Walking aid for old people

Abstract

The invention relates to the technical field of walking aid for old people, in particular to a walking aid for old people, which comprises a waist fixing ring, two groups of curved base plates for fitting buttocks are symmetrically and fixedly connected to the side surface of the waist fixing ring, leg fixing rings are fixedly connected to one sides of the two groups of curved base plates, and shaft seats are fixedly connected to the other sides of the two groups of curved base plates; supporting assemblies used for assisting walking are installed on the two sets of shaft seats in a clamped mode, curvature supporting pieces are fixedly connected to the lower ends of the two sets of supporting assemblies, and foot fixing sleeves are connected to the ends of the curvature supporting pieces in a clamped mode. The device is worn on the waist, the thighs and the feet of an old person through the waist fixing ring, the leg fixing rings and the foot fixing sleeves, the device is integrated with the old person in a wearing mode, disassembly, assembly, use and carrying are convenient, and the pressurizing assembly and the force-borrowing assembly which can move relatively are arranged; oblique forward force feeding is achieved through the relation between the air pressure and the pressure intensity and the curvature supporting piece, a high-power motor does not need to be used, and meanwhile the operation level of the old is lowered.

Description

Technical Field

[0001] The invention relates to the field of elderly walking assistance, in particular to an elderly walking assistance device. Background Art

[0002] As they age, the physical condition of the elderly becomes worse and worse, their leg conditions deteriorate, and they lack strength, so they need some walking aids to assist them in walking. Walking aids for the elderly are generally divided into two types: lever-assisted walking and active force-assisted walking. They are assistive devices designed to help the elderly actively move and ascend based on their inconvenient legs and feet and difficulty in active travel.

[0003] In the prior art, there is a walker for elderly care proposed in patent application No. "CN202023110547.7", in which a pulley is fixedly connected to the bottom of the support column. The elderly or patients hold the push handle to exercise walking, and the pulley can be used to move more conveniently and labor-savingly, providing power for it. For example, the multifunctional device of crutch and walker proposed in patent application No. "CN202120354191.7" can be combined together as a walker, or disassembled and used as two independent crutches, which effectively reduces the burden on patients and saves indoor space.

[0004] However, the prior art has defects. No matter whether it is a hand-pushed walker or a crutch walker, they are all external walking aids, that is, the purpose is to assist the user in walking. The device and the user are too independent and not well integrated, which makes it inconvenient to use. In addition, the device is large in size and not portable. Therefore, a walking aid device for the elderly is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a walking aid for the elderly to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A walking aid for the elderly, comprising a waist fixing ring, two groups of curvature pads for fitting the buttocks are symmetrically fixedly connected to the side of the waist fixing ring, one side of the two groups of curvature pads are fixedly connected to the leg fixing ring, and the other side is fixedly connected to the shaft seat, and the two groups of shaft seats are clamped and installed with support components for assisting walking, and the lower ends of the two groups of support components are fixedly connected to the curvature support pieces, and the ends of the curvature support pieces are clamped and connected to the foot fixing sleeves;

[0008] The support assembly includes a connecting assembly, a pressurizing assembly and a leveraging assembly. The connecting assembly is clamped and installed with the axle seat, the pressurizing assembly is fixed to the lower end of the connecting assembly, the upper end of the curvature support is fixed to the lower end of the pressurizing assembly, the leveraging assembly is located inside the pressurizing assembly, and the leveraging assembly cooperates with the pressurizing assembly.

[0009] Preferably, the connecting assembly includes a connecting shaft, a connecting seat is fixedly connected to the side wall of the connecting shaft, the pressurizing assembly is fixedly connected to the connecting seat, an elastic part is slidably connected inside the connecting shaft, the elastic part is symmetrically arranged, and both ends of the elastic part respectively pass through both ends of the connecting shaft, and the two ends of the connecting shaft are clamped with the shaft seat through the elastic part.

[0010] Preferably, a sliding groove is provided on the side wall of the connecting shaft, and pinching pieces are fixedly connected to the side walls at both ends of the elastic piece, and two groups of pinching pieces are slidably connected in the sliding groove.

