Multifunctional walking aid convenient to operate for old people

Abstract

The invention discloses a convenient-to-operate multifunctional walking aid for old people, and belongs to the field of rehabilitation instruments, the convenient-to-operate multifunctional walking aid for old people comprises a frame body, the outer surface of the frame body is movably sleeved with a plurality of supporting legs, a plurality of positioning holes are formed in the supporting legs, and a plurality of limiting assemblies for limiting the supporting legs are connected to the interior of the frame body; the limiting assembly comprises two limiting pieces and adjusting assemblies, wherein the two limiting pieces are movably connected to the interior of the frame body, one ends of the limiting pieces are inserted into the adjacent positioning holes, the adjusting assemblies are movably connected to the interior of the frame body to conduct radial movement and drive the two limiting pieces to conduct axial movement, and the exterior of the frame body is connected with a plurality of traction parts used for pulling the adjusting assemblies to move correspondingly. According to the stair climbing device, the adjusting mode is more convenient, height adjustment can be achieved without relying on a heavy motor and a battery, a patient can easily lift and put down the stair climbing device in the stair climbing process, the burden of the upper limbs of the patient in the stair climbing process is relieved, and meanwhile the stair climbing device can better cope with different use scenes.

Description

Technical Field

[0001] The present invention relates to the field of rehabilitation devices, and more specifically, to a multifunctional walking aid for the elderly that is convenient to operate. Background Art

[0002] An elderly walking aid (also known as a gait assist device) is an auxiliary device used to assist the elderly with limited mobility or other people who need gait support. Its main function is to provide additional support and stability, reduce the risk of falling, and help the user maintain balance while walking.

[0003] Most of the existing walking aids have a height adjustment function. For example, an existing patent (a Chinese invention patent with the publication number CN107088141B) discloses a walking aid that can simultaneously achieve folding, twisting, and unilateral height adjustment. However, when adjusting the height of this walking aid, one hand needs to hold down the marble and then the other hand is used to adjust the height, and the adjustment method is not convenient enough; while an existing patent (a Chinese invention patent application with the publication number CN110812139A) discloses a walking aid that can be used for climbing stairs, and the height of the walking aid is adjusted by an electric adjustment method. Although the adjustment is more convenient, the design of the electric adjustment structure will cause the overall weight of the walking aid to be heavier, which brings inconvenience to the patient when using it, especially when it needs to be frequently lifted and put down during the climbing process. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a multifunctional walking aid for the elderly that is convenient to operate.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A multifunctional walking aid for the elderly that is convenient to operate, including a frame body,

[0007] A plurality of support feet are movably sleeved on the outer surface of the frame body, and a plurality of positioning holes are respectively opened inside the plurality of support feet. A plurality of limiting components for respectively limiting the plurality of support feet are connected inside the frame body;

[0008] The limiting component includes two limiting members that are movably connected inside the frame body and one end of which is inserted into the adjacent positioning holes, and an adjusting component that is movably connected inside the frame body and moves radially to drive the two limiting members to move axially. A plurality of traction parts for respectively pulling the plurality of adjusting components to move are connected to the outside of the frame body;

[0009] Wheel body support parts are respectively connected to the outside of two of the support feet, and the wheel body support part includes a fixed seat fixedly connected to the outside of the support foot, a sleeve movably sleeved on the outside of the support foot, a roller rotatably connected to one side of the sleeve, and an adjusting part connected inside the fixed seat and connected to the sleeve to drive the sleeve to lift.

[0010] Further, a first movable groove, a second movable groove communicating with the first movable groove, two avoidance grooves communicating with the second movable groove, and two third movable grooves are formed inside the frame body. The adjusting assembly includes a cylinder slidably connected in the first movable groove, a first spring located in the second movable groove and sleeved outside the cylinder, a movable seat slidably connected in the second movable groove and fixedly connected to the lower end of the cylinder, and two telescopic connecting rods connecting the two limiting members to the movable seat. The two limiting members are respectively slidably connected in the two third movable grooves, and the two ends of the two telescopic connecting rods are respectively rotatably connected to the movable seat and the limiting members. The two ends of the first spring are respectively connected to the inner wall of the second movable groove and the upper end of the movable seat.

[0011] Further, the traction part includes a pressing plate rotatably connected to the outer surface of the frame body through a torsion spring and a wire body with one end connected to the lower end of the pressing plate. The other end of the wire body penetrates into the frame body and is fixedly connected to the upper end of the cylinder.

