CN100453393C

CN100453393C - A kind of miniature tricycle and its frame

Info

Publication number: CN100453393C
Application number: CNB2005101002344A
Authority: CN
Inventors: 张向阳
Original assignee: Individual
Current assignee: Foshan Nanhai Sanying Sports Bicycle Co ltd
Priority date: 2005-10-13
Filing date: 2005-10-13
Publication date: 2009-01-21
Anticipated expiration: 2025-10-13
Also published as: CN1751955A

Abstract

The invention relates to a miniature tricycle and its vehicle frame. The vehicle frame comprises a main vehicle frame, a central shaft sleeve installed on the main vehicle frame and a rear axle connecting device. The main frame is V-shaped, H-shaped or U-shaped by connecting the front tube, down tube and rear stand tube, or V-shaped or U-shaped by connecting the front tube and L-shaped frame or U-shaped frame; its rear axle The connecting device is installed at the rear end of the main frame, including guides, connecting piece assemblies and shock absorbers. The vehicle frame of the invention is simple in structure and easy to process, and the miniature tricycle assembled with the vehicle frame is convenient to get on and off, the vehicle body can swing left and right, is not easy to turn over, and runs stably and safely. The invention has a wide range of uses. It can be made into a miniature three-wheeled bicycle driven by manpower, equipped with a battery and a motor, and can also be improved into a miniature three-wheeled electric vehicle; the invention can be used as a general transportation tool or as a leisure vehicle , fitness, amusement, tourism, sports, delivery and other tools, and can also be developed as baby carriages, disabled vehicles, etc.

Description

A kind of bubble car and vehicle frame thereof

[technical field]

The present invention relates to a kind of three-wheel vehicle and vehicle frame thereof, particularly relate to a kind of bubble car and vehicle frame thereof.

[background technology]

Common manual tricycle and three-wheeled electric vehicle are owing to there are three wheels, its riding stability is better than bicycle and electric motor car with two wheels under the situation of low speed driving, therefore small tricycle and three-wheeled electric vehicle are subjected to the elderly's welcome, can also be as a kind of transportation means in some small and medium-sized cities and rural area.But existing three-wheel vehicle and three-wheeled electric vehicle body frame structure for automotive complexity, the bodily form is big, vehicle body is heavy, still turn over side under steam easily,, be difficult to use as a kind of common traffic means of transport in today that urban highway resource scarcity, traffic are blocked up day by day, people's awareness of safety day by day strengthens.As immediate documents, ZL 200410027852.6 discloses a kind of light tri-wheeler and vehicle frame thereof, and this invention has solved the problems referred to above preferably, and weak point is that main car frame has crossbeam (going up pipe), the sense slightly that gets on and off is inconvenient, can not satisfy old man, child's operating needs.

[summary of the invention]

At above-mentioned defective, one of purpose of the present invention is to provide a kind of simple in structure, main car frame not with the miniature tri wheel vehicle carriage of crossbeam (going up pipe); Another object of the present invention be conveniently get on and off in order to provide a kind of, bubble car that vehicle body can deflect.

One of purpose of the present invention is achieved through the following technical solutions: a kind of miniature tri wheel vehicle carriage comprises main car frame, is loaded on the axis sleeve pipe of main car frame and is loaded on the Backshaft connecting device of main car frame rear end; Described main car frame comprises preceding pipe, following pipe and rear profile tube, preceding pipe, following pipe and rear profile tube are interconnected to form V-arrangement, H shape or the U-shaped that opening makes progress, following pipe and rear profile tube both can adopt single tube, also can adopt left and right arranged side by side two-tubely, and described axis sleeve pipe is loaded on down pipe;

Perhaps, described down pipe and rear profile tube can be with L shaped or the replacements of U-shaped frame, be pipe and L shaped or U-shaped frame before described main car frame comprises, L shaped or U-shaped frame form with single tube or left and right two-tube bending arranged side by side, its front end and preceding pipe join and form V-arrangement or the U-shaped that opening makes progress, and described axis sleeve pipe is loaded on L shaped or U-shaped frame;

Such scheme can further improve, and adds after poppet in the main car frame rear end, and after poppet is by left and right two-tube composition the arranged side by side, its rear end formation shelf that extend back, and its front end and rear profile tube and time pipe join, and perhaps join with L shaped or U-shaped frame;

Described Backshaft connecting device comprises guide, connecting strap assembly and left and right bumper; Described connecting strap assembly comprises the symmetrically arranged connecting strap in the left and right sides, 1-4 bar connection pipe and is loaded on the bearing of connecting strap that connection pipe two ends and left and right connecting strap join; Described guide front end and main car frame posterior end join, and its rear end and connecting strap assembly join, and the bumper upper end joins with main car frame, and its lower end and guide or connecting strap assembly join.