[0011] Preferably, the pressurizing assembly includes a connecting cylinder and a pressurizing cylinder, the upper end of the connecting cylinder is fixedly connected to the lower end of the connecting seat via an outer pressing piece, a pressurizing piston is fixedly connected to the lower end of the connecting cylinder, a pressurizing sealing ring is glued to the lower end of the pressurizing piston, a lever cylinder is fixedly connected to the middle of the pressurizing cylinder, the area between the pressurizing cylinder and the lever cylinder is the pressurizing zone, and the pressurizing piston and the pressurizing sealing ring are both slidably connected in the pressurizing zone.

[0012] Preferably, the leveraging component includes an inner upper top plate, which is slidably connected to an outer lower pressure piece, an inner upper top rod is fixedly connected to the lower end of the inner upper top plate, the inner upper top rod is inserted into the interior of a connecting tube, a leveraging piston is fixedly connected to the lower end of the inner upper top rod, a pressure reducing sealing ring is bonded to the lower end of the leveraging piston, both the leveraging piston and the pressure reducing sealing ring are slidably connected to the interior of the leveraging tube, the internal area of ​​the leveraging tube is a leveraging zone, and there is one-way flow between the leveraging zone and the pressurizing zone.

[0013] Preferably, the side wall of the pressurizing cylinder is provided with an external air inlet, and the inner wall of the pressurizing cylinder is rotatably connected to a sealing valve plate 1 for controlling the one-way flow of the external air inlet; the side wall of the leveraging cylinder is provided with an internal air inlet for connecting the pressurizing area and the leveraging area, and the inner wall of the leveraging cylinder is rotatably connected to a sealing valve plate 2 for controlling the one-way flow of the internal air inlet.

[0014] Preferably, a slot is provided on the side wall of the connecting cylinder, a vent is provided on the side wall of the lever cylinder, the vent is located above the inner air inlet, and a sealing valve plate three for controlling one-way flow of the vent is rotatably connected to the outer wall of the lever cylinder, and the sealing valve plate three is located in the slot.

[0015] Preferably, a valve seat is fixedly connected inside the lever cylinder, the valve seat is located between the internal air inlet and the lever piston, an air vent is penetrated through the upper end of the valve seat side wall, a push plate is sealingly and slidably connected inside the valve seat, and a spring is fixed between the push plate and the inside of the valve seat.

[0016] Beneficial effects of the present invention:

[0017] The present invention allows the device to be worn on the waist, thighs and feet of the elderly through a waist fixing ring, a leg fixing ring and a foot fixing sleeve. The device is integrated with the wearable style of the elderly and is easy to use. A pressurizing component and a lever component that can move relatively to each other are provided. The oblique forward force is delivered through the relationship between air pressure and pressure and through a curved support member. When in use, the elderly only needs to lift their legs to a certain angle and then press down naturally. The pressurizing component pressurizes the lever component, and the lever component assists in upward movement. Not only does it not require the use of a high-power motor, but it also reduces the operating level of the elderly. In addition, the support component and the wearable component on the body are detachable, which reduces the volume and makes the device easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall back side of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the support assembly of the present invention;

[0022] Figure 4 yes Figure 3 A schematic diagram of the structure at A;

[0023] Figure 5 yes Figure 3 A schematic diagram of the structure at B;

[0024] Figure 6 It is a schematic diagram of the structure of the connecting tube of the present invention;

[0025] Figure 7 is a schematic cross-sectional structural diagram of a connection assembly of the present invention;

[0026] The reference numerals in the figures are as follows:

[0027] 1. Waist fixing ring; 2. Curvature pad; 3. Leg fixing ring; 4. Velcro; 5. Axle seat; 6. Connecting shaft; 8. Slide groove; 9. Elastic part; 11. Pressing part; 12. Connecting seat; 13. Outer layer lower pressure part; 14. Inner layer upper top plate; 15. Connecting cylinder; 16. Pressurizing cylinder; 17. Inner layer upper top rod; 18. Notch; 19. Leverage piston; 20. Decompression sealing ring; 21. Leverage cylinder; 22. Pressurizing piston; 23. Pressurizing sealing ring; 24. Inner air inlet; 25. Outer air inlet; 26. Sealing valve plate one; 27. Sealing valve plate two; 28. Valve seat; 29. ​​Vent; 30. Push plate; 31. Spring; 32. Vent; 33. Sealing valve plate three; 34. Curvature support; 35. Foot fixing sleeve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] A walking aid for the elderly, such as Figure 1-Figure 7 The waist fixing ring 1 comprises two groups of curvature pads 2 for fitting the buttocks symmetrically fixed on the side of the waist fixing ring 1, one side of the two groups of curvature pads 2 are fixedly connected to the leg fixing ring 3, and the other side is fixedly connected to the shaft seat 5, and the two groups of shaft seats 5 are clamped and installed with support components for assisting walking. The lower ends of the two groups of support components are fixedly connected to curvature support members 34, and the ends of the curvature support members 34 are clamped and connected to the foot fixing sleeves 35. The curvature support members 34 are high-strength pressure-resistant tubes with a certain curvature. The waist fixing ring 1 and the leg fixing rings 3 are both worn on the waist and thighs of the elderly by Velcro 4, which can better adapt to different waist and leg circumferences, so that the device can be integrated with the legs of the elderly, which is easy to use. The upper end of the support component is clamped and rotatably connected to the shaft seat 5, and the lower end is clamped and rotatably connected to the foot fixing sleeve 35. The connection method and principle of the two parts are the same, which is convenient for the support component to be disassembled. When transporting the device, the disassembly can reduce the volume and facilitate carrying.