[0012] Further, the adjusting part includes two guiding plates inserted into the fixed seat and a lead screw screwed inside the fixed seat. The lower ends of the two guiding plates penetrate the fixed seat and are fixedly connected to the upper end of the sleeve body. The lower end of the lead screw penetrates the fixed seat and is rotatably connected to the upper end of the sleeve body.

[0013] Further, a plurality of fourth movable grooves are also formed inside the frame body. A plurality of annular grooves are formed in the inner wall of the support leg. An inner support assembly is also connected inside the frame body. The inner support assembly includes an annular seat movably connected inside the frame body, a connecting rod with two ends respectively fixedly connected to the upper end of the annular seat and the lower end of the movable seat, a plurality of grooves formed on the outer surface of the annular seat, a plurality of first tooth keys integrally formed in the plurality of grooves, a plurality of inner support seats respectively slidably connected in the plurality of fourth movable grooves, a second tooth key formed on the upper ends of the plurality of inner support seats, and a plurality of transmission components rotatably connected inside the frame body and respectively drivingly connected to the first tooth key and the second tooth key. One end of the plurality of movable seats extends out of the fourth movable grooves, and the lower end of the movable seat contacts the inner wall of the annular groove.

[0014] Further, the transmission component includes two gears rotatably connected inside the frame body, two synchronous pulleys respectively fixedly connected to one side of the two gears, and a synchronous belt connecting the two synchronous pulleys. The two gears are respectively meshed with the first tooth key and the second tooth key.

[0015] Further, a plurality of lubricating and assisting moving parts are also connected inside the frame body. The lubricating and assisting moving parts include a ring body fixedly connected to the inner wall of the third moving groove and sleeved outside the limiting part, a scraping strip fixedly connected to the inner wall of the ring body and fitting on the outer surface of the limiting part, a groove body opened on the inner wall of the ring body, an oil discharge groove opened inside the ring body and communicated with the groove body, a plastic box body fixedly connected inside the frame body, an elastic valve sheet connected to the inner wall of the output port of the plastic box body, a sliding seat slidably connected inside the frame body, a second spring connected inside the frame body for resetting the sliding seat, an inclined surface two opened on one side of the sliding seat, and a pipe body connecting the output port of the plastic box body and the oil discharge groove. An inclined surface one matched with the inclined surface two is opened at the upper end of the movable seat.

[0016] Further, an oil injection port is opened on one side of the plastic box body, and a plurality of through holes parallel to the plurality of oil injection ports are opened inside the frame body. Sealing plugs are plugged inside the plurality of through holes.

[0017] Further, a plurality of adaptive supporting parts are connected to the lower end of the frame body. The adaptive supporting parts include a fifth moving groove opened at the lower end of the frame body, a plurality of guide rods fixedly connected inside the fifth moving groove, a supporting seat slidably connected inside the fifth moving groove and movably sleeved outside the plurality of guide rods, and a third spring located inside the fifth moving groove and connected to the supporting seat and the inner wall of the fifth moving groove at both ends. One end of the supporting seat passes out of the fifth moving groove and is connected with a supporting foot pad.

[0018] Further, two grips and a pulse oximeter are fixedly connected to the outside of the frame body. The pulse oximeter is located between one of the grips and one of the pressing plates. A bag body is fixedly connected to one side of the frame body, and a portable oxygen generator is stored in the bag body.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) This solution adopts the method of traction and limit adjustment. The adjustment component is driven to move by the traction part at the top of the frame body, thereby driving the limiting part to move, realizing the limitation of the supporting feet or moving the supporting feet. The structure is simple, and the adjustment method is more convenient. There is no need to rely on heavy motors and batteries to achieve height adjustment. Patients can easily lift and lower it during the process of climbing stairs, reducing the burden on the upper limbs of patients during the climbing process. At the same time, adjustable rollers are provided on the supporting feet. Before climbing stairs, the rollers are adjusted so that the rollers rise and cannot contact the ground, ensuring the stability of the four supporting feet of this walking aid during the climbing process, and avoiding the situation of the walking aid sliding or shifting caused by the rotation of the rollers during the climbing process. When not climbing stairs, the rollers can be adjusted to contact the ground, which is labor-saving and more smooth during use, and can better cope with different usage scenarios.

[0021] (2) The present scheme is provided with an inner support assembly, and a plurality of inner support seats evenly arranged in an annular shape inside the frame extend from the movable groove four and can enter the annular groove on the inner wall of the support leg. The inner support seat contacts the inner wall of the annular groove, thereby partially transmitting the lateral force borne by the support leg (such as the thrust when the user leans on it) to the frame, thereby reducing the shear force of the limit member and preventing the limit member from being damaged due to overload. The cooperation between the inner support seat and the annular groove forms multiple contact points, which is equivalent to adding multiple points of support between the support leg and the frame, reducing the shaking of the support leg when subjected to force and improving the overall rigidity. Even if the limit member fails accidentally (such as breaking), the cooperation between the inner support seat and the annular groove can still provide a certain limiting effect to prevent the support leg from sliding on the frame.