Another object of the present invention is achieved through the following technical solutions: a kind of bubble car, comprise vehicle frame, and described vehicle frame comprises main car frame, be loaded on the axis sleeve pipe of main car frame and be loaded on the Backshaft connecting device of main car frame rear end; Described main car frame comprises preceding pipe, following pipe and rear profile tube, preceding pipe, following pipe and rear profile tube are interconnected to form V-arrangement, H shape or the U-shaped that opening makes progress, following pipe and rear profile tube both can adopt single tube, also can adopt left and right arranged side by side two-tubely, and described axis sleeve pipe is loaded on down pipe;

Described Backshaft connecting device comprises guide, connecting strap assembly and left and right bumper; Described connecting strap assembly comprises the symmetrically arranged connecting strap in the left and right sides, 1-4 bar connection pipe and is loaded on the bearing of connecting strap that described connection pipe two ends and left and right connecting strap join; Described guide front end and main car frame posterior end join, and its rear end and connecting strap assembly join, and the bumper upper end joins with main car frame, and its lower end and guide or connecting strap assembly join.

The advantage of miniature tri wheel vehicle carriage of the present invention is:

1, simple in structure.Main car frame of the present invention has saved crossbeam (going up pipe) compared with the prior art, and body frame structure for automotive is further simplified, and installs after poppet additional and then rear shock absorber can be installed more easily, can also be used as back seat or shelf.

2, processing easily.Following pipe in the main car frame of the present invention and rear profile tube can replace with L shaped or U-shaped frame, L shaped or U-shaped frame with single tube or side by side two-tube direct bending form, saved cutting, welding process, also can increase the intensity of vehicle frame.

Advantage with the bubble car of the present invention of above-mentioned chassis mount is:

1, convenient for passenger to get on and off.Because main car frame of the present invention is not with crossbeam (going up pipe), the basic configuration of vehicle frame is V-arrangement, H shape or the U-shaped that opening makes progress, so more convenient getting on or off the bus is particularly suitable for old man, child and disabled person and uses.

2, vehicle body can deflect.Guide of the present invention and main car frame adopt vertically hinged, perhaps guide itself is made by elastomeric material, the front and back end can produce certain " twist distortion " under the effect of power, the vertical deflection that makes the connecting strap assembly that is loaded on the guide rear portion and rear axle can realize certain angle, add rear shock absorber has been installed, main car frame can be swung to two-side elastic, can avoid turning over side by the same Lateral Runout of rider and vehicle body during Vehicular turn, make vehicle ' safer.

3, of many uses.The present invention both can adopt manpower to drive and make miniature tri wheel cycle, loaded onto battery and electrical motor, also it can be improved to the miniature tri wheel battery-driven car; The present invention both can be used as general traffic means of transport, also can be used as leisure, body-building, travels, traveled, instrument such as motion, deliver goods, also can be developed as perambulator, disabled person's car etc.

[description of drawings]

Fig. 1 is the V-arrangement main car frame scheme drawing (band Backshaft connecting device) that preceding pipe, following pipe and rear profile tube are formed by connecting

Fig. 2 is the H shape main car frame scheme drawing that preceding pipe, following pipe and rear profile tube are formed by connecting

Fig. 3 is for adopting two H shape main car frame scheme drawings of pipe down

Fig. 4 is the U-shaped main car frame scheme drawing that preceding pipe, following pipe and rear profile tube are formed by connecting

Fig. 5 is L shaped V-arrangement main car frame scheme drawing (band Backshaft connecting device) that is formed by connecting with preceding pipe

Fig. 6 is the U-shaped main car frame scheme drawing that U-shaped frame and preceding pipe are formed by connecting

Fig. 7 is chain stay+bumper formula Backshaft connecting device transparent view

Fig. 8 is a chain stay contact pin transparent view

Fig. 9 is band sleeve pipe guide plate+bumper formula Backshaft connecting device transparent view

