Wheelchair with spare wheels

Abstract

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair with spare wheels, which comprises a main frame. The utility model relates to a novel electric bicycle which comprises a main frame body, a right-angled U-shaped pedal frame, two special-shaped connecting pipes, a supporting plate, a square groove, a standby universal wheel, a connecting block, a rotating shaft, a fixing block, a long bolt, an upper connecting plate and a lower connecting plate, the right-angled U-shaped pedal frame is arranged at the front end of the main frame body, and the two special-shaped connecting pipes are symmetrically arranged in the middles of the left end and the right end of the rear side of the right-angled U-shaped pedal frame; a square groove is formed in one end, far away from the special-shaped connecting pipe, of the front side of the supporting plate; the long bolt in threaded connection with the upper connecting plate is taken down through an external wrench, then the standby universal wheel is pushed to move downwards, at the moment, the connecting block rotates around the rotating shaft until the standby universal wheel is located below the supporting plate, and then the long bolt penetrates through the fixing block and then is in threaded connection with the lower connecting plate. In this way, the position of the standby universal wheel is fixed, and the function of replacing the standby wheel is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheelchair technical field especially the wheelchair with spare wheel. BACKGROUND

[0002] Wheelchair includes chair frame structure, and the person who walks inconveniently sits on wheelchair and only solves the problem of walking difficulty, moves through the wheelchair carrying people, and the front universal wheel of the wheelchair may be damaged due to various sudden reasons in daily use, which will cause the movement first, so the front universal wheel needs to be repaired or replaced.

[0003] The common wheelchair only contains the carrying function, can carry the patient to move, but lacks the function of replaceable spare wheel, cannot guarantee the normal movement of the wheelchair when the main universal wheel is damaged, and the front universal wheel of the wheelchair may be damaged due to various sudden reasons in daily use, which affects the normal movement of the wheelchair.

[0004] Therefore, aiming at the above-mentioned problem that the wheelchair lacks the function of replaceable spare wheel, a wheelchair with spare wheel can be designed, the long bolt threaded with the upper connecting plate is taken off by external wrench, then the spare universal wheel is pushed to move downward, at this time the connecting block rotates around the rotating shaft until the spare universal wheel is located below the supporting plate, then the long bolt is threaded with the lower connecting plate after penetrating the fixing block, so as to fix the position of the spare universal wheel, realizing the function of replaceable spare wheel. SUMMARY

[0005] In order to overcome the problem that the common wheelchair lacks the function of replaceable spare wheel, cannot guarantee the normal movement of the wheelchair when the main universal wheel is damaged, and the front universal wheel of the wheelchair may be damaged due to various sudden reasons in daily use, which affects the normal movement of the wheelchair.

[0006] The utility model discloses a wheelchair with spare wheel, including main frame body, still including the footrest frame, the special-shaped connecting pipe, the support plate, the square groove, the spare universal wheel, the connecting block, the pivot, the fixed block, the long bolt, the upper connecting plate and the lower connecting plate, the front end of main frame body is provided with the footrest frame, the middle symmetry of the left and right sides of footrest frame rear side two ends is provided with two special-shaped connecting pipes, the one end away from footrest frame of special-shaped connecting pipe is connected with support plate, the one end away from special-shaped connecting pipe of support plate front side is provided with square groove, the position of spare universal wheel is provided with the square groove in the inside of the one end away from special-shaped connecting pipe of support plate top, the bottom of spare universal wheel is provided with connecting block, and the bottom end of connecting block inserts the inside of square groove, and the position of connecting block is provided with pivot in the inside of square groove, and pivot is rotatably connected with connecting block, and the top end symmetry of connecting block left and right sides is provided with two fixed blocks, and the long bolt is screw connected with upper connecting plate in the center of fixed block, and the position of spare universal wheel is fixed by the long bolt screw connection with lower connecting plate after the long bolt is taken off with upper connecting plate through external wrench, then push spare universal wheel and move down, connecting block rotates around pivot at this moment, until spare universal wheel is located below support plate, then long bolt is screwed with lower connecting plate after the long bolt is inserted fixed block, and the position of spare universal wheel is fixed, and the function of replaceable spare wheel is realized, so as to solve the common wheelchair, only contains the function of carrying people, can carry patient and moves, but lacks the function of replaceable spare wheel, cannot guarantee the normal movement of wheelchair when main universal wheel is damaged, and the front side universal wheel can be damaged in the daily use of wheelchair, which can affect the normal movement of wheelchair.