[0030] The support assembly includes a connecting assembly, a pressurizing assembly and a leveraging assembly. The connecting assembly is clamped and installed with the axle seat 5. The pressurizing assembly is fixed to the lower end of the connecting assembly. The upper end of the curvature support member 34 is fixed to the lower end of the pressurizing assembly. The leveraging assembly is located inside the pressurizing assembly, and the leveraging assembly cooperates with the pressurizing assembly.

[0031] The end of the support component is installed through the connecting component, so that the support component is easy to disassemble and assemble. The connecting component is also installed between the curvature support member 34 and the foot fixing sleeve 35. A pressurizing component and a lever component that can move relatively are set. The relationship between air pressure and pressure and the curvature support member 34 are used to realize oblique forward force delivery. When in use, the elderly only need to lift their legs to a certain angle, the curvature pad 2 is naturally pressed down, the inside of the pressurizing component is pressurized, and the lever component is pressurized. After the lever component is pressurized to a certain degree, the lever component will assist the legs to move upward. Not only does it not need to use a high-power motor to generate thrust, but it also reduces the operating level of the elderly. The support component and the wearable parts on the body are detachable, which reduces the volume and makes the device easy to carry.

[0032] like Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, the connecting assembly includes a connecting shaft 6, a connecting seat 12 is fixedly connected to the side wall of the connecting shaft 6, the pressurizing assembly is fixedly connected to the connecting seat 12, an elastic member 9 is slidably connected inside the connecting shaft 6, the elastic member 9 is symmetrically arranged, and both ends of the elastic member 9 respectively pass through both ends of the connecting shaft 6, and the two ends of the connecting shaft 6 are clamped with the shaft seat 5 through the elastic member 9.

[0033] The two ends of the elastic member 9 are plugged into the side walls of the shaft seat 5 to enable the shaft seat 5 and the connecting shaft 6 to be installed. Under the action of the elastic member 9, the shaft seat 5 and the connecting shaft 6 will not be separated. The shape of the end of the elastic member 9 is set to be cylindrical, so that the connecting shaft 6 and the shaft seat 5 can be clamped and rotatably connected.

[0034] like Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, a slide groove 8 is provided on the side wall of the connecting shaft 6 , and pinching members 11 are fixedly connected to the side walls at both ends of the elastic member 9 , and two sets of pinching members 11 are slidably connected in the slide groove 8 .

[0035] When installing the connecting assembly, pinch the two sets of pinching pieces 11 at the same time to make the elastic piece 9 slide and compress, dock the connecting shaft 6 in the shaft seat 5, release the pinching piece 11, both ends of the elastic piece 9 are plugged into the shaft seat 5, and the connecting shaft 6 and the shaft seat 5 are connected. When removing the connecting piece, pinch the pinching piece 11 to make the two ends of the elastic piece 9 separate from the shaft seat 5, and the connecting shaft 6 and the shaft seat 5 can be disconnected. The connection is made through the connecting piece and can be rotated, which is convenient for disassembly and assembly.

