Multifunctional balance auxiliary standing wheelchair

Abstract

The utility model provides a multifunctional balance auxiliary standing wheelchair, which relates to the technical field of auxiliary standing wheelchairs and comprises a base, a seat is rotatably mounted above the base through a hinge, an inclination mechanism is arranged between the seat and the base, a walking lifting mechanism is arranged below the base, and an adjustable leg support is mounted on one side of the base. By arranging the tilting mechanism, when a patient needs to stand up, the tilting mechanism is started, the tilting push rod pushes the seat table to tilt towards one side of the adjustable leg support, the seat table lifts the patient and lifts the patient, and when the seat table is vertical, the patient stands up under the pushing of the seat table and supports the patient from one side, so that the patient is more convenient and labor-saving to stand up.

Description

Technical Field

[0001] This utility model belongs to the field of assistive standing wheelchair technology, and in particular relates to a multifunctional balance assistive standing wheelchair. Background Technology

[0002] Wheelchairs are chairs with wheels and are important mobility tools for the injured, sick, and disabled to use at home for rehabilitation, transportation, medical treatment, and outdoor activities. They are customized according to the specific needs of people with limited mobility, such as adjusting the weight of the wheelchair, adding configurations, special seat cushions or backrests, etc. They are suitable for people with more complex diseases or special needs for travel. They are durable, lightweight, and more flexible, meeting the needs of more usage scenarios.

[0003] When a patient needs to stand up while using a wheelchair, they are unable to do so on their own and require medical staff to assist them from one side, which is very inconvenient. Furthermore, during the assistance process, the patient and the wheelchair are prone to bumping into each other, resulting in injury. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a multifunctional balance-assisted standing wheelchair, which more accurately solves the problems described above.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a multifunctional balance-assisted standing wheelchair, including a base, a seat mounted on the top of the base via a hinge, a tilting mechanism between the seat and the base, a walking lifting mechanism below the base, an adjustable leg rest mounted on one side of the base, and a backrest mechanism mounted on the other side of the base. The tilting mechanism includes two tilting push rods, one end of which is hinged to the bottom surface of the seat and the other end of which is hinged to the base.

[0007] In one example, the adjustable leg rest includes a leg rest plate located on one side of the seat. Two angle adjustment motors are installed on both sides of the seat, close to the leg rest plate. The main shaft of the angle adjustment motor is fixedly connected to a seven-star column. The leg rest plate has insertion holes that mate with the seven-star column, through which the seven-star column passes. An extension plate is installed on the back of the leg rest plate, and auxiliary wheels are installed on both sides of the extension plate. Two leg pads are installed on one side of the leg rest plate, and a foot pedal is fixedly connected to one side of the leg rest plate near the leg pads.

[0008] In one example, the extension plate is slidably connected to the leg support plate, and one side of the leg support plate is rotatably connected to a first ball screw, which is threadedly connected to the extension plate.

[0009] In one example, the backrest mechanism includes a backrest support plate located on one side of a base. Two angle-adjusting motors are fixedly connected to the base, and a seven-star column is installed between the angle-adjusting motors. The backrest support plate is provided with a socket through which the seven-star column passes. A backrest cushion is fixedly connected to one side of the backrest support plate, and a headrest is fixedly connected to one end of the backrest support plate.

[0010] In one example, the walking and lifting mechanism includes a front base plate and a rear base plate, both located below the base. Three sets of front hydraulic rods are hinged between the front base plate and the base, and three rear hydraulic rods are hinged between the rear base plate and the base. The front and rear hydraulic rods are arranged crosswise, with two of the three front and three rear hydraulic rods arranged symmetrically. One front hydraulic rod is located on the left side of the center of the base, and one rear hydraulic rod is located on the right side of the center of the base. A hydraulic cylinder is hinged between one front hydraulic rod and one rear hydraulic rod located on either side of the centerline of the base and the base. Walking motors are fixedly connected to both sides of the front base plate, and the main shafts of the walking motors are fixedly connected to walking wheels. Two omnidirectional wheels are installed on one side of the rear base plate.

[0011] In one example, a second ball screw is installed at the upper end of a front hydraulic rod and a rear hydraulic rod located on both sides of the centerline of the base. A motor is installed on one side of the second ball screw. Guide rails are fixedly connected to one side of the front base plate and the rear base plate. The two guide rails are respectively threaded to the screws of the two second ball screws.

[0012] In one example, the upper surface of the seat is fixedly connected to two armrests, one of which is equipped with an operating lever.