Figure 10 is band sleeve pipe guide plate transparent view

Figure 11 is flute profile guide plate+bumper formula Backshaft connecting device transparent view

Figure 12 is a flute profile guide plate transparent view

Figure 13 is guide pipe+orienting lug+bumper formula Backshaft connecting device transparent view

Figure 14 is the orienting lug transparent view of anterior band round bar

Figure 15 is T shape pilot bar+orienting lug+bumper formula Backshaft connecting device transparent view

Figure 16 is T shape pilot bar and the hinged transparent view of orienting lug

Figure 17 is T shape pilot bar+guide frame+bumper formula Backshaft connecting device transparent view

Figure 18 is T shape pilot bar and the hinged transparent view of guide frame

Figure 19 is a connecting strap assembly transparent view

Figure 20 is brake (contracting brake box of the band band-type brake circle) transparent view that is symmetrical set

Figure 21 is for installing brake (contracting brake box of band band-type brake circle) transparent view on the connecting strap assembly

Figure 22 is a preferred embodiment of the present invention miniature tri wheel battery-driven car transparent view

Among the figure:

2 times pipes of pipe, 3 rear profile tubes 4 before the main car frame 1

After poppet 5 Backshaft connecting devices 6 hog frames 7 brakes 8

Rear axle 9 axis sleeve pipes 10 handlebars 11 batteries 12

18 L shaped 31 U-shaped framves 32 of motor 13 pedal parts

Guide 61 connecting strap assemblies 62 bumpers 63 chain stays 611

Chain stay contact pin 612 band sleeve pipe guide plates 613 flute profile guide plates 614 guide pipes 615

T shape pilot bar 616 orienting lugs 617 guide frames 618 connecting straps 621,621 '

Connection pipe 622 bearings 623 contracting brake boxs 81,81 ' band-type brake circle 82,82 '

Crank throw 83,83 ' crank throw pipe link, 84 center taps 85

[specific embodiment]

Preferred embodiment: present embodiment is the miniature tri wheel battery-driven car.As Figure 15, shown in Figure 22, this miniature tri wheel electromobile frame comprises main car frame 1, axis sleeve pipe 10 and Backshaft connecting device 6.Wherein main car frame 1 is made up of preceding pipe 2, U-shaped frame 32, after poppet 5, the two-tube bending that U-shaped frame 32 usefulness are left and right side by side, the rear and front end is upturned forms, reinforce with 2-3 root transverse tube between two-tube, its front end also joins with preceding pipe 2 together and reinforces by hog frame 7; After poppet 5 is left and right arranged side by side two-tube, reinforces with 2-3 root transverse tube between two-tube, and its rear end horizontal-extending closure backward is connected to form shelf, and its front end extends with U-shaped frame 32 outsides to the front lower place and joins, after poppet 5 can with single tube directly bending form; Axis sleeve pipe 10 is loaded on U-shaped frame 32 bottoms.

As shown in figure 15, Backshaft connecting device 6 adopts T shape pilot bar+orienting lug+bumper formula structure, and this device comprises guide 61, connecting strap assembly 62 and bumper 63.Guide 61 is made up of T shape pilot bar 616 and orienting lug 617, orienting lug 617 rear ends laterally are provided with 3 circular holes, wherein in the middle of the circular hole aperture greater than rear axle 9 so that with rear axle 9 free-running fits, rear axle 9 can freely be turned round therein, and all the other two circular holes are used to install two connection pipes 622,622; The T shape end of T shape pilot bar 616 is hinged with U-shaped frame 32 posterior ends, the pipe hinged (Figure 16) that the other end and orienting lug 617 front ends vertically stretch out; As shown in figure 19, connecting strap assembly 62 comprises left and right connecting strap 621,621 ', two connection pipe 622,622 and bearing 623,623, left and right connecting strap 621,621 ' spacing are 300mm, bearing 623,623 is installed in connecting strap 621,621 ' middle part, article two, connection pipe 622,622 passes the circular hole of orienting lug 617 rear ends and affixed with orienting lug 617, and join with left and right connecting strap 621,621 ', article two, the spacing between connection pipe 622, the 622 tube wall inboards is 80mm, flywheel is turned round therein be not subjected to interfere; Bumper 63 is a pair of and left and right being symmetrical arranged, article two, connection pipe 622,622 is connected with after poppet 5 elasticity by

bumper

63,63, for making two connection pipes stressed evenly, installed the bumper frame between bumper lower end and the connection pipe additional, be provided with circular hole and its aperture in the middle part of the bumper frame greater than rear axle 9, so that rear axle 9 can freely turn round therein, simultaneously, need to reserve the space of 40mm between left and right bumper frame and the orienting lug 617, drive flywheel and motor flywheel so that manpower is installed.

