Electric wheelchair with anti-toppling function

Abstract

The utility model relates to the technical field of electric wheelchairs, in particular to an electric wheelchair with an anti-toppling function, which comprises a wheelchair main body, the wheelchair further comprises an anti-inclination assembly, the anti-inclination assembly is arranged at the bottom of the wheelchair body and comprises a connecting frame, electric air cylinders, a connecting block, a supporting rod, a supporting block, a rubber block, a gyroscope and a single chip microcomputer, the connecting frame is connected to the lower end of the wheelchair body, and the electric air cylinders are connected to the left side and the right side of the interior of the connecting frame. Two connecting blocks are connected to the positions, close to the middle of the connecting frame, of the electric air cylinders. By arranging the anti-inclination assembly, when the wheelchair body topples towards the left side and the right side and exceeds the safety angle of the gyroscope, the single chip microcomputer controls the electric air cylinder, the electric air cylinder drives the connecting block to be rapidly folded, and therefore the supporting rod is pushed outwards, the supporting rod drives the supporting block to move, and the rubber block on the supporting block makes contact with the ground; therefore, the anti-toppling function is achieved, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric wheelchair technology field especially, it relates to a kind of electric wheelchair with anti-toppling function. BACKGROUND

[0002] Electric wheelchair is a kind of intelligent wheelchair equipment driven by motor, specially designed for people who are inconvenient to move or need to assist walking, including the elderly, disabled people and postoperative convalescents.It uses battery as power source, controls using control handle, key, even voice or mobile phone App, can automatically travel, turn, brake, helps user to move freely indoors and outdoors.

[0003] The existing electric wheelchair may tip over due to unstable center of gravity when encountering steep slope, obstacle or sudden acceleration and braking during driving, however, many models are not equipped with emergency anti-toppling function, which may cause user to lose balance, increase the risk of falling and injury in emergency situation.

[0004] Therefore, in view of the above-mentioned problems that the existing electric wheelchair may tip over due to unstable center of gravity when encountering steep slope, obstacle or sudden acceleration and braking during driving, however, many models are not equipped with emergency anti-toppling function, which may cause user to lose balance, increase the risk of falling and injury in emergency situation, a kind of electric wheelchair with anti-toppling function can be designed to increase emergency anti-toppling structure, which can adopt side support block and electronic gyroscope balance control, when detecting that wheelchair inclination angle exceeds safe range, anti-toppling support structure is rapidly deployed to prevent wheelchair from overturning, which not only improves the safety of user, but also enhances the stability of riding, so that user can drive wheelchair more confidently in complex road conditions such as concave-convex ground, reduce the possibility of accident. SUMMARY

[0005] In order to overcome the problem that the existing electric wheelchair may tip over due to unstable center of gravity when encountering steep slope, obstacle or sudden acceleration and braking during driving, however, many models are not equipped with emergency anti-toppling function, which may cause user to lose balance, increase the risk of falling and injury in emergency situation.

[0006] The utility model discloses a technical scheme for an electric wheelchair with anti-toppling function, comprising a wheelchair body, an anti-toppling assembly, an anti-toppling assembly arranged at the bottom of the wheelchair body, the anti-toppling assembly comprising a connecting frame, an electric cylinder, a connecting block, a supporting rod, a supporting block, a rubber block, a gyroscope and a single-chip microcomputer, the lower end of the wheelchair body being connected to the connecting frame, the electric cylinder being connected to the left and right sides of the connecting frame, the connecting block being connected to the electric cylinder near the middle of the connecting frame, two connecting blocks being arranged, the supporting rod being connected to the lower side of the connecting block away from the middle of the connecting frame, the supporting block being connected to one end of the supporting rod away from the connecting block, the rubber block being connected to the top of the supporting block, the rubber block being in the shape of a cylinder, the gyroscope being connected to the rear side of the bottom of the wheelchair body, the single-chip microcomputer being connected to the rear side of the bottom of the wheelchair body, the single-chip microcomputer being electrically connected to the electric cylinder, and the single-chip microcomputer being electrically connected to the gyroscope.

[0007] Preferably, the anti-toppling assembly is arranged to control the electric cylinder through the single-chip microcomputer when the wheelchair body tilts to the left and right sides and exceeds the safe angle of the gyroscope, the connecting block is quickly retracted by the electric cylinder, the supporting rod is pushed outwards, the supporting block is moved by the supporting rod, the rubber block on the supporting block contacts the ground, the function of preventing toppling is realized, and the safety is improved, so as to solve the problem that the existing electric wheelchair may tip over due to unstable center of gravity when encountering steep slopes, obstacles, sudden acceleration or braking during driving, and many models are not equipped with emergency anti-toppling function, which may cause users to lose balance in emergency situations and increase the risk of falling and injury.

[0008] Preferably, the rear end of the wheelchair body is connected to the left and right sides of the auxiliary block, and the auxiliary block is arranged in two.

[0009] Preferably, a plurality of grooves are arranged at equal intervals at the rear end of the auxiliary block, and a movable rod is movably connected to the inside of the grooves.

