CN113071592A

CN113071592A - Small-size instrument of riding instead of walk in city based on user experience

Info

Publication number: CN113071592A
Application number: CN202110549712.9A
Authority: CN
Inventors: 金信琴; 黄莹
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-07-06

Abstract

The invention discloses a small-sized urban transportation tool based on user experience, which comprises a front wheel, a front fork, a handlebar, a frame, a rear wheel, a rotating shaft, a pedal plate and a driving mode of converting linear reciprocating motion into rotary motion. The rotating shaft is rotatably connected with the frame, and the rear wheel is fixedly connected on the rotating shaft. The driving method comprises the following steps: the left side and the right side of the rotating shaft are provided with a ratchet mechanism for resetting and idling, a wire spool for winding the inhaul cable, the inhaul cable for pulling the ratchet mechanism and a coil spring for automatically resetting and winding the inhaul cable. The transmission mechanism has no pressure angle and is added with the self weight of the human body, so that the work doing efficiency is very high. The novel bicycle can present a novel riding feeling through a novel structure, the feet stand, and any foot can be lifted in situ and then stepped down conveniently, the foot can be stepped when lifted and lifted, the feet can be stepped alternately, the feet can be stepped continuously, and the novel bicycle is very convenient and comfortable as desired.

Description

Small-size instrument of riding instead of walk in city based on user experience

Technical Field

The invention relates to a driving mode for converting linear reciprocating motion into rotary motion, in particular to a small urban mobility tool based on user experience.

Background

Along with the development of economy, private cars are increasingly popularized, and a series of problems such as environmental pollution, traffic jam, petroleum resource waste, parking difficulty and the like are increasingly highlighted, so that a light and fast vehicle is required to meet the short-distance transportation requirement of people.

However, with the implementation of the no-friction electricity-limiting command in many cities (expert analysis is available, which may cause the simulation of two-three line cities), the storage and charging of the electric vehicle is inconvenient, the battery is polluted, the bicycle is laborious and inconvenient to carry, and the safety performance of light tools such as balance cars, unicycles and electric scooters is poor, so that the users are prohibited to go on the road, and therefore, no ideal light short-distance travel-replacing tool exists. Although the bicycle is a green and environment-friendly vehicle, from the history of the bicycle, a constant pedal drives a chain wheel to do the best acting point of circular motion through a crank, and only rotates to an arc section which is approximately one fourth of the circumference of the front part above a wheel disc, so that the acting efficiency is low; the portable folding bicycle is inconvenient to carry, and the size effectively reduced is not ideal even if the folding bicycle is transformed in the later stage.

Therefore, in the face of the crowded and environmentally unfriendly traffic conditions today, a need exists for a lightweight and portable vehicle to serve people's daily lives.

Disclosure of Invention

The invention provides a small-sized urban transportation tool based on user experience, which is extremely small in size and convenient to carry, and can be used for getting on and off an elevator, taking a subway and the like without folding. Through new structure, can present new sensation of riding, when riding, both hands are holding up the handlebar, and both feet stand on the scooter with the posture of standing, when power is not enough, about the foot random normal position lift up down again can, the foot lifts highly in certain extent, raises and lifts the end and can all step on, can step on in turn by both feet, also can single foot continuously step on, can step on together by both feet even, follow one's mind, how step on can, very convenient comfortable. The driving mode of the invention has no pressure angle, has very high work efficiency, and utilizes the self weight of the human body to apply force to the upper and lower straight paths of the foot pedal, thereby saving labor.

