CN113413306A

CN113413306A - Folding obstacle-crossing walking aid

Info

Publication number: CN113413306A
Application number: CN202110664224.2A
Authority: CN
Inventors: 喻洪流; 喻雪琴; 雷洪波; 孟巧玲; 王亚刚
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-09-21

Abstract

The invention discloses a foldable obstacle crossing walking aid, which comprises a first supporting module, a second supporting module, a third supporting module, universal wheels and rear wheels, wherein the first supporting module, the second supporting module and the third supporting module are symmetrical; the first support module, the second support module and the third support module are sequentially connected from top to bottom, and the universal wheel and the rear wheel are connected to the third support module; the first support module and the second support module are U-shaped support brackets, the end parts of the side walls of the U-shaped support brackets are rotatably connected to the handles and the rear wheels, so that the handles and the rear wheels can rotate into the U-shaped space of the U-shaped support brackets, and the second support module can be lifted, so that the walking aid has two states of an opening state and a folding state. The folding chair can be opened and folded, the size after being folded is greatly reduced, and the folding chair is convenient to store and carry.

Description

Folding obstacle-crossing walking aid

Technical Field

The invention relates to the field of walking aids, in particular to a folding obstacle crossing walking aid.

Background

Compared with the research and design of the walking aid in China, the research and design of the walking aid in China are late, along with the gradual increase of aging degree, scientific research personnel in China have to pay attention to the requirements of old people and walking aid appliances, and from the former walking stick to the current walking aid, wheelchair and the like, along with the continuous development of science and technology, the society continuously progresses, and the old people put forward higher requirements on the walking aid appliances. However, the conventional walking aids in the market have single function, for example, the height of the walking aids cannot be adjusted according to the requirements of users, the walking aids cannot be folded, and the walking aids only have a handrail support mode and cannot climb a slope and cross obstacles, so that the requirements of most of the old people are difficult to meet.

Therefore, those skilled in the art are dedicated to develop a foldable obstacle crossing walker which can be conveniently adjusted in height and folded, is easy to operate and is convenient to carry.

Disclosure of Invention

In order to achieve the purpose, the invention provides a folding obstacle crossing walking aid, which comprises a first supporting module, a second supporting module, a third supporting module, universal wheels and rear wheels, wherein the first supporting module, the second supporting module and the third supporting module are all of symmetrical structures; the third support module is arranged at the bottom of the obstacle crossing walking aid, the second support module is arranged on the third support module, and the second support module can be lifted; the first support module is arranged on the second support module;

the first support module comprises a first U-shaped support bracket and a pair of control handles, the pair of control handles are respectively rotatably connected to two first side walls of the first U-shaped support bracket, and the pair of control handles are configured to be capable of rotating into a U-shaped space of the first U-shaped support bracket;

the third support module comprises a second U-shaped support bracket and a pair of third connecting pieces, the pair of third connecting pieces are respectively rotatably connected to the two second side walls of the second U-shaped support bracket, and the pair of third connecting pieces are configured to be capable of rotating into a U-shaped space of the second U-shaped support bracket; the universal wheels are respectively connected to the second side walls of the second U-shaped supporting brackets; the rear wheels are respectively connected to the end parts, far away from the second U-shaped supporting bracket, of the third connecting pieces;

the second support module comprises a first telescopic piece and a second telescopic piece, two ends of the first telescopic piece are respectively connected to the first U-shaped support bracket and the second U-shaped support bracket, and two ends of the second telescopic piece are respectively connected to the control handle and the third connecting piece, so that the second telescopic piece can rotate along with the control handle and the third connecting piece;

the foldable obstacle crossing walker has an open position and a folded position.

Further, the foldable obstacle crossing walker further comprises a handle rotatably connected to an end of the first side wall of the first U-shaped support frame and a U-shaped arm rest pad disposed on the first side wall, the handle configured to rotate into a U-shaped slot of the U-shaped arm rest pad.

Further, first extensible member includes a pair of first side pipe, a pair of air spring pole and direct current push rod motor, a pair of first side pipe parallel arrangement, the one end of first side pipe is connected to second U type support bracket, a pair of air spring pole is respectively the telescopically insert corresponding in the first side pipe, the one end of air spring pole is connected to first U type support bracket, be provided with the anchor strut between a pair of first side pipe, the one end of direct current push rod motor is connected to the anchor strut, the other end is connected to first U type support bracket.

