CN113662817A

CN113662817A - Walking aid with seat capable of assisting in standing and working method

Info

Publication number: CN113662817A
Application number: CN202111015521.0A
Authority: CN
Inventors: 张建强; 缪丹云; 池文君; 吴薇; 黎鸣夏; 谢庄
Original assignee: Guangzhou City University of Technology
Current assignee: Guangzhou City University of Technology
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2021-11-19

Abstract

The invention provides a walking aid with a seat and a working method thereof, wherein the walking aid with the seat can assist in standing, and comprises a frame body, a seat, a connecting rod mechanism, a locking mechanism, a brake device and a walking wheel arranged on the frame body, wherein one side of the frame body is provided with a handrail; the travelling wheels comprise universal wheels and directional wheels, and the universal wheels are arranged on one side of the frame body; the directional wheel is arranged on the other side of the frame body through a brake device; the invention has the advantages that the walking aid is convenient for a user to sit down, the user does not need to turn when sitting down, and the walking aid is not easy to slide when the user sits down.

Description

Walking aid with seat capable of assisting in standing and working method

Technical Field

The invention relates to the technical field of life auxiliary articles, in particular to a walking aid with a seat, which can assist in standing.

Background

There are a wide variety of existing walkers, with common walkers including two-wheeled and four-wheeled walkers. Both of these walkers provide the user with the benefits of a walker, but they suffer from drawbacks.

Wherein the two-wheel walking aid is a wheel type walking aid consisting of two handles, two wheels and two support legs. The front of the two-wheeled walking aid is provided with the fixed caster, the back foot pad has certain friction and anti-skidding performance, the two-wheeled walking aid is easy to propel, has good directivity, saves the operation of lifting the walking aid, and can be pushed by a user to move the walking aid forwards. Is suitable for users who have insufficient upper limb strength and poor balance and can not lift the walking aid.

The four-wheel walking aid and the two-wheel walking aid are different in the number of wheels, the four-wheel walking aid is used as the two-wheel walking aid, but the four-wheel walking aid is more flexible in movement, can be used for higher walking speed, is generally provided with a brake device and a rest seat, and is suitable for outdoor use. Before use, the height of the telescopic rod is adjusted to enable the handle position to be flush with a user, and the telescopic rod can be used only by people with better balance capability due to lower stability. The hand brake of the four-wheel walking aid can be used as a running brake. The hand brake can be used as a parking brake after being pressed downwards, so that the four-wheel walking aid can be used as a two-wheel walking aid after the parking brake is put down.

The utility model discloses a medical treatment auxiliary walking car in chinese patent No. 20181040620.4, the patent document who announces day 2018.10.02, left side support body sets up with the right side support body relatively to it is fixed to be connected through two connecting rods, the top of left side support body and right side support body all is provided with a layer board and handle, and two foot rests are installed respectively to its bottom, install pulley mechanism on the foot rest, the lower extreme and the left side support body of bedplate are articulated to fix through the locking of the first fixed pin on the support body of left side, the upper end and the right side support body of toilet seat board are articulated to fix through the locking of the second fixed pin on the support body of right side, all be provided with the second fitting pin on the two stands of right side support body, the second fitting pin is on same horizontal plane with the axis of rotation of bedplate.

However, according to the technical solution disclosed in the patent document, on one hand, when the seat board is put down, the seat board is horizontally arranged between the left side frame body and the right side frame body and is located at a standing position when a user walks, the user needs to be away from the seat board first when sitting down to put down the seat board, and then the user needs to turn around to sit on the seat board; thus, the use is troublesome; on the other hand, when the pulley and the anti-skid support leg are used in a conversion mode, the frame body needs to be lifted manually, and the fixing pin A and the fixing pin B are respectively adjusted one by one aiming at each pulley mechanism, so that the pulley and the anti-skid support leg are used in a conversion mode; therefore, the use is inconvenient during the conversion, and the user is generally a physically weak person such as the old or the person with mobility disability, when the pulley and the anti-slip support leg are used in the conversion and the support body needs to be lifted for self-adjustment, the operation is difficult for the user, and even if the user can lift the support body for self-adjustment and conversion to use the pulley and the anti-slip support leg, the user can be greatly burdened.

Disclosure of Invention

The invention provides a walking aid with a seat and a working method, which can assist in standing.

In order to achieve the purpose, the technical scheme of the invention is as follows: a walking aid with a seat capable of assisting in standing comprises a frame body, a seat, a connecting rod mechanism, a locking mechanism, a brake device and walking wheels arranged on the frame body, wherein one side of the frame body is provided with a handrail; the travelling wheels comprise universal wheels and directional wheels, and the universal wheels are arranged on one side of the frame body; the directional wheel is arranged on the other side of the frame body through a brake device.

The frame body comprises a support frame and telescopic frames symmetrically arranged on the left side and the right side of the support frame relative to the seat, and the armrests are arranged on the telescopic frames and located at one end far away from the seat; the two link mechanisms are symmetrically arranged on two sides of the seat and are fixedly connected with the two telescopic frames respectively; the supporting frame comprises a front side supporting leg and a rear side supporting leg, the front side supporting leg extends downwards vertically to form the rear side supporting leg, and the universal wheel is mounted on the front side supporting leg; the orientation wheel is mounted on the rear leg.

The connecting rod mechanism comprises a mounting plate, a hydraulic rod, a first connecting rod, a second connecting rod and a third connecting rod, the mounting plate is fixedly mounted on the telescopic frame, one end of the hydraulic rod is hinged to one side, away from the seat, of the mounting plate, the middle position of the first connecting rod is hinged to the mounting plate, one end of the third connecting rod is hinged to the mounting plate, one end of the first connecting rod is hinged to the hydraulic rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the hinged position of the first connecting rod and the second connecting rod is located at one end, close to the hinged position of the third connecting rod and the mounting plate, of the third connecting rod; one end of the second connecting rod, which is far away from the first connecting rod, is hinged with the seat; the third connecting rod is movably connected with the seat at one end far away from the first connecting rod.