The invention relates to a small-sized urban transportation tool based on user experience, which comprises a front wheel, a front fork, a handlebar, a frame, a rear wheel, a rotating shaft, a pedal plate and a driving mode of converting linear reciprocating motion into rotary motion. The rotating shaft can be rotatably connected with a rear fork on the frame in a free rotating manner, and the rear wheel is fixedly connected on the rotating shaft. The driving method comprises the following steps: the left side and the right side of the rotating shaft are provided with a ratchet mechanism for resetting and idling, a wire spool for winding the inhaul cable, the inhaul cable for pulling the ratchet mechanism and a coil spring for automatically resetting and winding the inhaul cable. The inner ring of the ratchet mechanism is fixedly connected to the rotating shaft, the outer ring of the ratchet mechanism is fixedly connected with a wire spool, one end of the inhaul cable is fixedly connected with the wire spool and wound with a plurality of coils on the wire spool, the other end of the inhaul cable is fixedly connected with the pedal, and a coil spring for automatically resetting and winding the inhaul cable is connected between the wire spool and the frame.

The invention relates to a small-sized urban transportation tool based on user experience, which is characterized in that guide rods are fixedly arranged on two sides of a frame in order to enable a pedal plate to do reciprocating linear motion in a fixed path, and the pedal plate is connected with the guide rods on the frame in a sliding manner.

And a fixed pulley is fixedly arranged above the guide rod, and the inhaul cable is wound around the fixed pulley and used for changing the direction of the inhaul cable.

An adjustable and movable positioning pin is also arranged above the guide rod to control the rising height of the pedal.

A pedal support fixedly connected with the frame is further installed below the pedal, the pedal support bears the weight of a human body and the bumping force during riding after the pedal works, and a shock pad can be additionally arranged on the pedal support.

Stay cable one end rigid coupling wire reel and winding a plurality of circles are installed ratchet between wire reel and the pivot on the wire reel, pivot and frame rotatable coupling: the wire spool, the ratchet mechanism and the rotating shaft share a circle center. When the inhaul cable wound on the wire spool is pulled out, the wire spool can make circular motion around the circle center; when the wire spool is reversed, the inhaul cable can be wound on the wire spool.

In order to keep the pedal at the initial position to be driven at the top end of the guide rod, the winding number of turns of the stay cable on the wire spool is adjusted, the stay cable is pulled out for a certain distance, a coil spring between the wire spool and the frame generates certain resilience force and then is fixedly connected with the pedal, and the pedal is kept at the top end of the guide rod by the elasticity of the coil spring.

When riding, the bicycle is held by two hands to keep balance, the pedal is driven to move downwards along the guide rod under stress, the wire spool and the ratchet mechanism are pulled to rotate through the pull-out inhaul cable to drive the rotating shaft and the rear wheel to rotate forwards, and meanwhile, the coil spring between the wire spool and the bicycle frame is forced to be wound tightly to increase a certain resilience force; the principle that the ratchet mechanism rotates to drive the rear wheel to rotate forward is completely the same as that of the traditional bicycle that the flywheel rotates to drive the rear wheel to rotate forward. When the pedal is loosened, the wire spool is driven to rotate back by the resilience force of the coil spring, the pull rope is automatically wound on the wire spool, the principle that the tape is automatically wound and recovered by the resilience force of the coil spring is completely the same as that of the tape of the automatic tape measure in daily life, and the pedal is pulled to move upwards along the guide rod by the other end of the pull rope due to the recovery and winding of the pull rope; at the moment, the ratchet mechanism arranged between the wire spool and the rotating shaft rotates in an idle mode in the reverse direction and does not drive the rotating shaft and the rear wheel to rotate forward, and the principle is completely the same as that of a chain of a traditional bicycle which rotates in the reverse direction and does not drive the rear wheel to rotate forward. Thus, a continuous drive with a step-reset can be realized.

The left end and the right end of the driving mode of the rotating shaft are respectively and symmetrically provided with the same ratchet wheel mechanism and the same coil

The spring, the wire spool, the inhaul cable and the pedal form two groups of symmetrical driving mechanisms, and by utilizing the principle of reverse idle running of the ratchet mechanism, when the ratchet mechanism on one side rotates to do work, the inner ring and the pawl in the ratchet mechanism on the other side can be driven to rotate only through the rotating shaft, but the outer ring of the ratchet mechanism on the other side cannot be driven to rotate forwards along with the rotating shaft, so that the two groups of driving mechanisms are not interfered with the wire spool, the inhaul cable and the pedal on the other side, the two groups of pedals on the left side and the right side can be stepped to do work in turn on the common rotating shaft, or the two sides do work simultaneously, and the stepping can be.

