Sitting chair for disabled person

Abstract

The invention discloses a sitting and standing chair for the disabled, the sitting and standing chair comprises a base, wheels are arranged on the base, a cushion is arranged above the base, and a lifting structure is connected to the cushion, the sitting and standing chair for the disabled is high in convenience, and a user can stand conveniently.

Description

Technical Field

[0001] The invention belongs to the field of rehabilitation assistive devices, and in particular relates to a sit-stand chair for disabled people. Background Art

[0002] Current disabled chairs generally have a simple structure and can only be used for sitting. When the user needs to switch to a standing position, the disabled person's body function is not sufficient to shift the body's center of gravity, and this can only be achieved with the help of others. The process is time-consuming and laborious, causing inconvenience to the user's rest and activities.

[0003] The invention patent with publication number CN 104013501A was published on September 3, 2014. The invention patent is named a chair for the disabled, which includes a battery, a motor, a manual wheel, a small wheel, a backrest, and a seat cushion. The seat cushion is provided with an armrest to stabilize the disabled and prevent them from falling. The seat cushion is also provided with a direction control lever to control the forward direction and speed of the seat. The lower side of the seat cushion is connected to a battery and a motor, the upper side of the seat cushion is connected to a backrest, and the other side of the seat cushion opposite to the backrest is connected to a foot pedal, a pad bracket is provided on the foot pedal, and a backrest bracket is provided on the backrest. The seat for the disabled cannot solve the technical problems described above. Summary of the invention

[0004] The purpose of the present invention is to provide a sitting chair for the disabled which is highly convenient and convenient for users to stand up, in view of the deficiencies in the prior art.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] The sitting-standing chair for the disabled comprises a base, wherein wheels are arranged on the base, a seat cushion is arranged above the base, and the seat cushion is connected with a lifting structure.

[0007] The lifting structure includes a hydraulic cylinder, the seat cushion is connected to an upper supporting bracket, the base is provided with a lower supporting bracket, the upper supporting bracket and the lower supporting bracket are connected to a lifting bracket, the upper supporting bracket and the lower supporting bracket are provided with sliding grooves, both ends of the lifting bracket are provided with sliding shafts, the sliding shaft passes through the sliding grooves, the hydraulic cylinder includes a piston rod, and the bottom end of the hydraulic cylinder and the end of the piston rod are respectively hinged to the two ends of the lifting bracket.

[0008] The hydraulic cylinder is arranged in an inclined manner.

[0009] A mounting groove is provided in the middle of the base, a battery is provided in the mounting groove, the battery is located below the lifting bracket, and a heat dissipation hole is provided at the bottom of the mounting groove.

[0010] A foot pedal is provided at one end of the base, overlapping edges are provided at both ends of the foot pedal, and a groove structure is provided in the middle of the foot pedal.

[0011] A mounting hole is provided at one end of the upper support bracket, and a connecting rod is provided at the bottom end of the seat cushion. The connecting rod is connected to the mounting hole, and the mounting holes are arranged at equal intervals.

[0012] The wheels include a front wheel and a rear wheel, wherein the front wheel is arranged at both sides of one end of the base, and the rear wheel is arranged inside the other end of the base, and the rear wheel is connected with a universal bracket.

[0013] The base is also provided with side brackets, which are located at both sides of the lifting bracket, and the top of the side bracket is provided with a mounting platform.

[0014] The lifting brackets are arranged in pairs.

[0015] The technical effect of the present invention is: by using the sitting-standing chair for the disabled of the present invention, the lifting bracket is driven by a hydraulic cylinder to realize the lifting and lowering of the seat cushion, thereby realizing the transfer of the body's center of gravity and satisfying the user's need to switch to a standing posture. The user does not need to rely on auxiliary tools or the support of other people during use. The operation process is simple and bounded, and the user's rest and activity convenience are high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] This specification includes the following drawings, which show the following contents:

[0017] Figure 1 It is a structural schematic diagram of a sit-stand chair for the disabled of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a sit-stand chair for the disabled of the present invention;

[0019] Figure 3 is a side view of the sit-to-stand chair for the disabled of the present invention;

[0020] Figure 4 is a bottom view of the sit-stand chair for the disabled of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the lifting structure of the present invention;

[0022] Figure 6 It is a schematic diagram of the installation of the battery of the present invention;

[0023] Figure 7 It is a partial structural schematic diagram of the sit-stand chair for the disabled of the present invention.

