CN203819450U - Novel labor foot-operated power device - Google Patents

Abstract

The utility model provides a novel labor foot-operated power device. When two cranks of a foot-operated device of a common labor cart are in vertical directions, feet force application is difficult upon an uphill or a bad road condition. To solve the above problem, two original pedals are changed into pulleys; each pulley is provided with a slide rod containing a fixed rotating shaft on the back part; the other end of each slide rod is provided with the original pedal; up and down reciprocate motion is conducted when the new pedals are operated by a user, so forward circular motion can be realized for the cranks; for an action of each slide rod from up to bottom, the crank is driven to rotate about 210 degree; with such circulation, as long as the feet work in a fixed range, the cart can quickly move forward and a problem of force application difficulty is avoided; and therefore, labor is saved and a purpose of speeding up or loading weight increase is achieved. The novel labor foot-operated power device can be arranged on a labor two-wheeled cart and a tricycle; and the novel labor foot-operated power device can work as a labor power device to replace walking and carry objects.

Description

Manpower cycle pedal power set

One, technical field:

This patent is a kind of Manpower cycle pedal power set, can be applicable to that manpower two is taken turns, on three-wheel vehicle, rides instead of walk, the manpower engine installation of loading or body-building.

two, background technology:

At present general rickshaw pedal power set, is foot-operated two pedals of people, and masterpiece drives it to circle for two cranks, and crank rotates in the process of a week, and the application force that only has half-turn is power.In this half-turn, the length of crank is constant, the size of pedal force also changes not quite, but the moment that masterpiece produces for crank is to return minimal value from a minimal value to maximum, when two cranks are during at vertical direction, moment is just almost nil, namely approximate dead point, in this left and right, dead point, people's pedal force major part is flogging a dead horse.

three, summary of the invention:

When making people's pedal man car, do less or do not flog a dead horse, under the condition of larger torque, work as far as possible.This patent provides a kind of improvement type Novel pedal engine installation, and this device is made up of frame, an axis, two cranks, two pulleys, two slide bars.Original two pedals are all changed into pulley, on two pulleys, there is the slide bar of fixed rotating shaft at rear portion of each overlap joint, the other end of slide bar is installed footstool, steps on new footstool slide bar is pumped, and just can make crank make circular movement forward, and slide bar is moved once from the top down, the crank driving rotates 210 ° of angles, so moves in circles, and car just can advance fast, reach laborsaving, fast or increase the object of load carrying ability.

The foot pedal apparatus of Manpower cycle is assembled by frame (1), an axis (2), two cranks (3), two pulleys (4), two slide bars (5).Axis (2) is arranged in frame (1), axis (2) connects two cranks (3), the other end of crank (3) is installed pulley (4), pulley (4) coordinates with slide bar (5), and two slide bars (5) are connected on a fixed rotating shaft of frame.

The full swing scope of slide bar (5) is 30 °.

The length of slide bar (5) is 5 times of crank (3) length, and the distance of axis (2) and fixed rotating shaft is 4 times of crank length.

It is 210 ° that crank (3) turns over angle.

The beneficial effect of the utility model manpower pedal engine installation is:

1, starting freely: when starting, a pin is stepped on slide bar downwards, and car just can advance, because the hunting range of slide bar is about 30 °, crank in the time of vertical direction, slide bar be just positioned at extreme higher position with horizontal surface into about 15 ° of angles, slide bar has lengthened the arm of force simultaneously, so easily laborsaving.

2, corner is large: because slide bar has fixed rotating shaft, every motion from top to bottom angle of cut is once about 30 °, so a slide bar driving crank from first dead center to lower dead point, will make crank rotate approximately 210 ° of angles.

3, the process that has both feet simultaneously to drive, the every rotation one of crank is enclosed, two slide bars do one time crank motion in the region of approximately 30 °, in this region, upper slide bar is in the time of dead point, drop shot must also have the very long driving arm of force, and lower sheave has again inertia, upper boom is crossed behind dead point, will drive by two bars at once, turn after 30 °, drop shot is to dead point, the upper slide bar arm of force is very long again, from then on after single pole drives 150 °, former lower beam has been raised to first dead center, former upper boom is in the lower application of force inertia district that has equally 30 °, this region of 30 ° is also that two bars drive, to dead point, former upper boom completes 210 ° and drives corner, this stylish upper boom has also turned over 30 ° of angles, after single pole drives 150 ° again, become again two bars to drive, repeat itself in endless cycles.

4, there is no dead point: because corner is large, 30 ° of regions that crank often turns around and has two both feet to exert oneself simultaneously, are just equivalent to not have dead point.

5, the arm of force lengthens: slide bar always rides on pulley, is equivalent to the arm of force of crank to be lengthened to maximum.

four, brief description of the drawings:

Accompanying drawing is the front view of Manpower-driven pedal power set, and as shown in drawings, this manpower pedal device is assembled by frame 1, axis 2, two cranks 3, two pulleys 4, two slide bars 5.In the time that masterpiece is used for pedal, rotate by pulley driving crank.Wherein, axis 2 is arranged in frame 1, and axis 2 connects two cranks 3, and the other end of crank 3 is installed pulley 4, and pulley 4 coordinates with slide bar 5, and two slide bars 5 are connected on a fixed rotating shaft of frame.

five, detailed description of the invention:

[0016] slide bar must be able to sustain the curved power that pedal produces, guarantee again to produce the sufficiently long arm of force, through research, slide bar length is that 5 times of crank length are most suitable, the distance of rotating shaft and axis is 4 times of crank length, make like this maximum angle of two slide bars be about 30 °, slide bar is overlapped on pulley top separately, new crank shaft is parallel with advancing slip wheel shaft in the time that slide bar is parallel with crank, pulley should with bearing fit, guarantee resistance minimum, between rotating shaft and machine frame hole, adopt free-running fit, ensure not turn round, rotate nimbly and freely, do not increase resistance.

Claims (4)

1. a Manpower cycle pedal power set, in device, assembled by frame (1), an axis (2), two cranks (3), two pulleys (4), two slide bars (5), it is characterized in that: axis (2) is arranged in frame (1), axis (2) connects two cranks (3), the other end of crank (3) is installed pulley (4), pulley (4) coordinates with slide bar (5), and two slide bars (5) are connected on a fixed rotating shaft of frame.

2. Manpower cycle pedal power set according to claim 1, is characterized in that: the full swing scope of slide bar (5) is 30 °.

3. Manpower cycle pedal power set according to claim 2, is characterized in that: the length of slide bar (5) is 5 times of crank (3) length, and the distance of axis (2) and fixed rotating shaft is 4 times of crank length.

4. Manpower cycle pedal power set according to claim 3, is characterized in that: it is 210 ° that crank (3) turns over angle.