Further, the second telescopic part comprises a pair of second fixing rods and a pair of second telescopic rods, one end of each of the pair of second fixing rods is connected with the corresponding third connecting piece, the pair of telescopic rods are respectively inserted into the corresponding second fixing rods in a telescopic manner, and one end of each telescopic rod is connected to the corresponding control handle.

Further, the second U type support frame be provided with the battery case on the second lateral wall, be provided with the control box on the second connecting piece of second U type support frame, the both ends of control box are provided with the bulb, the middle part of control box is provided with the sensor mounting panel, be provided with radar sensor and binocular camera on the sensor mounting panel.

Further, the universal wheel is connected to the second side wall through a third telescopic piece, the third telescopic piece comprises a third fixing rod and a third telescopic rod, the third fixing rod is connected to the surface of the second side wall, the third telescopic rod is inserted into the third fixing rod in a telescopic mode, and the end portion of the third telescopic rod is connected with the universal wheel.

Further, the foldable obstacle crossing walker further comprises a seat module rotatably connected to the second support module.

Further, the seat module includes seat board, back, fourth connecting piece and angle sign indicating number, one side of seat board is connected to the fourth connecting piece, the fourth connecting piece articulate to the second supports the module, the back is connected to first extensible member, the back is the toper, the thick one side of back sets up down.

Further, the control handle includes second side pipe and pipe, the one end of second side pipe is articulated extremely first lateral wall, the other end of second side pipe is connected to the pipe, be provided with the rubber sleeve that supplies the user to hold on the pipe.

Further, the first side wall and the second side wall are both square tube structures.

The folding obstacle crossing walking aid provided by the invention has the following technical effects: the folding and unfolding device can be conveniently folded, so that the carrying and the storage are convenient, and the folding and unfolding processes are simple and convenient to operate; in addition, the function of the walking aid is expanded by arranging a plurality of electronic components, so that the walking aid can illuminate, detect obstacles and the like, and the use safety is further improved; still through setting up multiple handle, expanded handrail support mode, can satisfy different users' operation requirement.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic view of the walker in accordance with a preferred embodiment of the present invention in an open configuration;

FIG. 2 is an enlarged schematic view of a first support module;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is an enlarged schematic view of a second support module;

FIG. 5 is an enlarged schematic view of a third support module;

FIG. 6 is a schematic view of the mounting of electronic components;

FIG. 7 is an enlarged schematic view of the seat module;

FIG. 8 is a schematic view of the walker in a collapsed configuration.

Wherein, 100-a first supporting module, 110-a first connecting piece, 120-a first side wall, 121-a first dust cover, 130-a control handle, 131-a second square tube, 132-a round tube, 140-a grip, 141-a damping bracket, 142-a connecting rod, 150-U-shaped armrest cushion, 200-a second supporting module, 210-a first telescopic piece, 211-a first square tube, 212-an air spring rod, 220-a second telescopic piece, 221-a second fixing rod, 222-a second telescopic rod, 230-a reinforcing rod, 240-a direct current push rod motor, 300-a third supporting module, 310-a second connecting piece, 320-a second side wall, 330-a third connecting piece, 331-a second dust cover, 410-a battery box and 420-a control box, 421-bulb, 422-sensor mounting plate, 423-radar sensor, 424-binocular camera, 425-ultrasonic sensor, 500-universal wheel, 510-third telescopic piece, 511-third fixed rod, 512-third telescopic rod, 600-rear wheel, 700-seat module, 710-seat plate, 720-fourth connecting piece, 730-backrest and 740-corner connector.

Detailed Description

The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

As shown in FIG. 1, the invention discloses a folding obstacle crossing walker, which comprises a first support module 100, a second support module 200, a third support module 300, universal wheels 500 and rear wheels 600, wherein the first support module 100, the second support module 200 and the third support module 300 are all of symmetrical structures. The third support module 300 is positioned at the bottom of the walking aid, and the universal wheels 500 and the rear wheels 600 are respectively connected to the third support module 300; the second support module 200 is vertically arranged on the third support module 300, and the second support module 200 can be lifted to adjust the height of the walking aid; the first support module 100 is provided on the second support module 200 to be lifted and lowered together with the second support module 200. The first support module 100 includes a first U-shaped support frame and a pair of control handles 130, the first U-shaped support frame includes a first connecting member 110 and a pair of first sidewalls 120 extending outward from both ends of the first connecting member 110, and the control handles 130 are rotatably connected to ends of the corresponding first sidewalls 120, respectively, so that the control handles 130 can be folded toward the U-shaped space of the first U-shaped support frame (see fig. 8). The third supporting module 300 includes a second U-shaped supporting frame and a pair of third connecting members 330, the second U-shaped supporting frame includes a second connecting member 310 and a second sidewall 320 extending outward from both ends of the second connecting member 310, the third connecting members 330 are rotatably connected to ends of the second sidewall 320, respectively, and the third connecting members 330 can be folded toward the U-shaped space of the second U-shaped supporting frame. The universal wheels 500 are connected to the second U-shaped support frame and located at two sides of the second connecting member 310, and the rear wheels 600 are connected to the end of the third connecting member 330 far from the second side wall 320. The second support module 200 comprises a first telescopic part 210 and a second telescopic part 220, two ends of the first telescopic part 210 are respectively connected to the first connecting part 110 of the first U-shaped support frame and the second connecting part 310 of the second U-shaped support frame, two ends of the second telescopic part 220 are respectively connected to the control handle 130 and the third connecting part 330, and can move together with the control handle 130 and the third connecting part 330 into the U-shaped space.

