CN214356150U

CN214356150U - Foldable walking aid for old people

Info

Publication number: CN214356150U
Application number: CN202120345646.9U
Authority: CN
Inventors: 于东玖; 叶君怡
Original assignee: Nanjing Tech University
Current assignee: Nanjing Tech University
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-10-08
Anticipated expiration: 2031-02-07

Abstract

The utility model discloses a foldable walking aid for the old, which is of a bilateral symmetry structure, and each side of the walking aid comprises a first frame component for mounting rear wheels, a second frame component for mounting front wheels and a handrail tube component for mounting handrails; the handrail pipe assembly is inserted at the top of the first frame assembly, and the inserting height can be adjusted up and down; the second frame component is detachably inserted into the front end of the first frame component; the first frame components on the two sides are connected through the cross rod bracket, and the cross rod bracket can rotate around the rotating middle shaft of the cross rod bracket, so that the first frame components on the two sides are folded to be close to each other. The folding middle parts of the first frame components on two sides form a space capable of accommodating the second frame component, and the disassembled second frame component and the front wheels are arranged in the accommodating space, so that the folding volume of the rollator is minimized.

Description

Foldable walking aid for old people

Technical Field

The utility model relates to an old man helps capable instrument, especially a collapsible, the old man who dismantles helps capable car.

Background

Most of the existing walking aid vehicle structures for the old people on the market are formed by processing and forming processes such as cold bending and welding by using a tubular part as a main body, the production period and the supply period of most factories are long due to the inferior situation of the processes, and the high-quality, high-efficiency and high-standard production of walking aid vehicle products cannot be ensured. The existing foldable rollator generally has a symmetrical structure and is composed of a frame assembly, a supporting assembly, a wheel assembly and a reinforcing sleeve, the frame assembly and the supporting assembly are generally fixedly connected, a bearing cross rod is connected with a hinged shaft in order to realize the folding purpose, two side supports are hinged through a hinged seat and are folded around the hinged shaft, and the two side supports move along with the cross rod and are drawn close to the middle.

Although the mode has been realized folding, its volume is still great after folding and accomodating, and its structure portability is general and lack the aesthetic property, can't satisfy consumer's growing consumption demand, and in the commodity circulation transportation link, the packing size of product will directly influence capacity of goods and cost of transportation.

Chinese patent CN305750427S discloses a four-wheel rollator, which comprises a frame assembly, a wheel assembly, a backrest tube assembly and a seat cushion, and the four-wheel rollator can be folded transversely, thereby saving packaging materials, but has simple functions, no armrest support frame and difficult storage after being folded.

Chinese patent CN202822023U discloses a four-wheel walking aid vehicle, which mainly comprises a frame component, a front wheel component, a rear wheel component, a handrail tube component, a backrest tube component and a seat cushion, wherein four casters of the four-wheel walking aid vehicle can be disassembled, and the four-wheel walking aid vehicle is convenient to transport and store, and simultaneously adopts a telescopic positioning sleeve rod, so that the height of the product can be freely adjusted, and the range of applicable people is enlarged. The folding chair is mainly characterized by simple structure, low cost and easy transportation and collection, but the volume is still larger after the technical scheme is folded, and the folding chair does not have good portability and structure.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to solve the technical problem that to prior art not enough, provide a collapsible, portability is good, factor of safety is high, folding accomodate small, the wholeness can be good and practical folding help the driving.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a collapsible old man helps capable car, it is bilateral symmetry structure, and every side all includes:

a first frame component for mounting rear wheels, a second frame component for mounting front wheels, and an armrest tube assembly for mounting an armrest;

the handrail pipe assembly is inserted at the top of the first frame assembly, and the inserting height can be adjusted up and down; the second frame component is detachably inserted into the front end of the first frame component;

the first frame components on the two sides are connected through a folding mechanism, and the folding mechanism can rotate around a rotating middle shaft of the folding mechanism, so that the first frame components on the two sides are folded to be close to each other.

Further, the folded middle parts of the first frame components on the two sides form a space capable of accommodating the second frame component, and the disassembled second frame component and the front wheels are arranged in the accommodating space, so that the folding volume of the rollator is minimized.

Specifically, the front end of the first frame component is connected with the rear end of the second frame component through an insertion groove, and a threaded hole is reserved on the groove surface; the second frame component slides into the front end of the first frame component from bottom to top through the insertion groove and is fixed through the screw holes reserved on the rotary groove surface of the fixing bolt.

Specifically, the armrest tube assembly is inserted into a groove in the top of the first vehicle frame assembly in a penetrating manner, and a group of height-adjusting round holes are formed in the tube body in the longitudinal direction; the top of the first vehicle frame component is coupled with a rotary button, one end of the rotary button is a pressing end, the other end of the rotary button is a free end, and the pressing end is pressed through shifting, so that the free end is clamped into/withdrawn from a height-adjusting round hole in the handrail pipe component, and therefore the inserting height adjustment of the handrail pipe component on the first vehicle frame component is achieved.