[0024] The markings in the figure are: 1. Base; 2. Front wheel; 3. Rear wheel; 4. Battery; 5. Seat cushion; 6. Hydraulic cylinder; 7. Piston rod; 8. Lifting bracket; 9. Upper support bracket; 10. Lower support bracket; 11. Sliding shaft; 12. Slide groove; 13. Connecting rod; 14. Mounting hole; 15. Mounting groove; 16. Heat dissipation hole; 17. Foot pedal; 18. Overlap edge; 19. Side bracket; 20. Mounting platform; 21. Universal bracket. DETAILED DESCRIPTION

[0025] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0026] like Figures 1 to 3 As shown, the disabled person's sitting and standing chair comprises a base 1, on which wheels are arranged, a cushion 5 is arranged above the base 1, and the cushion 5 is connected to a lifting structure. The disabled person's sitting and standing chair as a whole adopts a trolley structure, which is convenient for position movement. The movement of the lifting structure can drive the lifting and lowering of the cushion 5. The movement of the lifting structure is realized by the hydraulic cylinder 6 driving the lifting bracket 8. The user sitting on the cushion 5 will shift the body's center of gravity as the cushion 5 is lifted and lowered, and the user can switch to a standing posture, which makes the rest and activity process more convenient.

[0027] like Figures 1 to 5 As shown, the lifting structure includes a hydraulic cylinder 6, a cushion 5 is connected to an upper supporting bracket 9, a lower supporting bracket 10 is provided on the base 1, the upper supporting bracket 9 and the lower supporting bracket 10 are connected to a lifting bracket 8, a slide groove 12 is provided on the upper supporting bracket 9 and the lower supporting bracket 10, and sliding shafts 11 are provided at both ends of the lifting bracket 8, and the sliding shaft 11 passes through the slide groove 12. The hydraulic cylinder 6 includes a piston rod 7, and the bottom end of the hydraulic cylinder 6 and the end of the piston rod 7 are respectively hinged to the two ends of the lifting bracket 8. The lifting bracket 8 is composed of multiple connecting plates that are alternately hinged. Slide grooves 12 are set on the upper supporting bracket 9 and the lower supporting bracket 10 to adapt to the position change of the sliding shaft 11 driven by the movement of the lifting bracket 8. The lifting bracket 8 moves horizontally in the slide groove 12 through the sliding shafts 11 set at both ends, which has the effect of limiting the lifting height of the lifting bracket 8. The hydraulic cylinder 6 provides power for the movement of the lifting bracket 8. The hydraulic cylinder 6 drives the lifting bracket 8 to move and drive the seat cushion to rise and fall. When the seat cushion rises from the lowest height to the highest height, the center of gravity of the user sitting on the seat cushion is transferred, and the user can stand up. The starting structure of the hydraulic cylinder 6 is connected to the opening and closing structure of the backrest connected to the mounting platform 20, and the hydraulic cylinder 6 is started by the movement of the body's shoulders.

[0028] like Figure 5As shown, the hydraulic cylinder 6 is tilted. The above structure makes the supporting point of the piston rod 7 of the hydraulic cylinder 6 closer to the seat cushion 5, which is beneficial to bearing the weight of the user and avoiding deformation of the lifting bracket 8.

[0029] like Figure 7 As shown, a mounting groove 15 is provided in the middle of the base 1, and a battery 4 is provided in the mounting groove 15. The battery 4 is located below the lifting bracket 8, and a heat dissipation hole 16 is provided at the bottom of the mounting groove 15. The battery 4 provides power for the movement of the trolley and can drive the wheels to move. The battery 4 provides power for the movement of the trolley, eliminating the need for the user to manually turn the wheels. The mounting groove 15 reduces the space occupied by the battery 4 in the base 1. At the same time, the lower support bracket 10 is designed as a U-shaped structure to avoid the top space of the battery 4, making the structure more compact. The heat dissipation hole 16 provides heat dissipation for the battery 4 to ensure reliable operation of the battery 4. The battery 4 is close to the rear wheel 3, which can balance the weight of the overall structure of the trolley and prevent the trolley from tipping over.

[0030] like Figures 1 to 3 As shown, a footrest 17 is provided at one end of the base 1, and overlapping edges 18 are provided at both ends of the footrest 17, and the middle of the footrest 17 is a groove structure. The footrest 17 provides a plane for the user to place his feet, and the user's feet are elevated above the ground, and the user's feet are supported, which helps to maintain the user's body balance, helps the user to maintain a comfortable sitting posture, relieves the discomfort caused by long-term sitting, and increases safety. The two ends of the footrest 17 are bent to form overlapping edges 18, which are fixed to the base 1 by welding or riveting, so that its position is stable, the structure is simple, and the manufacturing cost is low.

[0031] like Figure 5 As shown, a mounting hole 14 is provided at one end of the upper support bracket 9, and a connecting rod 13 is provided at the bottom end of the seat cushion 5, and the connecting rod 13 is connected to the mounting hole 14, and the mounting holes 14 are arranged at equal intervals. The seat cushion 5 and the upper support bracket 9 are movably connected, and can follow the movement of the waist or hips of the user when sitting, and a plurality of mounting holes 14 are provided on the upper support bracket 9 to facilitate the switching of the installation position of the seat cushion 5, and the position can be adjusted according to the user's choice, thereby improving the user's riding comfort.

