CN221712556U - Wheelchair with movable leg support - Google Patents

Abstract

The utility model provides a wheelchair with a movable leg rest, which belongs to the technical field of wheelchairs and comprises a wheelchair main body, a footrest structure is installed at the front end of the wheelchair main body which can swing up and down, the footrest structure comprises a pipe frame rotatably connected to the wheelchair main body, a legrest structure which can be operated to rotate and store is installed on the pipe frame, the footrest structure can adjust the angle of up and down swinging through the cooperation of a gear support rod, and can assist in lifting the legs in cooperation with the legrest structure, thereby providing a better user experience, and the legrest structure can semi-automatically adjust the unfolding and storage states under the cooperation of a mounting seat, a positioning groove, a positioning column and a reset spring, thereby being convenient to use. The wheelchair provided by the utility model has the advantages of simple and reasonable structure and good user experience.

Description

Wheelchair with movable leg rest

Technical Field

The utility model belongs to the technical field of wheelchairs, and in particular relates to a wheelchair with a movable leg support.

Background Art

A wheelchair is a chair with wheels that can help replace walking. It is an important means of transportation for the injured, sick, and disabled to recover at home, be transported around, see a doctor, and go out for activities. Wheelchairs not only meet the needs of the physically disabled and those with limited mobility, but more importantly, they facilitate family members to move and take care of patients, and enable patients to exercise and participate in social activities with the help of wheelchairs.

Ordinary wheelchairs are generally composed of a foldable frame, left and right side panels (skirt panels), front and rear wheels, foot pedals, left and right armrests, a seat and a backrest. The foot pedals generally cannot be raised to a state where the legs can be stretched horizontally, and there is a lack of leg rests, resulting in certain deficiencies in the user experience.

Utility Model Content

Based on the above problems existing in the prior art, the utility model provides a wheelchair with a movable leg rest, including a wheelchair body, a front end of the wheelchair body being equipped with a footrest structure which can swing up and down, the footrest structure comprising a pipe frame rotatably connected to the wheelchair body, and a leg rest structure which can be operated to rotate and store is installed on the pipe frame.

Among them, the leg support structure includes a mounting seat fixedly installed on the pipe frame, a connecting tube is rotatably installed on the mounting seat, a leg pad is fixedly installed on the connecting tube, and two positioning grooves are provided on the mounting seat, and the two positioning grooves correspond to the unfolded state and the stowed state respectively; a positioning column cooperating with the positioning groove is slidably installed on the connecting tube, a limiting bolt is also fixedly installed on the connecting tube, a return spring is installed between the positioning column and the limiting bolt, and the return spring forces the positioning column to embed into the positioning groove in a naturally extended state.

Among them, a fine-tuning frame is also installed on the connecting tube, and the fine-tuning frame includes an arc-shaped portion installed in cooperation with the connecting tube, and a strip hole is arranged on the arc-shaped portion. The fine-tuning frame is connected to the connecting tube through the cooperation of the strip hole and bolts, and mounting plates are arranged at both ends of the arc-shaped portion. The fine-tuning frame is fixedly connected to the leg pad through the cooperation of the mounting plate and bolts.

Among them, one end of the pipe frame is connected to the wheelchair body for vertical rotation, and the other end is connected to the foot pedal for rotation. A gear support rod is also rotatably installed on the pipe frame, and a plurality of gear slots are arranged on the end of the gear support rod away from the pipe frame; a gear bolt matching the gear slot is arranged on the wheelchair body, and the angle of the pipe frame relative to the wheelchair body is adjusted by the matching and clamping connection between the gear bolt and different gear slots.

The utility model has the beneficial effects:

1. The up and down angles of the footrest structure can be adjusted through the cooperation of the gear support rod, the gear slot and the gear bolt to adapt to different usage requirements. It can not only achieve a normal sitting posture, but also assist in lifting the legs, and even lift the legs to a horizontal state.

2. A leg support structure is movably installed on the pipe frame of the footrest structure, which can assist in lifting the legs and provide a better user experience. The leg support structure can be rotated to the rear of the pipe frame when not in use, making it convenient to enter and exit the wheelchair and store the wheelchair.

3. The setting of the fine-adjustment frame allows the leg pad to swing slightly, so that the leg pad can automatically make adaptive adjustments according to the leg shapes and habits of different people, thereby improving the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the three-dimensional structure of a wheelchair with a movable leg rest.

FIG. 2 is a schematic diagram of the three-dimensional structure of the pedal structure, in a raised state.

FIG. 3 is a schematic diagram of the three-dimensional structure of the pedal structure in a lowered state.

FIG. 4 is a schematic diagram of the three-dimensional structure of the leg support structure in an unfolded state.

FIG. 5 is a schematic diagram of the three-dimensional structure from another angle when the leg support structure is in an unfolded state.

FIG. 6 is a schematic diagram of the structure of the leg support structure during the storage process.

FIG. 7 is a schematic diagram of the three-dimensional structure of the leg support structure in the stowed state.

DETAILED DESCRIPTION

The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

A wheelchair with a movable leg rest as shown in Figures 1-7 includes a wheelchair body 1, a pipe frame seat 2 is fixedly installed at the front end of the wheelchair body 1, and a footrest structure is installed on the pipe frame seat 2 to swing up and down through a rotating shaft bolt. The footrest structure includes a pipe frame 3 rotatably connected to the pipe frame seat 2, one end of the pipe frame 3 is rotatably connected to the wheelchair body 1 up and down, and the other end of the pipe frame 3 is rotatably connected to the footrest, and a gear support rod 4 is also rotatably installed on the pipe frame 3, and four gear slots 5 are arranged on the end of the gear support rod 4 away from the pipe frame 3, and a gear bolt 6 matching the gear slot 5 is arranged on the wheelchair body 1, and one end of the four gear slots 5 is connected so that the gear bolt 6 can slide and switch positions between the gear slots 5 and realize switching of different gears. The angle of the pipe frame 3 relative to the wheelchair body 1 is adjusted by the matching and clamping of the gear bolt 6 and different gear slots 5, which can meet the needs of auxiliary leg lifting at multiple heights.

