CN102512310B - Foldable multifunctional rollator - Google Patents

Abstract

The invention relates to a three-wheeled multifunctional rollator. Its technical scheme is: the front ends of two vehicle frames [12] are installed symmetrically on the top of the hinged bracket [14], the universal wheels [13] are installed below, and the rear wheels [11] are equipped with on the rear ends of the vehicle frames [12]. , the front end of the vehicle frame [12] is equipped with a horizontal pedal [15], the vertical bar of the vehicle frame [12] is sleeved with a handrail [1], and the vertical bar of the vehicle frame can be folded by the folding shaft [9]; the movable backrest [21 ] installed on the strap bracket [22] can change the position forward and backward to realize the functions of wheelchair and rest seat; lift the lifting rope [3], and fold the rotating sleeve [5] on both sides of the seat plate [4] around the horizontal The rotation of the axis [18] and the rotation of the horizontal axis [18] around the vertical short axis [19] realize the folding of the vehicle frame [12]; a shopping bag [16] is installed under the folding seat plate [4] to realize the shopping function The baby car bucket [32] is installed on the vehicle frame [12] additionally, realizes the baby carriage function. The invention has the characteristics of simple structure, strong passability, convenient folding, small storage space and multi-function.

Description

A foldable multifunctional rollator

technical field

The invention belongs to the technical field of rolling aids. Specifically relates to a foldable multifunctional rollator.

Background technique

With the increase of the elderly population and the expansion of the scope of activities of the elderly in our country, the life of the elderly has received more and more attention from the society. In order to improve the self-care ability of the elderly, expand the scope of activities of the elderly, increase the opportunities for the elderly to live with infants and enrich the fun of life for the elderly, the multi-functional rollator will gradually become an auxiliary tool for the life of the elderly.

At present, the rollator on the market has a single function, and is mostly used to assist users in walking, shopping and resting. The structure mostly adopts a four-wheel structure. The four-wheel structure has two folding methods for the frame: left and right and front and rear. That is, the cross frame connecting the left and right frames is used to realize the horizontal folding of the rollator, or the cross frame connecting the front and rear frames is used to realize the longitudinal folding of the rollator. The overall structure is complex, the parts are too many, and the manufacturing cost is high. High, large volume when folded and folded; when folding, you need to squeeze the cross frame first, change the angle of the cross frame to realize the folding of the rollator, and it is laborious to fold. It is difficult to fold the frame of the existing three-wheeled rollator directly, because the folding and rotating of the seat plate and the folding and rotating of the frame are not at the same point and in the same plane when folding, the two frames of the three-wheeled rollator surround the front When the fulcrum rotates, the frame and the seat plate interfere, so when the two frames of the existing three-wheeled rollator are folded, it is necessary to remove the seat plate from the frame and then fold the frame, resulting in a three-wheeled rollator. The retractable rollator is cumbersome and bulky when folded.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art, and the purpose is to provide a device with simple structure, low cost, convenient folding, small storage space and functions of assisting walking, parking and sitting, shopping and carrying goods, serving as a wheelchair and baby carriage, etc. multifunctional rollator.

In order to achieve the above object, the technical solution adopted by the present invention is: the front ends of the two vehicle frames are symmetrically arranged above the hinged bracket, the bottom of the hinged bracket is connected with a universal wheel, the rear end of the vehicle frame is equipped with a rear wheel, the brake One end of the wire is connected to the brake handle, and the other end passes through the handrail and the frame to connect with the brake; the front parts of the cross bars of the left and right frames are respectively equipped with rotatable horizontal pedals, and the vertical bars of the frame are equipped with pin pull handles , locking pin, folding shaft and fixed pin, the armrest bar is sleeved on the vertical bar of the frame, the movable backrest is installed on the strap bracket of the armrest bar; The rotating sleeve on the side is set on the horizontal shaft, the positioning pin hook is inserted into the positioning pin hole of the rotating sleeve and the horizontal shaft, the horizontal shaft is connected with the vertical short shaft fixed on the inside of the frame, and the shopping bag is hung on the positioning pin hook. superior.

The front end of the baby carriage is supported on the plane formed by the vehicle frame and the horizontal pedal, and the rear end of the baby carriage is stuck on the seat plate through the reverse hook of the carriage.

The vehicle frame is an inverted "L" structure composed of a cross bar and a vertical bar, the horizontal bar is bent horizontally inward, the vertical bar is tilted forward from the rear end of the cross bar of the vehicle frame, and the vertical bar can be folded around the folding shaft.

The hinged bracket adopts a three-hole sleeve structure fixed by a triangular plate, and the triangular plate used to fix the three-hole sleeve can be a single-layer board or a double-layer board.

