CN2265333Y

CN2265333Y - Bicycle capable of converting into tricycle

Info

Publication number: CN2265333Y
Application number: CN 96220254
Authority: CN
Inventors: 钟允竹
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-08
Filing date: 1996-08-08
Publication date: 1997-10-22
Anticipated expiration: 2006-08-08

Abstract

The utility model relates to the improvement of an existing tricycle with single function and provides a tricycle, front and back wheels are separable, and a tricycle body can be used as a bicycle after the wheels are separated. The utility model is characterized in that a chain wheel for a central shaft is in chain connection with a chain wheel for a chassis orderly through a coaxial repeat chain wheels a and b, wherein, the chain wheel a can be disassembled from a rotating shaft and can be disassembled from a back wheel of the bicycle. Double vertical tubes of the tricycle body, the chassis and a carriage are connected, forming a separable structure; a back wheel of the bicycle is arranged on the tail end of a swing arm matched with a shaft hole of a left pulling plate; the back wheel can be folded upwards and clamped between two vertical tubes under a saddle; the utility model can be especially suitable for markets.

Description

Three-wheel two round transformation cars

The utility model relates to manual tricycle, particularly a kind of front body can with make the three-wheel vehicle that bicycle uses after separate on the chassis.

The front body and the chassis of existing three-wheel vehicle are fixedly connected, and have only single loading function, and floor area is big, especially to being the trade run by individuals family of main transportation means with three-wheel vehicle, ride instead of walk as the need bicycle, what for sense inconvenience.Chinese patent 87214542 " folded sides formula three-wheel vehicle " discloses a kind of three-wheel, two round transformation cars, one single wheel chassis one end axle drive shaft is fixed on the bicycle rear axle by connector, deployable and shrink, its shortcoming is can only carry a small amount of goods when the three-wheel vehicle time spent, dislikes burdensome when bicycle use again.

The purpose of this utility model is to improve existing three-wheel vehicle, makes its front and back separable, and separating the back front body can be separately as cycling.

The utility model comprises common vehicle body, chassis, compartment three-major-items, and improved main points are:

Connect by coaxial relaying sprocket wheel a, b chain successively between vehicle body axis sprocket wheel and the chassis sprocket wheel, but be detaching structure with axle wherein with axis sprocket chain relaying sprocket wheel a even, the vehicle body standpipe is two-tube, every pipe rear side arm-tie that is fixedly connected side by side, its terminal can unloading with the chassis member front end is connected, one stomidium of Zola's plate body and rocking arm, axle cooperate; the other end of rocking arm and bicycle rear shaft are dressed up L shaped; and be assembled into one with bicycle rear, can drive bicycle rear when rocking arm is rotated and make progress and fold.

Above-mentioned relaying sprocket wheel a is connected with axis by strut, makes the fixed distance between two sprocket wheels, and promptly an end of strut is enclosed within on the axis, and the other end connects with the axle sleeve that relaying sprocket wheel a is installed.

Relaying sprocket wheel a is connected with sleeve thread, and axle sleeve and rotating shaft or bicycle rear shaft can load and unload, and its structure has various ways, such as:

1, an end of axle sleeve radially is equipped with the pin that is inserted in spring, has blind hole with the pin respective diameters with the axial end of axle sleeve fitted shaft.Under external force, the elasticity pin on the sprocket wheel a can snap in or withdraw from the blind hole on the axle, reaches relaying sprocket wheel a and engages with rotating shaft or bicycle rear shaft or divide high purpose.

2, at the inner shafts of relaying sprocket wheel to several reducing latches are housed, the termination of axle is fixed with flange, the hole, garden of corresponding diameter when having reducing latch undergauge on the flange relevant position.Under external force, snap in or withdraw from flange, sprocket wheel a and rotating shaft or bicycle rear shaft are engaged or separate by the reducing latch.

In addition, but also can divert from one use to another the detaching structure of making this sprocket wheel and axle as the umbrella bar jump ring form in the umbrella opening and closing structure.

Two arm-ties of standpipe rear side of above-mentioned vehicle body and being connected of chassis member also can have various ways, such as:

1, the arm-tie end is made hook or is buckled, and the chassis member front end is equipped with and buckles accordingly or link up with, but both hooks is connected or disengagement;

2, the arm-tie end also can be opened hole, a garden, and the chassis member front end is installed the forked element that has pin-and-hole, after the pull bar end snaps in forked element, runs through both by pin and sells even.