Through the above description, after the structure is adopted, the small-sized riding tool based on the user experience for the city can stand on both feet during the inertial sliding in the riding process, and the left foot and the right foot can be lifted and trampled at will during the force application. Although any machine does not save power, the urban small-sized travel tool based on user experience provided by the invention applies force to the pedal by stepping on the pedal by the weight of the human body, the weight of the human body is far larger than the stepping force of the human body when the user rides a traditional bicycle, and the transmission mechanism has no pressure angle, so that the work efficiency is very high, and the labor is saved. Because the running-board need not to do circular motion occupation space with traditional bicycle running-board, only need reciprocate, occupation space is little, and at the bottom of the focus when riding, can make the minimum manpower drive car of riding instead of walk of size, whole car length can accomplish the length of shoes and add and turn to the front wheel diameter, handlebar and front fork bracing piece and frame are flexible folding back, because of the bulk size is minimum, convenient to carry about.

Through the above description, the invention is a city small-sized walk-substituting tool based on user experience, which is not seen in the market at present, has the utilization value of the human transportation tool industry, can relieve the crowded traffic condition of the city, relieve the appearance of randomly parking and randomly placing the city on the street, is green and carbon-free for going out, and serves the living needs of people.

Drawings

FIG. 1: the invention discloses a schematic structure diagram of a small city travel tool based on user experience;

FIG. 2 is a drawing: the invention relates to a schematic diagram of a local structure at a rotating shaft of a small urban mobility aid based on user experience;

FIG. 3: the cross-sectional structure of the rotating shaft is schematically shown; FIG. 4 is a drawing: a schematic diagram of a coil spring mounting structure;

FIG. 5: a schematic diagram of the pedal moving downwards to drive the rotating shaft to rotate forwards;

FIG. 6: the spring rebounds to drive the pedal to move upwards for resetting;

FIG. 7: schematic diagrams of the pedals at two sides not interfering with each other;

FIG. 8: the two ends of the rotating shaft are lengthened, and the rotating shaft and the frame are directly and rotatably connected.

Detailed Description

The following describes a small-sized city mobility aid based on user experience in detail with reference to the accompanying drawings. It should be understood that the embodiments described herein are merely for illustrating the invention and are not intended to limit the invention, and the connection sequence described is merely for explaining the structure of the invention and is not intended to be used as a sequential assembly sequence in practical applications.

In the embodiment of the present invention, two ratchet mechanisms, two wire reels, two cables, two coil springs, two guide rods, two fixed pulleys, and two pedals are included, and the components described in the following embodiments may be understood as being either one of the two components or the left and right components, because the connection relationship between the components on both sides and the generated effect are all the same.

The specific implementation mode is as follows: referring to fig. 1 to 4, the rotating shaft 4 is rotatably connected with the frame 1: a fixed shaft 5 is horizontally and fixedly connected on a rear fork of the frame 1, and the rotating shaft 4 can be rotatably connected in a mode of being freely sleeved on the fixed shaft 5; the rear wheel 3 is fixedly connected to the middle part of the rotating shaft 4. The driving mode mounting structure of the rotating shaft 4 is respectively and symmetrically mounted at the two ends of the rotating shaft 4: the inner ring of the ratchet mechanism 7 is fixedly connected on the rotating shaft 4, the outer ring of the ratchet mechanism 7 is fixedly connected with a wire spool 6, one end of a guy cable 8 is fixedly connected with the wire spool 6 and is wound with a plurality of coils on the wire spool 6, the other end of the guy cable is fixedly connected with the pedal 2, one end of a coil spring 9 is fixedly connected with a fixed shaft 5 (simultaneously, the coil spring can also be fixedly connected with a rear fork of the frame, because the fixed shaft and the frame are fixed), and the other end of the coil spring. In order to make the pedal 2 do reciprocating linear motion in a fixed path, guide rods 11 are fixedly arranged on both sides of the frame 1, and the pedal 2 is connected with the guide rods 11 on the frame 1 in a sliding way.