[0007] Preferably, the long bolt screw connected with the upper connecting plate is taken off through an external wrench, then the spare universal wheel is pushed and moved downward, at this time, the connecting block rotates around the pivot, until the spare universal wheel is located below the support plate, then the long bolt is screwed with the lower connecting plate after the long bolt is inserted through the fixed block, thereby fixing the position of the spare universal wheel, realizing the function of replaceable spare wheel, so as to solve the common wheelchair, only containing the function of carrying people, can carry patient and moves, but lacks the function of replaceable spare wheel, cannot guarantee the normal movement of wheelchair when the main universal wheel is damaged, and the front side universal wheel can be damaged in the daily use of wheelchair, which can affect the normal movement of wheelchair.

[0008] Preferably, the bottom of the support plate near the side of the special-shaped connecting pipe is provided with a mounting block, and the bottom of the mounting block is provided with a main universal wheel.

[0009] Preferably, a footrest is fixed by a screw at the middle of the lower side of the inside of the footrest frame, and the top of the main frame body is provided with a seat plate.

[0010] Preferably, two handrails are symmetrically arranged on the left and right sides of the top of the main frame body, and two handlebars are symmetrically arranged on the left and right sides of the rear end of the main frame body.

[0011] Preferably, a backrest is fixed by a screw on the front side of the two handlebars, and the backrest is connected to the rear end of the two handrails by a screw.

[0012] Preferably, two large rear wheels are rotatably connected to the left and right ends of the rear side of the bottom of the main frame body.

[0013] Preferably, a ring-shaped push handle is arranged on the side of the large rear wheel away from the main frame body.

[0014] The utility model discloses the beneficial effect of:

[0015] 1, by the external wrench with the long bolt of upper connecting plate threaded connection is taken down, then push spare universal wheel and move down, at this moment the connecting block rotates around the pivot, until spare universal wheel is located below the support plate, then long bolt is threaded connection after the fixed block with lower connecting plate, and this opens the position of spare universal wheel and fixes, realizes the function of replaceable spare wheel, to solve the common wheelchair, only contains the function of carrying people, can carry the patient and moves, but lack the function of replaceable spare wheel, can not guarantee the normal movement of wheelchair when main universal wheel is damaged, easy to appear the front universal wheel of wheelchair in the daily use and can be damaged because of various sudden reasons, influence the normal movement of wheelchair problem. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The whole structure schematic diagram of wheelchair with spare wheel of the utility model is shown.

[0017] Figure 2 The main frame body structure schematic diagram of wheelchair with spare wheel of the utility model is shown.

[0018] Figure 3 The spare wheel assembly front view structure schematic diagram of wheelchair with spare wheel of the utility model is shown.

[0019] Figure 4 The spare wheel assembly bottom view structure schematic diagram of wheelchair with spare wheel of the utility model is shown.

[0020] Figure 5 The spare universal wheel structure schematic diagram of wheelchair with spare wheel of the utility model is shown.

[0021] Mark explanation: 1, main frame body;2, the footrest frame of square;3, the special-shaped connecting pipe;4, support plate;5, square groove;6, spare universal wheel;7, connecting block;8, pivot;9, fixed block;10, long bolt;11, upper connecting plate;12, lower connecting plate;13, mounting block;14, main universal wheel;15, footboard;16, seat plate;17, handrail plate;18, big rear wheel;19, annular push hand;20, handlebar;21, backrest plate. DETAILED DESCRIPTION