[0013] The multifunctional balance-assisted standing wheelchair proposed in this utility model can bring the following beneficial effects:

[0014] Firstly, by setting up a tilting mechanism, the patient sits on the platform with their legs placed on the adjustable leg rests and their back against the backrest mechanism. When the patient needs to stand up, the tilting mechanism is activated, and the tilting push rod pushes the platform to tilt towards the adjustable leg rests. The platform lifts the patient up, and when the platform is upright, the patient stands up under the push of the platform. The platform supports the patient from one side, making it easier and less strenuous for the patient to stand up.

[0015] Secondly, by setting up a walking and lifting mechanism, the different tilt states of the front and rear hydraulic rods can be controlled separately, so that the seat and base are in different tilt states. In this way, when encountering a slope, the seat and base can be kept horizontal on the slope. The motor drives the second ball screw to rotate, and the second ball screw pushes the guide rail, pushing the front base plate and the rear base plate. At the same time, the hydraulic rods extend and retract to adjust the height, which can adjust the height of the base and seat, so that the height of the seat can be increased, making it easier for the seat and leg support to rotate perpendicular to the ground. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram showing the horizontal state of the seat, leg rest, and backrest support of this utility model.

[0020] Figure 3 This is a schematic diagram of the seat and leg rest of this utility model in their vertical position.

[0021] Figure 4 This is a schematic diagram of the tilting mechanism of this utility model.

[0022] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0023] Figure 6 This is a schematic diagram of the walking and lifting mechanism of this utility model.

[0024] In the diagram: 1. Base; 2. Seat; 3. Tilting mechanism; 31. Tilting push rod; 4. Walking and lifting mechanism; 41. Front base plate; 42. Rear base plate; 43. Front hydraulic rod; 44. Rear hydraulic rod; 45. Hydraulic cylinder; 46. Walking motor; 47. Walking wheel; 48. Universal wheel; 5. Adjustable leg rest; 51. Leg support plate; 52. Extension plate; 53. Auxiliary wheel; 54. Leg pad; 55. Foot pedal; 6. Backrest mechanism; 61. Backrest support plate; 62. Backrest pad; 63. Headrest; 7. First ball screw; 8. Second ball screw; 9. Guide rail; 10. Armrest; 11. Operating lever. Detailed Implementation

[0025] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0026] like Figures 1-6As shown, an embodiment of this utility model proposes an assisted standing wheelchair, including a base 1, a seat 2 mounted on the top of the base 1 via a hinge, a tilting mechanism 3 between the seat 2 and the base 1, a walking lifting mechanism 4 below the base 1, an adjustable leg rest 5 mounted on one side of the base 1, and a backrest mechanism 6 mounted on the other side of the base 1. The tilting mechanism 3 includes two tilting push rods 31, one end of which is hinged to the bottom surface of the seat 2, and the other end is hinged to the base 1. The patient sits on the seat 2 with their legs placed on the adjustable leg rest 5 and their back against the backrest mechanism 6. When the patient needs to stand up, the tilting mechanism 3 is activated, and the tilting push rods 31 push the seat 2 to tilt towards the adjustable leg rest 5. The seat 2 lifts the patient, raising them up. When the seat 2 is upright, the patient stands up under the push of the seat 2, providing support from one side and making it easier and less strenuous for the patient to stand up.

[0027] like Figures 1 to 3 As shown, the adjustable leg rest 5 includes a leg rest plate 51, which is located on one side of the seat platform 2. Two angle adjustment motors are installed on both sides of the seat platform 2, close to the leg rest plate 51. The main shaft of the angle adjustment motor is fixedly connected to a seven-star column. The leg rest plate 51 has a socket that mates with the seven-star column, through which the seven-star column passes. The leg rest plate 51 and the seat platform 2 are rotatably connected via the seven-star column. The angle adjustment motor drives the seven-star column to rotate, which in turn drives the leg rest plate 51 to rotate, thus adjusting the angle between the seat platform 2 and the leg rest plate 51. Normally, the seat platform 2 and the leg rest plate 51 are perpendicular. When the patient needs to stand up, the leg rest plate 51 is first adjusted to be horizontal with the seat platform 2. When the seat platform 2 is tilted, the seat platform 2 then drives the leg rest plate to rotate. The leg support 51 rotates to a more vertical position, facilitating the patient's standing. An extension plate 52 is installed on the back of the leg support 51, and auxiliary wheels 53 are installed on both sides of the extension plate 52. Two leg pads 54 are installed on one side of the leg support 51, and a foot pedal 55 is fixedly connected to one side of the leg support 51 near the leg pads 54. When the patient sits on the seat 2, their feet are on the foot pedal 55. When the seat 2 and the leg support 51 rotate to a more vertical position, the patient stands on the leg support 51. Once the patient is ready, they can step down from the foot pedal 55. This prevents the patient's feet from slipping on the ground when the seat 2 and the leg support 51 are tilted and rotated to a more vertical position, which could cause the patient to slip off the seat 2 and be injured.

