotating rod 33 and located inside the corresponding drive 31. Each movable handrail 32 has a rod-shaped structure with a strip-shaped through hole at its center, and a first rack for engaging with the rotating gear 31a is fixed on the inner wall of the strip-shaped through hole. A groove is provided on the upper surface of the movable handrail 32 to facilitate sliding connection with the balance bar 33. In actual use, a lighting lamp 9 can also be fixedly added to each movable handrail 32 to provide lighting for the elderly during activities.

[0036] like Figure 4 and Figure 9 As shown, the balance bar 33 is disposed between the two movable handrails 32. Specifically, the balance bar 33 includes a balance bar body 33a and two second racks 33b respectively disposed at the ends of the balance bar body 33a. Specifically, the balance bar body 33a has a C-shaped structure, and both ends of the balance bar body 33a are provided with mounting grooves for sliding connection with the corresponding movable handrail 32; wherein, the side of the balance bar body 33a is fixedly connected to the waist belt 5 so that the balance bar body 33a can move the elderly forward or to the right through the waist belt 5; wherein, the structure of the waist belt 5 is not limited in this embodiment of the invention, but preferably, the waist belt 5 is an airbag ring or a rubber ring; like Figure 17 As shown, each second rack 33b is slidably disposed in the corresponding groove on the upper surface of the movable handrail 32 and is meshed with the rotating gear 31a on the same side. That is, the first rack and the second rack 33b are located on the upper and lower sides of the rotating gear 31a respectively, and are both meshed with the rotating gear 31a.

[0037] The working principle of the balance bar 33 provided in this embodiment of the invention is as follows: 1. When the balancer 4 detects that an elderly person has fallen forward, the output end of the driver 31 rotates clockwise, causing each movable handrail 32 to move towards the side closer to the elderly person. At this time, under the meshing connection of the rotating gear 31a and the second rack 33b, the second rack 33b slides away from the elderly person in the groove, causing the balance bar body 33a to pull the elderly person backward through the waist belt 5, so as to balance the body. At the same time, under the action of the rotating gear 31a, the rotating gear 31a drives the two movable handrails 32 to move forward through the first rack, so that the movable handrails 32 extend to below the armpits of the elderly, providing further support for the upper body of the elderly. Second, when the balancer 4 detects that the elderly person has fallen backward, the output end of the driver 31 rotates counterclockwise, causing each movable handrail 32 to move away from the elderly person. At this time, under the meshing connection of the rotating gear 31a and the second rack 33b, the second rack 33b moves towards the elderly person, so as to provide a forward support force for the elderly person's back, thereby correcting the elderly person's posture.

[0038] Two anti-side-fall components 34 are respectively mounted on the movable base 1 and fixedly connected to the movable wheel 6; specifically, each anti-side-fall component 34 includes: a movable wheel mounting bracket 34a and a balancing hydraulic rod 34b; The balancing hydraulic rod 34b is fixedly mounted on the movable wheel mounting bracket 34a, and the output end of the balancing hydraulic rod 34b is fixedly connected to the bottom surface of the movable base 1; the balancing hydraulic rod 34b provided in this embodiment of the invention is prior art, and this embodiment of the invention does not improve upon it; The movable wheel mounting bracket 34a has an inverted C-shaped structure, and the movable wheel mounting bracket 34a is rotatably connected to the corresponding movable wheel 6 via a rotating shaft; wherein, the movable wheel 6 is located on the side closer to the elderly person.

[0039] The working principle of the anti-fall component 34 provided in this embodiment of the invention is as follows: When the balancer 4 detects that the elderly person is falling to the left, the balance hydraulic rod 34b in the anti-fall component 34 located on the left side of the elderly person is activated. The movable end of the balance hydraulic rod 34b extends, thereby switching the movable base 1 from an inclined state to a horizontal state, thereby keeping the stabilization mechanism 3 in a horizontal state and preventing the elderly person from falling. When the balancer 4 detects that the elderly person has fallen to the right, the anti-fall component 34 located on the right side of the elderly person is activated. The specific working principle is the same as that of the anti-fall component 34 located on the left side of the elderly person, and will not be described again here.