[0022] The utility model will be further explained in connection with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides a kind of embodiment: wheelchair with spare wheel, including main frame body 1;Still including U-shaped footrest frame 2, profiled connecting pipe 3, support plate 4, square groove 5, spare universal wheel 6, connecting block 7, pivot 8, fixed block 9, long bolt 10, upper connecting plate 11 and lower connecting plate 12, the front end of main frame body 1 is provided with U-shaped footrest frame 2, the middle symmetry of the left and right ends of U-shaped footrest frame 2 rear side is provided with two profiled connecting pipes 3, profiled connecting pipe 3 is connected with support plate 4 away from U-shaped footrest frame 2 one end, square groove 5 is opened in the end of support plate 4 front side away from profiled connecting pipe 3, spare universal wheel 6 is provided at the position corresponding square groove 5 in the side of support plate 4 top away from profiled connecting pipe 3, the bottom of spare universal wheel 6 is provided with connecting block 7, the bottom end of connecting block 7 is inserted into the inside of square groove 5, the position corresponding connecting block 7 in the inside of square groove 5 is provided with pivot 8, pivot 8 is rotatably connected with connecting block 7, the top end of the left and right sides of connecting block 7 is symmetrically provided with two fixed blocks 9, long bolt 10 is screw-connected in the center of fixed block 9, upper connecting plate 11 and lower connecting plate 12 are respectively provided at the position corresponding fixed block 9 in the side of support plate 4 top and bottom away from profiled connecting pipe 3, the rear end of long bolt 10 is screw-connected with upper connecting plate 11, long bolt 10 screw-connected with upper connecting plate 11 is taken down by external wrench, then spare universal wheel 6 is pushed and moved downward, connecting block 7 rotates around pivot 8 at this time, until spare universal wheel 6 is located below support plate 4, then long bolt 10 is screw-connected with lower connecting plate 12 after penetrating fixed block 9, to fix the position of spare universal wheel 6, realize the function of replaceable spare wheel, to solve the common wheelchair, only include the function of carrying people, can carry patient and move, but lack the function of replaceable spare wheel, cannot guarantee the normal movement of wheelchair when main universal wheel 14 is damaged, prone to the problem that front universal wheel can be damaged in the daily use of wheelchair due to various sudden reasons, affect normal movement of wheelchair.

[0024] Please refer to Figures 2-5 In the embodiment, the front side of the two handle bars 20 is fixed with a backrest plate 21 by screws, the rear end of the two armrest plates 17 is connected with the backrest plate 21 by screws, the left and right ends of the rear side of the bottom of the main frame body 1 are symmetrically rotatably connected with two large rear wheels 18, the side away from the main frame body 1 of the large rear wheel 18 is provided with an annular push handle 19, the patient sits on the seat plate 16, puts his feet on the footrest 15, and then rotates the large rear wheel 18 by pushing the annular push handle 19, and moves the wheelchair by the rotating large rear wheel 18, at this time, the main universal wheel 14 also rotates by friction with the ground.

[0025] Please refer to Figures 1-5In this embodiment, the bottom of the support plate 4 is provided with a mounting block 13 near one side of the profiled connecting pipe 3, the bottom of the mounting block 13 is provided with a main universal wheel 14, the middle of the lower side of the inside of the T-shaped foot pedal frame 2 is fixed with a foot pedal 15 through a screw, the top of the main frame body 1 is provided with a seat plate 16, the left and right sides of the top of the main frame body 1 are symmetrically provided with two handrails 17, and the left and right sides of the rear end of the main frame body 1 are symmetrically provided with two handlebars 20. When the main universal wheel 14 is damaged and cannot rotate, the long bolt 10 threaded with the upper connecting plate 11 is removed through an external wrench, and then the spare universal wheel 6 is pushed to move downward. At this time, the connecting block 7 rotates around the rotating shaft 8 until the spare universal wheel 6 is located below the support plate 4. Then the long bolt 10 is threaded with the lower connecting plate 12 after penetrating the fixing block 9, so as to fix the position of the spare universal wheel 6. In this way, the spare universal wheel 6 can replace the main universal wheel 14 to contact the ground, realizing the function of replaceable spare wheel, preventing the front universal wheel from being damaged due to various sudden reasons in the daily use of the wheelchair, and affecting the normal movement of the wheelchair.

