Multifunctional folding wheelchair

Abstract

The utility model relates to the field of rehabilitation equipment, and discloses a multifunctional folding wheelchair which comprises an upper supporting frame, a lower supporting frame is arranged at the bottom of the upper supporting frame, the left end and the right end of the lower supporting frame are rotationally connected with idler wheels, an elastic seat cushion is installed on the upper supporting frame, and an elastic back cushion is installed at the rear end of the upper supporting frame. The top of the upper supporting frame is fixedly connected with two groups of push handles, the upper supporting frame is provided with a push rod, a folding assembly is arranged between the upper supporting frame and the lower supporting frame, and the folding assembly enables the upper supporting frame to ascend and descend on the upper supporting frame and the lower supporting frame through the push rod; lifting of the upper supporting frame between the upper supporting frame and the lower supporting frame is achieved, and therefore the purpose of adjusting the height of the seat is achieved; folding is achieved through the folding assembly; the wheelchair is stored, the use space is reduced, and the situation that in the transportation process, due to the large size, the carrying difficulty and cost are increased, and the portability of the wheelchair is limited is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rehabilitation equipment, in particular to a multifunctional folding wheelchair. BACKGROUND

[0002] As an important auxiliary tool for the disabled, the multifunctional folding wheelchair integrates multiple advantages. It not only helps the disabled, the elderly and other groups to realize daily indoor and outdoor movement, but also greatly improves the comfort and convenience of the user by virtue of its multifunctional design, such as adjustable seat height, backrest angle and convenient storage function.

[0003] Application No. 201921395650.5 discloses a wheelchair, the utility model discloses a rotatable pedal assembly is added on the vehicle body of wheelchair, the pedal assembly is rotated for the wheel of wheelchair Provide a flat pad, when the wheelchair passes through uneven ground, the pedal assembly can block the ditch of the ground, so that the wheelchair can smoothly pass through, the pad assembly can also serve as the footboard or table board of the patient at other times, enriching the function of the wheelchair.

[0004] The above-mentioned wheelchair cannot be folded when in use, which leads to a large amount of space occupied during storage, and it is extremely inconvenient whether it is stored at home or stored in public transportation tools, nursing homes and other places. In the transportation process, its large size also increases the difficulty and cost of carrying, limiting the portability of the wheelchair. Therefore, we propose a multifunctional folding wheelchair. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] In view of the shortcomings of the prior art, the utility model provides a multifunctional folding wheelchair, which solves the problem that the above-mentioned wheelchair cannot be folded when in use, which leads to a large amount of space occupied during storage, and it is extremely inconvenient whether it is stored at home or stored in public transportation tools, nursing homes and other places. In the transportation process, its large size also increases the difficulty and cost of carrying, limiting the portability of the wheelchair.

[0007] (II) Technical scheme

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multifunctional folding wheelchair, comprising an upper support frame, the lower support frame is arranged at the bottom of the upper support frame, the left and right ends of the lower support frame are rotatably connected with rollers, an elastic seat cushion is installed on the upper support frame, an elastic backrest is installed at the rear end of the upper support frame, two groups of push handles are fixedly connected to the top of the upper support frame, a push rod is arranged on the upper support frame, and a folding assembly is arranged between the upper support frame and the lower support frame, which makes the upper support frame rise and fall on the upper and lower support frames through the push rod.

[0009] Preferably, the folding assembly further comprises a threaded rod, a first movable strip, a second movable strip, an inner roller, a fixed rod, a groove, a second groove, a sliding block, the groove is arranged in the inner wall of the lower support frame, the inner roller is rotatably connected to the inner wall of the groove, the fixed rod is fixedly connected to the side wall of the lower support frame, the second groove is arranged in the side wall of the upper support frame, the sliding block is slidably connected to the inner wall of the second groove, one end of the first movable strip is movably hinged to the inner wall of the lower support frame, the other end of the first movable strip is movably hinged to the side wall of the sliding block, one end of the second movable strip is movably hinged to the side wall of the inner roller, the other end of the second movable strip is movably hinged to the side wall of the upper support frame, the middle portions of the first movable strip and the second movable strip are rotatably sleeved on the outer wall of the fixed rod, the threaded rod is threadedly connected to the inner wall of the upper support frame and in contact with the side wall of the push rod at one end, and the push rod is fixedly sleeved on the side wall of the sliding block.