The locking mechanism comprises a locking piece, a first elastic piece, a first guide groove arranged on the mounting plate and a synchronizing rod connected with the two first guide grooves, the first guide groove is arranged on the mounting plate and positioned on one side of the seat, two ends of the synchronizing rod respectively penetrate through the first guide grooves and are movably arranged in the first guide grooves, the synchronizing rod is fixedly connected with the bottom surface of the seat plate part, the locking piece is hinged on the mounting plate and positioned on one side of the first guide groove on the mounting plate, a guide part is arranged on one side of the locking piece close to the first guide groove, and a locking groove for locking the synchronizing rod is arranged on one side of the guide arc part far away from the first guide groove; the lower end of the first guide groove and the locking groove are arranged at the same height, one end of the first elastic piece is connected with the mounting plate, and the other end of the first elastic piece is connected with the locking piece; under the action of the first elastic member, the locking member locks the synchronization lever through the locking groove.

The directional wheel comprises a pulley and a pulley shaft used for being connected with the pulley, the pulley is rotatably connected with the pulley shaft, one end of the brake device is connected with the pulley shaft, and the other end of the brake device is connected with the rear side support.

The brake device comprises a brake guide rod, a brake pipe, a support leg connecting piece and a second elastic piece, the brake guide rod is vertically and fixedly connected to the top of the pulley shaft, the brake pipe is provided with a through hole corresponding to the brake guide rod, and the brake guide rod penetrates through and is movably arranged in the through hole of the brake pipe; the length of the brake guide rod is greater than that of the brake pipe, and the length difference between the brake guide rod and the brake pipe is greater than the distance from the lowest point of the rear side support to the lowest point of the pulley when the second elastic part is not compressed; the second elastic piece is arranged on the outer side of the brake guide rod, the upper end of the second elastic piece is abutted against the bottom of the brake pipe, and the lower end of the second elastic piece is abutted against the sliding shaft; one end of the support leg connecting piece is fixedly connected with the brake pipe, and the other end of the support leg connecting piece is fixedly connected with the rear side support leg.

With the arrangement, the seat is arranged at the other side of the frame body relative to the armrests, so that the seat is arranged at the rear side of the advancing direction of the walking aid, and when a user of the walking aid needs to use the seat for rest, the user can directly sit down close to the seat without going away from the seat or turning around; at the moment, the self weight of a user leaning on the seat is transmitted to the first connecting rod through the second connecting rod and the third connecting rod in sequence, the first connecting rod is hinged to the mounting plate, the first connecting rod rotates to drive the hydraulic rod to contract and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the driving of the connecting rod mechanism, the synchronous rod is fixedly connected with the seat and slides in the first guide groove, then the synchronous rod contacts with the guide part of the locking piece and drives the locking piece to rotate by extruding the guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronous rod is extruded and passes through the guide part and then enters the locking groove, the locking piece rotates towards the original position under the elastic action of the first elastic piece, so that the locking groove is clamped with the synchronous rod, and the seat is locked by locking the synchronous rod through the locking piece; when the seat moves downwards, the hydraulic rod is contracted to generate certain resistance on the seat, so that the phenomenon that the seat moves downwards too fast to cause the user to lose balance to cause accidents can be prevented; when a user sits on the seat and moves downwards, the gravity of the user drives the rear side support leg of the support frame to move downwards along with the user sitting down, the upper support leg connecting piece arranged on the rear side support leg drives the brake pipe to move downwards, and the brake pipe extrudes the second elastic piece to compress downwards on the brake guide rod until the rear side support leg is propped against the bottom surface; thus, after a user sits down, the brake device drives the rear side supporting legs to abut against the ground due to the pressure of direct weight, so that the rear side supporting legs play a role in braking and skid resistance on the walking aid; meanwhile, the seat is arranged at one side of the brake device, after a user sits down, the gravity center of the walking aid is positioned at one side of the seat, so that the walking aid is not easy to slide, and after the walking aid slides accidentally, the user is not easy to lose control over the walking aid due to the directional wheels connected with the brake device, so that the walking aid is not easy to slide; when the user has had a rest and needs to use the walking aid to continue walking, can stir fixed locking piece in the kayser mechanism, make the locking piece rotate on the installed part, it is tensile to drive first elastic component simultaneously, break away from the locking recess of locking piece until the synchronizing bar, the locking piece has been removed the locking to the synchronizing bar, at this moment, the seat is upwards preceding activity under the hydraulic pressure effect of hydraulic stem, the user can stand under the assistance of hydraulic stem hydraulic pressure effect, recover to the highest position until the seat, like this, even the seat setting is at the rear side of walking aid advancing direction, the leg lifting action when can not influence the user and walk yet.

The working method of the auxiliary standing walking aid with the seat comprises the following steps:

(1) when a user needs to sit down for rest, the user sits down from the seat.

(2) The self weight of a user is transmitted to the first connecting rod sequentially through the second connecting rod and the third connecting rod, the first connecting rod is hinged to the mounting plate, the first connecting rod rotates to drive the hydraulic rod to contract and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the driving of the connecting rod mechanism, the synchronizing rod slides in the first guide groove, then the synchronizing rod contacts with the guide part of the locking piece and drives the locking piece to rotate by extruding the guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronizing bar extrudees and when entering into behind the guide part in the locking recess, the locking piece rotates to the original position under the elastic action of first elastic component for locking recess and synchronizing bar joint, and then make the seat be in the locking state through locking piece locking synchronizing bar.

(3) When the user has had a rest and need use the helps capable ware to continue to walk, can stir fixed locking piece in the kayser mechanism for the locking piece rotates on the installed part, and it is tensile to drive first elastic component simultaneously, breaks away from the locking recess of locking piece until the synchronizing bar, and the locking to the synchronizing bar has been solved to the locking piece, and the seat resets under the effect of hydraulic stem, and the user can stand under the supplementary of hydraulic stem hydraulic action, resumes to the highest position until the seat.

