CN201337599Y - Electric walking assistant vehicle capable of moving on stairs - Google Patents

Abstract

The utility model relates to an electric scooter, in particular to an electric scooter capable of going up and down stairs driven by a motor through a worm gear mechanism. The chair and the frame are hinged by a rotary joint. The front end of the seat is equipped with a steering wheel, and an electrical operation panel is installed on the steering wheel. The steering wheel and the joystick are fixed together. The joystick and the seat form a rotational joint hinge. Its traveling mechanism includes: wheels, blades with an external incomplete gear structure and incomplete gears with an internal gear structure, wherein: the worm gear is fixed on the outside of the wheel and coaxial with it, the worm meshes with the worm gear, and the wheel and shaft are The rotating pair is hinged, the two blades are installed on the outside of the worm wheel, and the included angle is 180°. The blade and the wheel are hinged as a rotating pair. The blade and the gear form an external incomplete gear mesh, and the gear and the gear are meshed. The gear is fixed on the shaft. The gears are coaxial with the wheels.

Description

Electric scooter that can go up and down stairs

technical field

The utility model relates to an electric scooter, in particular to an electric scooter capable of going up and down stairs driven by a motor through a worm gear mechanism, and belongs to the technical field of mechanical processing.

Background technique

The current common electric scooter can only walk on flat roads, and cannot go up and down stairs, which brings inconvenience to the life of the elderly and the disabled, and increases the burden on the accompanying staff. In daily life, the transportation of bulky goods upstairs and downstairs mainly depends on manpower, which is also very inconvenient.

Contents of the invention

The purpose of this utility model is to overcome the shortcomings of the above-mentioned prior art, and provide an electric scooter that can go up and down stairs driven by a motor through a worm and worm gear mechanism. Under the current stair structure, the user can drive the car alone to complete the movement up and down the stairs, and can keep the seat surface parallel to the ground during the movement.

The utility model is realized by the following technical scheme: an electric scooter capable of going up and down stairs, the whole vehicle has an up and down structure, which includes: the upper part is a seat, the lower part is a vehicle frame, and the seat and the vehicle frame are hinged by rotating joints. The front end of the seat is equipped with a steering wheel, and an electric operation panel is installed on the steering wheel. The steering wheel and the joystick are fixed together. The mechanism includes: a wheel, a blade with an external incomplete gear structure and an incomplete gear with an internal gear structure, wherein: the worm wheel is fixed on the outside of the wheel and is coaxial with it, the worm meshes with the worm wheel, and the wheel and shaft are rotating pairs Hinged, the two blades are installed on the outside of the worm wheel, the angle is 180°, the blade and the wheel are hinged as a rotating pair, the blade and the gear form an external incomplete gear mesh, the gear and the gear are meshed, the gear is fixed on the shaft, the gear and The wheel is coaxial, and on the other side of the wheel, there is also a set of the same structure composed of parts blades and gears, except that the angle between the two blades on this side and the two blades on the other side is 90°, and the motor transmits power through the wheel , the shaft and the frame are hinged by a revolving joint.

The bottom of the front half of the seat and the top of the front half of the frame are hinged by two left and right rack-type support rods, the support rod and the rocker are connected by a moving pair, and the rocker and the frame are hinged by a rotating pair. The rockers on the left and right sides of the frame are fixedly connected together through the connecting plate. The motor is installed on the connecting plate. The motor transmits the power to the gear through the meshing transmission of the worm and the worm gear. It is a rotary joint hinge, and the rack-type support rod and the two rollers are rolling friction.

The front wheel and the rear wheel on the same side of the electric scooter are driven by an electric motor through the same worm gear mechanism.

The utility model has the advantages that the electric scooter of this structure is an electric scooter driven by a motor through a worm gear mechanism and can go up and down stairs. The movement of going up and down the stairs does not require human operation, and the seat surface can be kept parallel to the ground during the movement, so the operation is simple, which greatly facilitates the travel of users and improves their self-care ability in life.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail;

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the transmission system diagram of the wheel blade telescoping mechanism of the present utility model;

Fig. 3 is a schematic diagram of the blade structure of the utility model with an outer incomplete gear structure;

Fig. 4 is a schematic diagram of an incomplete gear with an internal gear structure of the present invention;

In the figure: 1, seat, 2, steering wheel, 3, electric control operation panel, 4, joystick, 5, idler wheel, 6, vehicle frame, 7, support rod, 8, shaking block, 9, gear, 10, Roller, 11, shaft, 12, worm gear, 13, worm, 14, motor, 15, connecting plate, 16, wheel, 17, blade, 18, gear, 19, gear, 20, worm gear, 21, worm, 22, shaft , 23, gear, 24, gear, 25, motor, 26, wheel, 27, motor, 28, battery, 29, travel switch, 30, travel switch, 31, photoelectric sensor, 32, photoelectric sensor, 33, controller.