As shown in figure 22, in the preceding pipe 2 of above-mentioned vehicle frame, load onto front fork, upper and lower end at front fork is loaded onto handlebar 11 and 20 respectively " front-wheel; in the bearing 623,623 of connecting strap assembly 62, load onto the long rear axle 9 of 500mm that be; rear axle 9 passes circular hole default in orienting lug 617 and the left and right bumper frame, and an end and a trailing wheel are affixed, and the other end is by bearing and another trailing wheel loose joint; with the rotation of formation differential, the wheel of two trailing wheels directly is 20 "; In axis sleeve pipe 10, load onto axis, the pedal parts 18 of mounting strap 48 toothed chain dishes on the axis, 16 tooth flywheels are loaded onto at corresponding position with chain drum on rear axle 9, load onto chain between chain drum and the flywheel, take off chain for preventing flywheel, can install chain cable fairlead additional at the flywheel front end; As Figure 20, shown in Figure 21, the brake 8 of present embodiment adopts the ordinary bicycle band-type brake, band-type brake is a pair of and is symmetrical arranged, during installation on a left side, right connecting strap 621, band band-type brake circle 82 is loaded onto in the 621 ' outside, 82 contracting

brake box

81,81, crank throw 83 on two band-type brake circles, load onto crank throw pipe link 84 between 83, load onto brake cable center tap 85 at crank throw pipe link 84 middle parts, inboard and the contracting brake box 81 at the axle sleeve of two trailing wheels, the band-type brake dish is loaded onto (in other embodiments in 81 corresponding positions, also can adopt rise lock or disc brake, its installation method and this example are together), on handlebar 11, load onto the rim brake handle, between brake lever and brake cable center tap 85, load onto brake cable, load onto common brake part at front-wheel, load onto saddle in upper end, U-shaped frame 32 back, on U-shaped frame 32 bottoms, downside is loaded onto motor and battery respectively, preceding, mudwing is loaded onto in the trailing wheel outside, and a miniature tri wheel battery-driven car is promptly accused assembling and finished.

Present embodiment institute stack-mounted miniature tri wheel battery-driven car oad is suitable with existing Electrical Bicycle, the high about 1680mm * 500mm of length and width * 1060mm.Therefore, as long as Electrical Bicycle can be set out on a journey, the present invention just has reason and can set out on a journey.(T shape pilot bar 616T shape end and U-shaped frame 32 posterior ends are for being laterally hinged with because present embodiment has adopted " two-stage is hinged ", its rear end and orienting lug 617 are for vertically hinged), and bumper has been installed, so when uneven road surface is arrived in trailing wheel one side impact, can reduce greatly vehicle body wigwag motion and pitch, when Vehicular turn, the rider can make the unlikely side of turning over of vehicle by health to homonymy deflection and the certain angle acquisition centripetal force of body inclination as by bike; The double rear wheel brake gear that the present invention installed is a brake synchronizer, two trailing wheels are stressed evenly during brake, can prevent running out the way to a certain extent and turn over side, this device has been formed the failure-free brake system with the front-wheel brake part, thereby has improved the safety of travelling greatly; The vehicle frame of present embodiment is owing to the V-arrangement, H shape or the U-shaped structure that have adopted opening to make progress, so easily the rider gets on and off; The present invention is except that Backshaft connecting device 6, and other parts all can adopt existing Electrical Bicycle standard parts and components.Present embodiment both can adopt driven by power, also can adopt manpower to drive, and when adopting manpower to drive, the cooperation of its chain drum, flywheel and trailing wheel makes it still can obtain speed per hour about 15 kilometers under normal stepping frequency.Therefore, the present invention is simple in structure, small volume and less weight, driving stability safely, be not easy to turn over side, ride comfort, can be used as general traffic means of transport fully promotes in town and country, can also be widely used as leisure, body-building, travel, travel, instruments such as motion, deliver goods, or make perambulator, disabled person's car uses.