A fixed pulley 15 is fixedly arranged above the guide rod 11, and the pulling cable 8 is wound on the fixed pulley 15 and used for changing the pulling direction of the pulling cable 8.

An adjustable and movable positioning pin 14 is also arranged above the guide rod 11 to control the lifting height of the pedal 2.

A pedal support 13 fixedly connected with the frame 1 is further arranged below the pedal 2, and the pedal support 13 bears the weight of a human body after the pedal 2 applies work and the bumping force during riding.

In order to keep the pedal 2 at the initial position to be driven at the top end of the guide rod, the winding number of turns of the inhaul cable 8 is adjusted, the inhaul cable is pulled out for a certain distance, the coil spring 9 between the wire spool 6 and the fixed shaft 5 generates certain resilience force and then is fixedly connected with the pedal 2, and the pedal 2 is kept at the top end of the guide rod 11 by the elasticity of the coil spring 9.

When riding, both hands hold the handlebar to keep balance, as shown in fig. 5, the pedal 2 on either side of the left and right sides is treaded to move downwards along the guide rod 11 under the stress, the wire spool 6 and the ratchet mechanism 7 are pulled to rotate through pulling out the inhaul cable 8 to drive the rotating shaft 4 and the rear wheel 3 to rotate forwards, and the coil spring 9 is simultaneously stressed and wound tightly to increase a certain resilience force; as shown in fig. 6: after lifting the foot, the wire spool 6 is driven to rotate back by the resilience force of the coil spring 9, the stay cable 8 is automatically wound on the wire spool 6, and the other end of the stay cable 8 simultaneously pulls the pedal 2 to move upwards along the guide rod 11; at this time, the ratchet mechanism 7 installed between the wire spool 6 and the rotating shaft 4 idles in the reverse direction and does not drive the rotating shaft 4 and the rear wheel 3 to rotate forward. Thus, the continuous driving of stepping down, lifting the foot and stepping down can be realized, namely the single-foot continuous stepping of the invention.

In the invention, the ratchet mechanism 7, the coil spring 9, the wire spool 6, the inhaul cable 8, the guide rod 11 and the pedal plate 2 are symmetrically arranged at the left end and the right end of the rotating shaft 4, and the connection modes of the two sides are completely the same, so that two groups of symmetrical driving mechanisms are formed. Referring to fig. 1 and 2 and fig. 7, the arrows indicate: by utilizing the principle of reverse idle running of the ratchet mechanism 7, when the ratchet mechanism 7 on one side rotates to do work, the inner ring and the pawl of the ratchet mechanism 7 on the other side can be driven to rotate only through the rotating shaft 4, but the outer ring of the ratchet mechanism 7 on the other side and the wire winding disc 6 can not be driven to rotate along with the rotating shaft 4, so that the wire winding disc 6, the inhaul cable 8 and the pedal plate 2 on the other side are not interfered with each other, the pedal plates 2 on the left side and the right side can be stepped to do work on the common rotating shaft 4 in turn, or both sides can do work simultaneously, and therefore, the double-pedal stepping can be realized and stepped together.

In the above embodiment, the rotating shaft and the frame are rotatably connected, the rotating shaft is equivalent to a hub of a traditional bicycle, and the fixed shaft is equivalent to a hub core of the hub of the traditional bicycle. The rotary shaft and the frame can be rotatably connected in a mode that a fixed shaft is not used as shown in figure 8, and the rotary shaft 16 with two lengthened ends is directly and rotatably connected with the frame 1.

