An old-age wheelchair with automatic opening and closing footboard

Abstract

The utility model discloses an old age wheelchair of automatic opening and closing footboard belongs to old age wheelchair technical field, and its technical scheme main points include seat, the bottom fixed connection of seat has the support, the front side of support is provided with lifting assembly, and the lifting assembly includes the connecting frame, and both sides of connecting frame front side all are fixedly connected with footboard subassembly, through setting footboard subassembly, first motor drive pivot rotation, thereby can drive footboard main part around pivot rotation, and the footboard main part is conveniently opened or is put away when using, need not manual operation, has improved the convenience and comfort of use, through setting lifting assembly, can be according to the body feature of different old age user, use habit and actual use scene, the height of footboard main part is adjusted flexibly, to ensure that the user's both feet can be comfortably placed, improves the applicability and comfort of wheelchair.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair technology for the elderly, and in particular to an elderly wheelchair with automatic opening and closing foot pedals. Background Technology

[0002] As an important tool to assist the mobility of the elderly, wheelchairs are being used more and more widely in daily life. Wheelchairs can not only help the elderly with limited mobility to move independently, but also improve their quality of life and range of activities to a certain extent.

[0003] Most common wheelchair footrests on the market are fixed structures or require manual operation to open and close, which presents many inconveniences. Manually opening and closing footrests is difficult for elderly people with declining physical function and insufficient strength, making it difficult for them to operate independently and potentially causing safety hazards during use. At the same time, the height and angle of traditional footrests are usually not adjustable, making it impossible to adapt to the height, leg length, and actual usage scenarios of different elderly people. This makes it difficult for the elderly to maintain a comfortable posture when riding in a wheelchair, and prolonged use can easily lead to physical fatigue and discomfort.

[0004] Therefore, a wheelchair with automatically opening and closing foot pedals for the elderly is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an elderly wheelchair with an automatic opening and closing foot pedal, which can solve the problems of existing elderly wheelchairs where the foot pedals are mostly fixed structures or require manual operation to open and close, resulting in many inconveniences. Manually opening and closing the foot pedal is difficult for elderly people with declining physical function and insufficient strength, making it difficult to operate independently and potentially causing safety hazards during use. At the same time, the height and angle of traditional foot pedals are usually not adjustable, and cannot be adapted to the height, leg length and actual use scenarios of different elderly people, making it difficult for the elderly to maintain a comfortable posture when riding the wheelchair, and easily causing physical fatigue and discomfort after prolonged use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an elderly wheelchair with an automatic opening and closing foot pedal, including a seat, a bracket fixedly connected to the bottom of the seat, a lifting assembly provided on the front side of the bracket, the lifting assembly including a connecting frame, and foot pedal assemblies fixedly connected to both sides of the front side of the connecting frame; The pedal assembly includes a U-shaped frame, and a rotating shaft is rotatably connected inside the U-shaped frame via a bearing. The pedal body is fixedly sleeved on the surface of the rotating shaft. A first motor is fixedly connected to the rear side of the U-shaped frame, and the output end of the first motor passes through the U-shaped frame and is fixedly connected to the rotating shaft.

[0007] Preferably, the bracket has adjustment slots on both sides of its front side, with a screw rotatably connected inside the left adjustment slot and a limit rod fixedly connected inside the right adjustment slot.

[0008] Preferably, the screw has a threaded block threadedly connected to its surface, and the limiting rod has a slidably connected limiting block to its surface. The threaded block and the limiting block are respectively fixedly connected to the two sides of the rear side of the connecting frame.

[0009] Preferably, a second motor is fixedly connected to the bottom end of the screw, and the second motor is fixedly connected to the bottom of the inner wall of the left adjustment groove.

[0010] Preferably, the top of the pedal body is provided with a placement groove, and a baffle is slidably connected inside the placement groove.