Compare with documents, improvements of the present invention are at main car frame 1.The basic configuration of main car frame 1 is V-arrangement, H shape or the U-shaped that opening makes progress, and its composition and attaching method thereof has multiple scheme available:

Scheme one: as shown in Figure 1, pipe 2 before main car frame 1 comprises, manage 3 down, rear profile tube 4 and axis sleeve pipe 10, following pipe 3 two ends join with the lower end of preceding pipe 2 and rear profile tube 4 respectively, axis sleeve pipe 10 is loaded on down manages 3; The outward appearance of main car frame 1 is V-shaped.For increasing the intensity of main car frame 1, following pipe 3 can add hog frame 7 with the junction of preceding pipe 2 or rear profile tube 4.

Scheme two: as shown in Figure 2, pipe 2 before main car frame 1 comprises, manage 3 down, rear profile tube 4 and axis sleeve pipe 10, following pipe 3 two ends respectively with the middle part of preceding pipe 2 and rear profile tube 4 in, the bottom joins, axis sleeve pipe 10 is loaded on down manages 3; The outward appearance of main car frame 1 is H shape.For increasing the intensity of main car frame 1, following pipe 3 can add hog frame 7 with the junction of preceding pipe 2.

Fig. 3 is the improvement project of scheme one or scheme two, and its difference is down that pipe 3 is two and upper and lower arranged side by side, and joins with preceding pipe 2 or rear profile tube 4 respectively, and the purpose of establishing a following pipe 3 is in order to increase the intensity of main car frame 1 more.

Scheme three: as shown in Figure 4, pipe 2 before main car frame 1 comprises, manage 3 down, rear profile tube 4 and axis sleeve pipe 10, following pipe 3 front ends join to front upper place perk and preceding pipe 2, its rear end and rear profile tube 4 join, the outward appearance of main car frame 1 takes the shape of the letter U.

Scheme four: as Fig. 5, shown in Figure 6, be to save welding process, increase frame strength, following pipe 3 in Fig. 1,2,4 schemes and rear profile tube 4 can replace with L shaped or U-shaped frame, and L shaped or U-shaped frame directly bend with single tube and form, its front end and preceding pipe 2 join, main car frame 1 V-shaped or U-shaped.For gaining in strength, the junction of L shaped or U-shaped frame and preceding pipe 2 can add hog frame 7, and axis sleeve pipe 10 is loaded on L shaped or U-shaped frame middle part.

In such scheme, following pipe 3 and rear profile tube 4, L shaped or U-shaped frame both can be single tubes, also can be left and right side by side, middle by transverse tube join two-tube, its cross section can be a pipe, also can be the pipe of square tube, oval tube or other shapes; Simultaneously, be the convenient Backshaft connecting device 6 of installing, main car frame 1 can also add after poppet 5.After poppet 5 is by left and right two-tube composition the arranged side by side, its front end extends and rear profile tube 4 and pipe 3 join (Fig. 2-3) down to the front lower place, perhaps with L shaped or U-shaped frame join (Fig. 5-6), also can forwards extend with rear profile tube 4 and before pipe 2 join (Fig. 4), its rear end is horizontal-extending and interconnecting backward; The also available single tube of after poppet 5 directly bending forms.Between after poppet 5 and the rear profile tube 4 hog frame 7 can be installed, make its structure more firm.After poppet 5 is set not only rear shock absorber 63 can be installed easily, can also be used as back seat or shelf, but both can manned also loading, can also increase the intensity of main car frame, be to achieve many things at one stroke.Certainly, in some children's tricycles, for the purpose of light, after poppet 5 can be economized and establish, and Backshaft connecting device 6 can be directly installed on (as Fig. 1) on the rear profile tube 4; Only in the single bubble car that drives, after poppet 5 also needn't extend back into shelf at some, and only as the erecting frame (as Fig. 6) of rear shock absorber 63.

Compare with existing three-wheel vehicle, improvements of the present invention are that main car frame 1 is by Backshaft connecting device 6 installation rear axles 9.Backshaft connecting device 6 comprises guide 61, connecting strap assembly 62 and bumper 63, and the three respectively bears different functions, and it is formed also different modes:

1, guide: the effect of guide 61 mainly is to play the guiding role for rear axle 9, promptly locate rear axle, no matter its front end and main car frame 1 employing are laterally hinged with still vertically hinged, to guarantee that all rear axle 9 can not produce left and right axial wobble, make the rotating direction of trailing wheel remain consistent with vehicle forward direction.