[0010] Preferably, the front end of the lower support frame is provided with a foot pedal and is provided with two groups.

[0011] Preferably, the side wall of the upper support frame is fixedly connected with a placing box.

[0012] Preferably, the outer wall of the upper support frame is fixedly connected with an external wheel, and the diameter of the external wheel is smaller than that of the roller.

[0013] Preferably, the side wall of the upper support frame is fixedly connected with an external wheel, and the diameter of the external wheel is smaller than that of the roller.

[0014] Preferably, the side wall of the upper support frame is fixedly connected with an external wheel, and the diameter of the external wheel is smaller than that of the roller.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the multifunctional folding wheelchair has the following beneficial effects:

[0017] 1. The multifunctional folding wheelchair, when the device needs to be folded and stored, unscrew the threaded rod, one end of the threaded rod will lose contact with the slider, when the push rod is actuated, the push rod will drive the slider to slide in the inner wall of the second groove, at this time, the slider will drive the first movable bar to rotate, one end of the first movable bar is hinged to the inner wall of the lower support frame, the other end is hinged to the slider sliding in the second groove, and the middle part of the first movable bar rotates around the fixed rod; one end of the second movable bar is hinged to the inner roller rotating in the groove, the other end is hinged to the side wall of the upper support frame, and the middle part rotates around the fixed rod; at the same time, the upper support frame will be driven downward by the second movable bar, the second movable bar drives the inner roller to move forward in the groove, through the cooperation of the first movable bar, the second movable bar, the slider, the inner roller and the fixed rod, the upper support frame is lifted between the upper and lower support frames, so as to adjust the height of the seat; folding is realized through the folding assembly; the wheelchair is stored, the use space is reduced, the large size increases the difficulty and cost of carrying during transportation, and the portability of the wheelchair is limited.

[0018] 2. The multifunctional folding wheelchair, the placing box on the side wall of the upper support frame provides a convenient storage space for the user. The user can place commonly used items such as books, mobile phones, cups, medicines, etc. in it, so that they can be taken at any time during the movement of the wheelchair without the need to carry an extra bag or worry about where to put the items, improving the convenience of daily use. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the side structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the rear view structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the U-shaped box structure of the utility model;

[0024] Figure 6 It is Figure 3 the enlarged schematic diagram of A in the figure.

[0025] In the figure: 1, upper support frame; 101, lower support frame; 2, elastic seat cushion; 3, elastic back cushion; 4, push handle; 5, roller; 6, external wheel; 7, foot pedal; 8, universal wheel; 9, threaded rod; 10, push rod; 11, movable rod; 111, positioning rod; 12, U-shaped box; 13, first movable strip; 14, second movable strip; 15, inner roller; 16, groove; 17, fixed rod; 18, sliding block; 21, fixed cylinder; 22, pull rod; 23, spring; 24, clamping block; 112, placing box; 161, second groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1-6The utility model provides a multifunctional folding wheelchair, including support frame 1, the bottom of upper support frame 1 is equipped with lower support frame 101, lower support frame 101 left and right two ends rotatory connection gyro wheel 5, install elastic seat cushion 2 on upper support frame 1, install elastic back cushion 3 on the rear end of upper support frame 1, the top of upper support frame 1 is fixedly connected with push handle 4 and is equipped with two groups, be equipped with push rod 10 on upper support frame 1, be equipped with folding assembly between upper support frame 1 and lower support frame 101, the folding assembly makes upper support frame 1 go up and down on upper and lower support frame 101 through push rod 10, folding assembly still includes screw rod 9, first movable strip 13, second movable strip 14, inner gyro wheel 15, fixed rod 17, groove 16, second groove 161, sliding block 18, groove 16 is set up in the inner wall of lower support frame 101, inner gyro wheel 15 rotatory connection is in the inner wall of groove 16, fixed rod 17 is fixedly connected in the side wall of lower support frame 101, second groove 161 is set up in the side wall of upper support frame 1, sliding block 18 slidingly connects in the inner wall of second groove 161, first movable strip 13 one end swing joint is in the inner wall of lower support frame 101, first movable strip 13 other end swing joint is in the side wall of sliding block 18, second movable strip 14 one end swing joint is in the side wall of inner gyro wheel 15, second movable strip 14 other end swing joint is in the side wall of upper support frame 1, the middle part of first movable strip 13 and second movable strip 14 all rotatoryly sets up in the outer wall of fixed rod 17, screw rod 9 is screwly connected in the inner wall of upper support frame 1 and one end with the side wall contact of push rod 10, push rod 10 fixedly sets up in the side wall of sliding block 18, when the device needs to be folded and stored, unscrew screw rod 9, one end of screw rod 9 will lose the contact of sliding block 18, when push rod 10 is dialled, push rod 10 will drive sliding block 18 to slide in the inner wall of second groove 161, at this moment, sliding block 18 will drive first movable strip 13 to rotate, first movable strip 13 one end swing joint is in the inner wall of lower support frame 101, its other end swing joint is in the sliding block 18 in second groove 161, and first movable strip 13 middle part rotates around fixed rod 17, second movable strip 14 one end swing joint is in the inner gyro wheel 15 rotatory in groove 16, other end swing joint is in the side wall of upper support frame 1, and middle part rotates around fixed rod 17, simultaneously, upper support frame 1 will be driven to move downward through second movable strip 14, second movable strip 14 drives inner gyro wheel 15 to move forward in groove 16, through the cooperation of first movable strip 13, second movable strip 14, sliding block 18, inner gyro wheel 15 and fixed rod 17 etc.