[0040] Example 1

[0041] Based on Embodiment 1, unlike Embodiment 1, the stabilization mechanism 3 provided in this embodiment of the invention also includes a stabilization component 35 for preventing elderly people from falling on the spot due to loss of consciousness and weakness in their lower limbs. The stabilization component 35 is fixedly connected to the waist belt 5 and the balance bar body 33a respectively. Specifically, the stabilization component 35 includes a connector 35a, a limiting cylinder 35b, a squeezing column 35c, and a stabilization clamp 35d; like Figure 3 As shown, the connector 35a includes a connecting plate, and a second connecting cylinder is fixedly provided on the upper surface of the connecting plate. The second connecting cylinder is used to be fixedly connected to the first connecting cylinder provided on the bottom surface of the balance bar body 33a, and two connecting posts are fixedly provided on the bottom surface of the connector 35a; Figure 11 As shown, the ends of the two connecting columns furthest from the T-shaped connecting plate are rotatably connected to the stabilizing clamp 35d.

[0042] The stabilizing clamp 35d includes two clamping rods that are fixedly connected by springs. The two clamping rods have a hook-shaped structure, and each clamping rod includes an arc-shaped part and a pressing part connected to the arc-shaped part. The two clamping rods have symmetrically arranged arc-shaped portions to form a receiving cavity to encircle the lower limbs of the elderly person; the two clamping rods have symmetrically arranged squeezing portions, and grooves are provided on two opposite sides of the two squeezing portions, forming a channel between the two grooves to facilitate the passage of the squeezing column 35c. In this way, after the squeezing column 35c is inserted into the channel, the squeezing parts of the two clamping rods move away from each other under the action of the squeezing column 35c, thereby bringing the arc-shaped parts of the two clamping rods closer to each other, thus fixing the waist of the elderly and preventing the elderly from falling on the spot due to loss of consciousness and weakness of the lower limbs.

[0043] like Figure 6 and Figure 9 As shown, the limiting cylinder 35b is fixedly disposed on the upper surface of the balance bar body 33a, and the opening of the limiting cylinder 35b is provided with a slot for engaging with the extrusion column 35c. An anti-detachment plate is fixedly provided at the upper end of the extrusion column 35c, and the lower end passes through the limiting cylinder 35b and is located at the upper end of the channel of the stabilizing clamp 35d; the side of the extrusion column 35c is fixedly connected to the ring belt 5 through the connecting column; specifically, the bottom surface of the anti-detachment plate at the upper end of the extrusion column 35c is also provided with a card block that cooperates with the card groove on the limiting cylinder 35b. In practical applications, the corners of the locking blocks on the extrusion column 35c and the side walls of the slots on the limiting cylinder 35b are rounded. This way, even if the elderly person rotates at any angle in place, causing the locking blocks and slots to be positioned vertically, the locking blocks on the extrusion column 35c will move downwards along the side walls of the slots under the influence of the elderly person's own gravity until each locking block enters the slot, thus fixing the extrusion column 35c and preventing it from rotating, thereby preventing the elderly person from rotating in place.

[0044] The reset element 35e is sleeved on the outside of the limiting cylinder 35b, and the upper end of the reset element 35e is fixedly connected to the anti-detachment piece at the upper end of the extrusion column 35c. Thus, after use, the extrusion column 35c returns to its initial position under the action of the reset element 35e for normal use. It should be noted that the specific structure of the reset element 35e is not limited in this embodiment of the invention; preferably, the reset element 35e is a spring.

[0045] The working principle of the stabilization component 35 provided in this embodiment of the invention is as follows: During normal use, the elderly person is positioned within the waist belt 5 and can rotate freely, ensuring their normal life. When the elderly person falls, their lower limbs become weak and they fall from their original position, eventually falling in any direction. Therefore, before the elderly person falls, the waist belt 5 causes the squeezing column 35c to move downwards synchronously. At this time, the locking block on the squeezing column 35c and the locking groove on the limiting cylinder 35b cooperate with each other to prevent the waist belt 5 from rotating, thereby preventing the elderly person from falling in the direction of their own sides. At the same time, the squeezing column 35c enters the channel of the stabilizing clamp 35d under the action of the elderly person's own weight, so that the arc-shaped parts of the two clamping rods in the stabilizing clamp 35d come closer to each other, thereby fixing the elderly person's waist and preventing the elderly person from falling further, thus improving the efficiency of preventing elderly people from falling. If the balancer 4 detects that the movable base 1 has a tendency to tilt forward during the process of the elderly person losing support and falling from the ground, the driver 31 will be activated, just like when the elderly person falls forward. The output end of the driver 31 will rotate clockwise, causing each movable handrail 32 to move towards the side closer to the elderly person. At this time, under the meshing connection of the rotating gear 31a and the second rack 33b, the second rack 33b will slide away from the elderly person in the groove, so that the movable handrail 32 extends to below the elderly person's armpit to provide support for the elderly person's upper body. At the same time, the second rack 33b will drive the balance bar body 33a to move backward. The balance bar body 33a will drive the elderly person's upper body to move backward through the waist belt 5 in order to straighten the elderly person's body. If the balancer 4 detects that the movable base 1 has a tendency to tilt backward or to the side, the drive 31 rotates in the opposite direction to prevent the elderly from falling backward, or the anti-fall component 34 is used to prevent the elderly from falling to the sides.