[0028] like Figure 5 As shown, the extension plate 52 is slidably connected to the leg support plate 51. The first ball screw 7 is rotatably connected to one side of the leg support plate 51. The first ball screw 7 is threadedly connected to the extension plate 52. Before the patient uses the device, the first ball screw 7 can be rotated according to the patient's height to make the extension plate 52 slide on the leg support plate 51 and adjust the length between the extension plate 52 and the leg support plate 51 so that the patient can comfortably step on the foot pedal 55. This allows the device to adapt to patients of different heights.

[0029] like Figures 1 to 5 As shown, the backrest mechanism 6 includes a backrest support plate 61, which is located on one side of the base 1. Two angle-adjusting motors are fixedly connected to the base 1, and a seven-star column is installed between the angle-adjusting motors. The backrest support plate 61 has a socket through which the seven-star column passes. A backrest cushion 62 is fixedly connected to one side of the backrest support plate 61, and a headrest 63 is fixedly connected to one end of the backrest support plate 61. The angle-adjusting motor drives the seven-star column to rotate, which in turn drives the backrest support plate 61 to rotate, adjusting the tilt angle of the backrest support plate 61. When the patient needs to stand, the leg support plate 51 is level with the seat 2, at which point the angle-adjusting motor... The seven-star pillar rotates, causing the backrest support plate 61 to rotate and tend to be horizontal. At this time, the seat 2, backrest support plate 61, and leg support plate 51 are all tending to be horizontal, and the patient is in a lying position in the wheelchair. Then, the tilting push rod 31 pushes the seat 2 and leg support plate 51 to rotate together to a vertical position, thereby allowing the lying patient to rotate to a standing position. By setting the backrest support plate 61, when the patient has a condition, the backrest support plate 61, seat 2, and leg support plate 51 can be adjusted to a horizontal position, making it convenient for the patient to lie down for relief or medical treatment, and making the use more flexible.

[0030] like Figure 6 As shown, the walking and lifting mechanism 4 includes a front base plate 41 and a rear base plate 42, both located below the base 1. Three sets of front hydraulic rods 43 are hinged between the front base plate 41 and the base 1, and three sets of rear hydraulic rods 44 are hinged between the rear base plate 42 and the base 1. The front and rear hydraulic rods 43 and 44 are arranged crosswise, with two of the three front and three rear hydraulic rods 44 arranged symmetrically. One front hydraulic rod 43 is located on the left side of the center of the base 1, and one rear hydraulic rod 44 is located on the right side of the center of the base 1. A hydraulic cylinder 45 is hinged between one front hydraulic rod 43 and one rear hydraulic rod 44 located on either side of the centerline of the base 1 and the base 1. The hydraulic cylinder 45 is used for... The angle between the front hydraulic rod 43 and the rear hydraulic rod 44 and the base 1 is controlled. When the hydraulic cylinder 45 stops, the tilt state of the front hydraulic rod 43 and the rear hydraulic rod 44 can be adjusted. By controlling the different tilt states of the front hydraulic rod 43 and the rear hydraulic rod 44 respectively, the seat 2 and the base 1 can be in different tilt states. In this way, when encountering a slope, the seat 2 and the base 1 can be kept horizontal on the slope. The two sides of the front base plate 41 are fixedly connected to the walking motor 46, and the main shaft of the walking motor 46 is fixedly connected to the walking wheel 47. Two universal wheels 48 are installed on one side of the rear base plate 42. The walking motor 46 controls the left and right walking wheels 47 installed on the bottom to realize the free movement of the wheelchair.

[0031] like Figure 6As shown, a second ball screw 8 is installed at the upper end of a front hydraulic rod 43 and a rear hydraulic rod 44 located on both sides of the center line of the base 1. A motor is installed on one side of the second ball screw 8. A guide rail 9 is fixedly connected to one side of the front base plate 41 and the rear base plate 42. The two guide rails 9 are respectively threaded to the screws of the two second ball screws 8. The motor drives the second ball screw 8 to rotate, and the second ball screw 8 pushes the guide rail 9, pushing the front base plate 41 and the rear base plate 42. At the same time, the hydraulic rods extend and retract to adjust the height, which can adjust the height of the base 1 and the seat 2, so that the height of the seat 2 can be increased, making it easier for the seat 2 and the leg support plate 51 to rotate perpendicular to the ground.

[0032] like Figure 6 As shown, two armrests 10 are fixedly connected to the upper surface of the seat 2. One of the armrests 10 is equipped with an operating lever 11. The wheelchair has a gyroscope and a microcontroller control system, which can sense the position and angle of the wheelchair. By operating the lever 11, the angle of the walking lifting mechanism 4 is controlled to achieve balance.