[0028] Lower support frame 101 front end is equipped with footrest 7 and is equipped with two groups, realizes the placement of both feet.

[0029] The side wall of the upper support frame 1 is fixedly connected with a placing box 112; the placing box 112 of the side wall of the upper support frame 1 provides a convenient storage space for the user. The user can place commonly used items such as books, mobile phones, water cups, medicines and the like in it, which is convenient for taking at any time during wheelchair movement, without the need for additional carrying of a bag or worrying about where to place the items, thereby improving the convenience of daily use.

[0030] The outer wall of the upper support frame 1 is fixedly connected with an external wheel 6 and has a diameter smaller than that of the roller 5; when in use, the user can sit on the elastic seat cushion 2 and lean against the elastic back cushion 3, or move through the push handle 4, or move the wheelchair by rotating the external wheel 6.

[0031] The rear end of the upper support frame 1 is fixedly connected with positioning rods 111, and the back of the upper support frame 1 is provided with a U-shaped box 12; the two ends of the U-shaped box 12 are movably hinged with movable rods 11, one end of the movable rod 11 away from the U-shaped box 12 is movably sleeved on the outer wall of the positioning rod 111, the side wall of the U-shaped box 12 is fixedly connected with a fixed cylinder 21, the inner wall of the fixed cylinder 21 is movably connected with a pull rod 22, the spring 23 is fixed between the inner wall of the fixed cylinder 21 and the side wall of the pull rod 22 and movably sleeved on the outer wall of the pull rod 22, the outer ends of the pull rod 22 are fixedly connected with clamping blocks 24, and one end of the clamping block 24 away from the pull rod 22 is movably clamped on the movable rod 11 and the U-shaped box 12; when it is necessary to be stored, the pull rod 22 is pulled, the pull rod 22 slides in the fixed cylinder 21 and compresses the spring 23, so that the clamping block 24 is separated from the clamping of the movable rod 11 and the U-shaped box 12; at this time, one end of the movable rod 11 rotates 90 degrees along the inner wall of the U-shaped box 12, the other end of the movable rod 11 rotates along the positioning rod 111, and the upper support frame 1 descends in the lower support frame 101.