[0022] (3) The present solution is provided with a lubrication-assisting portion. When the movable seat moves upward in the movable groove 2, the movable seat pushes the sliding seat to move and causes the sliding seat to squeeze the plastic box body. The internal pressure of the plastic box body increases, pushing the elastic valve plate to deform, opening the channel, and the lubricating oil flows into the tube body and is discharged from the oil drain groove to lubricate the surface of the limiter, thereby reducing the sliding friction coefficient and making the limiter move more smoothly. It also reduces the friction between the outer surface of the limiter and the inner wall of the positioning hole, thereby avoiding scratches, wear or deformation on the surface of the limiter, extending the life of the limiter, and at the same time, the noise generated by the friction between the limiter and the positioning hole can be significantly reduced, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the outer surface of the frame of the present invention;

[0025] Figure 3 A cross-sectional view of a frame portion of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0027] Figure 5 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 6 It is a schematic diagram of the structure of the inner support assembly of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the lubrication and transfer-assisting part of the present invention;

[0030] Figure 8 It is a schematic diagram of the oil filling port and elastic valve plate structure of the present invention;

[0031] Figure 9 is a cross-sectional view of a support leg of the present invention;

[0032] Figure 10For the present invention Figure 9 Schematic enlarged view of the structure at position B in the present invention

[0033] Description of the reference numerals in the figure:

[0034] 1. Frame body; 11. Handle; 12. Pulse oximeter; 13. Bag body; 14. Portable oxygen generator; 15. First movable groove; 16. Second movable groove; 17. Avoidance groove; 18. Third movable groove; 19. Fourth movable groove; 2. Support leg; 21. Positioning hole; 22. Annular groove; 3. Limiting component; 31. Cylinder; 32. First spring; 33. Movable seat; 331. First inclined surface; 34. Telescopic connecting rod; 35. Limiting piece; 36. Wire body; 37. Pressing plate; 4. Wheel body support part; 41. Fixed seat; 42. Guide plate; 43. Lead screw; 44. Sleeve body; 45. Roller; 5. Inner support component; 51. Connecting rod; 52. Annular seat; 53. Groove; 54. First tooth key; 55. Gear; 56. Inner support seat; 57. Second tooth key; 58. Synchronous belt; 59. Synchronous pulley; 6. Lubrication and assisting movement part; 61. Ring body; 62. Scraping strip; 63. Groove body; 64. Oil discharge groove; 65. Plastic box body; 651. Elastic valve piece; 652. Oil injection port; 66. Sealing plug; 67. Pipe body; 68. Slide seat; 681. Second inclined surface; 69. Second spring; 7. Adaptive support part; 71. Fifth movable groove; 72. Guide rod; 73. Support seat; 74. Third spring; 75. Support foot pad. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1 to 10 , a multifunctional walking aid for the elderly that is easy to operate, including a frame body 1,

[0037] A plurality of support legs 2 are movably sleeved on the outer surface of the frame body 1, and a plurality of positioning holes 21 are respectively opened inside the plurality of support legs 2. A plurality of limiting components 3 for respectively limiting the plurality of support legs 2 are connected inside the frame body 1;

[0038] The limiting component 3 includes two limiting pieces 35 that are movably connected inside the frame body 1 and one end of which is inserted into the adjacent positioning holes 21, and an adjusting component that is movably connected inside the frame body 1 for radial movement and drives the two limiting pieces 35 to move axially. A plurality of traction parts for respectively pulling the plurality of adjusting components to move are connected outside the frame body 1;

[0039] Both of the two legs 2 are externally connected with wheel body supporting parts 4, and each wheel body supporting part 4 includes a fixed seat 41 fixedly connected to the outside of the leg 2, a sleeve 44 movably sleeved on the outside of the leg 2, a roller 45 rotatably connected to one side of the sleeve 44, and an adjusting part connected in the fixed seat 41 and connected to the sleeve 44 to drive the sleeve 44 to move up and down.