The folding obstacle crossing walker of the present invention has an open configuration as shown in FIG. 1 and a folded configuration as shown in FIG. 8. In the folded state, the control handle 130 and the third connecting member 330 can be folded toward the U-shaped space, and the second support module 200 can be lowered, so that the walker which is not in the use state is reduced in size and is convenient to store and carry.

In some embodiments, as shown in fig. 2, the two first sidewalls 120 of the first U-shaped support frame are a square tube structure, and a first dust cap 121 (see fig. 3) is disposed at an end of the first sidewalls 120.

In some embodiments, a second dust cap 331 (see fig. 1) is disposed on the third connector 330. The third link 330 may be hingedly connected to an end of the second side wall 320 such that it can be rotated relative to the second side wall 320 into the U-shaped space of the second U-shaped support bracket.

In some embodiments, as shown in fig. 2, a handle 140 is further disposed on the first U-shaped supporting frame, and the handle 140 is rotatably connected to two ends of the first connecting member 110 of the first U-shaped supporting frame and symmetrically disposed. The grip 140 includes a damping bracket 141 and a connecting rod 142, the damping bracket 141 is connected to the first connecting member 110, and the connecting rod 142 is disposed on the damping bracket 141. The grip 140 is suitable for users with better arm muscle strength. The damping support 141 can be further provided with a damping sheet, and when the grip 140 is used, the grip 140 keeps an upright state, so that the ergonomic concept is met. A U-shaped arm rest pad 150 may be disposed above the first sidewall 120, and when the grip 140 is not in use, the grip 140 may be rotated such that the grip 140 is received in the U-shaped channel of the U-shaped arm rest pad 150. The rubber sleeve can be arranged on the part of the grip 140 for holding, so that the comfort is improved.

The control handle 130 is suitable for users with weak arm muscle and provides better comfort for the user. In some embodiments, as shown in fig. 2, the control handle 130 includes a second square pipe 131 and a circular pipe 132, one end of the second square pipe 131 is hinged to the end of the first side wall 120 far away from the first connecting member 110, and one end of the circular pipe 132 is connected to the other end of the second square pipe 131, so that the second square pipe 131 and the circular pipe 132 can be folded into the U-shaped space of the first U-shaped support frame. The round tube 132 is convenient for a user to hold, and a rubber sleeve can be arranged on the round tube 132, so that the use comfort is improved.

As shown in fig. 3 and 4, the second support module 200 is liftable, wherein the first telescopic member 210 is located between the first connecting member 110 of the first U-shaped support frame and the second connecting member 310 of the second U-shaped support frame, the first telescopic member 210 includes a pair of first square tubes 211, a pair of air spring rods 212 and a dc push rod motor 240, one end of each first square tube 211 is connected to the second connecting member 310, the pair of first square tubes 211 are arranged in parallel, one end of each pair of air spring rods 212 is inserted into the corresponding first square tube 211 and moves in a telescopic manner, and the other end of each air spring rod 212 is connected to the first connecting member 110; a transverse reinforcing bar 230 is disposed between the pair of first square tubes 211, and one end of a dc push rod motor 240 is disposed on the reinforcing bar 230 and the other end is connected to the second connector 310. The second expansion part 220 includes a pair of second fixing rods 221 and a pair of second expansion rods 222, one end of each second fixing rod 221 is connected to the corresponding third connecting member 330, the other end of each second fixing rod is inserted into the corresponding second expansion rod 222, the upper portion of each second expansion rod 222 is connected to the corresponding control handle 130, and the second expansion part 220 is movable within the fixing rods. The first and second

extendable members

210 and 220 may be driven by a dc push rod motor 240 to adjust the height. The expansion range of the expansion piece can be set according to practical settings, and preferably, can be set to 750 mm and 950 mm. The second support module 200 achieves the purpose of adjusting the height of the walking aid by adjusting the length of the telescopic member, and the reinforcing rods 230 can ensure the stability of the support of the walking aid.