[0036] like Figure 1-Figure 6As shown, the pressurizing assembly includes a connecting cylinder 15 and a pressurizing cylinder 16. The upper end of the connecting cylinder 15 is fixedly connected to the lower end of the connecting seat 12 via an outer layer pressing piece 13. A pressurizing piston 22 is fixedly connected to the lower end of the connecting cylinder 15. A pressurizing sealing ring 23 is glued to the lower end of the pressurizing piston 22. Both the pressurizing piston 22 and the pressurizing sealing ring 23 are circular rings. A lever cylinder 21 is fixedly connected to the middle of the pressurizing cylinder 16. The area between the pressurizing cylinder 16 and the lever cylinder 21 is a pressurizing zone. Both the pressurizing piston 22 and the pressurizing sealing ring 23 are slidably connected in the pressurizing zone.

[0037] The central axes of the pressurizing piston 22, the pressurizing sealing ring 23, the connecting tube 15 and the lever cylinder 21 are all aligned. The pressurizing piston 22 and the pressurizing sealing ring 23 seal the inner wall of the pressurizing tube 16 and the outer wall of the lever cylinder. When the elderly lift their legs to a certain angle, the curvature pad 2 is naturally pressed down, and the connecting tube 15 is driven down through the connecting assembly and the outer layer pressing member 13, so that the pressurizing piston 22 and the pressurizing sealing ring 23 are lowered inside the pressurizing area, compressing the air inside the pressurizing area and increasing the pressure in the pressurizing area.

[0038] like Figure 1 As shown, the leveraging component includes an inner layer upper top plate 14, which is slidably connected to the outer layer lower pressure piece 13, and the lower end of the inner layer upper top plate 14 is fixedly connected to an inner layer upper push rod 17, and the inner layer upper push rod 17 is inserted into the connecting tube 15, and the lower end of the inner layer upper push rod 17 is fixedly connected to a leveraging piston 19, and the lower end of the leveraging piston 19 is bonded with a pressure reducing sealing ring 20, and the leveraging piston 19 and the pressure reducing sealing ring 20 are both slidably connected to the inside of the leveraging tube 21, and the internal area of ​​the leveraging tube 21 is the leveraging area, and there is one-way flow between the leveraging area and the pressurizing area.

[0039] When the pressurized area is pressurized, the pressurized area will pressurize the leverage area. When the internal pressure of the leverage area increases to a certain level, the pressure reducing sealing ring 20 and the leverage piston 19 will be squeezed, so that the leverage piston 19 will squeeze the inner layer upper push rod 17 upward, and the inner layer upper push rod 17 will assist the user's legs in walking through the inner layer upper top plate 14. There is a certain degree of freedom of relative movement between the pressurized component and the leverage component, and there are also certain constraints. When pressing down, the pressurized component is pressed first, and after the pressurized component is pressurized to a certain level, it pushes up the leverage component, so that pressurization and leverage are carried out in sequence.

[0040] By setting the force-bearing area of ​​the pressurizing piston 22 to be much larger than the force-bearing area of ​​the lever piston 19, under the same air pressure, the pressure required to be applied by the pressurizing piston 22 is smaller, and the force transmitted upward by the lever piston 19 under the influence of the air pressure is greater. Unlike other leveraging devices that have force loss or active assistance that requires a large amount of electricity, this device is more efficient, consumes very little energy, is green and environmentally friendly, and is convenient and durable.

[0041] like Figure 3-Figure 5As shown, the side wall of the pressurizing cylinder 16 is provided with an external air inlet 25, and the inner wall of the pressurizing cylinder 16 is rotatably connected with a sealing valve plate 26 for controlling the one-way flow of the external air inlet 25; the side wall of the leveraging cylinder 21 is provided with an internal air inlet 24 for connecting the pressurizing area and the leveraging area, and the inner wall of the leveraging cylinder 21 is rotatably connected with a sealing valve plate 27 for controlling the one-way flow of the internal air inlet 24.

[0042] After the user completes a walking assistance step, the step continues, the pressurizing piston 22 needs to move upward, the air pressure inside the pressurizing area decreases, the external air inlet 25 opens, and the external air enters the pressurizing area, so that the air pressure in the pressurizing area returns to a balanced state, all structures are reset, and are ready for the next pressurization.

[0043] The increase in internal pressure in the pressurized area will push the sealing valve plate 2 27 to open, increasing the pressure inside the leverage area. The sealing valve plate 1 26 and the sealing valve plate 27 both rotate in one direction, allowing the external air inlet 25 and the internal air inlet 24 to flow in one direction, preventing the pressure in the pressurized area from leaking through the external air inlet 25, and also allowing the pressure inside the leverage area to be increased, thereby facilitating the restoration of balance in the pressurized area.