[0040] An active slot one 15, an active slot two 16 communicated with the active slot one 15, two avoidance slots 17 communicated with the active slot two 16, and two active slots three 18 are formed inside the frame body 1. The adjusting assembly includes a column body 31 slidably connected in the active slot one 15, a first spring 32 located in the active slot two 16 and sleeved on the outside of the column body 31, an active seat 33 slidably connected in the active slot two 16 and fixedly connected to the lower end of the column body 31, and two telescopic connecting rods 34 connecting the two limiting members 35 to the active seat 33. The two limiting members 35 are respectively slidably connected in the two active slots three 18. The two ends of the two telescopic connecting rods 34 are respectively rotatably connected to the active seat 33 and the limiting members 35. The two ends of the first spring 32 are respectively connected to the inner wall of the active slot two 16 and the upper end of the active seat 33.

[0041] The traction part includes a pressing plate 37 rotatably connected to the outer surface of the frame body 1 through a torsion spring and a wire body 36 with one end connected to the lower end of the pressing plate 37. The other end of the wire body 36 penetrates into the frame body 1 and is fixedly connected to the upper end of the column body 31.

[0042] The adjusting part includes two guide plates 42 inserted into the fixed seat 41 and a lead screw 43 screwed inside the fixed seat 41. The lower ends of the two guide plates 42 penetrate through the fixed seat 41 and are fixedly connected to the upper end of the sleeve 44. The lower end of the lead screw 43 penetrates through the fixed seat 41 and is rotatably connected to the upper end of the sleeve 44.

[0043] By adopting the above technical solution, and with Figure 1The orientation is described as follows. When used on a relatively flat ground, by rotating the lead screw 43, the sleeve 44 can be driven to move downward along the outside of the support leg 2, driving the roller 45 to descend and contact the ground. At this time, the contact with the ground is achieved through the roller 45, and the bottom of the support leg 2 does not directly contact the ground. In this way, it is labor-saving and the movement is smoother when in use. When climbing stairs is required, rotate the lead screw 43 to drive the sleeve 44 and the roller 45 to rise. The roller 45 is separated from the ground and the bottom of the support leg 2 contacts the ground. First, place the two support legs 2 on the left on the higher step. At this time, due to the fact that the two support legs 2 on the right are parallel to the two support legs 2 on the left, the two support legs 2 on the right cannot contact the lower step. At this time, press one end of the two pressure plates 37 on the upper right side of the frame body 1. The other ends of the two pressure plates 37 tilt upward and drive the column body 31 to move upward in the first movable groove 15 through the wire body 36. The upward movement of the column body 31 drives the movable seat 33 to move upward in the second movable groove 16. The movable seat 33 squeezes the first spring 32 to compress the first spring 32. When the movable seat 33 moves upward, it drives one end of the telescopic connecting rod 34 to move upward. The telescopic connecting rod 34 changes from a parallel state to an inclined state. The design of the avoidance groove 17 is to facilitate the accommodation of the inclined telescopic connecting rod 34. At this time, the length of the telescopic connecting rod 34 becomes longer (the function of telescoping and length adjustment is realized by one connecting rod movably sleeved outside another connecting rod, which belongs to a mature existing technology and will not be elaborated here). When one end of the telescopic connecting rod 34 moves upward, it drives the limiting member 35 to move horizontally through the other end of the telescopic connecting rod 34. The two limiting members 35 move towards each other and one ends of the two limiting members 35 move out of the adjacent positioning holes 21. At this time, the limitation of the support leg 2 is cancelled, and the support leg 2 can move outside the frame body 1. The two support legs 2 on the right slide downward along the frame body 1, and the lower ends of the two support legs 2 on the right can contact the lower step. Then release one end of the pressure plate 37. The first spring 32 generates a force to push the movable seat 33 to reset. The movable seat 33 descends and drives the limiting member 35 to move horizontally through the telescopic connecting rod 34. The two limiting members 35 move away from each other and one ends of the two limiting members 35 are inserted into the adjacent positioning holes 21, re-limiting the two support legs 2 on the right. At this time, the bottoms of the two support legs 2 on the left contact the higher step, and the bottoms of the two support legs 2 on the right contact the lower step, realizing the adjustment of the height of the walking aid, enabling the walking aid to conform to the height of the stair steps. Moreover, the structure of the present application is simple, and the adjustment method is more convenient. It does not need to rely on heavy motors and batteries to achieve height adjustment. The patient can easily lift and lower it during the process of climbing stairs, reducing the burden on the upper limbs of the patient during the process of climbing stairs. When climbing stairs, the roller 45 cannot contact the step ground, ensuring the stability of the four support legs 2 of the walking aid during the process of climbing stairs, and avoiding the situation of the walking aid sliding or shifting caused by the rotation of the roller 45 during the process of climbing stairs. When not climbing stairs, the roller 45 can be adjusted to contact the ground, which is labor-saving and the movement is smoother when in use, and can better cope with different usage scenarios.