According to the method, the seat is arranged on the other side, opposite to the armrest, of the frame body, so that the seat is arranged on the rear side in the advancing direction of the walking aid, and when a user of the walking aid needs to use the seat for rest, the user can sit down directly close to the seat without going away from the seat or turning around; at the moment, the self weight of a user leaning on the seat is transmitted to the first connecting rod through the second connecting rod and the third connecting rod in sequence, the first connecting rod is hinged to the mounting plate, the first connecting rod rotates to drive the hydraulic rod to contract and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the driving of the connecting rod mechanism, the synchronous rod is fixedly connected with the seat and slides in the first guide groove, then the synchronous rod contacts with the guide part of the locking piece and drives the locking piece to rotate by extruding the guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronous rod is extruded and passes through the guide part and then enters the locking groove, the locking piece rotates towards the original position under the elastic action of the first elastic piece, so that the locking groove is clamped with the synchronous rod, and the seat is locked by locking the synchronous rod through the locking piece; when the seat moves downwards, the hydraulic rod is contracted to generate certain resistance on the seat, so that the phenomenon that the seat moves downwards too fast to cause the user to lose balance to cause accidents can be prevented; when a user sits on the seat and moves downwards, the gravity of the user drives the rear side support leg of the support frame to move downwards along with the user sitting down, the upper support leg connecting piece arranged on the rear side support leg drives the brake pipe to move downwards, and the brake pipe extrudes the second elastic piece to compress downwards on the brake guide rod until the rear side support leg is propped against the bottom surface; thus, after a user sits down, the brake device drives the rear side supporting legs to abut against the ground due to the pressure of direct weight, so that the rear side supporting legs play a role in braking and skid resistance on the walking aid; meanwhile, the seat is arranged at one side of the brake device, after a user sits down, the gravity center of the walking aid is positioned at one side of the seat, so that the walking aid is not easy to slide, and after the walking aid slides accidentally, the user is not easy to lose control over the walking aid due to the directional wheels connected with the brake device, so that the walking aid is not easy to slide; when the user has had a rest and needs to use the walking aid to continue walking, can stir fixed locking piece in the kayser mechanism, make the locking piece rotate on the installed part, it is tensile to drive first elastic component simultaneously, break away from the locking recess of locking piece until the synchronizing bar, the locking piece has been removed the locking to the synchronizing bar, at this moment, the seat is upwards preceding activity under the hydraulic pressure effect of hydraulic stem, the user can stand under the assistance of hydraulic stem hydraulic pressure effect, recover to the highest position until the seat, like this, even the seat setting is at the rear side of walking aid advancing direction, the leg lifting action when can not influence the user and walk yet.

Furthermore, the telescopic frame comprises two telescopic rods and a reinforcing rod, the two telescopic rods are arranged in parallel and vertically and fixedly connected with the supporting frame, and two ends of the reinforcing rod are respectively and vertically and fixedly connected with the two telescopic rods; the connecting rod mechanisms are symmetrically arranged on two sides of the seat and are fixedly connected with the telescopic rods and the reinforcing rods respectively; above setting, the height of handrail is adjusted to the accessible telescopic link, and simultaneously, the stiffener plays the additional effort to the telescopic link on the one hand, and on the other hand stiffener still provides extra installation basis for the mounting panel for link mechanism installs more firmly.

Further, the seat comprises a seat plate part and a leaning part, wherein the leaning part is fixedly connected with the seat plate part; a second guide groove which is vertically arranged is formed in one side, connected with the third connecting rod, of the seat leaning part, and a guide shaft which is movably arranged in the second guide groove is arranged at one end, close to the seat, of the third connecting rod; the second connecting rods are respectively hinged on two sides of the seat board part; according to the arrangement, when the seat is not used, the second connecting rod drives the seat plate part of the seat to push the seat upwards and forwards, and the third connecting rod drives the guide shaft to slide to the lowest position in the second guide groove, so that the seat can be positioned at a higher position when the seat is not used, and the leg lifting action when a user is prevented from being hindered by the seat; when the user sits on the seat, the power that seat portion will receive transmits through the second connecting rod, and simultaneously, the third connecting rod drives the guide shaft and slides to the highest point in the second guide way, and the rest portion transmits through the third connecting rod with some power that the seat received, and like this, transmits the power that the seat received respectively through second connecting rod and third connecting rod, and the seat is connected more stably with link mechanism.

Furthermore, a limiting rod is further arranged between the two mounting plates of the connecting rod mechanism, and when the synchronizing rod is located at the lowest position of the first guide groove, the limiting rod is abutted to the bottom surface of the seat plate part; above setting up, on the one hand, the gag lever post plays limiting displacement to the seat, prevents that the user from weighing the minimum of the first guide way of too big impact and causing the damage, and on the other hand, when the synchronizing bar joint was in the locking recess, the gag lever post played the supporting role to the seat with the bottom surface butt of seat portion for the user sits the seat when the seat more stable.

Furthermore, the first guide groove is arc-shaped and penetrates through the mounting plate; thus, the first guide groove matches with the moving locus of the synchronizing bar.

Furthermore, the directional wheel comprises two pulleys and a pulley shaft for connecting the two pulleys, the two pulleys are respectively rotatably connected with the pulley shaft at two sides of the pulley shaft, and the brake guide rod is arranged on the pulley shaft and positioned between the two pulleys; above setting, the brake guide arm setting is on the pulley spindle and be located between two pulleys, and the power that the brake guide arm will receive transmits respectively to the pulley of pulley spindle both sides for brake equipment and directional wheel structure are more stable.