[0033] Working principle: The patient sits on the seat 2 with his / her legs placed on the adjustable leg rest 5 and his / her feet on the foot pedal 55. When he / she stands up, the angle adjustment motor drives the seven-star column to rotate, which in turn drives the leg rest 51 to rotate, making the leg rest 51 horizontal. The angle adjustment motor then drives the seven-star column to rotate, making the backrest support 61 rotate and tend to be horizontal. At this time, the seat 2, backrest support 61, and leg rest 51 are all tending to be horizontal, and the patient is in a lying position in the wheelchair. The tilting push rod 31 pushes the seat 2 and leg rest 51 to rotate together to a vertical position, thereby enabling the lying patient to rotate to an upright position.

[0034] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A multifunctional balance-assisted standing wheelchair, comprising a base (1), characterized in that, A seat (2) is mounted on the top of the base (1) via a hinge. A tilting mechanism (3) is provided between the seat (2) and the base (1). A walking lifting mechanism (4) is provided below the base (1). An adjustable leg rest (5) is installed on one side of the base (1). A backrest mechanism (6) is provided on the other side of the base (1). The tilting mechanism (3) includes two tilting push rods (31). One end of the tilting push rod (31) is hinged to the bottom surface of the seat (2), and the other end is hinged to the base (1).

2. The multifunctional balance-assisted standing wheelchair according to claim 1, characterized in that, The adjustable leg rest (5) includes a leg rest plate (51) located on one side of the seat (2). Two angle adjustment motors are installed on both sides of the seat (2). The angle adjustment motors are close to the leg rest plate (51). The main shaft of the angle adjustment motor is fixedly connected to a seven-star column. The leg rest plate (51) is provided with a socket that matches the seven-star column. The seven-star column passes through the socket. An extension plate (52) is installed on the back of the leg rest plate (51). Auxiliary wheels (53) are installed on both sides of the extension plate (52). Two leg pads (54) are installed on one side of the leg rest plate (51). A foot pedal (55) is fixedly connected to one side of the leg rest plate (51) near the leg pads (54).

3. The multifunctional balance-assisted standing wheelchair according to claim 2, characterized in that, The extension plate (52) is slidably connected to the leg support plate (51), and one side of the leg support plate (51) is rotatably connected to the first ball screw (7), which is threadedly connected to the extension plate (52).

4. The multifunctional balance-assisted standing wheelchair according to claim 1, characterized in that, The backrest mechanism (6) includes a backrest support plate (61), which is located on one side of the base (1). Two angle adjustment motors are fixedly connected to the base (1), and a seven-star column is installed between the angle adjustment motors. The backrest support plate (61) is provided with a socket, through which the seven-star column passes. A backrest cushion (62) is fixedly connected to one side of the backrest support plate (61), and a headrest (63) is fixedly connected to one end of the backrest support plate (61).

5. A multifunctional balance-assisted standing wheelchair according to claim 1, characterized in that, The walking lifting mechanism (4) includes a front base plate (41) and a rear base plate (42). Both the front base plate (41) and the rear base plate (42) are located below the base (1). Three sets of front hydraulic rods (43) are hinged between the front base plate (41) and the base (1), and three rear hydraulic rods (44) are hinged between the rear base plate (42) and the base (1). The front hydraulic rods (43) and the rear hydraulic rods (44) are arranged crosswise. Two of the three front hydraulic rods (43) and the three rear hydraulic rods (44) are arranged symmetrically from left to right. The front hydraulic rod (43) is located on the left side of the middle of the base (1), and a rear hydraulic rod (44) is located on the right side of the middle of the base (1). A hydraulic cylinder (45) is hinged between the front hydraulic rod (43) and the rear hydraulic rod (44) on both sides of the center line of the base (1) and the base (1). The front base plate (41) is fixedly connected to both sides of the walking motor (46), and the main shaft of the walking motor (46) is fixedly connected to the walking wheel (47). Two universal wheels (48) are installed on one side of the rear base plate (42).

6. A multifunctional balance-assisted standing wheelchair according to claim 5, characterized in that, A second ball screw (8) is installed at the upper end of a front hydraulic rod (43) and a rear hydraulic rod (44) located on both sides of the center line of the base (1). A motor is installed on one side of the second ball screw (8). A guide rail (9) is fixedly connected to one side of the front base plate (41) and the rear base plate (42). The two guide rails (9) are respectively threaded to the screws of the two second ball screws (8).

7. A multifunctional balance-assisted standing wheelchair according to claim 1, characterized in that, Two armrests (10) are fixedly connected to the upper surface of the seat (2), and an operating lever (11) is installed on one of the armrests (10).

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