[0010] Preferably, a threaded groove is arranged at the left and right ends of the movable rod, and a threaded ring is threadedly connected to the outer end of the threaded groove.

[0011] Preferably, a non-slip pad is connected to the middle of the movable rod, and the non-slip pad is movably connected to the auxiliary block.

[0012] Preferably, a protective sleeve is wrapped around the outer end of the movable rod, and the protective sleeve is made of rubber.

[0013] Preferably, a hook is movably connected to the left and right sides of the outer end of the movable rod, and the hook is arranged in two.

[0014] The utility model has the advantages of:

[0015] 1. By setting the anti-inclination assembly, when the wheelchair body tilts to the left and right sides, the safety angle of the gyroscope is exceeded, the single-chip microcomputer controls the electric cylinder, the electric cylinder drives the connecting block to retract quickly, thereby pushing the supporting rod outward, the supporting rod drives the supporting block to move, and the rubber block on the supporting block contacts the ground, thereby realizing the function of preventing tilting and improving safety, so as to solve the problem that the existing electric wheelchair may tip over due to unstable center of gravity when encountering steep slopes, obstacles or sudden acceleration or braking during driving, however, many models are not equipped with emergency anti-inclination function, resulting in that the user may lose balance in an emergency, increasing the risk of falling and injury. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the electric wheelchair with the anti-inclination function is shown.

[0017] Figure 2 A three-dimensional structure schematic diagram of the electric wheelchair with the anti-inclination function is shown.

[0018] Figure 3 A three-dimensional structure schematic diagram of the electric wheelchair with the anti-inclination function is shown.

[0019] Figure 4 A three-dimensional structure schematic diagram of the electric wheelchair with the anti-inclination function is shown.

[0020] Explanation of reference signs: 1, wheelchair body; 21, connecting frame; 22, electric cylinder; 23, connecting block; 24, supporting rod; 25, supporting block; 26, rubber block; 27, gyroscope; 28, single-chip microcomputer; 31, auxiliary block; 32, groove; 33, movable rod; 34, threaded groove; 35, threaded ring; 36, non-slip pad; 37, protective sleeve; 38, hook. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings and examples.

[0022] Please refer to Figures 1-4The utility model provides an embodiment: a kind of electric wheelchair with anti-toppling function, including wheelchair main body 1;Further including anti-inclination component, the bottom of wheelchair main body 1 is provided with anti-inclination component, and anti-inclination component includes connecting frame 21, electric cylinder 22, connecting block 23, support rod 24, support block 25, rubber block 26, gyroscope 27 and single-chip microcomputer 28, the lower end of wheelchair main body 1 is connected with connecting frame 21, and the inside left and right sides of connecting frame 21 are connected with electric cylinder 22, and connecting block 23 is connected with electric cylinder 22 close to the middle position of connecting frame 21, and connecting block 23 is provided with two, and support rod 24 is connected to the lower side of the middle position of connecting frame 21 away from connecting block 23, and support block 25 is connected to the end of support rod 24 away from connecting block 23, and rubber block 26 is connected to the top of support block 25, and rubber block 26 is cylindrical, and gyroscope 27 is connected to the bottom rear side of wheelchair main body 1, and single-chip microcomputer 28 is connected to the bottom rear side of wheelchair main body 1, and single-chip microcomputer 28 is electrically connected with electric cylinder 22, and single-chip microcomputer 28 is electrically connected with gyroscope 27, by setting anti-inclination component, when wheelchair main body 1 is toppling to left and right sides, when exceeding the safety angle of gyroscope 27, it will be controlled by single-chip microcomputer 28 electric cylinder 22, and electric cylinder 22 drives connecting block 23 to be quickly stored, so that support rod 24 is pushed outwards, and support rod 24 drives support block 25 to move, so that rubber block 26 on support block 25 contacts ground, to realize the function of preventing toppling, improve safety, to solve the problem that the existing electric wheelchair is toppling when meeting steep slope, obstacle or suddenly accelerating, braking during driving, however, many models are not equipped with emergency anti-toppling function, so that user can lose balance in emergency, increase the risk of falling and injury.

[0023] Please refer to Figures 1-4 In the embodiment, the rear ends of the left and right sides of the wheelchair main body 1 are connected with auxiliary blocks 31, the auxiliary blocks 31 are provided with two, the auxiliary blocks 31 are used to assist hanging additional articles, the auxiliary blocks 31 are convenient for the wheelchair to carry articles, a plurality of grooves 32 are evenly arranged at the rear ends of the auxiliary blocks 31, movable rods 33 are movably connected in the grooves 32, the movable rods 33 placed on the grooves 32 can not only hang articles, but also can be used as push rods to push the wheelchair, and the flexibility is improved, threaded grooves 34 are arranged at the left and right ends of the movable rods 33, threaded rings 35 are threadedly connected to the outer ends of the threaded grooves 34, the threaded rings 35 are connected with the threaded grooves 34, so that the movable rods 33 are limited in the grooves 32.