Furthermore, an annular through hole connecting part matched with the rear side branch foot of the support foot is arranged at one end of the support foot connecting part connected with the rear side branch foot of the support foot, adjusting through holes are vertically arranged on the support foot of the rear side branch foot connecting part, an elastic bolt is arranged on one side of the annular connecting part corresponding to the adjusting through holes, and the support foot connecting part is inserted into the annular adjusting through hole through the elastic bolt and sleeved on the rear side support foot to be fixedly connected with the support foot; the rear side support leg is fixedly connected with the rear side support leg; according to the arrangement, the elastic bolt on the support leg connecting piece is inserted into the adjusting through hole on the rear side support leg, so that on one hand, the elastic bolt can be directly sleeved on the rear side support leg through the annular connecting part, the brake device is convenient to mount on the rear side support leg, and on the other hand, the height of the walking aid can be adjusted by matching the elastic bolt with the adjusting through holes with different heights; in addition, when a user sits on the seat, the rear side supporting feet are abutted to the ground through the anti-slip mat, so that the friction force between the rear side supporting feet and the ground is improved, and the anti-slip performance is improved.

Furthermore, one end of the brake guide rod penetrates through the through hole of the brake pipe and extends out of the through hole, the upper end of the brake guide rod is provided with a limiting hole and a pin correspondingly arranged in the limiting hole, and the brake pipe is prevented from being separated from the brake guide rod through the matching of the limiting hole and the pin.

Furthermore, the locking piece is also provided with a pressing part, and the pressing part is fixedly connected with the locking piece on one side of the locking piece away from the locking groove; thus, when the user needs to use the locking piece, the state of the seat can be adjusted by shifting or pressing the pressing part on one side of the locking piece.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the split structure of the present invention.

FIG. 3 is a schematic side view of the present invention.

FIG. 4 is a schematic view of the linkage mechanism and latch mechanism of the present invention.

FIG. 5 is a schematic view showing the connection of the rear leg, the brake device and a pulley when one of the pulleys is removed.

Fig. 6 is a partially enlarged schematic view of a portion a of fig. 3.

Fig. 7 is a schematic structural view of the locking member of the present invention.

Fig. 8 is a partially enlarged schematic view of a portion B in fig. 3.

Reference numerals: 1. a frame body; 11. a support frame; 111. a front side leg; 112. a posterior branch foot; 1121. adjusting the through hole; 1122. an elastic bolt; 1123. a non-slip mat; 12. a telescopic frame; 121. a telescopic rod; 122. a reinforcing bar; 123. a horizontal bar; 13. a hand protecting part; 2. a seat; 21. a seat plate portion; 22. a leaning part; 221. a second guide groove; 222. a guide shaft; 23. a seat attachment frame; 3. a link mechanism; 31. a first link; 32. a second link; 33. a third link; 34. mounting a plate; 35. a hydraulic lever; 36. a limiting rod; 4. a latch mechanism; 41. a locking member; 411. a guide portion; 412. a locking groove; 413. a pressing part; 414. a first hole position of the locking piece; 415. a second hole site of the locking piece; 42. a first elastic member; 43. a first guide groove; 44. a synchronization lever; 51. a universal wheel; 52. a directional wheel; 521. a pulley; 522. a pulley shaft; 6. a brake device; 61. a brake guide rod; 611. a limiting hole; 62. a brake pipe; 63. a leg connector; 631. an annular connecting portion; 64. a second elastic member; 7. a handrail.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-8, a walking aid with a seat capable of assisting in standing comprises a walking aid, the walking aid comprises a frame body 1, a seat 2, a link mechanism 3, a locking mechanism 4, a brake device 6 and a traveling wheel arranged on the frame body 1, an armrest is arranged on one side of the frame body 1, the link mechanism 3 is fixedly mounted on the frame body 1 through bolts, the seat 2 is hinged with the link mechanism 3 and is positioned on one side of the frame body 1 far away from the armrest, and the locking mechanism 4 is fixedly connected with the link mechanism 3; the walking wheel comprises a universal wheel 51 and a directional wheel 52, the universal wheel 51 is arranged on one side of the frame body 1, and the directional wheel 52 is arranged on the other side of the frame body 1 through a brake device 6.

The frame body 1 comprises a support frame 11 and an expansion frame 12 symmetrically arranged on the support frame 11 relative to the seat 2, and the handrail is arranged on the expansion frame 12 and positioned at one end far away from the seat 2; two link mechanisms 3 are arranged, and the two link mechanisms 3 are symmetrically arranged on two sides of the seat 2 and are fixedly connected with the two telescopic frames 12 through bolts; the supporting frame 11 comprises a front side supporting leg 111 formed by extending downwards vertically and a rear side supporting leg 112 formed by extending downwards vertically, and the universal wheel 51 is mounted on the front side supporting leg 111; the orienting wheel 52 is mounted on the rear leg 112.

The link mechanism 3 comprises a mounting plate 34, a hydraulic rod 35, a first link 31, a second link 32 and a third link 33, the mounting plate 34 is fixedly mounted on the telescopic frame 12, one end of the hydraulic rod 35 is hinged to one side of the mounting plate 34 far away from the seat 2, the middle position of the first link 31 is hinged to the mounting plate 34, one end of the third link 33 is hinged to the mounting plate 34, one end of the first link 31 is hinged to the hydraulic rod 35, the other end of the first link 31 is hinged to one end of the second link 32, and the hinged position of the first link 31 and the second link 32 is located at one end of the third link 33 close to the hinged position of the third link 33 and the mounting plate 34; one end of the second connecting rod 32 far away from the first connecting rod 31 is hinged with the seat 2; the third link 33 is movably connected to the seat 2 at an end remote from the first link 31.