[0011] Preferably, an electric push rod is fixedly connected to the bottom of the pedal body, and the telescopic end of the electric push rod passes through the pedal body and is fixedly connected to the bottom of the baffle.

[0012] Preferably, a controller is fixedly connected to the right side of the front side of the seat, and the first motor, the second motor, and the electric push rod are all electrically connected to the controller.

[0013] Preferably, the top of the pedal body is fixedly connected with an anti-slip protrusion, and the anti-slip protrusion is made of rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This application sets up a pedal assembly, and through the cooperation of a U-shaped frame, a rotating shaft, a pedal body and a first motor, it realizes the automatic opening and closing of the pedal body. The first motor drives the rotating shaft to rotate, thereby driving the pedal body to rotate around the rotating shaft, which makes it convenient to open or close the pedal body during use without manual operation, thus improving the convenience and comfort of use. 2. By setting up a lifting component, this application can flexibly adjust the height of the footrest body according to the physical characteristics, usage habits and actual usage scenarios of different elderly users, so as to ensure that the user's feet can be placed comfortably, thereby improving the applicability and comfort of the wheelchair. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the automatic opening and closing foot pedal wheelchair of the present invention; Figure 2 This utility model Figure 1 The front view; Figure 3 This is a schematic diagram of the lifting assembly of this utility model; Figure 4 This is a schematic diagram of the pedal assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the pedal body of this utility model.

[0016] In the diagram, 1. Seat; 2. Bracket; 3. Lifting assembly; 301. Connecting frame; 302. Screw; 303. Threaded block; 304. Limiting rod; 305. Limiting block; 306. Second motor; 4. Pedal assembly; 401. U-shaped frame; 402. Rotating shaft; 403. Pedal body; 404. First motor; 5. Adjustment groove; 6. Placement groove; 7. Baffle; 8. Electric push rod; 9. Controller; 10. Anti-slip protrusion. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-5 The present invention provides the following technical solution: An elderly wheelchair with an automatic opening and closing foot pedal includes a seat 1, a support 2 fixedly connected to the bottom of the seat 1, a lifting assembly 3 provided on the front side of the support 2, the lifting assembly 3 including a connecting frame 301, and foot pedal assemblies 4 fixedly connected to both sides of the front side of the connecting frame 301. The pedal assembly 4 includes a U-shaped frame 401. A rotating shaft 402 is rotatably connected inside the U-shaped frame 401 via a bearing. The pedal body 403 is fixedly sleeved on the surface of the rotating shaft 402. A first motor 404 is fixedly connected to the rear side of the U-shaped frame 401. The output end of the first motor 404 passes through the U-shaped frame 401 and is fixedly connected to the rotating shaft 402.

[0019] In this embodiment: by setting up the pedal assembly 4, the U-shaped frame 401 can provide an installation base for other components, the rotating shaft 402 serves to support the pedal body 403, and at the same time can transmit the power of the first motor 404 to the pedal body 403, causing the pedal body 403 to rotate around its axis, thereby realizing the opening and closing action of the pedal. The pedal body 403 is a platform for the elderly to place their feet, providing support for their feet. The first motor 404 can provide power for the rotation of the pedal body 403, and its output end is fixedly connected to the rotating shaft 402. By driving the rotating shaft 402 to rotate, the pedal body 403 is driven to rotate around the rotating shaft 402, thereby realizing the automatic opening and closing function of the pedal, making it convenient for the elderly to use.

[0020] Specifically, such as Figure 2 , Figure 3As shown, adjustment slots 5 are provided on both sides of the front side of the bracket 2. A screw 302 is rotatably connected inside the left adjustment slot 5, and a limit rod 304 is fixedly connected inside the right adjustment slot 5.

[0021] Specifically, such as Figure 3 As shown, the screw 302 has a threaded block 303 threadedly connected to its surface, and the limit rod 304 has a limit block 305 slidably connected to its surface. The threaded block 303 and the limit block 305 are respectively fixedly connected to the two sides of the rear side of the connecting frame 301.