In addition, also can divert from one use to another this detachable connection of do mechanism as the device that is connected between the railway car.

The shape of arm-tie can adopt T shape, also can be del.

Above-mentioned rocking arm is equipped with pivot pin and elasticity pin, cooperates with the hole, upper and lower garden of Zola's plate respectively, and wherein going up the hole is pin hole, and rocking arm is swayed, and following hole is a knock hole, and the elasticity pin snaps in this Kong Houke and makes the rocking arm location.

Above-mentioned right pulling plate lower end has pin-and-hole, cooperates with pulling pin of strut middle part.After extracting the elasticity pin, can make strut up and down, so that cooperate with the rotating shaft of relaying sprocket wheel.

Three-wheel two round transformation cars provided by the utility model, except having common three-wheel vehicle loading function, to link up with disengagement, relaying sprocket wheel a extracts from rotating shaft and is enclosed within on the bicycle rear shaft, promptly become the little back of a big front-wheel wheel bicycle, after the compartment made improvements slightly, make latter half after the separate front and back can make hand barrow or flor-rack apparatus uses, if make the chassis into Collapsible structure again, floor area is littler, for solving the nervous problem of country fair car park capacity, have obvious positive effect, also can convenient trade run by individuals family march into the arena, the loading and unloading goods when withdrawing from the arena.

In the accompanying drawing, Fig. 1 is the scheme drawing of the utility model during as three-wheel vehicle, Fig. 2 is the scheme drawing during as bicycle, Fig. 3 is Fig. 2 A-A partial top view, Fig. 4 is Zola's plate front view, Fig. 5 is the right pulling plate front view, Fig. 6 is Fig. 5 lateral plan, Fig. 7 is the strut scheme drawing, and Fig. 8 is the birds-eye view of Fig. 7 when loading onto relaying sprocket wheel a, and Fig. 9 is the rocking arm scheme drawing, Figure 10 is relaying sprocket wheel and chassis member connection diagram, but Figure 11 is another embodiment of relaying sprocket wheel a and axle detaching structure, and Figure 12 is arm-tie and buckles connection diagram that Figure 13 is the another kind of form of Figure 12.

Be described further below in conjunction with drawings and Examples.

With reference to accompanying drawing, front body comprises Foldable bicycle trailing wheel 2 and the two standpipes 1 of vehicle body, and aftercarriage is by compartment 4, and chassis 6 is formed, two standpipe 1 rear sides fixedly Zola's plate 3, right pulling plate 14 arranged side by side respectively.Left and right sides arm-tie end is made hook-shaped, but and be installed in that chassis member 6 front ends and compartment 4 are in front to buckle 8 and constitute detaching structures, shown in Fig. 1～5,12.One end of strut 10 is enclosed within on the axis, and the other end connects with axle sleeve 24.One end of axle sleeve 24 is shaped on outside thread, can with the screw-internal thread fit of relaying sprocket wheel a15, its other end radially is equipped with the pin 19 of spring 23, the middle part of strut 10 is equipped with and is pulled pin 26, as Fig. 7, shown in Figure 8.Axis sprocket wheel 11 connects with relaying sprocket wheel a15 chain, and chassis sprocket wheel and relaying sprocket wheel b7 chain connect.Inferior division on chassis member 6 front ends, last connection buckles 8, and lower link is equipped with the rotating shaft 25 of bearing, as Fig. 1, shown in Figure 10.Relaying sprocket wheel b7 binding is in rotating shaft 25 outer ends, and relaying sprocket wheel a15 is actively set on rotating shaft 25 the inners by axle sleeve 24, and the spring pin is cooperated with blind hole on rotating shaft 25 ends, realizes shirking of sprocket wheel a15.

Right pulling plate 14 lower ends have pin-and-hole 18, as Fig. 5, shown in Figure 6.When the bicycle, pulling pin of strut 10 middle parts 26 snaps in this pin-and-hole 18.Certainly, hole 18 and pin 26 positions can exchange.Can be to bicycle rear shaft 21 with the part weight transfer.

Zola's plate 3 is made oblique T shape, and its oblique vertical rod has axis hole 16 and knock hole 17 up and down, and rocking arm 9 one ends are installed bicycle rear shaft 21 and are the L shape, and are assembled into one by key 22 and bicycle rear 2.The other end of rocking arm 9 is equipped with pivot pin 12 and retainer spring pin 13 (both positions can exchange), cooperates with axis hole 16 and knock hole 17 on Zola's plate 3 respectively.In the time of in elasticity pin 13 snaps in knock hole 17; bicycle rear 2 of rocking arm 9 lower ends contacts with ground; the sprocket wheel a15 on the strut 10 is enclosed within on the hind axle 21; the spring pin 19 of axle sleeve 24 snaps in the pit 20 on the hind axle 21; promptly constitute a little back wheel bicycle; at this moment right pulling plate is by strut, and Zola's plate constitutes the bicycle rear support by rocking arm.