The locking mechanism 4 comprises a locking piece 41, a first elastic piece 42, two first guide grooves 43 arranged on the two mounting plates 34 and a synchronous rod 44 connecting the two first guide grooves 43, wherein the first guide grooves 43 are arranged on the mounting plates 34 and positioned on two sides of the seat 2, two ends of the synchronous rod 44 respectively penetrate through the first guide grooves 43 and are movably arranged in the first guide grooves 43, the synchronous rod 44 is fixedly connected with the bottom surface of the seat plate part 21 through bolts or welding, the locking piece 41 is hinged on one mounting plate 34 and positioned on one side of the first guide grooves 43 on the mounting plate 34, the locking piece 41 is provided with a guide part 411 on one side close to the first guide grooves 43, and a locking groove 412 for locking the synchronous rod 44 is arranged on one side of the guide part far away from the first guide grooves 43; one end of the first elastic member 42 is connected with the mounting plate 34, and the other end of the first elastic member 42 is connected with the locking member 41; under the action of the first elastic member 42, the locking member 41 locks the synchronization rod 44 through the locking groove 412, and when the first elastic member is not elastically deformed, the lowest position of the first guide groove is flush with the lowest position of the locking groove; the first elastic member 42 is a spring in this embodiment, one end of the spring is fixed to the mounting plate 34 by a bolt, and the other end of the spring is fixed to the locking member 41 by a bolt.

In this embodiment, the locking member 41 is further provided with a pressing portion 413, and the pressing portion 413 is fixedly connected to the locking member 41 at a side of the locking member 41 away from the locking groove 412; the pressing portion 413 and the locking member 41 are disposed to extend perpendicularly outward, so that when a user needs to use the locking member 41, the user can adjust the state of the seat 2 by shifting or pressing the pressing portion 413 at one side of the locking member 41; as shown in fig. 7, a first locking hole 414 is provided for hinging the locking element to the mounting member 34, and a second locking hole 415 is provided for connecting the first elastic member 42 to the locking element 41.

The directional wheel 52 comprises a pulley 521 and a pulley shaft 522 for connecting the pulley 521, the pulley 521 is rotatably connected with the pulley shaft 522, one end of the brake device 6 is connected with the pulley shaft 522, and the other end of the brake device 6 is connected with the rear side support 112.

The brake device 6 comprises a brake guide rod 61, a brake pipe 62, a support leg connecting piece 63 and a second elastic piece 64, wherein the brake guide rod 61 is vertically welded and fixed on the top of the pulley shaft 522, the brake pipe 62 is provided with a through hole corresponding to the brake guide rod 61, and the brake guide rod 61 penetrates through and is movably arranged in the through hole of the brake pipe 62; the length of the brake guide rod 61 is greater than that of the brake pipe 62, and the distance H between the bottom surface of the brake pipe 62 and the pulley shaft 522 when the second elastic member 64 is in an uncompressed state is greater than the distance H between the lowest point of the rear side support leg 112 and the lowest point of the pulley 521 when the second elastic member 64 is uncompressed, otherwise, if H is less than H, even if the bottom surface of the brake pipe 62 abuts against the pulley shaft 522, the rear side support leg cannot be in contact with the ground, and further the brake anti-skid function cannot be realized; the second elastic piece 64 is arranged on the outer side of the brake guide rod 61, the upper end of the second elastic piece 64 is abutted against the bottom of the brake pipe 62, and the lower end of the second elastic piece 64 is abutted against the sliding shaft; one end of the support leg connecting piece 63 is welded and fixed with the brake pipe 62, and the other end of the support leg connecting piece 63 is fixedly connected with the rear side support leg 112. In this embodiment, one end of the brake guide rod 61 passes through and extends out of the through hole of the brake pipe 62, the upper end of the brake guide rod 61 is provided with a limiting hole 611 and a pin (not shown in the figure) correspondingly arranged in the limiting hole 611, and the brake pipe 26 is prevented from being separated from the brake guide rod 61 by the cooperation of the limiting hole 611 and the pin.

With the arrangement, the seat 2 is arranged at the other side of the frame body 1 relative to the armrests, so that the seat 2 is arranged at the rear side of the advancing direction of the walking aid, and when a user of the walking aid needs to use the seat 2 to rest, the user can sit down directly close to the seat 2 without going away from the seat 2 or turning around; at this time, the weight of the user leaning on the seat 2 is transmitted to the first link 31 through the second link 32 and the third link 33 in sequence, the first link 31 is hinged on the mounting plate 34, so that the first link 31 rotates to drive the hydraulic rod 35 to contract and then drive the first link 31 to rotate outwards, so that the second link 32 moves downwards, the third link 33 moves upwards to realize that the seat 2 moves backwards and downwards under the drive of the link mechanism 3, the synchronous rod 44 slides in the first guide slot 43 due to the fixed connection of the synchronous rod 44 and the seat 2, then the synchronous rod 44 contacts the guide part 411 of the locking piece 41 and drives the locking piece 41 to rotate through squeezing the guide part 411, and then the locking piece 41 drives the first elastic piece 42 to stretch; when the synchronization rod 44 enters the locking groove 412 after pressing and passing through the guide portion 411, the locking member 41 rotates to the original position under the elastic action of the first elastic member 42, so that the locking groove 412 is engaged with the synchronization rod 44, and the locking member 41 locks the synchronization rod 44 to enable the seat 2 to be in the locked state; when the seat 2 moves downwards, the hydraulic rod 35 contracts and generates certain resistance to the seat 2, so that the phenomenon that the seat 2 moves downwards too fast to cause the user to lose balance to cause accidents can be prevented; when a user sits on the seat 2 and moves downwards, the connecting rod mechanism 3 drives the rear side support leg 112 to move downwards along the length direction of the brake guide rod 61 through the brake pipe 62 along with the user sitting down, the upper support leg connecting piece 63 arranged on the rear side support leg 112 drives the brake pipe 62 to move downwards, and the brake pipe 62 extrudes the second elastic piece 64 to compress downwards on the brake guide rod 61 until the rear side support leg 112 abuts against the bottom surface; thus, after a user sits down, the brake device 6 drives the rear side supporting leg 112 to abut against the ground due to the pressure of direct weight, so that the rear side supporting leg 112 plays a role in braking and skid resistance on the walking aid; meanwhile, the seat 2 is arranged at one side of the brake device 6, after a user sits down, the gravity center of the walking aid is positioned at one side of the seat 2, so that the walking aid is not easy to slide, and after the walking aid slides accidentally, the user is not easy to lose control of the walking aid due to the directional wheels 52 connected with the brake device 6; when the user has a rest and needs to continue walking by using the walking aid, the locking piece 41 fixed in the locking mechanism 4 can be shifted, so that the locking piece 41 rotates on the mounting piece, the first elastic piece 42 is driven to stretch at the same time, the synchronous rod 44 is separated from the locking groove 412 of the locking piece 41, the locking piece 41 is contacted with the locking of the synchronous rod 44, at the moment, the seat 2 moves upwards and forwards under the hydraulic action of the hydraulic rod 35, the user can stand under the hydraulic action of the hydraulic rod 35 until the seat 2 is restored to the highest position, and therefore, even if the seat 2 is arranged on the rear side of the advancing direction of the walking aid, the leg lifting action of the user during walking cannot be influenced; in addition, when a user needs to sit on the seat, the fixed pulley can be blocked by the wall or other objects on one side of the directional wheel far away from the universal wheel, so that the condition that the walking aid slides when the user leans against and sits down on the seat and the rear side supporting feet do not contact with the ground is prevented, and further accidents are prevented.