[0022] Specifically, such as Figure 3 As shown, a second motor 306 is fixedly connected to the bottom end of the screw 302, and the second motor 306 is fixedly connected to the bottom of the inner wall of the left adjustment groove 5.

[0023] In this embodiment: Through the above settings, the adjusting groove 5 can provide an installation position for the screw 302 and the limiting rod 304, while limiting the movement range of the threaded block 303 and the limiting block 305, making the lifting and lowering movement of the connecting frame 301 more stable and precise. The screw 302 is threadedly connected to the threaded block 303 and rotates under the drive of the second motor 306. Through threaded transmission, the threaded block 303 can be driven to move along the axial direction of the screw 302, thereby realizing the lifting and lowering of the connecting frame 301. The limiting rod 304 can provide a sliding track for the limiting block 305, restricting the limiting block 305 to move only in its axial direction. Cooperating with the screw 302, it ensures that the connecting frame 301 will not rotate or deviate during the lifting and lowering process, thus stabilizing the position of the connecting frame 301. The second motor 306 can provide power for the rotation of the screw 302. By controlling the forward and reverse rotation and the speed of the second motor 306, the rotation direction and speed of the screw 302 can be precisely controlled, thereby realizing the adjustment of the lifting and lowering height and speed of the connecting frame 301, and realizing the automated lifting and lowering function of the pedal assembly 4.

[0024] Specifically, such as Figure 5 As shown, a placement groove 6 is provided on the top of the pedal body 403, and a baffle 7 is slidably connected inside the placement groove 6.

[0025] Specifically, such as Figure 5 As shown, an electric push rod 8 is fixedly connected to the bottom of the pedal body 403. The telescopic end of the electric push rod 8 passes through the pedal body 403 and is fixedly connected to the bottom of the baffle 7.

[0026] In this embodiment: Through the above settings, the baffle 7 can limit and fix the foot placed on top of the pedal body 403. When the wheelchair moves or when better foot fixation is needed, the baffle 7 can be driven by the electric push rod 8 to rise, forming a blocking restriction on the foot and preventing the foot from slipping or shifting due to shaking during wheelchair movement, thus improving safety and comfort. The placement slot 6 can accommodate the baffle 7, providing space for its placement and sliding. The electric push rod 8 drives the baffle 7 to slide up and down in the placement slot 6 through telescopic movement. When foot fixation is needed, the electric push rod 8 extends, pushing the baffle 7 upward; when foot fixation is not needed, the electric push rod 8 retracts, causing the baffle 7 to descend into the placement slot 6, without affecting the free placement and removal of the foot, thereby achieving precise control of the position of the baffle 7 to meet the foot fixation needs in different usage scenarios.

[0027] Specifically, such as Figure 2 As shown, a controller 9 is fixedly connected to the right side of the front side of the seat 1. The first motor 404, the second motor 306, and the electric push rod 8 are all electrically connected to the controller 9.

[0028] Specifically, such as Figure 5 As shown, the top of the pedal body 403 is fixedly connected with an anti-slip protrusion 10, and the anti-slip protrusion 10 is made of rubber.

[0029] In this embodiment: Through the above settings, the controller 9 can integrate the control functions of the first motor 404, the second motor 306, and the electric push rod 8, making it convenient for users or caregivers to operate, improving the automation level and ease of operation of the wheelchair. The rubber anti-slip protrusions 10 increase the roughness of the surface of the pedal body 403, significantly increasing the friction between the elderly person's feet and the pedal body 403. During the use of the wheelchair, this effectively prevents the feet from slipping, ensures the stability of the feet on the pedal body 403, reduces the risk of accidents caused by foot slippage, and improves the safety of use.