When the elasticity pin of extracting respectively on rocking arm 9 centres and the relaying sprocket wheel a axle sleeve 25 13 and 19, relaying sprocket wheel a15 and bicycle rear shaft are broken away from, conter clockwise upwards rotates trailing wheel 2, and snap between the two-tube vehicle body standpipe 1 in seat cushion below, axle sleeve 24 with relaying sprocket wheel a is inserted in rotating shaft 25 again, the hook of left and right sides arm-tie and 8 hooks that buckle of chassis member 6 front ends are connected, promptly can be used as the three-wheel vehicle loading and use.

But the detaching structure of relaying sprocket wheel a15 and axle, other various ways can be arranged, such as structure shown in Figure 11, at the outer shaft of relaying sprocket wheel a15 to 3 reducing latches 27 (shape is as being electrically connected banana plug commonly used) are installed, the axle head of rotating shaft 26 or hind axle 21 is fixed a flange 28, this flange correspondence has the hole, garden of 3 sizes during with reducing latch undergauge, when the reducing latch 27 on the sprocket wheel a15 being snapped in or withdraw from flange 28, can realize engaging or disengaging of sprocket wheel a15 and rotating shaft 25 or hind axle 21.

Buckle and have hole, garden 29 on 8 rear walls,, make vehicle body energy direct pull chassis and compartment in order to join with compartment 4 underframe spiral shells.The hole, two gardens 30 that buckles on the upright rib is night bolt holes, prevents that the car vibrations that are in operation from making hook disengagement from buckle.Certainly, can unload to connect also has many methods, and pin as shown in figure 13 connects formula, and forked type joint 31 rear walls hole, garden up and down join with compartment and chassis member spiral shell respectively, and arm-tie inserts in the forked type joint 31, realizes that by pin 32 pin connects.

Claims

1, a kind of three-wheel two round transformation cars, comprise vehicle body, the chassis, the compartment, it is characterized in that between axis sprocket wheel (11) and the chassis sprocket wheel successively by coaxial relaying sprocket wheel (15) and (7) chain company, wherein the sprocket wheel (15) that connects with axis sprocket wheel (11) chain but with axle be detaching structure, every pipe rear side of the two standpipes (1) of vehicle body left and right sides arm-tie (3) that is fixedly connected side by side, (14), terminal can the unloading with chassis member (6) front end of two arm-ties is connected, Zola's plate (3) plate body also with a stomidium of rocking arm (9), axle cooperates; the other end of rocking arm (9) and bicycle rear shaft (21) are dressed up L shaped, and are assembled into one with bicycle rear (2).

2, conversion car as claimed in claim 1, it is characterized in that relaying sprocket wheel (15) is threaded with axle sleeve (24), the other end radial aperture of axle sleeve (24), and the pin (19) that is inserted in spring (23) is housed, and the rotating shaft (25) that cooperates with this axle sleeve or the axial end of bicycle rear shaft (21) have and pin (19)) blind hole of respective diameters.

3, conversion car as claimed in claim 1, an end of its feature strut (10) is enclosed within on the axis, and the other end radially connects with axle sleeve (24).

4, conversion car as claimed in claim 1, the inner shafts that it is characterized in that sprocket wheel (15) is to 3 reducing latches (27) are installed, the axle head of rotating shaft (25) or hind axle (21) is fixed a flange (28), the corresponding hole, garden that has 3 sizes during with reducing latch undergauge on this flange, latch (27) can snap in or withdraw from from this hole, garden.

5, conversion car as claimed in claim 1, the end that it is characterized in that left and right sides arm-tie (3), (14) is made hook-shaped, inferior division on the front end of chassis member (6), go up and fixedly buckle (8), can connect with left and right sides plate pulling hook, the rotating shaft (25) that bearing fixedly is housed can make relaying sprocket wheel (15) and (7) coaxial down.

6, as claim 1 or 4 described conversion cars, it is characterized in that rocking arm (9) is equipped with pivot pin (12) and location with elasticity pin (13), cooperate with axis hole (16) and knock hole (17) on Zola's plate (3) respectively.