The third support module 300 plays a main supporting role. The second side wall 320 of the second U-shaped supporting frame may be a square tube structure. In some embodiments, as shown in fig. 5, a battery case 410 may be disposed on each of the two second sidewalls 320, and the battery case 410 may be divided into upper and lower layers to increase the battery capacity. Two side surfaces of the battery box 410 can adopt a grid hollow design, so that the weight is reduced, and heat dissipation is facilitated. A control box 420 may be provided on the second connector 310. Therefore, some electronic components can be arranged on the walking aid to expand the functions of the walking aid. For example, a light bulb 421 for night illumination is installed at the front end of the control box 420; a sensor mounting plate 422 can be mounted in the middle of the front end of the control box 420, a pair of radar sensors 423 and a binocular camera 424 are arranged on the sensor mounting plate 422 and used for monitoring obstacles, and the three can be distributed in a triangular shape, so that the sensors are prevented from blocking sight; an ultrasonic sensor 525 may be further provided, and the ultrasonic sensor 525 may be provided on the first connecting member 110 and the second connecting member 310, and may be disposed in a vertically and horizontally symmetrical arrangement for detecting a distance to an obstacle in front. Through these electronic components, expanded the function of helping the capable ware, further promoted the security of using.

In some embodiments, as shown in fig. 5, the universal wheel 500 may be connected to the second U-shaped support frame by a third telescopic member 510. The third telescopic member 510 includes a third fixing rod 511 and a third telescopic rod 512, the third fixing rod 511 may be fixed on the second side wall 320 of the second U-shaped supporting frame, the third telescopic rod 512 is telescopically connected to the third fixing rod 511, the end of the third telescopic rod 512 is connected to the universal wheel 500, and the third telescopic member 510 may control telescopic movement in an electric manner, for example, a pen-type telescopic motor may be used to provide power to achieve electric telescopic movement. The castor 500 may be a 267mm diameter wheel so that it can span obstacles within 15 cm. The diameter of the universal wheel 500 may be larger than that of the rear wheel 600, for example, the rear wheel 600 is designed to have a diameter of 200mm, such that the diameter of the front wheel is larger than that of the rear wheel 600, in accordance with ergonomic concept,

in some embodiments, the rear wheel 600 may be driven by a hub motor, increasing the driving force arm, thereby improving the ability of the walker to climb slopes, cross obstacles, and the like. The round tube 132 of the control handle 130 can be provided with a pressure sheet, and the driving force of the motor can be adjusted according to the grip strength, so that the power-assisted effect is achieved.

In some embodiments, as shown in fig. 1 and 7, the walker further comprises a seat module 700. The seat module 700 includes a seat pan 710, a backrest 730, a fourth link 720, and an angle bracket 740. The height of the seat plate 710 may be set as desired, and preferably, set to 420 mm. One side of the seat plate 710 is connected to a fourth link 720, and the fourth link 720 is hinged to a middle lower portion of the first extensible member 210. The fourth link 720 is coupled to the seat plate 710 by a bolt. The seat plate 710 has a proper height and is comfortable to use, and meets the ergonomic concept. The backrest 730 is coupled to the first expansion member 210 below the reinforcing bar 230. The backrest 730 may be tapered, with rounded edges, and the thicker end of the backrest 730 facing downward, in accordance with ergonomic considerations. The corner brace 740 is connected to the bottom end of the backrest 730 for supporting the backrest 730. The seat module 700 can be used for a user to rest and can be easily folded when not in use.

In some embodiments, the square tubes and round tubes used in the invention can be made of hollow aluminum alloy, so that the walking aid is light in weight. All the ports of the hollow pipe can be provided with dustproof covers to form a closed hollow pipe.