Specifically, the upper parts of the handrail tube assemblies on the two sides are connected with the backrest strap through the inclusion piece, one side of the upper part of the handrail tube assembly is provided with a linear groove which is matched and fixed with the inclusion piece, and the position of the backrest strap is adjusted by adjusting the inclusion piece; the two ends of the wrapping piece are connected through bolts and the handrail pipe assembly is tightly held and fixed.

Specifically, the folding mechanism is a cross bar support, and the cross bar support can rotate around a rotating middle shaft of the cross bar support, so that the folding of the first frame components on two sides is realized; the two side ends of the cross rod bracket are respectively and movably connected to the first frame components at the two sides in a hinged mode, and the top ends of the cross rod bracket are fixed on cross rods wrapped at the two sides of the cushion; the inner sides of the first frame components on the two sides respectively comprise two concave block type supports for supporting the cross rod; the cushion at the top of the cross bar bracket folds and unfolds along with the cross bar bracket.

Further, the front end of the cushion is provided with a storage bag.

Preferably, one side of the first vehicle frame component is coupled with one end of the rear wheel support through a first pin shaft, and one side of the second vehicle frame component is coupled with one end of the front wheel support through a second pin shaft; the rear wheel rotates around the first pin shaft, and the front wheel rotates around the second pin shaft; the rear wheel support and the front wheel support are respectively provided with two station holes, one side of the first vehicle frame component and the other side of the second vehicle frame component are respectively provided with a fixing hole, the fixing holes in the first vehicle frame component and the second vehicle frame component respectively correspond to the station holes in the front wheel support and the rear wheel support, and the fixing holes are fixed through bolts.

Furthermore, one side of the first frame component is provided with a crutch tray, and the inner side of the rear wheel is connected with the pedal booster through a connecting sleeve.

Further, the top of the handrail tube assembly is provided with a handrail and a hand brake for driving a rear wheel brake pad.

Has the advantages that:

the symmetrical structure of the foldable walking aid vehicle for the old people and the second frame component can realize independent folding, so that the walking aid vehicle has better folding property, smaller volume and lower packaging and transportation cost; a push-press adjusting button is arranged at the joint of the first frame component and the handrail tube component, so that the insertion height adjustment operation of the handrail tube component on the first frame component is more convenient, and the safety coefficient is higher; the cross rod support is additionally provided with the supporting frame, the supporting performance is further improved, larger weight can be borne, the anti-friction protection piece is additionally arranged, and the service life of the cross rod support is prolonged.

Drawings

These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.

Fig. 1 is a structural schematic diagram of the foldable walking aid vehicle for the aged in the using state.

FIG. 2 is a partial schematic view of the first frame component and the second frame component in a looping configuration.

FIG. 3 is a schematic view of the engaging member and the adjustable button at the joint of the first frame member and the handle tube member.

Fig. 4 is a partial structure view of the connection between the handle tube assembly and the backrest assembly.

Fig. 5 is a structural schematic diagram of the foldable walking aid for the aged in a folding state.

Wherein each reference numeral represents:

1 a first vehicle frame component; 101, inserting a slot; 102 grooves; 103 a first pin; 104 a second pin; 2 a second frame component; 3, a handrail tube component; 31 heightening the round hole; 4, a rear wheel bracket; 5 a front wheel bracket; 6, a rear wheel; 7 front wheels; 8, a handrail; 9, a hand brake; 10 a crossbar mount; 11 rotating the middle shaft; 12, cushion; 13 a cross bar; 14 crutch trays; 15 leaning against the braces; 16 fixing the bolt; 17 a storage bag; 18 a rotary button; 181 pressing end; 182 a free end; 19 an enveloping member; 20 concave block type bracket.

Detailed Description

The invention will be better understood from the following examples.

The drawings in the specification show the structure, ratio, size, etc. only for the purpose of matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and not for the purpose of limiting the present invention, so the present invention does not have the essential meaning in the art, and any structure modification, ratio relationship change or size adjustment should still fall within the scope covered by the technical content disclosed in the present invention without affecting the function and achievable purpose of the present invention. Meanwhile, the terms "upper", "lower", "front", "rear", "middle", and the like used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

As shown in fig. 1, the foldable senior walker has a bilaterally symmetrical structure, and each side has a first frame assembly 1 for mounting rear wheels, a second frame assembly 2 for mounting front wheels, and a handle pipe assembly 3 for mounting handrails.