[0024] Please refer to Figures 2-4In the embodiment, the anti-skid pad 36 is connected to the middle of the movable rod 33, and the anti-skid pad 36 is movably connected to the auxiliary block 31. The anti-skid pad 36 is attached to the auxiliary block 31 to increase the friction, thereby further limiting the movable rod 33 in the groove 32 and improving the stability. The outer end of the movable rod 33 is wrapped with the protective sleeve 37 made of rubber. The rubber protective sleeve 37 increases the grip and friction, thereby achieving the anti-skid effect. The hooks 38 are movably connected to the left and right sides of the outer end of the movable rod 33. The hooks 38 are provided in two. The hooks 38 can hang the articles, thereby improving the portability.

[0025] When the wheelchair body 1 is tilted to the left and right sides, and the safety angle of the gyroscope 27 is exceeded, the electric cylinder 22 is controlled by the single-chip microcomputer 28. The electric cylinder 22 drives the connecting block 23 to be quickly retracted, thereby pushing out the supporting rod 24. The supporting rod 24 drives the supporting block 25 to move, so that the rubber block 26 on the supporting block 25 contacts the ground, thereby achieving the function of preventing the tilting and improving the safety. The movable rod 33 is placed on the groove 32. The anti-skid pad 36 is attached to the auxiliary block 31 by screwing the threaded ring 35 with the threaded groove 34, thereby limiting the position of the movable rod 33. The articles can be hung on the hooks 38. The rubber protective sleeve 37 increases the grip and friction, thereby achieving the anti-skid effect. The multiple grooves 32 can adjust the height of the movable rod 33, thereby improving the flexibility.

[0026] Through the above steps, by setting the anti-tilting assembly, when the wheelchair body 1 is tilted to the left and right sides, and the safety angle of the gyroscope 27 is exceeded, the electric cylinder 22 is controlled by the single-chip microcomputer 28. The electric cylinder 22 drives the connecting block 23 to be quickly retracted, thereby pushing out the supporting rod 24. The supporting rod 24 drives the supporting block 25 to move, so that the rubber block 26 on the supporting block 25 contacts the ground, thereby achieving the function of preventing the tilting and improving the safety. The anti-skid pad 36 is attached to the auxiliary block 31 by screwing the threaded ring 35 with the threaded groove 34, thereby limiting the position of the movable rod 33. The articles can be hung on the hooks 38. The rubber protective sleeve 37 increases the grip and friction, thereby achieving the anti-skid effect. The multiple grooves 32 can adjust the height of the movable rod 33, thereby improving the flexibility.

Claims

1. An electrically powered wheelchair vehicle with anti-tipping function, comprising a wheelchair body (1); characterized in that: Also include anti-tilt assembly, the bottom of the wheelchair body (1) is provided with anti-tilt assembly, anti-tilt assembly includes connecting frame (21), electric cylinder (22), connecting block (23), support rod (24), support block (25), rubber block (26), gyroscope (27) and single-chip microcomputer (28), the lower end of the wheelchair body (1) is connected with connecting frame (21), the left and right sides of the inside of connecting frame (21) are connected with electric cylinder (22), the electric cylinder (22) is connected with connecting block (23) near the middle position of connecting frame (21), the connecting block (23) is provided with two, the lower side of the connecting block (23) away from the middle position of connecting frame (21) is connected with support rod (24), the one end of support rod (24) away from connecting block (23) is connected with support block (25), the top of support block (25) is connected with rubber block (26), rubber block (26) is cylindrical, the bottom rear side of wheelchair body (1) is connected with gyroscope (27), the bottom rear side of wheelchair body (1) is connected with single-chip microcomputer (28), single-chip microcomputer (28) is electrically connected with electric cylinder (22), single-chip microcomputer (28) is electrically connected with gyroscope (27).

2. The electrically powered wheelchair with anti-toppling function according to claim 1, characterized in that: The rear end of the wheelchair body (1) is connected with auxiliary block (31), and the auxiliary block (31) is provided with two.

3. The electrically powered wheelchair with anti-toppling function according to claim 2, characterized in that: The rear end of the auxiliary block (31) is provided with a plurality of grooves (32) at equal intervals, and the inside of the groove (32) is movably connected with the movable rod (33).

4. The electrically powered wheelchair with anti-toppling function according to claim 3, characterized in that: The left and right ends of the movable rod (33) are provided with threaded grooves (34), and the outer end of the threaded groove (34) is threadedly connected with the threaded ring (35).

5. The electrically powered wheelchair with anti-toppling function according to claim 4, characterized in that: The threaded ring (35) is connected with the anti-skid pad (36) near the middle position of the movable rod (33), and the anti-skid pad (36) is movably connected with the auxiliary block (31).

6. The electrically powered wheelchair with anti-toppling function according to claim 5, characterized in that: The outer end of the movable rod (33) is wrapped with a protective sleeve (37), and the protective sleeve (37) is made of rubber material.

7. The electrically powered wheelchair with anti-toppling function according to claim 6, characterized in that: The outer end of the movable rod (33) is movably connected with the hook (38), and the hook (38) is provided with two.

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