CN213346411U

CN213346411U - Wheelchair pedal with angle fixing function

Info

Publication number: CN213346411U
Application number: CN202021491132.6U
Authority: CN
Inventors: 杨欢丽
Original assignee: Dongguan Jingwang Hardware Plastic Cement Co ltd
Current assignee: Dongguan Jingwang Hardware Plastic Cement Co ltd
Priority date: 2020-07-26
Filing date: 2020-07-26
Publication date: 2021-06-04
Anticipated expiration: 2030-07-26

Abstract

The utility model discloses a wheelchair is with pedal with fixed angle function, including backplate, connecting rod and pull rod, be fixed with the motor on the backplate, and the output shaft end of motor is fixed with the driving gear to driving gear and driven gear interconnect, driven gear fixes on the lead screw simultaneously, first gear is fixed on the second rotation axis, pull rod end and first gear interconnect, and be fixed with the fixed plate on the pull rod to be fixed with the spring on the fixed plate, the spring end is fixed on the running-board simultaneously, second rotation axis bearing fixes on the running-board. This wheelchair with fixed angle function is with pedal adopts motor and lead screw, cooperates the effect between a plurality of axles and the pole to realize the adjustment to the movable support angle, and then realize the angular adjustment to the running-board, and the running-board adopts can dismantle extending structure, conveniently adapts to the difference of distance size between child and the adult both feet, increases the practicality of wheelchair.

Description

Wheelchair pedal with angle fixing function

Technical Field

The utility model relates to a wheelchair technical field specifically is a wheelchair is with pedal of fixed angle function.

Background

The wheelchair is an important tool for rehabilitation of limb disabled persons and traveling of persons with difficulty in movement, is mainly divided into an electric wheelchair and a manual wheelchair according to classification, and is suitable for meeting the requirements of different crowds by adding a suitable structure on the existing wheelchair for special persons.

The wheelchair is taken as the action tool and the rehabilitation tool of the personnel with inconvenient actions, not only can the wheelchair be moved, more importantly, the wheelchair can be used for simple rehabilitation training for the disabled, and the wheelchair can cause insufficient blood supply of lower limbs after sitting for a long time, so the lower limbs are moved frequently, the wheelchair can play a role in simple exercise, secondary injury to the human body caused by the inconvenient sitting posture for a long time can be avoided, the wheelchair at the current stage has the problems of simple structure, inconvenient angle regulation during pedaling, low adaptability and the like, and the traditional wheelchair is urgently required to be improved aiming at the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wheelchair is with pedal with fixed angle function to provide simple structure, pedal inconvenient angle regulation and the low problem of adaptability in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pedal with a fixed angle function for a wheelchair comprises a back plate, a connecting rod and a pull rod, wherein a motor is fixed on the back plate, a driving gear is fixed at the tail end of an output shaft of the motor, the driving gear is connected with a driven gear, the driven gear is fixed on a screw rod, a limiting block is fixed at the tail end of the screw rod, a movable plate is arranged on the screw rod, a fixed rod is fixed on the side edge of the movable plate, a movable rod is fixed on the fixed rod through a bearing, a first rotating shaft is fixed at the tail end of the movable rod, the first rotating shaft bearing is fixed on a first sliding block, the first sliding block is arranged in a sliding groove, the sliding groove is arranged on a movable support, the movable support is connected with a handrail support through a columnar shaft, the handrail support is fixed on the back plate, the upper end of the connecting rod is fixed on the first sliding block, and, and a gear rack rod is fixed on the second sliding block, the gear rack rod is connected with a first gear at the same time, the first gear is fixed on a second rotating shaft, the tail end of the pull rod is connected with the first gear, a fixing plate is fixed on the pull rod, a spring is fixed on the fixing plate, the tail end of the spring is fixed on the pedal, and a bearing of the second rotating shaft is fixed on the pedal.

Preferably, the driving gear is in meshed connection with the driven gear, and the diameter of the driving gear is smaller than that of the driven gear.

Preferably, the movable rod and the fixed rod form a rotating mechanism through a bearing, and the length of the movable rod is equal to the length of the thread on the screw rod.

Preferably, the movable support is in sliding connection with the connecting rod, and the length of the connecting rod is half of the length of the sliding groove.

Preferably, the second sliding block is in sliding connection with the movable support, and the second sliding block is of a T-shaped structure.

Preferably, the pull rod and the pedal form an elastic mechanism through a spring, and the pull rod is connected with the first gear in a clamping manner.

Compared with the prior art, the beneficial effects of the utility model are that: this wheelchair with fixed angle function is with pedal adopts motor and lead screw, cooperates the effect between a plurality of axles and the pole to realize the adjustment to the movable support angle, and then realize the angular adjustment to the running-board, and the running-board adopts can dismantle extending structure, conveniently adapts to the difference of distance size between child and the adult both feet, increases the practicality of wheelchair.