[0044] like Figure 3-Figure 5 As shown, a slot 18 is provided on the side wall of the connecting cylinder 15, and a vent 32 is provided on the side wall of the lever cylinder 21. The vent 32 is located above the inner air inlet 24. A sealing valve plate 33 is rotatably connected to the outer wall of the lever cylinder 21 for controlling one-way flow of the vent 32. The sealing valve plate 33 is located in the slot 18.

[0045] When the air pressure in the levering area increases, the levering piston 19 is pushed up, and the levering piston 19 slides up in the levering cylinder 21, and the air pressure inside the levering area continues to increase until the levering piston 19 slides above the vent 32 (the original position of the pressurizing piston 22 is below the vent 32, so it will never slide above the vent 32), and the levering area is connected to the vent 32, squeezing the sealing valve plate 33 to open it, and the air pressure inside the levering area is discharged through the vent 32, so that the air pressure in the levering area can be restored to prepare for the next operation.

[0046] Sealing valve plate 1 26, sealing valve plate 27 and sealing valve plate 3 33 are respectively sealed against the wall of pressurizing cylinder 16 or the wall of lever cylinder 21, and springs 31 and other structures are arranged inside the rotating ends of the three to restore the sealing state, and the three are squeezed open by air pressure difference.

[0047] like Figure 3-Figure 4 As shown, a valve seat 28 is fixedly connected inside the lever cylinder 21, and the valve seat 28 is located between the internal air inlet 24 and the lever piston 19. A venting port 29 is penetrated through the upper end of the side wall of the valve seat 28, and a push plate 30 is sealingly and slidably connected inside the valve seat 28. A spring 31 is fixed between the push plate 30 and the inside of the valve seat 28.

[0048] When the air pressure in the lower part of the leveraging area reaches a certain intensity, the gas squeezes the push plate 30 and compresses the spring 31. The high-pressure gas enters the upper part of the leveraging area through the air vent 29, which has a certain stagnation effect on the high-pressure gas, so that when the pressurizing component starts to run, the leveraging component will not run synchronously. Only when the pressurizing component runs to the point where the valve seat 28 opens, the leveraging component starts to run. The two can run in sequence, thereby preventing the pressurizing component and the leveraging component from reacting at the same time and gradually assisting the user's movements.

[0049] The working principle of the walking aid device for the elderly provided by the present invention is as follows:

[0050] When the user needs to wear it, first wear the leg fixing ring 3 on the appropriate position of the user's leg, the user's buttocks can fit the curvature pad 2, at this time the user's feet can be put into the foot fixing sleeve 35, and finally the waist fixing ring 1 is tightened and glued around the user's waist. When the user lifts his legs, the buttocks will sink due to insufficient leg strength, driving the outer layer pressing member 13 to press down, and the downward pressure is transmitted to the connecting tube 15 and the pressurizing piston 22 in turn. The pressurizing sealing ring 23 ensures the sealing of the pressurizing area. The air pressure in the pressurizing area increases, and the sealing valve plate 27 is opened, so that the air pressure in the leveraging area increases. When the pressure rises to a certain level, the valve seat 28 opens, and the high air pressure, under the action of the decompression sealing ring 20, causes the leveraging piston 1 9 obtains a larger upward force, and transmits the force to the inner upper push rod 17 and the inner upper top plate 14 in turn. The inner upper top plate 14 pushes the user obliquely forward and upward through the connecting component and the curvature pad 2 to assist walking. After the user completes the upward movement, the pressurizing piston 22 needs to move upward. At this time, the sealing valve plate 26 opens, and the external air enters the pressurizing area, so that the air pressure in the pressurizing area returns to a balanced state, and each structure is reset and prepared for the next pressurization. The device is integrated with the wearable type of the elderly and is easy to use. It not only does not require the use of high-power motors, but also reduces the operating level of the elderly. The support component and the wearable part on the body are detachable, which reduces the volume and makes the device easy to carry.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A walking aid for the elderly, comprising a waist fixing ring (1), characterized in that: The waist fixing ring (1) is symmetrically fixedly connected to two groups of curvature pads (2) for fitting the buttocks on the side, and the two groups of curvature pads (2) are fixedly connected to the leg fixing ring (3) on one side and to the shaft seat (5) on the other side. The two groups of shaft seats (5) are clamped and installed with support components for assisting walking, and the lower ends of the two groups of support components are fixedly connected to curvature support members (34), and the ends of the curvature support members (34) are clamped and connected to the foot fixing sleeves (35); The support assembly comprises a connecting assembly, a pressurizing assembly and a lever assembly, the connecting assembly is snap-fitted to the shaft seat (5), the pressurizing assembly is fixedly connected to the lower end of the connecting assembly, the upper end of the curvature support member (34) is fixedly connected to the lower end of the pressurizing assembly, the lever assembly is located inside the pressurizing assembly, and the lever assembly cooperates with the pressurizing assembly.