The telescopic frame 12 comprises two telescopic rods 121 and a reinforcing rod 122, the two telescopic rods 121 are arranged in parallel and vertically welded and fixed with the support frame 11, and two ends of the reinforcing rod 122 are respectively and vertically and fixedly welded with the two telescopic rods 121; the link mechanisms 3 are symmetrically arranged on two sides of the seat 2 and are fixedly connected with the telescopic rod 121 and the reinforcing rod 122 through bolts; the telescopic height adjustment of the telescopic rod is the prior art, and the telescopic height adjustment is not described in detail herein; above setting, the height of handrail is adjusted to accessible telescopic link 121, and simultaneously, stiffener 122 plays the additional strengthening to telescopic link 121 on the one hand, and on the other hand stiffener 122 still provides extra installation basis for mounting panel 34 for link mechanism 3 installs more firmly.

The telescopic frame 12 further comprises a horizontal rod 123 arranged above the two telescopic rods 121, and the horizontal rod 123 is vertically welded and fixed with the two telescopic rods 121 respectively; the arm rest is arranged at one end of the horizontal rod 123 far away from the seat 2, and the horizontal rod 123 is provided with a hand guard part 13 made of elastic material at one side of the arm rest close to the seat 2.

The seat 2 comprises a seat plate part 21, a leaning part 22 and a seat connecting frame 23, wherein the leaning part 22 is fixedly connected with the seat plate part 21 through the seat connecting frame 23, and two ends of the seat connecting frame 23 are fixedly connected with the leaning part 22 and the seat plate part 21 through bolts respectively; a second guide groove 221 which is vertically arranged is arranged at one side of the leaning part 22 of the seat 2, which is connected with the third connecting rod 33, and a guide shaft 222 which is movably arranged in the second guide groove 221 is arranged at one end of the third connecting rod 33, which is close to the seat 2; the second connecting rods 32 are respectively hinged at two sides of the seat plate part 21; with the above arrangement, when the seat 2 is not used, the second link 32 drives the seat plate portion 21 of the seat 2 to push the seat 2 upward and forward, and the third link 33 drives the guide shaft 222 to slide in the second guide groove 221 to the lowest position, so that when the seat 2 is not used, the seat 2 can be located at a higher position, and the leg raising action when the seat 2 obstructs the walking of a user is further avoided; when a user sits on the seat 2, the force applied to the seat part 21 is transmitted through the second link 32, meanwhile, the third link 33 drives the guide shaft 222 to slide to the highest position in the second guide groove 221, the leaning part 22 transmits a part of the force applied to the seat 2 through the third link 33, in this way, the force applied to the seat 2 is transmitted through the second link 32 and the third link 33 respectively, and the connection between the seat 2 and the link mechanism 3 is more stable.

The link mechanism 3 is further provided with a limiting rod 36 between the two mounting plates 34, and when the synchronizing rod 44 is positioned at the lowest position of the first guide groove 43, the limiting rod 36 is abutted against the bottom surface of the seat plate part 21; above setting, on the one hand, gag lever post 36 plays limiting displacement to seat 2, prevents that the user's weight from too big striking the lower of first guide way 43 and causing the damage, and on the other hand, when synchronizing bar 44 joint was in locking recess 412, gag lever post 36 played the supporting role with the bottom surface butt of seat board portion 21 to seat 2 for seat 2 is more stable when the user sat at seat 2.

The first guide groove 43 is arc-shaped, and the first guide groove 43 penetrates through the mounting plate 34; the lower end of the first guide groove 43 is at the same height as the locking groove 412 so that the first guide groove 43 matches the moving track of the synchronizing bar 44.

The directional wheel 52 comprises two pulleys 521 and a pulley 521 shaft for connecting the two pulleys 521, the two pulleys 521 are respectively rotatably connected with the pulley 521 shaft at two sides of the pulley 521 shaft, and the brake guide rod 61 is arranged on the pulley 521 shaft and between the two pulleys 521; with the above arrangement, the brake guide rod 61 is disposed on the axle of the pulley 521 and between the two pulleys 521, and the forces applied by the brake guide rod 61 are respectively transmitted to the pulleys 521 on two sides of the axle of the pulley 521, so that the brake device 6 and the directional wheel 52 have more stable structures.

