Pedal structure for wheelchair

Abstract

The utility model belongs to the technical field of wheelchair accessories, and discloses a wheelchair pedal structure which comprises a plurality of fixing holes formed in the two sides of the bottom end of an installation rod, a fixing cylinder is arranged on the outer side of the installation rod in a sleeved mode, the section of the fixing cylinder is in a T shape, the fixing cylinder is provided with a through hole, and first fixing screws are installed in the fixing holes and the through hole. A rotating cylinder is rotatably mounted on the fixed cylinder, a sliding groove is formed in the rotating cylinder, a mounting strip is mounted in the sliding groove, a plurality of positioning holes are uniformly formed in the mounting strip, second fixing screws are mounted between the positioning holes and the rotating cylinder, a mounting block is mounted on the mounting strip, and two locking screws are mounted between the mounting block and the mounting strip. A pedal is installed on the installation block in a hinged mode, regular polygon through holes are formed in the installation block and the pedal, regular polygon rotating shafts are installed in the regular polygon through holes in an inserted mode, the regular polygon rotating shafts and the installation block are provided with pin holes corresponding to each other in position, and plug pins are installed in the pin holes.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheelchair accessories, and particularly relates to a footrest structure for a wheelchair. Background Art

[0002] A wheelchair is a chair equipped with wheels to help replace walking, and is an important mobile tool for the wounded, sick, and disabled for home rehabilitation, turnover transportation, medical treatment, and outdoor activities. The wheelchair not only meets the transportation needs of the physically disabled and the mobility-impaired, but more importantly, it facilitates the family members to move and take care of the patients, enabling the patients to exercise their bodies and participate in social activities with the help of the wheelchair.

[0003] Common wheelchair footrests cannot be adjusted in inclination and rotated. When not in use, it is inconvenient to disassemble and store the footrests. The disassembly and assembly are time-consuming and laborious, which will bring great inconvenience to the users. Summary of the Utility Model

[0004] Aiming at the problems raised in the above background art, the purpose of the present utility model is to provide a footrest structure for a wheelchair.

[0005] To achieve the above technical purpose, the technical solution adopted by the present utility model is as follows:

[0006] A footrest structure for a wheelchair includes a plurality of fixing holes provided on both sides of the bottom end of an installation rod. A fixing cylinder is sleeved outside the installation rod. The cross-section of the fixing cylinder is T-shaped. The fixing cylinder is provided with a through hole. The fixing hole and the through hole are installed with a first fixing screw. A rotating cylinder is rotatably installed on the fixing cylinder. A sliding groove is integrally installed on the outside of the rotating cylinder. An installation strip is slidably installed in the sliding groove. The installation strip is evenly provided with a plurality of positioning holes. A second fixing screw is installed between the positioning hole and the rotating cylinder. An installation block is installed on the installation strip. Two locking screws are installed between the installation block and the installation strip. A pedal is hingedly installed on the installation block. The installation block and the pedal are both provided with regular polygon through holes. A regular polygon rotating shaft is inserted into the regular polygon through holes. The regular polygon rotating shaft and the installation block are provided with pin holes corresponding to each other in position. A pin is installed in the pin hole.

[0007] Further limited, the installation rod is symmetrically provided with grooves. The fixing holes are located in the grooves. The fixing cylinder is integrally connected with a convex block whose specification and size match the grooves. With such a design, the angle fixing effect of the fixing cylinder is better.

[0008] Further limited, the pedal is provided with friction lines. With such a design, it has anti-slip function and better footrest experience.

[0009] Further limited, the positioning holes are counterbored holes. With such a design, it will not interfere with the sliding of the installation block.

[0010] Further defined, both the first fixing screw and the second fixing screw are threadedly connected with nuts, and the nuts are symmetrically provided with screwing plates. Such a design facilitates the rotation of the nuts without using tools, thereby realizing adjustment.

[0011] Beneficial effects of adopting the utility model:

[0012] With the structural design of the utility model, the inclination of the pedal can be changed after removing the regular polygon rotating shaft. After the inclination is changed, inserting the regular polygon rotating shaft and then inserting a pin into the pin hole can fix the regular polygon rotating shaft, thereby realizing the fixation of the pedal and achieving the purpose of changing the inclination.

