CN201313612Y

CN201313612Y - Gravity bicycle

Info

Publication number: CN201313612Y
Application number: CNU2008202040624U
Authority: CN
Inventors: 李贵祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-21
Filing date: 2008-11-21
Publication date: 2009-09-23
Anticipated expiration: 2018-11-21

Abstract

The utility model discloses a gravity bicycle, which comprises a frame, a handle, a front wheel, a rear wheel, a cushion, a left pedal and a right pedal, wherein the left pedal and the right pedal are respectively connected with the frame by parallel sliding rods slidingly; the sliding rods are connected by a linkage part, and one pedal moves up while the other pedal moves down; the lower end is provided with a movable rod which is connected with the rear wheel by a middle transmission part in a transmission way. With regard to the technical shortcoming of the transmission mechanism of the existing gravity bicycle, the utility model provides the gravity bicycle which can ensure the continuous and unidirectional movement of a chain wheel, and make full use of the gravity of human body, so that the user only needs to mark time or sit up and down to drive the bicycle forward easily. In addition, the gravity bicycle has the advantages of simple and reasonable structure, convenient operation, less effort, low noise, wide application scope and easy promotion.

Description

Gravitational bicycle

Technical field

The utility model relates to a kind of bicycle, particularly a kind of gravitational bicycle.

Background technology

Bicycle is the environmental protection vehicle that a kind of people use always, scrunches or is that propulsive effort travels by the body weight masterpiece by manpower.How making full use of human body self gravity and pedal legpower, improve bicycle driving efficient, reach not only laborsaving, but also fast speed purpose, is that existing bicycle needs the problem that further solves.Chinese patent literature CN1139181 discloses a kind of gravitational bicycle " bar tooth-crank-connecting rod " or " bar tooth-bar tooth " formula gravity converter, in inboard, axis two ends the opposite semi-circle gear of both direction is arranged, its principle is: when the application of force of the left side, bar tooth and semi-circle gear interlock, drive car, connecting rod, the bent axle of the right and left are forced to move synchronously simultaneously.Utilize action of inertia, the right gear is crossed the dead angle, the bar tooth on the right and semicircle interlock, and car obtains power again and advances.It is reasonable that this gravity converter seems, also impracticable in fact, find after deliberation, there are two fatal defectives in this gravity converter: 1. because the actual rotating diameter of gear has comprised tooth, when the gear in left side did not also go downwards to lowest order, the tooth bar on right side also was not returned to the extreme higher position and has just contacted with gear, because the sense of motion of the right side rack and pinion of this moment is opposite, therefore can block mutually, can't realize resetting fully.2. utilize force of inertia just can cross the dead angle, must satisfy two conditions but utilize force of inertia to cross the dead angle: continuous motion and force of inertia are greater than driving the resistance that sprocket wheel advances.Actual situation is that resistance tends to greater than force of inertia, might cause the motion of gear reversing sense, therefore brings inconvenience.

The utility model content

The purpose of this utility model aims to provide a kind of simple and reasonable, rapid operation, gravitational bicycle applied widely, to overcome weak point of the prior art.

By a kind of gravitational bicycle of this purpose design-calculated, comprise vehicle frame, handlebar, front and rear wheel, cushion and left and right stretcher, its architectural feature is left and right stretcher slide bar and the vehicle frame sliding block joint by being parallel to each other respectively, connect by STATEMENT OF FEDERALLY SPONSORED between the slide bar, and motion one on the other, the lower end is provided with portable bar, and portable bar is in transmission connection by intermediate drive spare and trailing wheel, replaces the application of force by double-legged up-and-down movement.

Described STATEMENT OF FEDERALLY SPONSORED is the pulley or the linkage gear of lever, band rope, and linkage gear is arranged on the vehicle frame by the rotating shaft location; Slide bar is separately positioned on the vehicle frame both sides, and the inboard is provided with the two-way drive tooth bar, and meshes with the linkage gear sidepiece respectively.

Described intermediate drive spare comprises the sprocket wheel that is arranged on the vehicle frame, and sprocket wheel is connected with the flywheel of trailing wheel by chain; The sprocket wheel both sides also are provided with power wheel and portable bar is unidirectional is in transmission connection.Power wheel is a ratchet, and the corresponding ratchet in the place ahead, portable bar lower end or rear is provided with ratchet bar, and upper end and slide bar lower end are hinged, and slide bar or portable bar one side are provided with the postive stop baffle of restraint bar swaying direction.The tooth of ratchet and ratchet bar is the linearly right angle trigonometry shape of shape or arc of inclined-plane, the hook tooth inclined-plane down, ratchet bar tooth inclined-plane is up.The portable bar lower end also is provided with weight.When weight kept portable bar to move downward, with the squareness of ratchet, the power that portable bar moves downward focused on the ratchet; During the portable bar upward movement, under the effect of hinge-point and postive stop baffle, portable bar can only leave ratchet toward the reversing sense swing of ratchet bar.