2. The walking aid device for the elderly according to claim 1, characterized in that: The connecting assembly comprises a connecting shaft (6), a connecting seat (12) is fixedly connected to the side wall of the connecting shaft (6), the pressurizing assembly is fixedly connected to the connecting seat (12), an elastic member (9) is slidably connected inside the connecting shaft (6), the elastic member (9) is symmetrically arranged in shape, two ends of the elastic member (9) respectively penetrate two ends of the connecting shaft (6), and the two ends of the connecting shaft (6) are clamped with the shaft seat (5) via the elastic member (9).

3. The walking aid device for the elderly according to claim 2, characterized in that: The side wall of the connecting shaft (6) is provided with a sliding groove (8), and the side walls at both ends of the elastic member (9) are fixedly connected with pinching members (11), and the two groups of pinching members (11) are slidably connected in the sliding groove (8).

4. The walking aid device for the elderly according to claim 2, characterized in that: The pressurizing assembly comprises a connecting cylinder (15) and a pressurizing cylinder (16); the upper end of the connecting cylinder (15) is fixedly connected to the lower end of the connecting seat (12) via an outer layer pressing piece (13); a pressurizing piston (22) is fixedly connected to the lower end of the connecting cylinder (15); a pressurizing sealing ring (23) is glued to the lower end of the pressurizing piston (22); a lever cylinder (21) is fixedly connected to the middle of the pressurizing cylinder (16); the area between the pressurizing cylinder (16) and the lever cylinder (21) is a pressurizing area; the pressurizing piston (22) and the pressurizing sealing ring (23) are both slidably connected in the pressurizing area.

5. The walking aid device for the elderly according to claim 4, characterized in that: The lever assembly comprises an inner upper top plate (14), which is slidably connected to an outer lower pressure piece (13); an inner upper top rod (17) is fixedly connected to the lower end of the inner upper top plate (14); the inner upper top rod (17) is inserted into the interior of a connecting tube (15); a lever piston (19) is fixedly connected to the lower end of the inner upper top rod (17); a pressure reducing seal ring (20) is bonded to the lower end of the lever piston (19); the lever piston (19) and the pressure reducing seal ring (20) are both slidably connected to the interior of a lever cylinder (21); the interior area of ​​the lever cylinder (21) is a lever area; and one-way flow is provided between the lever area and the pressurizing area.

6. The walking aid device for the elderly according to claim 5, characterized in that: The side wall of the pressurizing cylinder (16) is provided with an external air inlet (25), and the inner wall of the pressurizing cylinder (16) is rotatably connected to a sealing valve plate (26) for controlling the one-way flow of the external air inlet (25). The side wall of the leveraging cylinder (21) is provided with an internal air inlet (24) for connecting the pressurizing area and the leveraging area, and the inner wall of the leveraging cylinder (21) is rotatably connected to a sealing valve plate (27) for controlling the one-way flow of the internal air inlet (24).

7. The walking aid device for the elderly according to claim 6, characterized in that: The side wall of the connecting cylinder (15) is provided with a notch (18), the side wall of the lever cylinder (21) is provided with a vent (32), the vent (32) is located above the inner air inlet (24), and the outer wall of the lever cylinder (21) is rotatably connected with a sealing valve plate (33) for controlling one-way flow of the vent (32), the sealing valve plate (33) being located in the notch (18).

8. The walking aid device for the elderly according to claim 6, characterized in that: A valve seat (28) is fixedly connected inside the lever cylinder (21), and the valve seat (28) is located between the internal air inlet (24) and the lever piston (19). An air vent (29) is provided through the upper end of the side wall of the valve seat (28). A push plate (30) is sealingly and slidably connected inside the valve seat (28), and a spring (31) is fixedly connected between the push plate (30) and the inside of the valve seat (28).

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