[0030] Working Principle: First, ensure the wheelchair is stable and stationary. If the footrest body 403 is in the retracted state, the user can begin use. Once the user sits on top of the seat 1, the controller 9 starts the first motor 404. The output of the first motor 404 rotates, driving the fixedly connected shaft 402 to rotate within the U-shaped frame 401. This causes the footrest body 403 to rotate around the shaft 402, changing from the retracted state to the lowered state, providing a platform for the user's feet. When the user needs to leave the wheelchair, the controller 9 is operated again, causing the first motor 404 to reverse, driving the footrest body 403 to rotate and retract, facilitating the user's ascent. When the user needs to move the footrest body 403... When adjusting the height, the operating controller 9 starts the second motor 306, which drives the screw 302 to rotate, causing the threaded block 303 to move along the axis of the screw 302. When the threaded block 303 moves, it drives the connecting frame 301 to move together, thereby realizing the height adjustment of the pedal assembly 4. After adjusting to the appropriate height, the controller 9 turns off the second motor 306 to keep the pedal assembly 4 stably at that height. If it is necessary to fix the feet, the operating controller 9 starts the electric push rod 8. The electric push rod 8 extends and pushes the baffle 7 to slide upward in the placement groove 6, which can restrict the user's feet and prevent the feet from slipping or shifting during the movement of the wheelchair.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elderly wheelchair with automatic opening and closing footrest, comprising a seat (1), characterized in that: The bottom of the seat (1) is fixedly connected to a bracket (2), and a lifting assembly (3) is provided on the front side of the bracket (2). The lifting assembly (3) includes a connecting frame (301), and pedal assemblies (4) are fixedly connected to both sides of the front side of the connecting frame (301). The pedal assembly (4) includes a U-shaped frame (401), and a rotating shaft (402) is rotatably connected inside the U-shaped frame (401) via a bearing. The pedal body (403) is fixedly sleeved on the surface of the rotating shaft (402). A first motor (404) is fixedly connected to the rear side of the U-shaped frame (401). The output end of the first motor (404) passes through the U-shaped frame (401) and is fixedly connected to the rotating shaft (402).

2. The elderly wheelchair with an automatic opening and closing footrest according to claim 1, characterized in that: The bracket (2) has adjustment slots (5) on both sides of the front side. The left adjustment slot (5) is rotatably connected to a screw (302), and the right adjustment slot (5) is fixedly connected to a limit rod (304).

3. The elderly wheelchair with an automatic opening and closing footrest according to claim 2, characterized in that: The screw (302) has a threaded block (303) threadedly connected to its surface, and the limiting rod (304) has a slidably connected limiting block (305) to its surface. The threaded block (303) and the limiting block (305) are respectively fixedly connected to the two sides of the rear side of the connecting frame (301).

4. The elderly wheelchair with an automatic opening and closing footrest according to claim 2, characterized in that: The bottom end of the screw (302) is fixedly connected to a second motor (306), which is fixedly connected to the bottom of the inner wall of the left adjustment groove (5).

5. The elderly wheelchair with an automatic opening and closing footrest according to claim 1, characterized in that: The top of the pedal body (403) is provided with a placement groove (6), and a baffle (7) is slidably connected inside the placement groove (6).

6. The elderly wheelchair with an automatic opening and closing foot pedal according to claim 5, characterized in that: An electric push rod (8) is fixedly connected to the bottom of the pedal body (403). The telescopic end of the electric push rod (8) passes through the pedal body (403) and is fixedly connected to the bottom of the baffle (7).

7. The elderly wheelchair with an automatic opening and closing footrest according to claim 6, characterized in that: A controller (9) is fixedly connected to the right side of the front of the seat (1). The first motor (404), the second motor (306), and the electric push rod (8) are all electrically connected to the controller (9).

8. The elderly wheelchair with an automatic opening and closing footrest according to claim 1, characterized in that: The top of the pedal body (403) is fixedly connected with an anti-slip protrusion (10), and the anti-slip protrusion (10) is made of rubber.

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