For making vehicle ' stability and safety more, vehicle body must realize that certain vertical homonymy deflection just can avoid turning over side during Vehicular turn.For this reason, the present invention has adopted two technical schemes: the one, adopt vertically hinged between guide and the main car frame; Perhaps, be laterally hinged with though adopt between guide and the main car frame, but adopt vertically hinged between each parts of guide, or guide itself is made by elastic material, its front and back ends can produce certain " twist distortion " under the effect of power, make the connecting strap assembly that is installed in the guide rear end and rear axle still can realize to a certain degree vertical deflection; The 2nd, rear shock absorber has been installed, make the be deflected to elastic deflection of main car frame to both sides, this deflection only could realize under the effect of power.

2, connecting strap assembly: the effect of connecting strap assembly 62 has two: one, plays intermediary's interconnect function between guide 61 or bumper 63 and rear axle 9, and by the bearing on the connecting strap 621,621 ' 623,623 rear axles 9 is installed; Two provide a mounting plane location and installation brake 8.As shown in figure 19, connecting strap assembly 62 comprises left and right connecting strap 621,621 ', (connection pipe 622 is generally two to connection pipe 622,622, can between the 1-4 bar, select as required) and bearing 623,623, connecting strap 621,621 ' is disk shape or oval sheet, bearing 623,623 is loaded on connecting strap 621,621 ' middle part, connection pipe 622,622 two ends and left and right connecting strap 621,621 ' are affixed or adopt and be spirally connected, connecting strap 621,621 ' is provided with some screws, so that brake 8 and mudwing are installed.Left and right connecting strap 621,621 ' spacing are selected between 100-600mm, are generally 200-500mm, and this spacing is after loading onto rear axle and two trailing wheels, and overall width is about 360-700mm.If the connection pipe more than 2 is installed, the space (being generally 70-90mm) between 90 ± 30mm should be arranged between each connection pipe, so that after loading onto flywheel, the unlikely interference of flywheel running therein.

3, bumper: the effect of bumper 63 is " suspension " and the left and right elastic deflection of realizing vehicle body.On the one hand, the load of body tail is passed to connecting strap assembly 62, rear axle 9 until trailing wheel by bumper 63 elasticity, makes vehicle realize damping; On the other hand, bumper and guide cooperatively interact, and make main car frame 1 elastic deflection to the left and right sides, can avoid turning over side during to obstacle in Vehicular turn or trailing wheel one side impact.Bumper 63 is a pair of and left and right being symmetrical arranged, and for adapting to the variation of its on the go relative position, its upper and lower end must be installed oscillating

bearing.Bumper

63,63 and guide 61 will leave certain space (being generally 25-40mm) with side, so that flywheel is installed and its running is not interfered.

Except that preferred embodiment was described, Backshaft connecting device 6 also had following scheme available:

1, chain stay+bumper formula.As shown in Figure 7, the guide of this scheme comprises chain stay 611, is installed in the chain stay contact pin 612,612 of chain stay 611 rear ends, and its connecting strap assembly 62 is with two connection pipes 622,622.As shown in Figure 8, the chain stay contact pin 612 of semiellipse sheet or rectangle sheet, 612 are installed in chain stay 611 rear ends, offer 3 and two connection pipes 622 on it, 622 and rear axle 9 cooperates and to the fitting recess of under shed, wherein Zhong Jian fitting recess aperture is greater than rear axle 9, rear axle 9 can freely be turned round therein, the fitting recess of its both sides then is used to install two connection pipes 622,622, chain stay contact pin 612,612 spacing is selected between 80-300mm, and be installed in a left side, right connecting strap 621, between 621 ', which is provided with screw, be convenient to realize removably connecting with connecting strap assembly 62.

Chain stay 611 front ends are with pipe 3 rear ends are hinged down, for removably connecting, realize that by left and

right bumper

63,63 elasticity are connected between chain stay contact pin 612,612 or connecting strap assembly 62 and the main car frame 1 (rear profile tube 4 or after poppet 5) between chain stay contact pin 612,612 and the connection pipe 622,622.Elastic steel pipe of chain stay 611 usefulness or spring steel are made, and under the situation that its front end and main car frame 1 are laterally hinged with, the rear end still can produce certain " twist distortion " under the effect of power, to cooperate the left and right deflection of vehicle body.