[0026] When working, the patient sits on the seat plate 16, puts his feet on the foot pedal 15, and then pushes the large rear wheel 18 to rotate through the annular push hand 19. The rotating large rear wheel 18 drives the wheelchair to move. At this time, the main universal wheel 14 also rotates through friction with the ground. When the main universal wheel 14 is damaged and cannot rotate, the long bolt 10 threaded with the upper connecting plate 11 is removed through an external wrench, and then the spare universal wheel 6 is pushed to move downward. At this time, the connecting block 7 rotates around the rotating shaft 8 until the spare universal wheel 6 is located below the support plate 4. Then the long bolt 10 is threaded with the lower connecting plate 12 after penetrating the fixing block 9, so as to fix the position of the spare universal wheel 6. In this way, the spare universal wheel 6 can replace the main universal wheel 14 to contact the ground, realizing the function of replaceable spare wheel, preventing the front universal wheel from being damaged due to various sudden reasons in the daily use of the wheelchair, and affecting the normal movement of the wheelchair.

[0027] Through the above steps, the long bolt 10 threaded with the upper connecting plate 11 is removed through an external wrench, and then the spare universal wheel 6 is pushed to move downward. At this time, the connecting block 7 rotates around the rotating shaft 8 until the spare universal wheel 6 is located below the support plate 4. Then the long bolt 10 is threaded with the lower connecting plate 12 after penetrating the fixing block 9, so as to fix the position of the spare universal wheel 6. In this way, the spare universal wheel 6 can replace the main universal wheel 14 to contact the ground, realizing the function of replaceable spare wheel, preventing the front universal wheel from being damaged due to various sudden reasons in the daily use of the wheelchair, and affecting the normal movement of the wheelchair.

Claims

1. A wheelchair with a spare wheel, comprising a main frame (1); characterized in that: Also include the foot pedal frame (2), special-shaped connecting pipe (3), support plate (4), square groove (5), spare universal wheel (6), connecting block (7), pivot (8), fixed block (9), long bolt (10), upper connecting plate (11) and lower connecting plate (12), the front end of the main frame (1) is provided with foot pedal frame (2), the foot pedal frame (2) is provided with two special-shaped connecting pipes (3) in the middle of the left and right ends of the rear side, the special-shaped connecting pipe (3) is connected with the support plate (4) away from the foot pedal frame (2), the support plate (4) is provided with square groove (5) away from the special-shaped connecting pipe (3) on the front side, the support plate (4) is provided with spare universal wheel (6) on the side away from the special-shaped connecting pipe (3) corresponding to the position of square groove (5) on the top, the bottom of the spare universal wheel (6) is provided with connecting block (7), the bottom end of the connecting block (7) is inserted into the inside of the square groove (5), the inside of the square groove (5) is provided with pivot (8) corresponding to the position of the connecting block (7), the pivot (8) is rotatably connected with the connecting block (7), the top of the left and right sides of the connecting block (7) is symmetrically provided with two fixed blocks (9), the center of the fixed block (9) is threadedly connected with the long bolt (10), the top and bottom of the support plate (4) are provided with upper connecting plate (11) and lower connecting plate (12) respectively on the side away from the special-shaped connecting pipe (3) corresponding to the position of the fixed block (9), the rear end of the long bolt (10) is threadedly connected with the upper connecting plate (11).

2. The wheelchair with a spare wheel according to claim 1, characterized in that: The bottom of the support plate (4) is provided with mounting block (13) on the side close to the special-shaped connecting pipe (3).

3. The wheelchair with a spare wheel according to claim 1, characterized in that: The inside of the foot pedal frame (2) is fixed with foot pedal (15) through screw in the middle of the lower side, the top of the main frame (1) is provided with seat plate (16).

4. The wheelchair with a backup wheel according to claim 1, characterized in that: The left and right sides of the top of the main frame (1) are symmetrically provided with two handrails (17), the left and right sides of the rear end of the main frame (1) are symmetrically provided with two handlebars (20).

5. The wheelchair with a spare wheel according to claim 4, characterized in that: The front side of the two handlebars (20) is fixed with backrest plate (21) through screw, the rear end of the two handrails (17) is connected with backrest plate (21) through screw.

6. The wheelchair with a backup wheel according to claim 1, characterized in that: The bottom of the main frame (1) is rotatably connected with two large rear wheels (18) on the left and right sides of the rear side.

7. The wheelchair with a spare wheel according to claim 6, characterized in that: The side away from the main frame (1) of the large rear wheel (18) is provided with annular push hand (19).

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