[0032] Working principle

[0033] When it is needed to be stored, pull the pull rod 22, the pull rod 22 slides in the fixed cylinder 21 and compresses the spring 23, makes the clamping block 24 separate from the clamping of the movable rod 11 and the U-shaped box 12;At this time, the movable rod 11 one end rotates 90 degrees along the inner wall of the U-shaped box 12, the other end of the movable rod 11 rotates along the positioning rod 111, unscrews the threaded rod 9, one end of the threaded rod 9 will lose the contact with the sliding block 18, when the push rod 10 is pushed, the push rod 10 will drive the sliding block 18 to slide in the second groove 161, at this time, the sliding block 18 will drive the first movable strip 13 to rotate, one end of the first movable strip 13 is hinged with the inner wall of the lower support frame 101, the other end is hinged with the sliding block 18 sliding in the second groove 161, and the middle part of the first movable strip 13 rotates around the fixed rod 17;The second movable strip 14 one end is hinged with the inner roller 15 rotating in the groove 16, the other end is hinged with the side wall of the upper support frame 1, and the middle part rotates around the fixed rod 17;At the same time, the upper support frame 1 will drive downward movement through the second movable strip 14, the second movable strip 14 drives the inner roller 15 to move forward in the groove 16, 1 in the upper support frame 1 is lowered in the lower support frame 101, thereby completing folding.

[0034] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multifunctional folding wheelchair, comprising an upper support frame (1), the bottom of the upper support frame (1) is provided with a lower support frame (101), the left and right ends of the lower support frame (101) are rotationally connected with rollers (5), an elastic seat cushion (2) is installed on the upper support frame (1), an elastic back cushion (3) is installed on the rear end of the upper support frame (1), and the top of the upper support frame (1) is fixedly connected with a push handle (4) and is provided with two groups, characterized in that, Also includes: The upper support frame (1) is provided with a push rod (10), and the upper support frame (1) and the lower support frame (101) are provided with a folding assembly. The folding assembly makes the upper support frame (1) rise and fall on the upper and lower support frames (101) through the push rod (10). The folding assembly further includes a threaded rod (9), a first movable strip (13), a second movable strip (14), an inner roller (15), a fixed rod (17), a groove (16), a second groove (161), a sliding block (18), the groove (16) is opened in the inner wall of the lower support frame (101), the inner roller (15) is rotatably connected to the inner wall of the groove (16), the fixed rod (17) is fixedly connected to the side wall of the lower support frame (101), the second groove (161) is opened in the side wall of the upper support frame (1), the sliding block (18) is slidably connected to the inner wall of the second groove (161), one end of the first movable strip (13) is movably hinged to the inner wall of the lower support frame (101), the other end of the first movable strip (13) is movably hinged to the side wall of the sliding block (18), one end of the second movable strip (14) is movably hinged to the side wall of the inner roller (15), the other end of the second movable strip (14) is movably hinged to the side wall of the upper support frame (1), the middle portions of the first movable strip (13) and the second movable strip (14) are rotatably sleeved on the outer wall of the fixed rod (17), the threaded rod (9) is threadedly connected to the inner wall of the upper support frame (1) and one end thereof is in contact with the side wall of the push rod (10), and the push rod (10) is fixedly sleeved on the side wall of the sliding block (18).

2. The multi-functional folding wheelchair of claim 1, wherein: The lower support frame (101) is provided with two groups of foot pedals (7) at the front end.

3. The multi-functional folding wheelchair of claim 1, wherein: The side wall of the upper support frame (1) is fixedly connected with a placing box (112).

4. The multi-functional folding wheelchair of claim 1, wherein: The outer wall of the upper support frame (1) is fixedly connected with an outer wheel (6), and the diameter of the outer wheel (6) is smaller than that of the roller (5).

5. The multi-functional folding wheelchair of claim 1, wherein: The two sides of the rear end of the upper support frame (1) are fixedly connected with positioning rods (111), and the back of the upper support frame (1) is provided with a U-shaped box (12).

6. The multi-functional folding wheelchair of claim 5, wherein: The two ends of the U-shaped box (12) are movably hinged with movable rods (11), one end of the movable rod (11) away from the U-shaped box (12) is movably sleeved on the outer wall of the positioning rod (111), the side wall of the U-shaped box (12) is fixedly connected with a fixed cylinder (21), the inner wall of the fixed cylinder (21) is slidably connected with a pull rod (22), the spring (23) is fixedly arranged between the inner wall of the fixed cylinder (21) and the side wall of the pull rod (22) and movably sleeved on the outer wall of the pull rod (22), the outer ends of the pull rod (22) are fixedly connected with clamping blocks (24), and one end of the clamping block (24) away from the pull rod (22) is movably connected to the movable rod (11) and the U-shaped box (12).

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