1. Through the motor drive, the effect between cooperation driving gear, driven gear, lead screw, fly leaf, dead lever, movable rod, first rotation axis, first slider and the spout to the realization is to the angular adjustment of movable support, makes the patient carry out the angular adjustment of running-board according to self needs.

2. Through pulling the pull rod, pull or press the running-board again, the effect of cooperation wheel ratch and first gear can be adjusted and dismantle the position of running-board, conveniently adapts to user's requirement and makes things convenient for the later stage to wash.

Drawings

FIG. 1 is a schematic view of a front view cross-section of the back plate of the present invention;

FIG. 2 is a schematic view of a top view cross-sectional structure of the back plate of the present invention;

FIG. 3 is a schematic side view of the cross-sectional structure of the foot pedal of the present invention;

fig. 4 is a schematic view of the top-view section structure of the movable plate of the present invention.

In the figure: 1. a back plate; 2. a motor; 3. a driving gear; 4. a driven gear; 5. a screw rod; 6. a limiting block; 7. a movable plate; 8. fixing the rod; 9. a movable rod; 10. a first rotating shaft; 11. a first slider; 12. a chute; 13. a movable support; 14. a handrail support; 15. a connecting rod; 16. a second slider; 17. a pinion rod; 18. a first gear; 19. a second rotation shaft; 20. a pull rod; 21. a fixing plate; 22. a spring; 23. a foot pedal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a pedal with a fixed angle function for a wheelchair comprises a back plate 1, a motor 2, a driving gear 3, a driven gear 4, a screw rod 5, a limiting block 6, a movable plate 7, a fixed rod 8, a movable rod 9, a first rotating shaft 10, a first slide block 11, a chute 12, a movable support 13, a handrail support 14, a connecting rod 15, a second slide block 16, a gear tooth rod 17, a first gear 18, a second rotating shaft 19, a pull rod 20, a fixed plate 21, a spring 22 and a pedal plate 23, wherein the back plate 1 is fixedly provided with the motor 2, the tail end of an output shaft of the motor 2 is fixedly provided with the driving gear 3, the driving gear 3 is mutually connected with the driven gear 4, the driven gear 4 is fixedly arranged on the screw rod 5, the tail end of the screw rod 5 is fixedly provided with the limiting block 6, the screw rod 5 is provided with the movable plate 7, the side edge of the movable plate 7 is fixedly, a first rotating shaft 10 is fixed at the tail end of the movable rod 9, the first rotating shaft 10 is fixed on a first sliding block 11 in a bearing mode, and the first slide block 11 is arranged in the slide groove 12, the slide groove 12 is arranged on the movable bracket 13, the movable bracket 13 is connected with the handrail bracket 14 through a columnar shaft, the handrail support 14 is fixed on the back plate 1, the upper end of the connecting rod 15 is fixed on the first slide block 11, the lower end of the connecting rod 15 is fixed on the second slide block 16, and a pinion rod 17 is fixed on the second slider 16, while the pinion rod 17 is connected with a first gear 18, the first gear 18 is fixed on a second rotating shaft 19, the end of a pull rod 20 is connected with the first gear 18, and a fixing plate 21 is fixed on the pull rod 20, and a spring 22 is fixed on the fixing plate 21, the end of the spring 22 is fixed on the pedal plate 23, and the second rotating shaft 19 is bearing-fixed on the pedal plate 23.

The driving gear 3 is connected with the driven gear 4 in a meshed mode, the diameter of the driving gear 3 is smaller than that of the driven gear 4, the screw rod 5 can stably and slowly rotate under the meshed effect of the driving gear 3 and the driven gear 4, and the power foundation for achieving angle adjustment of the movable support 13 is achieved.

The movable rod 9 and the fixed rod 8 form a rotating mechanism through a bearing, the length of the movable rod 9 is equal to the length of a thread on the screw rod 5, the movable rod 9 is convenient to support and contract, and the supporting mechanism is used for adjusting the angle of the movable support 13.

The movable support 13 is in sliding connection with the connecting rod 15, and the length of the connecting rod 15 is half of that of the sliding groove 12, so that the connecting rod 15 can drive the second sliding block 16 to move, the angle of the movable support 13 can be limited to rotate between 0-45 degrees, the position of the pedal 23 can be guaranteed to move along with the change of the angle of the movable support 13, and the leg of a patient can be better exercised.

The second sliding block 16 is connected with the movable bracket 13 in a sliding manner, and the second sliding block 16 is of a T-shaped structure, so that the pedal 23 can move stably, and the second sliding block 16 cannot be separated from the sliding groove 12.