Described intermediate drive spare comprises the flywheel that is arranged on the trailing wheel both sides, and is in transmission connection with portable bar respectively.On the bicycle that this structure is ridden applicable to many people, as the place ahead one people be responsible for controlling party to, the rear personnel are responsible for by trampling stretcher direct control back-wheel drive.

The tooth both sides of described two-way drive tooth bar and/or ratchet bar are provided with bound edge, and the bound edge width is respectively greater than the thickness of linkage gear and ratchet.Linkage gear and ratchet are spacing all the time between bound edge, avoid taking off the tooth phenomenon because of what mechanical clearance caused.

Described left and right stretcher is separately positioned on slide bar upper end or sidepiece; Trailing wheel be provided with one or more than.Left and right stretcher is arranged on the slide bar sidepiece, more can realize the adjusting of height.

A kind of gravitational bicycle, comprise vehicle frame, handlebar, front-wheel, trailing wheel, cushion and be used for both feet and step on the stretcher of putting, its architectural feature is cushion and stretcher cushion slide bar and pedal slide bar and the vehicle frame sliding block joint by being parallel to each other respectively, the cushion slide bar is connected by STATEMENT OF FEDERALLY SPONSORED with pedal slide bar inboard, and motion one on the other; The lower end is respectively arranged with cushion portable bar and pedal portable bar, and two portable bars are in transmission connection by intermediate drive spare and trailing wheel respectively.

The utility model is at the technical deficiency of existing gravitational bicycle transmission device, provide a kind of and can guarantee that sprocket wheel continues the gravitational bicycle of one-way movement, make full use of human body self gravity, only need remain where one is or a seat motion, just can easily drive the fortune car and advance.Its simple and reasonable, easy to operate, laborsaving low noise, applied widely, be convenient to promote.

Description of drawings

Fig. 1 is the utility model one example structure scheme drawing.

Fig. 2 is the A place structure for amplifying scheme drawing of Fig. 1.

Fig. 3 is slide bar and linkage gear connection structure scheme drawing.

Fig. 4 is portable bar and ratchet connection structure scheme drawing.

Fig. 5 is a portable bar ratchet bar binding structure scheme drawing.

Fig. 6 is the utility model second embodiment local structure scheme drawing.

Fig. 7 is left foot pedal, slide bar, portable bar and ratchet connection structure scheme drawing.

Fig. 8 is the utility model the 3rd example structure scheme drawing.

Fig. 9 is the utility model the 4th example structure scheme drawing.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

First embodiment

Referring to Fig. 1-Fig. 4, this gravitational bicycle comprises vehicle frame 3, handlebar 1, front-wheel 2, trailing wheel 13, cushion 4, left foot pedal 5.1 and right steps 5.2.Vehicle frame 3 is provided with sprocket wheel 10, and trailing wheel 13 is provided with flywheel 12, and is connected with chain sprocket drive by chain 11.Left and right stretcher lower end is slidingly arranged in vehicle frame 3 left and right sides by the slide bar 7 that is parallel to each other respectively, and the corresponding slide bar of vehicle frame is provided with sliding sleeve 3.1, and is provided with linkage gear 6 between the corresponding slide bar inboard.Linkage gear is arranged on the vehicle frame 3 by the rotating shaft location, and slide bar 7 inboards are provided with two-way drive tooth bar 7.2, and mesh with linkage gear 6 sidepieces respectively.

Slide bar 7 lower ends and portable bar 9 are hinged, and rear side is provided with the postive stop baffle 7.1 of restraint bar swaying direction, and portable bar can only forwards be swung.Front side, portable bar 9 lower end is provided with weight 9.2, and rear side is provided with ratchet bar 9.1, with ratchet 8 engagements.The tooth of ratchet 8 and ratchet bar 9.1 is the linearly right angle trigonometry shape of shape or arc of inclined-plane, the hook tooth inclined-plane down, ratchet bar tooth inclined-plane is up.Ratchet 8 is connected with center, sprocket wheel 10 both sides by rotating shaft.

Principle of work: move when a slide bar is directed downwards along C, another slide bar is at the effect lower edge of linkage gear B direction upward movement.The slide bar drive portable bar that moves downward is directed downwards along D and moves, and ratchet bar and ratchet engaged make ratchet rotate along the F direction, and send power to trailing wheel by sprocket wheel, chain and flywheel, and bicycle is advanced.The slide bar of upward movement drives another portable bar upward movement, and simultaneously, portable bar makes ratchet bar and ratchet separate not transmission along the swing of E direction.The above-mentioned action that circulates is stepped on being positioned at high-order slide bar, realizes that trailing wheel constantly rotates to same direction, advances bicycle.

Referring to Fig. 5, the tooth both sides of above-mentioned ratchet bar 9.1 also can be provided with bound edge 9.3, and the bound edge width is greater than the thickness of ratchet 8.Linkage gear is replaceable to be lever, be with the pulley of rope etc., moves one on the other to realize the slide bar that is arranged on the vehicle frame both sides, not shown.