2, band sleeve pipe guide plate+bumper formula.As Fig. 9, shown in Figure 10, the guide 61 of this scheme is a front end guide plate 613 with well, and its connecting strap assembly 62 is with two connection pipes 622,622.Guide plate 613 front ends are hinged by sleeve pipe and main car frame 1, and rear end and two connection pipes 622,622 join, and realize that by left and

right bumper

63,63 and main car frame 1 (rear profile tube 4 or after poppet 5) elasticity is connected.

3, flute profile guide plate+bumper formula.As Figure 11, shown in Figure 12, the guide 61 of this scheme is a flute profile guide plate 614, and its connecting strap assembly 62 is with two connection pipes 622,622.Flute profile guide plate 614 rear ends laterally are provided with 3 circular holes, middle circular hole and rear axle 9 free-running fits, all the other two circular holes are used to install connection pipe 622,622, flute profile guide plate 614 front ends and main car frame 1 are hinged, its rear end is laterally affixed by above-mentioned circular hole and connection pipe 622,622, and realizes that by left and

right bumper

Band sleeve pipe guide plate 613 or flute profile guide plate 614 are made by sheet steel or other elastomeric materials, can produce certain " twist distortion " under the effect of power, realize left and right deflection to cooperate vehicle body.

4, guide pipe+orienting lug+bumper formula.As Figure 13, shown in Figure 14, the guide 61 of this scheme comprises guide pipe 615 and orienting lug 617, and its connecting strap assembly 62 is with two connection pipes 622,622.Orienting lug 617 front ends vertically stretch out a round bar, and its rear end laterally is provided with 3 circular holes, middle circular hole and rear axle 9 free-running fits, and all the other two circular holes are used to install connection pipe 622,622 (Figure 14); Guide pipe 615 is installed in main car frame 1 posterior end, the round bar and the guide pipe 615 of orienting lug 617 front ends are hinged, its rear end laterally is connected with two connection pipes 622,622, and connection pipe 622,622 realizes that by left and

right bumper

5, T shape pilot bar+guide frame+bumper formula.As Figure 17, shown in Figure 180, the guide 61 of this scheme comprises T shape pilot bar 616 and guide frame 618, and its connecting strap assembly 62 is with two connection pipes 622,622.Guide frame 618 is a tower structure, its front portion vertically is provided with two circular holes, the T shape end of T shape pilot bar 616 is laterally hinged with main car frame 1 posterior end, the other end is vertically hinged by these two circular holes and guide frame 618, each laterally is provided with 3 circular holes both sides, guide frame 618 rear end, wherein Zhong Jian circular hole and rear axle 9 free-running fits (Figure 18), all the other two circular holes are used to install connection pipe 622,622; Connection pipe 622,622 realizes that by left and

right bumper

63,63 and main car frame 1 (rear profile tube 4 or after poppet 5) elasticity is connected.Guide frame 618 usefulness sheet steels are made, or made of plastic.

Claims

1. A miniature tricycle frame, comprising a main frame (1), a central shaft sleeve (10) mounted on the main frame (1) and a rear axle connecting device (6) mounted on the rear end of the main frame (1) ), characterized in that: the main frame (1) includes a front pipe (2) and an L-shaped frame (31) or a U-shaped frame (32), and the L-shaped frame (31) or the U-shaped frame (32) is used The left and right side-by-side double pipes are bent, and the double pipes are connected by 2-3 horizontal pipes, and their front ends are connected with the front pipe (2) to form a V shape or U shape with an upward opening. The shaft sleeve (10) is mounted on an L-shaped frame (31) or a U-shaped frame (32);

The main frame (1) also includes a rear bracket (5). The rear bracket (5) is composed of left and right double tubes, and the double tubes are reinforced with 2-3 horizontal tubes. Horizontally extending and closing to form a shelf, the front end of which is connected to the L-shaped frame (31) or the U-shaped frame (32);

The rear axle connection device (6) includes a guide piece (61), a connecting piece assembly (62) and left and right shock absorbers (63, 63); the described connecting piece assembly (62) includes two left and right The connecting pieces (621, 621 '), 1-4 connecting pipes (622) and the bearings (623, 623) mounted on the connecting pieces (621, 621 ') arranged symmetrically on the side, the two connecting pipes (622) The end is connected with the left and right connecting pieces (621, 621'); the front end of the guide (61) is connected with the rear lower end of the main frame (1), and its rear end is connected with the connecting piece assembly (62) , the upper end of the shock absorber (63, 63) joins with the main frame (1), and its lower end joins with the guide piece (61) or the link assembly (62).