The pull rod 20 and the pedal 23 form an elastic mechanism through the spring 22, the pull rod 20 is connected with the first gear 18 in a clamping mode, the pedal 23 is pulled, so that the distance between the pedals 23 can be adjusted conveniently, and the pedal 23 can be locked under the action of the spring 22 after being released, so that the distance between the pedals 23 is fixed.

The working principle is as follows: when the device is used, firstly, the distance between the pedals 23 is adjusted according to a patient to be used, firstly, the pull rod 20 is pulled, so that the locking action between the pull rod 20 and the first gear 18 is released, the pedals 23 are adjusted, the pull rod 20 is released after the position is adjusted, the pull rod 20 is enabled to lock the first gear 18 under the action of the spring 22, as shown in fig. 3, so that the adjustment of the distance between the pedals 23 is completed, the legs of the patient can be more comfortable, and the pedals 23 can be detached and cleaned according to the principle;

when the angle adjustment of the pedal 23 is required, the motor 2 is powered on to drive the output shaft to rotate, so as to drive the driving gear 3 to rotate, and the driving gear 4 is matched to drive the screw rod 5 to rotate, so as to realize the horizontal movement of the movable plate 7 and the fixed rod 8, so as to drive the movable rod 9 to rotate around the first slide block 11 in cooperation with the first rotating shaft 10, and to make the first slide block 11 slide in the chute 12 of the movable bracket 13, so as to make the movable bracket 13 rotate around the armrest bracket 14 through the columnar shaft, so as to realize the angle adjustment of the movable bracket 13, and the pedal 23 is connected with the movable bracket 13, so as to realize the angle adjustment of the pedal 23, as shown in fig. 1, while realizing the angle adjustment of the pedal 23, the movement of the first slide block 11 drives the connecting rod 15 to move, so as to adjust the height of the pedal 23, the leg of the patient can be bent, which is more beneficial to the exercise of the leg of the patient, and the working principle of the pedal for the wheelchair with the fixed angle function is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wheelchair is with pedal with fixed angle function, includes backplate (1), connecting rod (15) and pull rod (20), its characterized in that: the back plate (1) is fixed with a motor (2), the tail end of an output shaft of the motor (2) is fixed with a driving gear (3), the driving gear (3) is connected with a driven gear (4) mutually, the driven gear (4) is fixed on a screw rod (5), the tail end of the screw rod (5) is fixed with a limiting block (6), the screw rod (5) is provided with a movable plate (7), the side edge of the movable plate (7) is fixed with a fixed rod (8), a movable rod (9) is fixed on the fixed rod (8) in a bearing way, the tail end of the movable rod (9) is fixed with a first rotating shaft (10), the first rotating shaft (10) is fixed on a first sliding block (11) in a bearing way, the first sliding block (11) is arranged in a sliding groove (12), the sliding groove (12) is arranged on a movable support (13), the movable support (13) is connected with a handrail support (14) mutually through a columnar shaft, the armrest support (14) is fixed on the back plate (1), the upper end of the connecting rod (15) is fixed on the first sliding block (11), the lower end of the connecting rod (15) is fixed on the second sliding block (16), a gear rack (17) is fixed on the second sliding block (16), the gear rack (17) is connected with the first gear (18) at the same time, the first gear (18) is fixed on the second rotating shaft (19), the tail end of the pull rod (20) is connected with the first gear (18), a fixing plate (21) is fixed on the pull rod (20), a spring (22) is fixed on the fixing plate (21), the tail end of the spring (22) is fixed on the pedal (23), and the second rotating shaft (19) is fixed on the pedal (23) through a bearing.

2. The footrest for a wheelchair with a fixed angle function as claimed in claim 1, wherein: the driving gear (3) is in meshed connection with the driven gear (4), and the diameter of the driving gear (3) is smaller than that of the driven gear (4).

3. The footrest for a wheelchair with a fixed angle function as claimed in claim 1, wherein: the movable rod (9) and the fixed rod (8) form a rotating mechanism through a bearing, and the length of the movable rod (9) is equal to the length of the thread on the screw rod (5).

4. The footrest for a wheelchair with a fixed angle function as claimed in claim 1, wherein: the movable support (13) is in sliding connection with the connecting rod (15), and the length of the connecting rod (15) is half of that of the sliding chute (12).

5. The footrest for a wheelchair with a fixed angle function as claimed in claim 1, wherein: the second sliding block (16) is in sliding connection with the movable support (13), and the second sliding block (16) is of a T-shaped structure.

6. The footrest for a wheelchair with a fixed angle function as claimed in claim 1, wherein: the pull rod (20) and the pedal (23) form an elastic mechanism through a spring (22), and the pull rod (20) is connected with the first gear (18) in a clamping mode.