[0013] With the structural design of the utility model, since the fixed cylinder and the rotating cylinder are rotatably connected, the pedal can be rotated at any angle, ensuring the comfort of use.

[0014] With the structural design of the utility model, the height of the fixed cylinder can be adjusted through the first fixing screw, thereby adapting to users of different heights. Description of the drawings

[0015] The utility model can be further illustrated by the non-limiting embodiments given in the drawings;

[0016] Figure 1 is a schematic structural view of an embodiment of a footrest structure for a wheelchair of the utility model Figure I ;

[0017] Figure 2 is a schematic structural view of an embodiment of a footrest structure for a wheelchair of the utility model Figure II ;

[0018] Figure 3 is an exploded structural view of an embodiment of a footrest structure for a wheelchair of the utility model;

[0019] Figure 4 is a sectional structural view of an embodiment of a footrest structure for a wheelchair of the utility model;

[0020] The main component symbols are explained as follows:

[0021] Mounting rod 1; fixing hole 2; fixed cylinder 3; through hole 4; first fixing screw 5; rotating cylinder 6; sliding groove 7; mounting strip 8; positioning hole 9; second fixing screw 10; mounting block 11; locking screw 12; pedal 13; regular polygon through hole 14; regular polygon rotating shaft 15; pin hole 16; pin 17; groove 18; convex block 19; nut 20; screwing plate 21. Detailed implementation manners

[0022] To enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] As Figures 1 to 4 shown, a pedal structure for a wheelchair of the present utility model includes a plurality of fixing holes 2 provided on both sides of the bottom end of the mounting rod 1. A fixing cylinder 3 is sleeved outside the mounting rod 1. The cross-section of the fixing cylinder 3 is T-shaped. The fixing cylinder 3 is provided with a through hole 4. A first fixing screw 5 is installed in the fixing hole 2 and the through hole 4. A rotating cylinder 6 is rotatably installed on the fixing cylinder 3. A sliding groove 7 is integrally installed on the outside of the rotating cylinder 6. An installation strip 8 is slidably installed in the sliding groove 7. A plurality of positioning holes 9 are evenly provided on the installation strip 8. A second fixing screw 10 is installed between the positioning hole 9 and the rotating cylinder 6. An installation block 11 is installed on the installation strip 8. Two locking screws 12 are installed between the installation block 11 and the installation strip 8. A pedal 13 is hingedly installed on the installation block 11. Regular polygon through holes 14 are provided on both the installation block 11 and the pedal 13. A regular polygon rotating shaft 15 is inserted and installed in the regular polygon through holes 14. Pin holes 16 corresponding to each other in position are provided between the regular polygon rotating shaft 15 and the installation block 11. A pin 17 is installed in the pin holes 16.

[0024] In this embodiment, when using a pedal structure for a wheelchair, the fixing cylinder 3 is installed on the mounting rod 1 through the first fixing screw 5 in cooperation with the fixing hole 2 and the through hole 4. Since the positions of the fixing holes 2 are different, the corresponding positions of the fixing cylinder 3 will also change. Therefore, the height position of the fixing cylinder 3 can be adjusted, and then the height position of the pedal 13 can be adjusted, so as to adapt to people of different heights for use.

[0025] The way of rotatably installing the rotating cylinder 6 and the fixing cylinder 3 enables the rotating cylinder 6 to rotate around the axis of the mounting rod 1, so the angle of the pedal 13 can be changed.

[0026] Furthermore, with the cooperation of the first fixing screw 10 and the positioning hole 9, the installation position of the installation strip 8 in the sliding groove 7 can also be adjusted, that is, the purpose of adjusting the front and rear positions of the pedal 13 can be achieved. Moreover, with the cooperation of the locking screw 12 and the positioning hole 9, the position of the installation block 11 in the installation strip 8 can also be adjusted, thereby expanding the adjustment range.