[0044] like Figures 4 - 6 As shown, the frame body 1 is further provided with a plurality of movable grooves four 19, the inner wall of the support leg 2 is provided with a plurality of annular grooves 22, the frame body 1 is further connected with an inner support assembly 5, and the inner support assembly 5 includes an annular seat 52 movably connected to the frame body 1, a connecting rod 51 with both ends respectively fixed to the upper end of the annular seat 52 and the lower end of the movable seat 33, a plurality of grooves 53 provided on the outer surface of the annular seat 52, a plurality of tooth keys one 54 integrally formed in the plurality of grooves 53, a plurality of inner support seats 56 respectively slidably connected to the plurality of movable grooves four 19, a plurality of tooth keys two 57 provided at the upper ends of the plurality of inner support seats 56, a plurality of transmission assemblies rotatably connected to the frame body 1 and respectively connected to the tooth keys one 54 and the tooth keys two 57, one end of the plurality of movable seats 33 extends out from the movable groove four 19 and the lower end of the movable seat 33 contacts the inner wall of the annular groove 22.

[0045] The transmission assembly includes two gears 55 rotatably connected to the inside of the frame 1, two synchronous wheels 59 respectively fixed to one side of the two gears 55, and a synchronous belt 58 connecting the two synchronous wheels 59. The two gears 55 are respectively meshed with the tooth key 1 54 and the tooth key 2 57.

[0046] By adopting the above technical solution, when the movable seat 33 rises, the annular seat 52 can be driven to rise through the connecting rod 51. When the annular seat 52 rises, the tooth key 1 54 can drive a gear 55 to rotate clockwise. The rotation of the gear 55 drives another gear 55 to rotate through the synchronous wheel 59 and the synchronous belt 58. The other gear 55 rotates through the tooth key 2 57 to drive the inner support seat 56 to move in the movable groove 4 19 (the inner support seat 56 moves in the direction of the annular seat 52). At this time, the inner support seat 56 is removed from the annular groove 22, and the limit on the support leg 2 is cancelled. When the annular seat 52 descends, one end of the inner support seat 56 can be driven by the gear 55 to extend out of the movable groove 4 19. The inner support seats 56 are arranged in a ring-shaped manner inside the frame 1, and the lateral force (such as the thrust when the user leans on it) borne by the support leg 2 is partially transferred to the frame 1 by contacting the inner wall of the ring-shaped groove 22, thereby reducing the shear force of the limit member 35 and preventing the limit member 35 from being damaged due to overload. The cooperation between the inner support seat 56 and the ring-shaped groove 22 forms multiple contact points, which is equivalent to adding multiple points of support between the support leg 2 and the frame 1, reducing the shaking of the support leg 2 when subjected to force and improving the overall rigidity. Even if the limit member 35 fails accidentally (such as breaking), the cooperation between the inner support seat 56 and the ring-shaped groove 22 can still provide a certain limiting effect to prevent the support leg 2 from sliding on the frame 1.

[0047] like Figure 4 , Figure 7 and Figure 8As shown in the figure, a plurality of lubricating and assisting moving parts 6 are also connected inside the frame body 1. The lubricating and assisting moving part 6 includes a ring body 61 fixed on the inner wall of the third moving groove 18 and sleeved outside the limiting part 35, a scraping strip 62 fixed on the inner wall of the ring body 61 and fitting on the outer surface of the limiting part 35, a groove body 63 opened on the inner wall of the ring body 61, an oil discharge groove 64 opened inside the ring body 61 and communicated with the groove body 63, a plastic box body 65 fixed inside the frame body 1, an elastic valve sheet 651 connected to the inner wall of the output port of the plastic box body 65, a sliding seat 68 slidably connected inside the frame body 1, a second spring 69 connected inside the frame body 1 for resetting the sliding seat 68, an inclined surface two 681 opened on one side of the sliding seat 68, and a pipe body 67 connecting the output port of the plastic box body 65 and the oil discharge groove 64. An inclined surface one 331 matching with the inclined surface two 681 is opened at the upper end of the movable seat 33.

[0048] An oil injection port 652 is opened on one side of the plastic box body 65, and a plurality of through holes parallel to the plurality of oil injection ports 652 are opened inside the frame body 1. Sealing plugs 66 are plugged inside the plurality of through holes.