[0032] like Figures 1 to 3 As shown, the wheels include a front wheel 2 and a rear wheel 3. The front wheel 2 is arranged on both sides of one end of the base 1, and the rear wheel 3 is arranged inside the other end of the base 1. The rear wheel 3 is connected to a universal bracket 21. The battery 4 provides power for the movement of the overall structure of the trolley. The front wheel 2 has a larger wheelbase and diameter, and has a better support effect, providing safety protection for the user when getting on and off the seat. The rear wheel 3 is a universal wheel structure, which meets the requirement of unobstructed steering of the overall structure of the trolley. The rear wheel 3 is located on the inner side of the base 1 and is protected by the two side panels of the base 1, so it is not easy to be damaged.

[0033] like Figure 6As shown, the base 1 is further provided with side brackets 19, which are located on both sides of the lifting bracket 8, and a mounting platform 20 is provided on the top of the side bracket 19. The side bracket 19 is vertically arranged, and the mounting platform 20 is a horizontal structure. A plurality of holes are arranged on the mounting platform 20 and the side bracket 19 for installing a backrest and an armrest structure, further improving the convenience of use and the riding comfort of the user.

[0034] The lifting brackets 8 are arranged in pairs. The above structure further improves the stability of the seat cushion 5.

[0035] The method of use is as follows: when the user is riding, the feet are placed on the foot pedals 17, which are suspended from the ground to ensure the balance of the body. The wheels are driven to move as a whole. When the user needs to switch to a standing position, the user activates the hydraulic cylinder 6 through shoulder movement. The hydraulic cylinder 6 pushes the piston rod 7 to drive the lifting bracket 8 to lift the seat cushion 5. The user's center of gravity is shifted and the user can switch to a standing position. The operation process does not require external tools or personnel assistance, and is very convenient.

[0036] The sitting-standing chair for the disabled drives the lifting bracket 8 to move by the hydraulic cylinder 6 to realize the raising and lowering of the seat cushion 5, realizes the transfer of the body's center of gravity, and satisfies the user's need to switch to a standing posture. The user does not need to rely on auxiliary tools or the support of other people during use. The operation process is simple and boundless, and the user's rest and activity convenience are high.

[0037] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A sit-stand chair for the disabled, characterized in that: It comprises a base (1), the base (1) is provided with wheels, a seat cushion (5) is provided above the base (1), and the seat cushion (5) is connected to a lifting structure.

2. The sitting chair for the disabled according to claim 1, characterized in that: The lifting structure comprises a hydraulic cylinder (6), the seat cushion (5) is connected to an upper support bracket (9), the base (1) is provided with a lower support bracket (10), the upper support bracket (9) and the lower support bracket (10) are connected to a lifting bracket (8), the upper support bracket (9) and the lower support bracket (10) are both provided with a slide groove (12), both ends of the lifting bracket (8) are provided with a sliding shaft (11), the sliding shaft (11) passes through the slide groove (12), the hydraulic cylinder (6) comprises a piston rod (7), and the bottom end of the hydraulic cylinder (6) and the end of the piston rod (7) are respectively hinged to the two ends of the lifting bracket (8).

3. The sitting chair for the disabled according to claim 2, characterized in that: The hydraulic cylinder (6) is arranged in an inclined manner.

4. The sitting chair for the disabled according to claim 3, characterized in that: A mounting groove (15) is provided in the middle of the base (1), a battery (4) is provided in the mounting groove (15), the battery (4) is located below the lifting bracket (8), and a heat dissipation hole (16) is provided at the bottom of the mounting groove (15).

5. The sitting chair for the disabled according to claim 4, characterized in that: A foot pedal (17) is provided at one end of the base (1), overlapping edges (18) are provided at both ends of the foot pedal (17), and the middle portion of the foot pedal (17) is a groove structure.

6. The sitting chair for the disabled according to any one of claims 2 to 5, characterized in that: One end of the upper support bracket (9) is provided with a mounting hole (14), and the bottom end of the seat cushion (5) is provided with a connecting rod (13), the connecting rod (13) is connected to the mounting hole (14), and the mounting holes (14) are arranged at equal intervals.

7. The sitting chair for the disabled according to claim 6, characterized in that: The wheels comprise a front wheel (2) and a rear wheel (3); the front wheel (2) is arranged on both sides of one end of the base (1); the rear wheel (3) is arranged inside the other end of the base (1); and the rear wheel (3) is connected to a universal bracket (21).

8. The sitting chair for the disabled according to claim 5, characterized in that: The base (1) is also provided with a side bracket (19), the side bracket (19) is located on both sides of the lifting bracket (8), and a mounting platform (20) is provided on the top of the side bracket (19).

9. The sitting chair for the disabled according to claim 2, characterized in that: The lifting brackets (8) are arranged in pairs.

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