[0027] Still further, the inclination control of the pedal 13 is realized by the cooperation of the regular polygon rotating shaft 15 and the regular polygon through holes 14, and the angle fixation of the regular polygon rotating shaft 15 is realized by the cooperation of the pin 17 and the pin holes 16. Therefore, after the regular polygon rotating shaft 15 is taken out, the pedal 13 is in a completely detached state, which is conducive to disassembly, replacement and repair. Moreover, only when the pedal 13 is tilted to the required angle, and then the angle fixation of the regular polygon rotating shaft 15 is realized by the cooperation of the regular polygon rotating shaft 15 and the regular polygon through holes 14, and the angle fixation of the regular polygon rotating shaft 15 is realized by the cooperation of the pin 17 and the pin holes 16, the inclination fixation of the pedal 13 can be completed.

[0028] Preferably, the mounting rod 1 is symmetrically provided with grooves 18, the fixing holes 2 are located in the grooves 18, and the fixing cylinder 3 is integrally connected with bumps 19 whose specifications and dimensions match the grooves 18. With such a design, the angle fixing effect of the fixing cylinder 3 is better. In fact, the structure for strengthening the angle fixing of the fixing cylinder 3 can also be considered according to specific situations.

[0029] Preferably, the pedal 13 is provided with friction lines. With such a design, it has anti-slip properties and a better foot pedal experience. In fact, the pattern structure of the friction lines can also be considered according to specific situations.

[0030] Preferably, the positioning hole 9 is a countersunk hole. With such a design, it will not interfere with the sliding of the mounting block 11. In fact, the pattern structure of the positioning hole 9 can also be considered according to specific situations.

[0031] Preferably, both the first fixing screw 5 and the second fixing screw 10 are threadedly connected with nuts 20, and the nuts 20 are symmetrically provided with wrench plates 21. With such a design, it is beneficial to rotate the nuts 20 without using tools, thereby achieving adjustment. In fact, the structure for facilitating the removal of the first fixing screw 5 and the second fixing screw 10 can also be considered according to specific situations.

[0032] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A wheelchair footrest structure, comprising a plurality of fixing holes (2) arranged on both sides of the bottom end of a mounting rod (1), characterized in that: A fixing cylinder (3) is sleeved on the outside of the mounting rod (1), the fixing cylinder (3) has a T-shaped cross section, the fixing cylinder (3) is provided with a through hole (4), the fixing hole (2) and the through hole (4) are provided with a first fixing screw (5), the fixing cylinder (3) is rotatably provided with a rotating cylinder (6), a sliding groove (7) is integrally provided on the outside of the rotating cylinder (6), a mounting strip (8) is slidably provided on the sliding groove (7), the mounting strip (8) is evenly provided with a plurality of positioning holes (9), a second fixing screw (10) is provided between the positioning hole (9) and the rotating cylinder (6), The mounting bar (8) is provided with a mounting block (11), two locking screws (12) are provided between the mounting block (11) and the mounting bar (8), a pedal (13) is hingedly provided on the mounting block (11), both the mounting block (11) and the pedal (13) are provided with a regular polygon through hole (14), a regular polygon rotating shaft (15) is insertedly provided in the regular polygon through hole (14), the regular polygon rotating shaft (15) and the mounting block (11) are provided with pin holes (16) whose positions correspond to each other, and a latch (17) is provided in the pin hole (16).

2. A wheelchair footrest structure according to claim 1, characterized in that: The mounting rod (1) is symmetrically provided with a groove (18), the fixing hole (2) is located in the groove (18), and the fixing tube (3) is integrally connected with a protrusion (19) whose specification and size match the groove (18).

3. A wheelchair footrest structure according to claim 2, characterized in that: The pedal (13) is provided with friction patterns.

4. A wheelchair footrest structure according to claim 3, characterized in that: The positioning hole (9) is a countersunk hole.

5. A wheelchair footrest structure according to claim 4, characterized in that: The first fixing screw (5) and the second fixing screw (10) are both threadedly connected with a nut (20), and the nut (20) is symmetrically provided with a screwing plate (21).

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