[0049] By adopting the above technical solution, when the movable seat 33 moves upward in the second moving groove 16, the inclined surface one 331 of the movable seat 33 can contact the inclined surface two 681 on one side of the sliding seat 68, thereby pushing the sliding seat 68 to move inside the frame body 1 and making one end of the sliding seat 68 extrude the plastic box body 65. The internal pressure of the plastic box body 65 increases, pushing the elastic valve sheet 651 (made of silica gel or rubber, and the shape may be umbrella-shaped, duckbill-shaped or conical. A sealing surface is formed between the elastic valve sheet 651 and the inner wall of the output port of the plastic box body 65, and it remains closed by relying on the elasticity of the material. When the plastic box body 65 is extruded, the internal pressure increases, pushing the elastic valve sheet 651 to deform and open the channel, and the lubricating oil flows out. After the extrusion stops, the internal pressure of the plastic box body 65 decreases, and the elastic valve sheet 651 returns to the closed state by relying on its elasticity to prevent the lubricating oil from flowing out continuously. The design of the elastic valve sheet 651 belongs to the prior art. For example, a sports drink named Pulse adopts this design at the bottle mouth of its packaging bottle, which will not be elaborated here) to deform. The lubricating oil flows out from the output port of the plastic box body 65 and flows into the pipe body 67, and then is discharged from the oil discharge groove 64 to lubricate the surface of the limiting part 35, reducing the sliding friction coefficient, making the movement of the limiting part 35 smoother, and also reducing the friction between the outer surface of the limiting part 35 and the inner wall of the positioning hole 21, avoiding scratches, abrasions or deformations on the surface of the limiting part 35, extending the service life of the limiting part 35, and at the same time, the noise generated by the friction between the limiting part 35 and the positioning hole 21 can be significantly reduced, improving the user experience.

[0050] As Figure 9 and Figure 10As shown in the figure, a plurality of adaptive support parts 7 are connected to the lower end of the frame body 1. The adaptive support part 7 includes a fifth movable groove 71 opened at the lower end of the frame body 1, a plurality of guide rods 72 fixedly connected inside the fifth movable groove 71, a support seat 73 slidably connected in the fifth movable groove 71 and movably sleeved outside the plurality of guide rods 72, and a third spring 74 located in the fifth movable groove 71 and connected to the support seat 73 and the inner wall of the fifth movable groove 71 at both ends. One end of the support seat 73 passes through the fifth movable groove 71 and is connected with a support foot pad 75.

[0051] By adopting the above technical solution, the third spring 74 is used for elastically supporting the support seat 73 and resetting the support seat 73. Since the upper surface of each step may not be so flat (the upper surface of the step is not in a completely horizontal state), when the bottom of the support leg 2 directly contacts the upper surface of the step, the bottom of the support leg 2 may not be able to accurately adapt to each step, which may lead to uneven distribution of the supporting force. The structure of the third spring 74 and the support seat 73 can form an elastic support structure with short-stroke expansion and contraction. When the support foot pad 75 contacts the upper surface of the step, the elastic structure will expand and contract as needed, so as to help the surface of the support foot pad 75 in contact with the step to be more fitting.

[0052] As Figure 1 As shown in the figure, two grips 11 and a pulse oximeter 12 are fixedly connected to the outside of the frame body 1, and the pulse oximeter 12 is located between one of the grips 11 and one of the pressing plates 37. A bag body 13 is fixedly connected to one side of the frame body 1, and a portable oxygen generator 14 is stored in the bag body 13.

[0053] By adopting the above technical solution, the portable oxygen generator 14 is a device that can provide continuous oxygen supply. It is designed for people in need of oxygen therapy and has the characteristics of being easy to carry and use. It belongs to mature prior art and will not be elaborated here. It can obtain oxygen supply at any time when going out, taking a walk or doing exercise, without the need to carry an extra oxygen cylinder or rely on a fixed oxygen supply point, improving the independence of users and reducing the dependence on the help of others. The pulse oximeter 12 adopts a finger clip pulse oximeter, which is a portable medical device used to measure blood oxygen saturation and pulse rate (pulse). It provides real-time blood oxygen saturation and pulse monitoring in a non-invasive manner and is widely used in scenarios such as home care, hospitals, emergency departments, and athlete physical fitness monitoring. It belongs to mature prior art and will not be elaborated here. Integrating the pulse oximeter 12 on the walking aid can realize real-time monitoring of blood oxygen saturation. When the patient is walking daily or going out, they can conveniently check their blood oxygen situation at any time to ensure sufficient oxygen supply. It can also monitor the pulse rate in real time, which helps to understand heart health. Especially for the elderly or patients with cardiovascular diseases, it can timely detect abnormal pulses and prevent the occurrence of health problems.