In the description of the present invention, the terms "upper", "lower", "left", "right", "front", "middle upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limitations of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "connected," "disposed" and "mounted" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be specifically understood by those of ordinary skill in the art.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A folding obstacle walking aid, characterized in that it comprises a first support module, a second support module, a third support module, a universal wheel and a rear wheel, the first support module, the second Both the support module and the third support module are symmetrical structures; the third support module is arranged at the bottom of the obstacle crossing walker, the second support module is arranged on the third support module, the The second support module is liftable; the first support module is arranged on the second support module;

Wherein, the first support module includes a first U-shaped support bracket and a pair of control handles, the pair of control handles are respectively rotatably connected to the two first side walls of the first U-shaped support bracket, The pair of control handles are configured to be able to rotate into the U-shaped space of the first U-shaped support bracket;

The third support module includes a second U-shaped support bracket and a pair of third connecting pieces, the pair of third connecting pieces are respectively rotatably connected to the two second side walls of the second U-shaped support bracket On the other hand, the pair of third connecting pieces are configured to be able to rotate into the U-shaped space of the second U-shaped supporting bracket; the universal wheels are respectively connected to the first and second U-shaped supporting brackets. two side walls; the rear wheels are respectively connected to the ends of the third connecting piece away from the second U-row support bracket;

The second support module includes a first telescopic piece and a second telescopic piece, two ends of the first telescopic piece are respectively connected to the first U-shaped support bracket and the second U-shaped support bracket, and the first telescopic piece is connected to the first U-shaped support bracket and the second U-shaped support bracket. Both ends of the two telescopic pieces are respectively connected to the control handle and the third connecting piece, so that the second telescopic piece can rotate together with the control handle and the third connecting piece;

The foldable obstacle walking aid has an open state and a folded state.

2 . The foldable obstacle walking aid of claim 1 , wherein the foldable obstacle walking aid further comprises a handle and a U-shaped armrest cushion, the handle being rotatably connected to the The end of the first side wall of the first U-shaped support frame, the U-shaped armrest cushion is provided on the first side wall, and the handle is configured to be rotatable to the U-shaped armrest cushion in the U-shaped groove.

3. The foldable obstacle walking aid according to claim 1, wherein the first telescopic member comprises a pair of first square tubes, a pair of gas spring rods and a DC push rod motor, the pair of The first square tubes are arranged in parallel, one end of the first square tube is connected to the second U-shaped support bracket, the pair of gas spring rods are respectively retractably inserted into the corresponding first square tubes, and the gas spring rods are respectively inserted into the corresponding first square tubes. One end of the spring rod is connected to the first U-shaped support bracket, a reinforcement rod is arranged between the pair of first square tubes, one end of the DC push rod motor is connected to the reinforcement rod, and the other end is connected to the reinforcement rod. The first U-shaped support bracket is described.

4. The foldable obstacle walking aid according to claim 1, wherein the second telescopic member comprises a pair of second fixing rods and a pair of second telescopic rods, the pair of second fixing rods One end of each of the telescopic rods is respectively connected to the corresponding third connecting piece, the pair of telescopic rods are respectively telescopically inserted into the corresponding second fixed rods, and one end of the telescopic rods is connected to the corresponding control rod handle.

5. The foldable obstacle walking aid according to claim 1, wherein a battery box is provided on the second side wall of the second U-shaped support frame, and the second U-shaped support frame is provided with a battery box. A control box is arranged on the second connecting piece of the control box, light bulbs are arranged at both ends of the control box, a sensor mounting plate is arranged in the middle of the control box, and a radar sensor and a binocular camera are arranged on the sensor installation plate.

6 . The foldable obstacle walking aid of claim 1 , wherein the universal wheel is connected to the second side wall through a third telescopic piece, and the third telescopic piece includes a third fixing piece. 7 . a rod and a third telescopic rod, the third fixed rod is connected to the surface of the second side wall, the third telescopic rod is telescopically inserted into the third fixed rod, the end of the third telescopic rod Connect the universal wheel.

7. The folding obstacle walking aid of claim 1, wherein the folding obstacle walking aid further comprises a seat module rotatably connected to the second support module.

8. The foldable obstacle walking aid according to claim 7, wherein the seat module comprises a seat panel, a backrest, a fourth connecting piece and a corner code, and one side of the seat panel is connected To the fourth connecting piece, the fourth connecting piece is hinged to the second support module, the backrest is connected to the first telescopic piece, the backrest is conical, the thicker one of the backrest is Set side down.

9 . The foldable obstacle walking aid according to claim 1 , wherein the control handle comprises a second square tube and a round tube, and one end of the second square tube is hinged to the first side wall. 10 . , the other end of the second square tube is connected to the round tube, and the round tube is provided with a rubber sleeve for the user to hold.

10 . The foldable obstacle walking aid according to claim 1 , wherein the first side wall and the second side wall are both square tube structures. 11 .