An annular through hole connecting part matched with the rear side support leg 112 is arranged at one end of the support leg connecting part 63 connected with the rear side support leg 112, adjusting through holes 1121 are vertically arranged on the support legs of the connecting part of the rear side support leg 112, an elastic bolt 1122 is arranged on one side of the annular connecting part 631 corresponding to the adjusting through holes 1121, and the support leg connecting part 63 is inserted into the annular adjusting through hole 1121 through the elastic bolt 1122 and sleeved on the rear side support leg 112 to be fixedly connected with the support legs; above setting, insert in adjusting through-hole 1121 on rear side foot 112 through elasticity bolt 1122 on the stabilizer blade connecting piece 63, on the one hand can directly cup joint on rear side foot 112 through cyclic annular connecting portion 631, make things convenient for brake equipment 6 to install on rear side foot 112, on the other hand, can also adjust the height of walking aid through adjusting elasticity bolt 1122 and the cooperation of not co-altitude adjusting through-hole 1121.

The rear side supporting foot 112 is provided with an anti-slip pad 1123; thus, when a user sits on seat 2, rear side support 112 abuts the ground via non-slip mat 1123, increasing the friction between rear side support 112 and the ground, and improving the non-slip performance.

(1) when a user needs to sit down for rest, the user sits down from the seat.

In the above method, since the seat 2 is arranged at the other side of the frame body 1 relative to the armrest, the seat 2 is arranged at the rear side of the walking aid in the advancing direction, and when a user of the walking aid needs to use the seat 2 to rest, the user can sit down directly close to the seat 2 without going away from the seat 2 or turning around; at this time, the weight of the user leaning on the seat 2 is transmitted to the first link 31 through the second link 32 and the third link 33 in sequence, the first link 31 is hinged on the mounting plate 34, so that the first link 31 rotates to drive the hydraulic rod 35 to contract and then drive the first link 31 to rotate outwards, so that the second link 32 moves downwards, the third link 33 moves upwards to realize that the seat 2 moves backwards and downwards under the drive of the link mechanism 3, the synchronous rod 44 slides in the first guide slot 43 due to the fixed connection of the synchronous rod 44 and the seat 2, then the synchronous rod 44 contacts the guide part 411 of the locking piece 41 and drives the locking piece 41 to rotate through squeezing the guide part 411, and then the locking piece 41 drives the first elastic piece 42 to stretch; when the synchronization rod 44 enters the locking groove 412 after pressing and passing through the guide portion 411, the locking member 41 rotates to the original position under the elastic action of the first elastic member 42, so that the locking groove 412 is engaged with the synchronization rod 44, and the locking member 41 locks the synchronization rod 44 to enable the seat 2 to be in the locked state; when the seat 2 moves downwards, the hydraulic rod 35 contracts and generates certain resistance to the seat 2, so that the phenomenon that the seat 2 moves downwards too fast to cause the user to lose balance to cause accidents can be prevented; when a user sits on the seat 2 and moves downwards, the connecting rod mechanism 3 drives the rear side support leg 112 to move downwards along the length direction of the brake guide rod 61 through the brake pipe 62 along with the user sitting down, the upper support leg connecting piece 63 arranged on the rear side support leg 112 drives the brake pipe 62 to move downwards, and the brake pipe 62 extrudes the second elastic piece 64 to compress downwards on the brake guide rod 61 until the rear side support leg 112 abuts against the bottom surface; thus, after a user sits down, the brake device 6 drives the rear side supporting leg 112 to abut against the ground due to the pressure of direct weight, so that the rear side supporting leg 112 plays a role in braking and skid resistance on the walking aid; meanwhile, the seat 2 is arranged at one side of the brake device 6, after a user sits down, the gravity center of the walking aid is positioned at one side of the seat 2, so that the walking aid is not easy to slide, and after the walking aid slides accidentally, the user is not easy to lose control of the walking aid due to the directional wheels 52 connected with the brake device 6; when the user has finished a rest and needs to continue walking with the walking aid, the locking piece 41 fixed in the locking mechanism 4 can be shifted, so that the locking piece 41 rotates on the mounting piece, the first elastic piece 42 is driven to stretch at the same time, the locking piece 41 is contacted with the locking of the synchronizing rod 44 until the synchronizing rod 44 is separated from the locking groove 412 of the locking piece 41, at this time, the seat 2 moves upwards and forwards under the hydraulic action of the hydraulic rod 35, the user can stand under the hydraulic action of the hydraulic rod 35 until the seat 2 is restored to the highest position, and therefore, even if the seat 2 is arranged on the rear side of the advancing direction of the walking aid, the leg lifting action of the user in walking cannot be influenced.

Claims

1. A walking aid with a seat capable of assisting in standing is characterized in that: the frame comprises a frame body, a seat, a connecting rod mechanism, a locking mechanism, a brake device and walking wheels arranged on the frame body, wherein one side of the frame body is provided with an armrest; the travelling wheels comprise universal wheels and directional wheels, and the universal wheels are arranged on one side of the frame body; the directional wheel is arranged on the other side of the frame body through a brake device;

the frame body comprises a support frame and telescopic frames symmetrically arranged on the left side and the right side of the support frame relative to the seat, and the armrests are arranged on the telescopic frames and located at one end far away from the seat; the two link mechanisms are symmetrically arranged on two sides of the seat and are fixedly connected with the two telescopic frames respectively; the supporting frame comprises a front side supporting leg and a rear side supporting leg, the front side supporting leg extends downwards vertically to form the rear side supporting leg, and the universal wheel is mounted on the front side supporting leg; the directional wheel is arranged on the rear side support leg;

the connecting rod mechanism comprises a mounting plate, a hydraulic rod, a first connecting rod, a second connecting rod and a third connecting rod, the mounting plate is fixedly mounted on the telescopic frame, one end of the hydraulic rod is hinged to one side, away from the seat, of the mounting plate, the middle position of the first connecting rod is hinged to the mounting plate, one end of the third connecting rod is hinged to the mounting plate, one end of the first connecting rod is hinged to the hydraulic rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the hinged position of the first connecting rod and the second connecting rod is located at one end, close to the hinged position of the third connecting rod and the mounting plate, of the third connecting rod; one end of the second connecting rod, which is far away from the first connecting rod, is hinged with the seat; the third connecting rod is movably connected with the seat at one end far away from the first connecting rod;