Detailed ways

As shown in the figure: the motor 25 transmits the power to the gear 18 through gear meshing transmission, and the outer incomplete gear of the gear 18 and the blade 17 with the outer incomplete gear structure form an incomplete gear meshing transmission. In this way, the forward and reverse rotation of the motor 25 is used Realize the extension and contraction of blade 17. When going upstairs or downstairs, the photoelectric sensor 31 sends a signal to the controller 33, the motor 25 starts, the blade 17 stretches out, and when it is in place, the travel switch 29 sends a signal to the controller 26, the motor 25 realizes electromagnetic braking, and the blade 17 stops turn. Simultaneously, by utilizing the characteristics of the incomplete gear and the locking arc of the outer incomplete gear of the blade 17, the blade can be self-locked in the process of going up and down stairs, thereby achieving the purpose of double braking. When reaching flat road, photoelectric sensor sends signal, and motor 25 reverses, and blade 17 shrinks, and after putting in place, travel switch 30 sends braking signal, and motor 25 electromagnetic brakes, and stops rotating. The blades of the front wheel group and the blades of the rear wheel group are respectively controlled by an electric motor, and the working principle is the same. There are two vanes 17 distributed at 180° on both sides of the wheel 16. The advantage of this distribution is that the locking arcs of 17 and 18 are longer, which makes the self-locking of the vanes 17 more reliable. In addition, the vanes 17 can have sufficient The space retracts to the inner side of the rim of the wheel 16, which does not affect its rotation on a flat road. The power of wheel 16 and wheel 26 is supplied by motor 27 through the worm drive that is made up of worm screw 21 and worm gear 20, and promptly the rotation of front and back wheel of scooter is driven by a motor. When the scooter goes up and down the stairs, the seat 1 must be kept parallel to the ground. The lifting mechanism is composed of a rocker 8, a gear 9, a rack 7 and a roller 10. 7 forms a rolling high-pair contact, so that the rack 7 can move up and down freely under the drive of the gear 9, the rocker 8 and the vehicle frame 6 form a rotating pair hinge, and the upper end of the rack 7 and the seat 1 are hinged as a rotating pair. The rocking blocks on the left and right sides of the vehicle frame 6 are connected into one body by the connecting plate 15, the motor 14 is installed on the connecting plate 15, and the shaft 22 and the connecting plate 15 are hinged for a rotary pair. Gear 9 is driven by electric motor 14 through worm screw 13, worm gear 12, like this, can utilize the self-locking characteristic of worm drive, after seat 1 rises to put in place, motor stalls, reduces the required braking force that keeps seat and does not descend.

Claims (3)

1, a kind of electric bicycle of energy stair activity, car load is a up-down structure, it comprises: top is seat (1), be vehicle frame (6) below, seat (1) and vehicle frame (6) are that revolute pair is hinged, the front end installation direction dish (2) of seat (1), steering wheel (2) is gone up electric operation panel (3) is installed, steering wheel (2) is fixed together with stick (4), stick (4) is hinged with seat (6) formation revolute pair, a pair of idle wheel (5) is installed in stick (4) lower end, it is characterized in that: the walking mechanism of electric bicycle comprises: wheel (16), have the blade (17) of outer partial gear structure and have the partial gear (18) of inner gear structure, wherein: worm gear (19) is packed in the outside of wheel (16), and it is coaxial with it, worm screw (21) and worm gear (19) engagement, wheel (16) is that revolute pair is hinged with axle (22), two blades (17) are installed in the outside of worm gear (19), angle is 180 °, blade (17) is that revolute pair is hinged with wheel (16), blade (17) constitutes outer partial gear engagement with gear (18), gear (18) is engagement with gear (19), gear (19) is installed on the axle (22), gear (19) is coaxial with wheel (16), opposite side at wheel (16) also has a cover and part (17), (18) the identical structure of forming with (19), just the angle of two blades of two blades of this side and other side is 90 °, motor (25) is passed to gear (19) with power by gear (24) and gear (23), and axle (22) is that revolute pair is hinged with vehicle frame (6).

2, the electric bicycle of a kind of energy stair activity according to claim 1, it is characterized in that: it is hinged that two rack type support bars (7) form revolute pair about top the passing through of following and vehicle frame (6) first half of described seat (1) first half, support bar (7) is connected for moving sets with swinging block (8), swinging block (8) is that revolute pair is hinged with vehicle frame (6), the swinging block (8) of vehicle frame (6) left and right sides is fixed together by connecting plate (15), motor (14) is installed on the connecting plate (15), motor (14) is by worm screw (13), turbine (12) engaged transmission is passed to gear (9) with power, gear (9) and rack type support bar (7) engagement, two rollers (10) are that revolute pair is hinged with swinging block (8), and rack type support bar (7) is rolling friction with two rollers (10).

3, the electric bicycle of a kind of energy stair activity according to claim 1 is characterized in that: the front vehicle wheel of described electric bicycle homonymy (16) is driven by identical worm screw (21) worm gear (20) mechanism by a motor with rear wheel (26).

Images