[0046] Application Cases Mr. Wu, 68 years old, has difficulty moving around and suffers from hypertension. He uses the walker provided in this embodiment of the invention to prevent falls in his daily care. When in use, the waist belt 5 is put around the elderly person's waist, and the inflation of the waist belt 5 is adjusted to match the elderly person's different body types. The elderly person can also rotate the waist belt 5 synchronously. At this time, the movable base 1 is located behind the elderly person, which does not affect the elderly person's vision and is beneficial to the elderly person's daily life. If an elderly person falls, it includes the following four situations: Scenario 1: An elderly person falls forward due to tripping over an external object or other reasons. If the balancer 4 detects that the movable base 1 is tilted forward, it means that the elderly person has fallen forward. At this time, the output end of the driver 31 rotates clockwise, causing each movable handrail 32 to move towards the side closer to the elderly person. At this time, under the meshing connection of the rotating gear 31a and the second rack 33b, the second rack 33b slides away from the elderly person in the groove, so that the balance bar body 33a can drive the upper body of the elderly person backward through the waist belt 5, so as to straighten the elderly person's body. At the same time, the first rack moves forward under the action of the rotating gear 31a until the movable handrail 32 extends to below the armpit of the elderly person, providing further support for the upper body of the elderly person; Scenario 2: Elderly people fall backward due to tripping over external objects or other reasons. When the balancer 4 detects that the elderly person's movable base 1 is tilted backward, it indicates that the elderly person has fallen backward. At this time, the output end of the driver 31 rotates counterclockwise, causing each movable handrail 32 to move away from the elderly person. At this time, under the meshing connection of the rotating gear 31a and the second rack 33b, the second rack 33b moves towards the elderly person, so that the second rack 33b provides a forward support force to the elderly person's back through the balance bar body 33a, thereby correcting the elderly person's posture. Scenario 3: An elderly person falls to the left or right. When the balancer 4 detects that the movable base 1 is tilted to the left, it indicates that the elderly person has fallen to the left. At this time, the balancing hydraulic rod 34b in the anti-fall component 34 located on the left side of the elderly person is activated. The movable end of the balancing hydraulic rod 34b extends, thereby switching the movable base 1 from the tilted state to the horizontal state, thus keeping the stabilization mechanism 3 in a horizontal state and preventing the elderly person from falling. When the balancer 4 detects that the elderly person has fallen to the right, the anti-fall component 34 located on the right side of the elderly person is activated. The specific working principle is the same as that of the anti-fall component 34 located on the left side of the elderly person, and will not be described again here. Scenario 4: Elderly people fall due to weakness in their lower limbs caused by loss of consciousness or other reasons. When an elderly person falls, their lower limbs become weak and they fall from their original position, which may lead to them falling in any direction. Therefore, during the process of the elderly person falling from their original position, the elderly person moves the squeezing column 35c downwards in sync with the waist belt 5. At this time, the locking block on the squeezing column 35c and the locking groove on the limiting cylinder 35b cooperate with each other to prevent the waist belt 5 from rotating, thereby preventing the elderly person from falling in the direction of their own sides. At the same time, the squeezing column 35c enters the channel of the stabilizing clamp 35d under the action of the elderly person's own weight, so that the arc-shaped parts of the two clamping rods in the stabilizing clamp 35d come closer to each other, thereby fixing the elderly person's waist and preventing the elderly person from falling further, thus improving the efficiency of preventing elderly people from falling. If an elderly person falls to one side, that is, if the balancer 4 detects that the movable base 1 has a tendency to tilt forward, the same as when the elderly person falls forward, the driver 31 is activated. The output end of the driver 31 rotates clockwise, causing each movable handrail 32 to move towards the side closer to the elderly person. At this time, under the meshing connection of the rotating gear 31a and the second rack 33b, the second rack 33b slides away from the elderly person in the groove, causing the movable handrail 32 to extend below the elderly person's armpits to provide support for the elderly person's upper body. At the same time, the second rack 33b drives the balance bar body 33a to move backward. The balance bar body 33a drives the elderly person's upper body to move backward through the waist belt 5 in order to straighten the elderly person's body. If an elderly person falls backward, to the left, or to the right, the actuator 31 or the anti-fall component 34 can be used to correct the elderly person's posture. For details, please refer to Situations 1 to 3 above, which will not be repeated here.

