CN110745167A

CN110745167A - Electric stair climbing vehicle rotary leg with horizontal thrust

Info

Publication number: CN110745167A
Application number: CN201910474294.4A
Authority: CN
Inventors: 费永海
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-10
Filing date: 2019-05-31
Publication date: 2020-02-04
Also published as: CN109017887A

Abstract

The invention relates to an electric stair climbing vehicle, which adds horizontal propelling force and relates to an innovative structure of two end parts of two rotating legs of the stair climbing vehicle. The end of the rotating leg is provided with a soft rubber roller wheel with a nylon or metal hub, the outer circle of the hub is provided with a hole, and a stop screw is arranged in the hole corresponding to the left long side plate and the right long side plate, so that the roller wheel can not rotate. When the rotating legs rotate backwards in the horizontal direction, the gripping force on the ground is generated, and the forward propelling force is generated on the vehicle (see the attached figure 1 in the specification).

Description

Electric stair climbing vehicle rotary leg with horizontal thrust

A technical field

The invention relates to a rotating leg (or a supporting arm) of a two-wheel type electric stair climbing vehicle, as shown in figure 1.

Second, technical background

The end parts of the rotating legs of the existing two-wheel type electric stair climbing vehicle are of rolling structures, all the two-wheel type electric stair climbing vehicle adopts pure colloid rollers and has no horizontal thrust.

Third, the invention

The invention installs soft rubber rollers (figure 2: 4.1, 4.11, 4.2, 4.21) with hubs with the diameter of about 80mm at the two end parts of the rotating legs. The distance between the left and right long side plates which are matched with the new wheel and the diameter of the shaft hole are designed. The hub is made of hard materials such as nylon or metal. A hole with the diameter of 6.1 mm or 8.1mm is drilled on the outer circle of the hub, a corresponding M6 or M8 screw is inserted into the hole with the diameter of 7 mm or 9mm corresponding to the left long side plate and the right long side plate (figure 2: 2.1 and 2.2), and the hole is fixed by a self-locking nut (figure 2: 6.1 and 6.2), so that the rubber wheel can not rotate. If the diameter of the new roller is smaller than 80mm, taking an M6 rotation stopping screw; if the diameter is larger than 80mm, taking M8 rotation stop screws, wherein the diameter of all drilled holes corresponds to the used screws. When the rotating legs rotate in the horizontal direction, the grip force of the rubber wheels enables the electric stair climbing vehicle to generate horizontal thrust.

Description of the drawings

FIG. 1: the rotating leg with horizontal thrust works schematically.

FIG. 2: the invention relates to a structure diagram of a rotating leg.

FIG. 3: the invention discloses a schematic view of mounting a rotary leg on the belly of a stair climbing vehicle.

Detailed description of the preferred embodiments

As shown in figure 1, when a user pulls the handle (5) to lean on the stairs, the power supply is turned on, the rollers at the end parts of the rotating legs are turned to take the steps, and the user starts to climb the stairs. When the roller rotates from A to B, the whole vehicle climbs, and the rotating leg structure and the end structure of the invention have no influence on climbing; when the roller wheel rotates from the position B to the position C, the roller wheel can not roll, so that the ground can be grabbed, when the rotating legs rotate backwards, forward thrust F is generated on the gravity center P of the vehicle, and the whole vehicle can be pushed forwards. The operator does not need to pull the cart, and the pushing force in the forward horizontal direction is achieved. Climb higher floor, can effectively save operator's physical power, be favorable to follow-up strong physical power operation.

Name of label

FIG. 1:

1. rotating legs 1.1, 1.2 soft rubber idler wheels (nylon or metal wheel hubs) 2, turbine boxes 3, main wheels (two) of stair climbing vehicle 4, vehicle frame 5, vehicle handle 6, motor 7, lithium battery 8, electric box 9, baffle 10, stairs

P: weight object

A1.1, B1.1, C1.1: 1.1 rollers in different rotational positions.

FIG. 2:

1. center shaft 1.1 center through hole 1.2 key groove 2.1 left long side plate 2.2 right long side plate 3.1 upper reinforcing plate

3.2 lower reinforcing plate 4.1 upper roller 4.11 upper hub 4.2 lower roller

4.21 self-locking nuts for roller wheel 5.1, 5.2 roller bolt shaft 5.11, 5.21 self-locking nut 6.1, 6.2 rotation-stopping screw 6.11, 6.21

FIG. 3:

1.1 left central shaft 1.2 right central shaft 1.3 penetrating double-head long screw 2.1, 2.2 left and right rotating leg 2.11, 2.21 self-locking nut 2.12, 2.22 large gasket 3.1, 3.11, 3.2, 3.21 rubber roller 3.101, 3.111 roller hub 4 turbine box 4.1 motor connecting seat

Claims

1. The core part of the invention is an innovative structure of two end parts of the rotating legs, the invention adopts a soft rubber wheel with hubs and good ground gripping force, the soft rubber wheel can not rotate by penetrating screws, the ground gripping force of revolution of the soft rubber wheel can generate horizontal thrust to the stair climbing vehicle, and the invention requires patent protection.

2. In the end part structure, the diameter of the soft rubber wheel is about 80 mm; the hub is made of nylon or metal. Only the size and the material of the wheel are changed, and the end structure of the rotating leg is not changed, so that the protection of the patent is still required.

3. The left and right side plates of the rotating leg are wedge-shaped, and can also take other shapes, and the rotating leg is still required to be protected by the patent as long as the end part structure is not changed.