The baby carriage is composed of a grid structure bottom and four sidewalls, the bottom and sidewalls are connected by hinges, and a corner clip is set at the upper left corner of each sidewall. , There are hook pins on the side walls of the car bucket on the left and right sides, and springs and nuts are installed on the lower part of the hook pins.

Due to the adoption of the above-mentioned scheme, the vehicle frame utilized in the present invention is a reverse "L" type vehicle frame vertical bar forward structure, and the cross bar is bent horizontally inward, so that the front part of the vehicle frame cross bar forms a plane, and the folded seat plate below The space increases. The horizontal pedal installed at the front of the cross bar has multiple functions: when the foldable multifunctional rollator is used as a wheelchair, the horizontal pedal is used as a foot pedal; when it is used to transport goods, the horizontal pedal is used as a platform for placing goods; When the baby carriage is in use, the horizontal pedal can be used as a supporting and fixed platform for placing the baby carriage.

The connection between the folding seat plate and the vehicle frame adopted in the present invention is a three-axis structure: a flat hinge connecting the two symmetrical parts in the middle of the folding seat plate, a horizontal shaft installed on the rotating sleeve, and a vertical circular hole set on the horizontal shaft vertical minor axis of . During the folding process of the folding seat plate around the flat hinge, the folding seat plate rotates around the horizontal axis, and at the same time, the horizontal axis rotates around the vertical short axis. The three-axis linkage eliminates the interference between the folding seat plate and the frame during the folding process, ensuring The linkage between the folding seat plate and the vehicle frame is simplified when the foldable multifunctional rollator is folded, the structure of the vehicle body is simplified, the unfolding and folding of the foldable multifunctional rollator is facilitated, and the storage space of the rollator is reduced.

The foldable seat plate adopted by the present invention plays the functions of seat, connection and fixing the vehicle frame. The left and right cross frames or front and rear cross frames of the frame make the car body structure relatively simple; after the unfolded positioning pin holes on the rotating sleeves on both sides of the folded seat plate are aligned with the positioning pin holes on the horizontal axis, insert the positioning pin hooks, and at the same time Lock the folding seat board and the frame, and the whole vehicle is stabilized.

In the present invention, the movable backrest made of soft material is installed on the strap bracket, and can be adjusted manually from front to back. When the foldable multifunctional rollator is used as a rest seat, the movable backrest is adjusted to the side close to the universal wheels; when used as a wheelchair, the movable backrest is adjusted to the side close to the rear wheels.

The invention adopts the way of rotating around the hinged bracket to realize the unfolding and folding of the vehicle frame. The armrest bar on the vehicle frame has the effect of increasing the force arm, so that the left and right vehicle frames can be easily and labor-saving when folding and unfolding. After the left and right vehicle frames are folded , press the pull pin handle, pull out the locking pin, pull the armrest bar to make it rotate around the folding shaft, realize the folding of the vertical bar of the frame and the hand bar, and further reduce the storage space of the foldable multifunctional rollator.

The invention adopts single universal wheel steering, so that the turning radius of the foldable multifunctional rollator becomes smaller, and is more suitable for use in shops, supermarkets and trails.

The front end of the baby car bucket adopted by the present invention is supported on the plane formed by the vehicle frame and the horizontal pedal. The positioning pin hole on the shaft is used to fix the baby carriage, the spring on the hook pin is used to prevent the hook pin from falling off from the positioning pin hole, and the nut is used to adjust the spring force. The baby carriage is a foldable structure, which is composed of a grid structure bottom and four sidewalls. In the bottom of the car body, the folding of the baby car body is realized; when the four side walls of the car body are erected, the side walls of the car body are fixed through the corner clips to form a baby car body.

Therefore, the present invention has the characteristics of simple structure, strong passability, safety and reliability, low cost, convenient folding, small storage space, etc., and can be used as an auxiliary tool for the elderly to go out for walking and shopping, and can also be used as a wheelchair and a baby carriage.

Description of drawings

Fig. 1 is a kind of structural schematic axonometric drawing of the present invention;

Fig. 2 is a schematic diagram of the collapsed structure of Fig. 1;

Fig. 3 is a schematic diagram of the frame folding structure of Fig. 1;

Fig. 4 is a schematic structural view of the present invention as a stroller;

Fig. 5 is a partially enlarged schematic diagram of fixing the baby carriage in Fig. 4;

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the present invention is further described, not limitation to its protection scope:

A foldable multifunctional rollator, its structure is shown in Figure 1: the front ends of two vehicle frames 12 are symmetrically arranged above the hinged bracket 14, and the bottom of the hinged bracket 14 is connected with a universal wheel 13, and the vehicle frame 12 The rear end of the rear wheel 11 is installed, and one end of the brake line 23 is connected with the brake handle 2, and the other end passes through the handrail bar 1 and the vehicle frame 12 to be connected with the brake 10; Rotatable horizontal pedal 15, the vertical bar of vehicle frame 12 is equipped with pull pin handle 7, locking pin 8, folding rotating shaft 9 and fixed pin 20, armrest bar 1 is sleeved on the vertical bar of vehicle frame 12, movable backrest 21 Installed on the strap bracket 22 of the handrail rod 1; a flat hinge 17 and a lifting rope 3 are installed in the middle of the folding seat plate 4, and the rotating sleeves 5 on both sides of the folding seat plate 4 are set on the horizontal shaft 18, and the positioning pin hook 6 is inserted On the locating pin hole of rotating sleeve 5 and transverse axis 18, transverse axis 18 is connected with the vertical minor axis 19 that is fixed on vehicle frame inner side, and shopping bag 16 is hung on the seat board locating pin hook 6.

As shown in FIG. 4 , the front end of the baby carriage 32 is supported on the plane formed by the vehicle frame 12 and the horizontal pedal 15 , and the rear end of the baby carriage 32 is stuck on the folding seat plate 4 through the carriage antihook 24 .

As shown in Figures 1 and 3, the vehicle frame 12 is an inverted "L"-shaped structure composed of a cross bar and a vertical bar. The vertical bar can be folded around the folding rotating shaft 9 .

As shown in Figure 1, the hinged bracket 14 adopts a three-hole sleeve structure fixed by a triangular plate, and the triangular plate used to fix the three-hole sleeve can be a single-layer board or a double-layer board.

As shown in Fig. 4 and Fig. 5, the baby carriage 32 is made up of a carriage bottom 28 and four carriage sidewalls 31 of grid structure, and the carriage bottom 28 is connected with the carriage sidewalls 31 by a hinge 29. A corner card 30 is established at the upper left corner of each bucket side wall 31, and the bucket side wall 31 on the left and right sides is provided with hook pin 25, and spring 26 and nut 27 are installed on the hook pin 25 bottoms.

The vehicle frame utilized in this specific embodiment is an anti-"L" type vehicle frame 12 with a vertical bar leaning forward structure, and the horizontal bar is bent horizontally inward, so that the front part of the vehicle frame 12 cross bar forms a plane, and the seat plate 4 below is folded. The space increases. The horizontal pedal 15 installed on the front part of the cross bar has multiple functions: when the foldable multifunctional rollator is used as a wheelchair, the horizontal pedal 15 is used as a foot pedal; when it is used to transport goods, the horizontal pedal is used as a platform for placing goods; When used as a baby carriage, the horizontal pedal 15 can be used as a supporting and fixed platform for placing the baby carriage 32 .

The connection between the folding seat plate 4 and the vehicle frame 12 adopted in this specific embodiment is a three-axis structure: the flat hinge 17 connecting the symmetrical two parts in the middle of the folding seat plate 4, the horizontal shaft 18 installed on the rotating sleeve 5 and the horizontal shaft 18 set on the horizontal The vertical minor axis 19 in the vertical direction circular hole on the axle 18. During the folding process of the folding seat plate 4 around the flat hinge 17, the folding seat plate 4 rotates around the horizontal axis 18, and at the same time, the horizontal axis 18 rotates around the vertical short axis 19. The three-axis linkage eliminates the need for the folding seat plate 4 and the frame 12 The interference generated during the folding process ensures the linkage between the foldable seat plate 4 and the frame 12 when the foldable multifunctional rollator is folded, which simplifies the structure of the vehicle body and facilitates the unfolding and closing of the foldable multifunctional rollator combined, reducing the storage space of the rollator.

The foldable seat plate 4 that this specific embodiment adopts plays seat, connects and the function of fixing vehicle frame, when foldable seat plate 4 lays flat as the seat that supports human body weight, the connection of foldable seat plate 4 and vehicle frame 12 has saved The four-wheeled rollator is connected to the left and right cross frames or the front and rear cross frames of the vehicle frame, so that the car body structure is relatively simple; After the alignment, insert the positioning pin hook 6, lock the folding seat plate 4 and the vehicle frame 12 at the same time, and the whole vehicle is stabilized. The movable backrest 21 that soft material is made is installed on the strap support 22, can manually adjust front and back. When the foldable multifunctional rollator was used as a rest seat, the movable backrest 21 was transferred to the side near the universal wheel 13; when used as a wheelchair, the movable backrest 22 was transferred to the side near the rear wheel 11.