[0054] Usage method: When using on a relatively flat ground, by rotating the lead screw 43, the sleeve 44 can be driven to move downward along the outside of the support leg 2, driving the roller 45 to descend and contact the ground. At this time, the contact with the ground is achieved through the roller 45, and the bottom of the support leg 2 does not directly contact the ground. In this way, it is labor-saving and the movement is smoother when using. When climbing stairs is needed, rotate the lead screw 43 to drive the sleeve 44 and the roller 45 to rise. The roller 45 is separated from the ground and the bottom of the support leg 2 contacts the ground. First, place the two support legs 2 on the left on the higher step. Press one end of the two pressure plates 37 on the upper right end of the frame body 1. The other end of the two pressure plates 37 tilts upward and drives the column body 31 to move upward in the first movable groove 15 through the wire body 36. The upward movement of the column body 31 drives the movable seat 33 to move upward in the second movable groove 16. The movable seat 33 squeezes the first spring 32 to compress the first spring 32. When the movable seat 33 moves upward, it drives one end of the telescopic connecting rod 34 to move upward. When one end of the telescopic connecting rod 34 moves upward, it drives the other end of the telescopic connecting rod 34 to drive the limiting member 35 to move horizontally through the other end of the telescopic connecting rod 34. The two limiting members 35 move towards each other and one end of the two limiting members 35 moves out of the adjacent positioning holes 21. At this time, the limitation of the support leg 2 is cancelled, and the support leg 2 can move outside the frame body 1. The two support legs 2 on the right slide down along the frame body 1, and the lower ends of the two support legs 2 on the right can contact the lower step. Release the pressure plate 37, and the first spring 32 generates a force to push the movable seat 33 to reset. One end of the two limiting members 35 is inserted into the adjacent positioning holes 21, and the two support legs 2 on the right are limited again. At this time, the bottom of the two support legs 2 on the left contacts the higher step, and the bottom of the two support legs 2 on the right contacts the lower step, realizing the adjustment of the height of the walking aid, so that the walking aid can conform to the height of the stairs.

[0055] The above is only a preferred specific implementation manner of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A multifunctional elderly walking aid that is easy to operate, comprising a frame (1), characterized in that: The outer surface of the frame (1) is movably sleeved with a plurality of supporting legs (2), and a plurality of positioning holes (21) are provided inside the plurality of supporting legs (2); the frame (1) is internally connected with a plurality of limiting components (3) for limiting the plurality of supporting legs (2) respectively; The limiting assembly (3) comprises two limiting members (35) movably connected inside the frame (1) and one end of which is inserted into an adjacent positioning hole (21), and an adjusting assembly movably connected inside the frame (1) for radial movement and driving the two limiting members (35) for axial movement; the frame (1) is externally connected with a plurality of traction parts for respectively driving the plurality of adjusting members to move; The two supporting legs (2) are both externally connected to a wheel support portion (4), and the wheel support portion (4) comprises a fixing seat (41) fixedly connected to the outside of the supporting leg (2), a sleeve (44) movably sleeved on the outside of the supporting leg (2), a roller (45) rotatably connected to one side of the sleeve (44), and an adjusting portion connected to the fixing seat (41) and connected to the sleeve (44) and capable of driving the sleeve (44) to rise and fall.

2. The multifunctional elderly walking aid that is easy to operate according to claim 1 is characterized by: The frame (1) is provided with a movable groove (15), a movable groove (16) connected to the movable groove (15), two avoidance grooves (17) connected to the movable groove (16), and two movable grooves (18). The adjustment component comprises a column (31) slidably connected to the movable groove (15), a spring (32) located in the movable groove (16) and sleeved on the outside of the column (31), and a spring (32) slidably connected to the movable groove (16) and connected to the column. (31) a movable seat (33) fixed at the lower end, two telescopic connecting rods (34) connecting the two limiting members (35) and the movable seat (33), the two limiting members (35) are respectively slidably connected in the two movable grooves (18), the two ends of the two telescopic connecting rods (34) are respectively rotatably connected to the movable seat (33) and the limiting members (35), and the two ends of the spring (32) are respectively connected to the inner wall of the movable groove (16) and the upper end of the movable seat (33).

3. The multifunctional elderly walking aid that is easy to operate according to claim 2 is characterized by: The traction part comprises a pressure plate (37) rotatably connected to the outer surface of the frame (1) via a torsion spring and a wire body (36) one end of which is connected to the lower end of the pressure plate (37), and the other end of the wire body (36) penetrates into the frame (1) and is fixedly connected to the upper end of the column (31).