The rotatable connection of the invention is as follows: the two objects can rotate continuously in 360 degrees relative to each other, and most commonly, the two objects are realized by sleeving ball bearings. The slidable connection of the invention is as follows: two objects are in contact but not fixed and can slide freely relative to each other, and a ball-and-slide connection is generally used.

The principle of the ratchet mechanism is equal to that of the ratchet mechanism: bicycle flywheel, bicycle ratchet, freewheel clutch, one-way bearing.

The invention discloses a coil spring for automatically resetting a winding cable connected between a wire spool and a frame, which is arranged between the wire spool or an outer ring of a ratchet mechanism and the frame or a fixed shaft. The outer ring of the ratchet mechanism is fixedly connected with a wire spool, and the outer ring of the ratchet mechanism and the wire spool act simultaneously, so that one end of the coil spring is connected with the wire spool; the frame and the fixed shaft are fixed, so the other end of the coil spring is connected with the frame.

The spring of the invention can generate resilience force which is larger than the weight of the pedal and the inhaul cable. In practice, the spring force of the coil spring can be reduced by using a light-weight foot pedal.

The small-sized urban transportation tool based on user experience can be additionally provided with an electric drive to form an electric small-sized urban transportation tool based on user experience. The guide rod can also be arranged at the rotating shaft of the rear wheel, and the auxiliary wheel is additionally arranged on the pedal plate to form a monocycle and the like.

The driving mode of the urban small-sized travel tool based on user experience is also suitable for manpower vehicles such as wheelbarrows, two-wheeled vehicles, tricycles, four-wheeled vehicles and electric bicycles, and is also suitable for being additionally provided with seat cushions and the like.

The driving mode of converting the linear reciprocating motion into the rotary motion can also be applied to the required field by the combined action of more than two groups of ratchet mechanisms 7, wire reels 6, inhaul cables 8 and coil springs 9 on the same rotating shaft. Referring to fig. 7, when one of the ratchet mechanisms rotates to apply work, the inner ring and the pawl in the other ratchet mechanism are only driven to rotate by the rotating shaft, and the outer ring of the other ratchet mechanism is not driven to rotate along with the rotating shaft, so that the ratchet mechanisms do not interfere with other wire reels and cables, and the common rotating shaft can be applied with work by any one ratchet mechanism, or alternatively applied with work applied together.

The above description is only used to illustrate the technical solution of the present invention, and not to limit the present invention, and the user experience-based small-sized urban transportation tool of the present invention can have various changes and modifications, and is not limited to the specific structure of the above-mentioned embodiments. In practical application of the wire spool, the stay cable can be directly wound on the ratchet mechanism, the outer ring of the ratchet mechanism is a concave groove or two sides of the ratchet mechanism are additionally provided with circular side plates to facilitate the stay cable to be wound, the coil spring can also be replaced by other elastic elements, guide rods on two sides can be arranged side by side or front and back, the guide rods and the pedal plate can be connected in a sliding mode through linear sliding bearings or round inlaid balls or the side surfaces of the guide rods can be in contact rolling through rollers, and the like, and the driven rotating shaft can be arranged at other places coaxial with the rear wheel and is in transmission connection with the rear wheel through transmission parts such.

Claims

1. The utility model provides a straight reciprocating motion converts rotary motion's drive mode into which installs two sets or more than two sets on same pivot: the reset idle ratchet mechanism (7) is used for winding a wire spool (6) of the inhaul cable, and pulling the inhaul cable (8) of the ratchet mechanism to enable the inhaul cable to automatically reset a wound coil spring (9).

2. The utility model provides a small-size instrument of riding instead of walk in city based on user experience, includes front wheel, front fork, handlebar, frame, running-board, rear wheel, pivot and frame rotatable coupling, the rear wheel rigid coupling is in the pivot, and the left and right sides all installs on pivot (4) of its characterized in that rear wheel (3): the reset idle ratchet mechanism (7) is used for winding a wire spool (6) of the inhaul cable, and pulling the inhaul cable (8) of the ratchet mechanism to enable the inhaul cable to automatically reset a wound coil spring (9).