Second embodiment

Referring to Fig. 6, Fig. 7, left foot pedal 5.1 and right steps 5.2 are separately positioned on the front side of slide bar 7, and the strut bar 7.3 of downward bending is extended in the slide bar front side, captive joint with left and right stretcher respectively.The corresponding slide bar in vehicle frame 3 ' both sides is provided with sliding sleeve 3.1 '.Other does not state part with first embodiment.

The 3rd embodiment

Referring to Fig. 8, vehicle frame 3 rear portion flywheels 12 both sides are respectively arranged with a trailing wheel 13 ', form three-wheel vehicle.Other does not state part with first or second embodiment.

The 4th embodiment

Referring to Fig. 9, a kind of gravitational bicycle, comprise vehicle frame 14, handlebar, front-wheel, trailing wheel, cushion and be used for both feet and step on the stretcher of putting 16, cushion and stretcher be cushion slide bar 15 and the pedal slide bar 18 and vehicle frame sliding block joint by being parallel to each other respectively, the cushion slide bar is connected by linkage gear 6 with the pedal slide bar is inboard, and motion one on the other; The lower end is respectively arranged with cushion portable bar 17 and pedal portable bar 19, two portable bars are in transmission connection by ratchet 8, sprocket wheel, chain, flywheel and trailing wheel respectively, so that sitting moves realizes that bicycle advances by rising.Corresponding cushion slide bar 15 in vehicle frame bottom and pedal slide bar 18 are provided with low sleeve 14.2, and the also corresponding cushion slide bar 15 in top is provided with upper sliding sleeve 14.1.

Above-mentioned cushion slide bar, pedal slide bar and cushion portable bar, pedal portable bar structural principle be slide bar and the portable bar of first embodiment together, and other does not state part with first embodiment.

Claims

1. gravitational bicycle, comprise vehicle frame (3), handlebar (1), front-wheel (2), trailing wheel (13), cushion (4) and left and right stretcher (5.1), (5.2), it is characterized in that the left and right stretcher slide bar (7) and vehicle frame sliding block joint by being parallel to each other respectively, connect by STATEMENT OF FEDERALLY SPONSORED between the slide bar, and motion one on the other, the lower end is provided with portable bar (9), and portable bar is in transmission connection by intermediate drive spare and trailing wheel.

2. according to the described gravitational bicycle of claim 1, it is characterized in that described STATEMENT OF FEDERALLY SPONSORED is the pulley or the linkage gear (6) of lever, band rope, linkage gear is arranged on the vehicle frame by the rotating shaft location; Slide bar is separately positioned on the vehicle frame both sides, and the inboard is provided with two-way drive tooth bar (7.2), and meshes with the linkage gear sidepiece respectively.

3. according to the described gravitational bicycle of claim 1, it is characterized in that described intermediate drive spare comprises the sprocket wheel (10) that is arranged on the vehicle frame, sprocket wheel is connected with the flywheel (12) of trailing wheel by chain (11); The sprocket wheel both sides also are provided with power wheel and portable bar is unidirectional is in transmission connection.

4. according to the described gravitational bicycle of claim 3, it is characterized in that described power wheel is ratchet (8), the corresponding ratchet in the place ahead, portable bar lower end or rear is provided with ratchet bar (9.1), the upper end is hinged with the slide bar lower end, and slide bar or portable bar one side are provided with the postive stop baffle (7.1) of restraint bar swaying direction.

5. according to the described gravitational bicycle of claim 4, the tooth that it is characterized in that described ratchet and ratchet bar is the linearly right angle trigonometry shape of shape or arc of inclined-plane, the hook tooth inclined-plane down, ratchet bar tooth inclined-plane is up.

6. according to the described gravitational bicycle of claim 4, it is characterized in that described portable bar lower end also is provided with weight (9.2).

7. according to the described gravitational bicycle of claim 1, it is characterized in that described intermediate drive spare comprises the flywheel that is arranged on the trailing wheel both sides, and be in transmission connection with portable bar respectively.

8. according to claim 2 or 4 described gravitational bicycles, it is characterized in that the tooth both sides of described two-way drive tooth bar and/or ratchet bar are provided with bound edge (9.3), the bound edge width is respectively greater than the thickness of linkage gear and ratchet.

9. according to the described gravitational bicycle of claim 1, it is characterized in that described left and right stretcher is separately positioned on slide bar upper end or sidepiece; Trailing wheel be provided with one or more than.

10. gravitational bicycle, comprise vehicle frame (14), handlebar, front-wheel, trailing wheel, cushion and be used for both feet and step on the stretcher of putting (16), it is characterized in that cushion and stretcher cushion slide bar (15) and the pedal slide bar (18) and vehicle frame sliding block joint by being parallel to each other respectively, the cushion slide bar is connected by STATEMENT OF FEDERALLY SPONSORED with pedal slide bar inboard, and motion one on the other; The lower end is respectively arranged with cushion portable bar (17) and pedal portable bar (19), and two portable bars are in transmission connection by intermediate drive spare and trailing wheel respectively.