the locking mechanism comprises a locking piece, a first elastic piece, a first guide groove arranged on the mounting plate and a synchronizing rod connected with the two first guide grooves, the first guide groove is arranged on the mounting plate and positioned on one side of the seat, two ends of the synchronizing rod respectively penetrate through the first guide grooves and are movably arranged in the first guide grooves, the synchronizing rod is fixedly connected with the bottom surface of the seat part, the locking piece is hinged on the mounting plate and positioned on one side of the first guide groove on the mounting plate, a guide part is arranged on one side of the locking piece close to the first guide groove, and a locking groove for locking the synchronizing rod is arranged on one side of the guide part far away from the first guide groove; the lower end of the first guide groove and the locking groove are arranged at the same height, one end of the first elastic piece is connected with the mounting plate, and the other end of the first elastic piece is connected with the locking piece; under the action of the first elastic piece, the locking piece locks the synchronous rod through the locking groove;

the directional wheel comprises a pulley and a pulley shaft for connecting the pulley, the pulley is rotatably connected with the pulley shaft, one end of the brake device is connected with the pulley shaft, and the other end of the brake device is connected with the rear side support;

the brake device comprises a brake guide rod, a brake pipe, a support leg connecting piece and a second elastic piece, the brake guide rod is vertically and fixedly connected to the top of the pulley shaft, the brake pipe is provided with a through hole corresponding to the brake guide rod, and the brake guide rod penetrates through and is movably arranged in the through hole of the brake pipe; the length of the brake guide rod is greater than that of the brake pipe, and the distance between the bottom surface of the brake pipe and the pulley shaft when the second elastic part is in an uncompressed state is greater than the distance between the lowest point of the rear side support leg and the lowest point of the pulley when the second elastic part is uncompressed; the second elastic piece is arranged on the outer side of the brake guide rod, the upper end of the second elastic piece is abutted against the bottom of the brake pipe, and the lower end of the second elastic piece is abutted against the sliding shaft; one end of the support leg connecting piece is fixedly connected with the brake pipe, and the other end of the support leg connecting piece is fixedly connected with the rear side support leg.

2. A standing assisted seated walker according to claim 1 wherein: the telescopic frame comprises two telescopic rods and a reinforcing rod, the two telescopic rods are arranged in parallel and vertically and fixedly connected with the supporting frame, and two ends of the reinforcing rod are respectively and fixedly connected with the two telescopic rods vertically; the connecting rod mechanisms are symmetrically arranged on two sides of the seat and are fixedly connected with the telescopic rods and the reinforcing rods respectively.

3. A standing assisted seated walker according to claim 1 wherein: the seat comprises a seat plate part and a leaning part, and the leaning part is fixedly connected with the seat plate part; a second guide groove which is vertically arranged is formed in one side, connected with the third connecting rod, of the leaning part, and a guide shaft which is movably arranged in the second guide groove is arranged at one end, close to the seat, of the third connecting rod; the second connecting rods are respectively hinged to two sides of the seat board part.

4. A standing assisted seated walker according to claim 3 wherein: the link mechanism still is equipped with the gag lever post between two mounting panels, and when the synchronizing bar was located the first guide way lower extreme, the gag lever post was with the bottom surface butt of seat portion.

5. A standing assisted seated walker according to claim 1 wherein: the first guide groove is arc-shaped and penetrates through the mounting plate; the lower end of the first guide groove is at the same height as the locking groove.

6. A standing assisted seated walker according to claim 1 wherein: the directional wheel comprises two pulleys and a pulley shaft for connecting the two pulleys, the two pulleys are respectively rotatably connected with the pulley shaft on two sides of the pulley shaft, and the brake guide rod is arranged on the pulley shaft and located between the two pulleys.

7. A standing assisted seated walker according to claim 1 wherein: the connecting piece is provided with elastic bolts corresponding to the adjusting through holes at one side of the annular connecting part, and the supporting leg connecting piece is inserted into the adjusting through holes through the elastic bolts and sleeved on the rear supporting leg for fixed connection; and the rear side support foot is provided with an anti-skid pad.

8. A standing assisted seated walker according to claim 1 wherein: one end of the brake guide rod penetrates through the through hole extending out of the brake pipe, the upper end of the brake guide rod is provided with a limiting hole and a pin correspondingly arranged in the limiting hole, and the brake pipe is prevented from being separated from the brake guide rod through the matching of the limiting hole and the pin.

9. A standing assisted seated walker according to claim 1 wherein: the locking piece is further provided with a pressing portion, and the pressing portion is fixedly connected with the locking piece on one side, far away from the locking groove, of the locking piece.

10. A method of operating a assisted-standing seated walker according to any one of claims 1-9 wherein: the working method comprises the following steps:

(1) when a user needs to sit down for rest, the user sits down from the seat;

(2) the self weight of a user is transmitted to the first connecting rod sequentially through the second connecting rod and the third connecting rod, the first connecting rod is hinged to the mounting plate, the first connecting rod rotates to drive the hydraulic rod to contract and then drive the first connecting rod to rotate outwards, so that the second connecting rod moves downwards, the third connecting rod moves upwards, the seat moves backwards and downwards under the driving of the connecting rod mechanism, the synchronizing rod slides in the first guide groove, then the synchronizing rod contacts with the guide part of the locking piece and drives the locking piece to rotate by extruding the guide part, and then the locking piece drives the first elastic piece to stretch; when the synchronous rod is extruded and passes through the guide part and then enters the locking groove, the locking piece rotates towards the original position under the elastic action of the first elastic piece, so that the locking groove is clamped with the synchronous rod, and the seat is locked by locking the synchronous rod through the locking piece;