This specific embodiment adopts the way of rotating around the hinged bracket 14 to realize the unfolding and folding of the vehicle frame 12. The armrest bar 1 on the vehicle frame 12 has the effect of increasing the force arm, so that the left and right vehicle frames 12 can be easily and effortlessly folded and unfolded. . When folding, when the lifting rope 3 in the middle of the folding seat plate 4 is lifted up, the folding seat plate 4 is folded, and the vehicle frame 12 rotates around the hinged bracket 14 under the traction of the folding seat plate 4 and the gravity of the vehicle frame 12 to realize The folding of the car body; the folding is fixed. After the left and right vehicle frames 12 are folded, after the folding positioning pin holes on the rotating sleeves 5 on both sides of the folding seat plate 4 are aligned with the positioning pin holes on the transverse shaft 18, insert the positioning The pin hook 6 locks the folding seat plate 4 and the vehicle frame 12 at the same time in the folded state, so that the whole vehicle is fixed after being folded; the frame is folded, and the frame is fixed after being folded. Lock pin 8, pull armrest bar 1, make it rotate around folding shaft 9, realize the folding of vehicle frame 12 vertical bar and hand bar, further reduce the storage space of foldable multifunctional rollator; The pin hook 6 stretches the armrest bar 1 and depresses the foldable seat plate 4, and realizes the unfolding of the foldable seat plate 4 and the vehicle frame 12 simultaneously, and opens the vehicle frame 12 to use after being fixed. The single universal wheel 13 is used to steer, so that the turning radius of the foldable multifunctional rollator becomes smaller, and it is more suitable for use in shops, supermarkets and trails.

The front end of the baby car bucket 32 adopted in this specific embodiment is supported on the plane formed by the vehicle frame 12 and the horizontal pedal 15. Pin 25 is inserted in the positioning pin hole on the rotating sleeve 5 and the cross shaft 18 to realize the fixing of the baby carriage 32, the spring 26 on the hook pin 25 is used to prevent the hook pin 25 from coming off from the positioning pin hole, and the nut 27 is used to to adjust the spring force. The baby carriage 32 is a foldable structure, and is made up of a carriage bottom 28 and four carriage sidewalls 31 of a grid structure, and when the four carriage sidewalls 31 rotate around the hinge 29 toward the carriage bottom 28, the four carriages The side walls 31 of the car body are stored in the bottom 28 of the car body to realize the folding of the baby car body 32; .

Therefore, the present invention has the characteristics of simple structure, strong passability, safety and reliability, low cost, convenient folding, small storage space, etc., and can be used as an auxiliary tool for the elderly to go out for walking and shopping, and can also be used as a wheelchair and a baby carriage.

Claims (4)

1. Three-wheel type Multifunctional walking acid, it is characterized in that: the front end left and right symmetrically of two vehicle frames [12] is arranged in the top of articulated stand [14], articulated stand [14] below is connected with a universal wheel [13], the rear end of vehicle frame [12] is equipped with rear wheel [11], brake cable [23] one ends are connected with brake handgrip [2], and the other end passes bar [1] is connected 12 with vehicle frame] be connected with brake [10]; About the cross bar front portion of two vehicle frames [12] be separately installed with rotating horizontal pedal [15], the handle of pulling pin [7], locking pin [8], folding rotary shaft [9] and steady pin [20] are housed on the montant of vehicle frame [12], bar [1] is socketed on the montant of vehicle frame [12], and movable back [21] is installed on the braces support [22] of bar [1]; In the middle of the folding seat board [4] flat hinge [17] and rope [3] are housed, the rotating casing [5] of folding seat board [4] both sides is sleeved on the transverse axis [18], alignment pin colludes on the dowel hole that [6] be inserted into rotating casing [5] and transverse axis [18], and transverse axis [18] is connected with the perpendicular minor axis [19] that is fixed on frame inside;

Baby's wagon box [32] front end is bearing on the plane of vehicle frame [12] and horizontal pedal [15] formation, and baby's wagon box [32] rear end is stuck on the folding seat board [4] by the anti-hook of wagon box [24].

2. Three-wheel type Multifunctional walking acid according to claim 1, it is characterized in that described vehicle frame [12] is anti-" L " type structure of cross bar and montant composition, the inside horizontal buckling of cross bar, montant turns forward from the cross bar rear end of vehicle frame [12], and montant can be folding around folding rotary shaft [9].

3. Three-wheel type Multifunctional walking acid according to claim 1 is characterized in that described articulated stand [14] adopts three fixing borehole jack structures of triangular plate, can adopt lamina or doubling plate for the triangular plate of fixing three borehole jacks.

4. Three-wheel type Multifunctional walking acid according to claim 1, it is characterized in that [28] and four wagon box sidewalls [31] form at the bottom of the wagon box of described baby's wagon box [32] by a grid structure, [28] are connected by hinge [29] with wagon box sidewall [31] at the bottom of the wagon box, establish an angle card [30] in the upper left corner of each wagon box sidewall [31], the wagon box sidewall [31] of the left and right sides is provided with hook pin [25], and hook pin [25] bottom is equipped with spring [26] and nut [27].

Images