2. The miniature tricycle frame according to claim 1, characterized in that there are two connecting pipes (622), the guide (61) is a flat fork (611), and the flat fork (611) A pair of flat fork joints (612, 612) are installed at the rear end, and the flat fork joints (612, 612) are semi-elliptical or rectangular, on which there are 3 assembly grooves with downward openings, which are respectively connected with the The above connecting pipes (622, 622) and the rear axle (9) cooperate, and the flat fork joints (612, 612) are installed between the left and right connecting pieces (621, 621 '), and are connected with the connecting pipes (622, 622 ) is a detachable connection; the front end of the flat fork (611) is hinged to the rear lower end of the main frame (1), and the flat fork joints (612, 612) or connecting piece assembly (62) are connected to the main frame (1) Elastic connection between left and right shock absorbers (63,63).

3. The miniature tricycle frame according to claim 1, characterized in that there are two connecting pipes (622), and the guide (61) is a guide plate (613) with a sleeve, with a sleeve The front end of the pipe guide plate (613) is hinged with the rear lower end of the main frame (1), and its rear end is connected with two connecting pipes (622, 622), and is connected to the main vehicle through the left and right shock absorbers (63, 63). Frame (1) is elastically connected.

4. The miniature tricycle frame according to claim 1, characterized in that there are two connecting pipes (622), and the guide (61) is a groove-shaped guide plate (614), and the groove-shaped guide The rear end of the plate (614) is horizontally provided with 3 round holes, the middle round hole is in clearance fit with the rear axle 9, and the other two round holes are used for installing the connecting pipes (622, 622), and the front end of the grooved guide plate (614) is in contact with the rear axle 9. The rear lower end of the main vehicle frame (1) is hinged, and its rear end is elastically connected with the main vehicle frame (1) through left and right shock absorbers (63, 63).

5. The miniature tricycle frame according to claim 1, characterized in that there are two connecting pipes (622), and the guide piece (61) includes a guide pipe (615) and a guide block (617) , the guide tube (615) is fixed on the rear lower end of the main frame (1), a round bar protrudes longitudinally from the front end of the guide block (617) and is hinged with the guide tube (615), and the rear end of the guide block (617) is horizontally provided with 3 Circular hole, the circular hole in the middle of it is clearance fit with the rear axle (9), and the other two circular holes are used to install connecting pipes (622, 622), and the connecting pipes (622, 622) pass through the left and right shock absorbers (63, 622). 63) elastically connected with the main frame (1).

6. The miniature tricycle frame according to claim 1, characterized in that there are two connecting pipes (622), and the guide (61) includes a T-shaped guide rod (616) and a guide block ( 617), the rear end of the guide block (617) is horizontally provided with 3 round holes, the middle round hole is clearance fit with the rear axle (9), and the remaining two round holes are used to install the connecting pipes (622, 622), T-shaped The T-shaped end of the guide rod (616) is hinged with the rear lower end of the main frame (1), and the other end is hinged with the round pipe protruding longitudinally from the front end of the guide block (617). The connecting pipes (622, 622) pass through the left and right shock absorbers (63,63) are elastically connected with the main vehicle frame (1).

7. A miniature tricycle, comprising a vehicle frame, said vehicle frame comprising a main frame (1), a center shaft sleeve (10) mounted on the main frame (1) and a The rear axle connection device (6) at the end is characterized in that: the main frame (1) includes a front tube (2) and an L-shaped frame (31) or a U-shaped frame (32), an L-shaped frame (31) or The U-shaped frame (32) is bent with left and right double pipes, and the double pipes are connected by 2-3 horizontal pipes, and its front end is connected with the front pipe (2) to form an upward V-shaped opening or U-shaped, the central shaft sleeve (10) is mounted on an L-shaped frame (31) or a U-shaped frame (32);

8. The miniature tricycle according to claim 7, characterized in that: brakes (8) are symmetrically installed on the outer sides of the left and right connecting pieces (621, 621'), and the brakes (8) are Choose one of bicycle brakes, expansion brakes or disc brakes.