4. The multifunctional elderly walking aid that is easy to operate according to claim 3 is characterized by: The adjusting portion comprises two guide plates (42) inserted into the fixing seat (41) and a screw rod (43) screwed into the fixing seat (41), wherein the lower ends of the two guide plates (42) penetrate the fixing seat (41) and are fixedly connected to the upper end of the sleeve (44), and the lower end of the screw rod (43) penetrates the fixing seat (41) and is rotatably connected to the upper end of the sleeve (44).

5. The multifunctional elderly walking aid that is easy to operate according to claim 4 is characterized by: The frame body (1) is also provided with a plurality of movable grooves (19) inside, the inner wall of the support foot (2) is provided with a plurality of annular grooves (22), the frame body (1) is also connected with an inner support assembly (5), and the inner support assembly (5) comprises an annular seat (52) movably connected inside the frame body (1), a connecting rod (51) with two ends respectively fixed to the upper end of the annular seat (52) and the lower end of the movable seat (33), a plurality of grooves (53) provided on the outer surface of the annular seat (52), and a plurality of integrally formed inner support assemblies (51). A plurality of tooth keys (54) in the groove (53), a plurality of inner support seats (56) respectively slidably connected in the plurality of movable grooves (19), a tooth key (57) provided at the upper ends of the plurality of inner support seats (56), and a plurality of transmission components rotatably connected inside the frame body (1) and respectively connected to the tooth key (54) and the tooth key (57), one end of the plurality of movable seats (33) extending from the movable groove (19) and the lower end of the movable seat (33) contacting the inner wall of the annular groove (22).

6. The multifunctional elderly walking aid that is easy to operate according to claim 5, characterized in that: The transmission assembly comprises two gears (55) rotatably connected inside the frame (1), two synchronous wheels (59) respectively fixed to one side of the two gears (55), and a synchronous belt (58) connecting the two synchronous wheels (59), and the two gears (55) are respectively meshed with tooth key 1 (54) and tooth key 2 (57).

7. The multifunctional elderly walking aid that is easy to operate according to claim 6 is characterized by: The frame (1) is also internally connected to a plurality of lubricating and moving-assisting parts (6), and the lubricating and moving-assisting parts (6) include a ring body (61) fixedly connected to the inner wall of the movable groove (18) and sleeved on the outside of the limiting member (35), a scraper strip (62) fixedly connected to the inner wall of the ring body (61) and in contact with the outer surface of the limiting member (35), a groove body (63) provided on the inner wall of the ring body (61), an oil drain groove (64) provided inside the ring body (61) and connected to the groove body (63), and a plastic box fixedly connected to the inside of the frame (1). The movable seat (33) comprises a body (65), an elastic valve plate (651) connected to the inner wall of the outlet of the plastic box (65), a slide seat (68) slidably connected to the inside of the frame (1), a second spring (69) connected to the inside of the frame (1) for resetting the slide seat (68), a second inclined surface (681) provided on one side of the slide seat (68), and a pipe body (67) connecting the outlet of the plastic box (65) with the oil drain groove (64); and a first inclined surface (331) matching with the second inclined surface (681) is provided on the upper end of the movable seat (33).

8. The multifunctional elderly walking aid that is easy to operate according to claim 7, characterized in that: An oil filling port (652) is provided on one side of the plastic box body (65), and a plurality of through holes parallel to the plurality of oil filling ports (652) are provided inside the frame body (1), and sealing plugs (66) are provided inside the plurality of through holes.

9. The multifunctional elderly walking aid that is easy to operate according to claim 8, characterized in that: The lower end of the frame (1) is connected to a plurality of adaptive support parts (7), and the adaptive support parts (7) include a movable groove (71) provided at the lower end of the frame (1), a plurality of guide rods (72) fixedly connected to the inside of the movable groove (71), a support seat (73) slidably connected to the movable groove (71) and movably sleeved on the outside of the plurality of guide rods (72), and a spring (74) located in the movable groove (71) and having two ends respectively connected to the support seat (73) and the inner wall of the movable groove (71), and one end of the support seat (73) passes through the movable groove (71) and is connected to a support foot pad (75).

10. The multifunctional elderly walking aid that is easy to operate according to claim 9, characterized in that: The frame (1) is fixedly connected to the outside with two handles (11) and a pulse oximeter (12), and the pulse oximeter (12) is located between one of the handles (11) and one of the pressure plates (37). A bag (13) is fixedly connected to one side of the frame (1), and a portable oxygen concentrator (14) is stored in the bag (13).

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