The handrail pipe assembly 3 is inserted into the top of the first frame assembly 1, and the inserting height can be adjusted up and down; the second frame component 2 is detachably connected to the front end of the first frame component 1.

The first frame components 1 on both sides are connected by a cross bar bracket 10, and the cross bar bracket 10 can rotate around a rotation central shaft 11, so that the first frame components 1 on both sides are folded to be close. The folded middle portions of the first frame components 1 on both sides form a space capable of accommodating the second frame component 2.

One side of the first vehicle frame component 1 is coupled with one end of the rear wheel support 4 through a first pin shaft 103, and one side of the second vehicle frame component 2 is coupled with one end of the front wheel support 5 through a second pin shaft 104. The rear wheel 6 is able to rotate about a first pin 103 and the front wheel 7 rotates about a second pin 104. Two station holes are formed in the rear wheel support 4 and the front wheel support 5, and a fixing hole is formed in one side of the first frame component 1 and the other side of the second frame component 2 respectively. The fixing holes on the first frame component 1 and the second frame component 2 correspond to the station holes in the front wheel bracket 5 and the rear wheel bracket 4, respectively, and are fixed by penetrating through bolts.

One side of the first vehicle frame component 1 is provided with a crutch tray 14, and the inner side of the rear wheel 6 is connected with the pedal booster through a connecting sleeve, so that the product safety is further ensured.

As shown in fig. 2, insertion grooves 101 for connection are formed in one side of the first frame component 1 and the corresponding side of the second frame component 2, screw holes are formed in the groove surfaces, before the vehicle is in use, the second frame component 2 slides in from bottom to top in a mechanical mode, is correspondingly connected with the first frame component in an encircling manner along the longitudinal inner side, and is fixed by rotating into the screw holes through fixing bolts 16; when the folding is carried out, the fixing bolt 16 is screwed out, and the second frame component 2 is moved out from top to bottom in a mechanical mode, so that the folding is convenient and the folding area is reduced.

As shown in fig. 3, the outer wall of the handrail tube assembly 3 is provided with a height-adjusting round hole 31, the handrail tube assembly 3 penetrates through the groove 102 at the top of the first frame assembly 1, and the tube body is longitudinally provided with a group of height-adjusting round holes 31; the top of the first vehicle frame component 1 is coupled with a rotary button 18, one end of the rotary button 18 is a pressing end 181, the other end of the rotary button 18 is a free end 182, and the free end 182 is clamped in/withdrawn from the height-adjusting round hole 31 on the handrail tube component 3 by pushing the pressing end 181, so that the insertion height adjustment of the handrail tube component 3 on the first vehicle frame component 1 is realized. The top of the handrail tube component 3 is provided with a handrail 8 and a hand brake 9 for driving a brake pad of a rear wheel.

As shown in fig. 4, the upper parts of the handrail tube assemblies 3 on both sides are connected with the backrest belt 15 through the packing piece 19, the backrest belt 15 is positioned above the seat cushion 12, and the bottom of the seat cushion 12 is provided with a receiving bag 17. A linear groove is reserved on one side of the upper part of the handrail tube component 3 and is matched and fixed with the wrapping piece 19, and the position of the backrest strap 15 is adjusted by adjusting the wrapping piece 19. The two ends of the wrapping member 19 are connected by bolts and hold the handrail tube assembly 3 tightly.

The folded state is shown in fig. 5, and the second frame component 2 can be detached and folded independently. The front wheel 7 is coupled at one side of the other end of the front wheel bracket 5 to form a universal wheel structure; the other end of the rear wheel bracket 4 is coupled with a rear wheel 6 in a shaft-engaging mode to form a directional wheel structure. The handrail tube component 3 is a sleeve, the bottom of the handrail tube component is fixed at the upper middle part of the first vehicle frame component 1 through a groove 102, and the handrail tube component 3 is connected with the first vehicle frame component 1 in an embedded manner;

as shown in fig. 1 and 3, a cross bar bracket 10 is provided between the first frame components 1 on both sides and can rotate around a rotation central axis 11 thereof; the two side ends of the cross bar bracket 10 are respectively and movably connected to the first frame components 1 at the two sides in a hinged mode, and the top ends of the cross bar bracket are fixed on cross bars 13 wrapped at the two sides of the seat cushion 12; the inner sides of the first vehicle frame components 1 on two sides respectively comprise two concave block type brackets 20 for supporting the cross rod 13; the seat cushion 12 on top of the cross bar frame 10 folds and unfolds along with the cross bar frame 10.

When the seat cushion is in use, the first frame component 1 and the second frame component 2 on the two sides move oppositely, at the moment, the cross rod bracket is opened, and the seat cushion 12 is opened; when the folding is carried out, the seat cushion 12 is lifted, the first frame component 1 and the second frame component 2 on the two sides are close to each other, the cross rod support 10 is folded, and the rollator is folded. The middle rotary middle shaft 11 of the cross bar bracket 10 is provided with an anti-friction protection sheet for separating two cross bars of the cross bar bracket 10 so that the two cross bars are not contacted with each other.