The pipe rack 3 is also provided with a leg support structure that can be operated and rotated for storage. The leg support structure includes a mounting seat 7 fixedly mounted on the pipe rack 3. An arc-shaped recess 8 matching the pipe rack 3 is provided on one side of the mounting seat 7. The arc-shaped recess 8 is fixed by welding after being in contact with the pipe rack 3. One end of a connecting pipe 9 is rotatably mounted on the mounting seat 7 through a rotating shaft bolt. A fine-tuning frame 10 is installed on the other end of the connecting pipe 9. The fine-tuning frame 10 includes an arc-shaped portion 11 mounted in cooperation with the connecting pipe 9. A strip hole 12 is provided on the arc-shaped portion 11. The fine-tuning frame 10 is connected to the connecting pipe 9 through the cooperation of the strip hole 12 and the bolt. Both ends of the arc-shaped portion 11 are provided with A mounting plate 13 is provided, and the fine-tuning frame 10 is fixedly installed with a leg pad 14 through the cooperation of the mounting plate 13 and the bolts; two positioning grooves 15 are provided on the mounting seat 7, and the two positioning grooves 15 are spaced 90 degrees apart and correspond to the unfolded state and the stored state respectively, as shown in Figures 1, 4 and 5, the unfolded state is that the leg pad 14 rotates to between the two side pipe frames 3, so that the leg pad 14 can be located behind or below the calf, which can provide a support for the calf; as shown in Figure 7, relative to the unfolded state, in the stored state, the leg pad 14 rotates to the rear or below the pipe frame 3, and the leg pad 14 in this state will not affect the people entering and exiting the wheelchair, and it is also convenient for packing and storage. A positioning column 16 that cooperates with the positioning groove 15 is slidably installed on the connecting pipe 9, and a limiting bolt 17 is also fixedly installed on the connecting pipe 9, and a return spring 18 is installed between the positioning column 16 and the limiting bolt 17, and the return spring 18 forces the positioning column 16 to be embedded in the positioning groove 15 in the natural extension state.

When the wheelchair provided by the utility model is used, the leg support structure is first placed in the storage state. When a person sits in the wheelchair, the positioning column 16 is pushed by hand to move the positioning column 16 in the direction of the limit bolt 17 and slide out of the positioning slot 15. At this time, the return spring 18 is compressed, and then the leg pad 14 can be manually swung to the unfolded position. Under the action of the return spring 18, the positioning column 16 will slide back into the positioning slot 15 corresponding to the unfolded state, so that the leg support structure is in the unfolded state. Similarly, when the leg support structure is to be stored, the limit bolt 17 can be pushed by hand and the leg pad 14 can be swung to the storage position.

When the pedal structure needs to be raised or lowered, the pipe frame 3 can be slightly raised first to make the gear support rod 4 active, and then the gear support rod 4 can be moved to make different gear slots 5 and gear bolts 6 cooperate to achieve adjustment between different gears, thereby adjusting the height of the pedal structure.

The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims (3)

1. A wheelchair with a movable leg rest, comprising a wheelchair body (1), the front end of the wheelchair body (1) being equipped with a footrest structure capable of swinging up and down, characterized in that the footrest structure comprises a pipe frame (3) rotatably connected to the wheelchair body (1), the pipe frame (3) being equipped with a leg rest structure that can be operated to rotate and store; the leg rest structure comprises a mounting seat (7) fixedly mounted on the pipe frame (3), a connecting pipe (9) being rotatably mounted on the mounting seat (7), and a leg pad (14) being fixedly mounted on the connecting pipe (9) The mounting seat (7) is provided with two positioning grooves (15), and the two positioning grooves (15) correspond to the unfolded state and the stored state respectively; a positioning column (16) cooperating with the positioning groove (15) is slidably mounted on the connecting tube (9), and a limiting bolt (17) is also fixedly mounted on the connecting tube (9), and a return spring (18) is installed between the positioning column (16) and the limiting bolt (17), and the return spring (18) forces the positioning column (16) to be embedded in the positioning groove (15) in the naturally extended state. 2. A wheelchair with a movable leg rest according to claim 1, characterized in that a fine-tuning frame (10) is also installed on the connecting tube (9), and the fine-tuning frame (10) includes an arc-shaped portion (11) installed in cooperation with the connecting tube (9), and a strip hole (12) is provided on the arc-shaped portion (11). The fine-tuning frame (10) is movably connected to the connecting tube (9) through the cooperation of the strip hole (12) and bolts, and mounting plates (13) are provided at both ends of the arc-shaped portion (11). The fine-tuning frame (10) is fixedly connected to the leg pad (14) through the cooperation of the mounting plate (13) and bolts. 3. A wheelchair with a movable leg rest according to claim 2, characterized in that one end of the pipe frame (3) is connected to the wheelchair body (1) for vertical rotation, and the other end is connected to the foot pedal for rotation, and a shift support rod (4) is also rotatably installed on the pipe frame (3), and a plurality of shift grooves (5) are provided on the end of the shift support rod (4) away from the pipe frame (3); a shift bolt (6) matching the shift groove (5) is provided on the wheelchair body (1), and the angle of the pipe frame (3) relative to the wheelchair body (1) is adjusted by the matching and clamping of the shift bolt (6) and different shift grooves (5).