[0047] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A walking aid for preventing falls in the elderly, comprising a waist belt (5), characterized in that, Also includes: Mobile base (1); Two height adjustment links (2) are both located above the movable base (1), and the bottom end of each height adjustment link (2) is connected to the movable base (1); The stabilization mechanism (3) is located above the height adjustment link (2) and is connected to the movable base (1), the top of the height adjustment link (2) and the waist belt (5). It is used to maintain the balance of the elderly and prevent the elderly from falling forward, backward, left or right. The balancer (4) is mounted on the movable base (1).

2. The walking aid for preventing falls in the elderly according to claim 1, characterized in that, The stability maintenance agencies (3) include: Two drivers (31) are connected to the corresponding height adjustment linkage (2) respectively, and each driver (31) has a rotary gear (31a) on its output end. Both movable handrails (32) are mounted on the corresponding height adjustment linkages (2); Two first racks are respectively disposed inside the corresponding movable handrail (32); and each first rack is meshed with the corresponding rotating gear (31a); A balance bar (33) is set between two movable handrails (32), and the two ends of the balance bar (33) are slidably connected to the movable handrails (32) on the same side, and the middle part of the balance bar (33) is connected to the waist belt (5); Two anti-side-fall components (34) are respectively mounted on the mobile base (1).

3. A walking aid for preventing falls in the elderly according to claim 2, characterized in that, The stabilizer bar (33) includes: The stabilizer bar body (33a) has a C-shaped structure; mounting grooves are provided at both ends of the stabilizer bar body (33a); Two second racks (33b) are respectively disposed at both ends of the balance bar body (33a), and each second rack (33b) passes through the corresponding movable handrail (32) and engages with the rotating gear (31a).

4. A walking aid for preventing falls in the elderly according to claim 3, characterized in that, The four corners of the bottom surface of the movable base (1) are equipped with movable wheels (6).

5. A walking aid for preventing falls in the elderly according to claim 4, characterized in that, Each anti-fall component (34) includes: The movable wheel mounting bracket (34a) is rotatably connected to the movable wheel (6); A balancing hydraulic rod (34b) is mounted on a moving wheel mounting bracket (34a), and the output end of the balancing hydraulic rod (34b) is connected to the bottom surface of the moving base (1).

6. A walking aid for preventing falls in the elderly according to claim 2, characterized in that, It also includes a stabilization component (35) to prevent elderly people from falling in place; the stabilization component (35) includes: A connecting bracket (35a) is provided on the bottom surface of the balance bar (33); A limiting cylinder (35b) is provided on the upper surface of the balance bar (33), and a slot is provided at the end of the limiting cylinder (35b) away from the balance bar (33); The extrusion column (35c) passes through the limiting cylinder (35b) and the connecting frame (35a) in sequence at its lower end and is located below the limiting cylinder (35b). The upper end of the extrusion column (35c) is provided with a toothed ring for connecting with the slot. The stabilizing clamp (35d) is located at the bottom of the connecting frame (35a) and is in contact with the extrusion column (35c).

7. A walking aid for preventing falls in the elderly according to claim 6, characterized in that, The stabilizing clamp (35d) includes two spring-connected clamping rods, with a channel formed between the ends of the two clamping rods to facilitate the passage of the compression column (35c).

8. A walking aid for preventing falls in the elderly according to claim 6, characterized in that, A reset element (35e) is also provided between the limiting cylinder (35b) and the extrusion column (35c).

9. A walking aid for preventing falls in the elderly according to claim 1, characterized in that, A seat plate (7) is also provided between the two height adjustment links (2), and the two sides of the seat plate (7) are respectively connected to the height adjustment links (2) on the same side.

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