The utility model provides a thinking and method of collapsible old man's capable car specifically realize this technical scheme's method and approach many, above only the utility model discloses a preferred embodiment should point out, to the ordinary technical personnel of this technical field, is not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improve and moist decorations should also regard as the utility model discloses a protection scope. All the components not specified in the present embodiment can be realized by the prior art.

Claims

1. The utility model provides a collapsible old man helps capable car which characterized in that, it is bilateral symmetry structure, and every side all includes:

a first frame assembly (1) for mounting rear wheels, a second frame assembly (2) for mounting front wheels, and an armrest tube assembly (3) for mounting an armrest;

the second frame component (2) is detachably inserted into the front end of the first frame component (1);

the first vehicle frame components (1) on the two sides are connected through a folding mechanism, and the first vehicle frame components (1) on the two sides are folded to be close to each other.

2. Foldable senior walker according to claim 1, wherein the folded first frame components (1) on both sides form a space in the middle for receiving the second frame component (2).

3. The foldable senior walker according to claim 2, wherein the front end of the first frame member (1) is connected with the rear end of the second frame member (2) through a plug-in slot (101), and a threaded hole is reserved on the slot surface; the second frame component (2) slides into the front end of the first frame component (1) from bottom to top through the insertion groove (101) and is fixed through a screw hole reserved in the groove surface through a fixing bolt (16) in a rotating mode.

4. The foldable senior walker according to claim 2, wherein the armrest tube assembly (3) is penetratingly inserted into a groove (102) at the top of the first frame assembly (1), and the tube body is provided with a set of height-adjusting round holes (31) along the longitudinal direction; the top of the first vehicle frame component (1) is connected with a rotary button (18) in a shaft mode, one end of the rotary button (18) is a pressing end (181), the other end of the rotary button is a free end (182), and the pressing end (181) is pressed through pulling so that the free end (182) can be clamped into/withdrawn from a height-adjusting round hole (31) in the armrest tube component (3), and therefore the inserting height adjustment of the armrest tube component (3) on the first vehicle frame component (1) is achieved.

5. The foldable senior walker as claimed in claim 2, wherein the upper parts of the arm tube assemblies (3) at both sides are connected to the backrest strap (15) by the wrapping member (19), one side of the upper part of the arm tube assemblies (3) is provided with a linear groove to be fitted and fixed with the wrapping member (19), and the position of the backrest strap (15) is adjusted by adjusting the wrapping member (19); the two ends of the packing piece (19) are connected through bolts and hold the handrail tube component (3) tightly.

6. The foldable geriatric rollator according to claim 2 wherein the folding mechanism is a crossbar bracket (10), the crossbar bracket (10) being rotatable about its central axis of rotation (11) to enable folding of the first frame components (1) on both sides; the two side ends of the cross rod bracket (10) are respectively and movably connected to the first frame components (1) at the two sides in a hinged mode, and the top ends of the cross rod bracket are fixed on cross rods (13) wrapped at the two sides of the seat cushion (12); the inner sides of the first vehicle frame components (1) on the two sides respectively comprise two concave block type supports (20) for supporting the cross rod (13); the seat cushion (12) on the top of the cross bar support (10) folds and unfolds along with the cross bar support (10).

7. Foldable rollator for elderly people according to claim 6, wherein the front end of the seat cushion (12) is provided with a receiving bag (17).

8. The foldable senior walker according to claim 1, wherein one side of the first frame assembly (1) is coupled to one end of the rear wheel support (4) by a first pin (103), and one side of the second frame assembly (2) is coupled to one end of the front wheel support (5) by a second pin (104); the rear wheel (6) rotates around a first pin shaft (103), and the front wheel (7) rotates around a second pin shaft (104); the rear wheel support (4) and the front wheel support (5) are respectively provided with two station holes, one side of the first frame component (1) and the other side of the second frame component (2) are respectively provided with a fixing hole, the fixing holes in the first frame component (1) and the second frame component (2) respectively correspond to the station holes in the front wheel support (5) and the rear wheel support (4), and the fixing holes are penetrated through bolts to be fixed.

9. Foldable rollator for elderly people according to claim 1, wherein one side of the first frame assembly (1) is provided with a crutch tray (14) and the inside of the rear wheel (6) is connected with the foot booster by a connection sleeve.

10. Foldable senior walker according to claim 1, wherein the top of the arm rest tube assembly (3) is provided with an arm rest (8) and a hand brake (9) for driving the rear wheel brake pads.