CN2298195Y

CN2298195Y - Racing bicycle

Info

Publication number: CN2298195Y
Application number: CN 97214053
Authority: CN
Inventors: 廖道诚
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-07
Filing date: 1997-04-07
Publication date: 1998-11-25
Anticipated expiration: 2007-04-07

Abstract

The utility model relates to a racing car. The utility model is characterized in that a frame comprises an upper car beam, a lower car beam, a front tube, and a front fork vertical tube; a front wheel flexible mechanism and a rear wheel flexible mechanism are respectively arranged between the frame and a front and a rear wheels; the front wheel flexible mechanism comprises a front tripod, an upper fixing tube, and a spring; the rear wheel flexible mechanism comprises a rear tripod and a spring; a driving device comprises a pedal anti-collision mechanism; the pedal anti-collision mechanism comprises a connecting tube, a central tube, a crank, and pedals; the upper end of the pedal anti-collision mechanism is fixed on the frame, and the lower end is supported on the lower car beam. Because the utility model is provided with the front wheel flexible mechanism, the rear wheel flexible mechanism, and the pedal anti-collision mechanism, the utility model has the advantages of shock absorption and anticollision.

Description

Racing car

The utility model belongs to the bicycle field, and what be specifically related to is a kind of racing car that is suitable for fast running.

The racing car of fast running must have good damping, cushions and dodge rugged ground-surface performance, but existing racing car only depends on saddle and tire to come damping.

The purpose of this utility model is to overcome the deficiency of the above prior art, provides the good and stretcher of a kind of damping performance can dodge the racing car of obstacle automatically.

The purpose of this utility model is achieved in that the utility model comprises front-wheel, trailing wheel, vehicle frame, saddle, steering hardware and transmission device, vehicle frame comprises the beam of getting on the bus, the beam of getting off, preceding pipe and vertical tube of front fork, get on the bus beam and the front end of beam of getting off be fixed in before on the pipe, the tail end of the beam of getting off is captiveed joint with the afterbody of the beam of getting on the bus; Between vehicle frame and front-wheel and trailing wheel, also be respectively equipped with front-wheel elastic mechanism and trailing wheel elastic mechanism, the front-wheel elastic mechanism comprises preceding spider, goes up stationary pipes and spring, each periphery of preceding spider and Vee formation frame all is two-tube, preceding spider is connected with the lower end hinge of vertical tube of front fork in place, a summit, the place is connected with the wheel shaft of front-wheel in a summit, last stationary pipes is fixed on the vertical tube of front fork, is connected with spring between the top of last stationary pipes and preceding spider; The trailing wheel elastic mechanism comprises Vee formation frame and spring, and the Vee formation frame is connected with the beam hinge of getting off in place, summit, locates to be connected with the wheel shaft of trailing wheel in a summit, also is provided with spring between the top of the afterbody of the beam of getting on the bus and Vee formation frame; Transmission device comprises the stretcher anticollision mechanism, the stretcher anticollision mechanism comprises connecting leg, base pipe, crank and stretcher, the upper end of connecting leg is fixed on the vehicle frame by rotating shaft, its lower end and base pipe are fixed, base pipe is connected the back with the crank at two ends by axle and is held in the palm on the beam of getting off, when travelling on uneven road surface,, influence cruising so can avoid stretcher and ground sharp impacts because base pipe, crank and stretcher can upwards rotate around the rotating shaft of connecting leg upper end.

The utility model so the utlity model has damping and crash-proof advantage, meets the characteristics of racing car fast running owing to designed front-wheel elastic mechanism, trailing wheel elastic mechanism and stretcher anticollision mechanism between vehicle frame and front-wheel and trailing wheel.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the integral structure scheme drawing of the utility model embodiment.

Fig. 2 is the annexation scheme drawing of Vee formation frame and vehicle frame among the utility model embodiment.

Fig. 3 is the structural representation of the stretcher anticollision mechanism of the utility model embodiment.

Fig. 4 is the scheme drawing of the solid tyre of front-wheel among the utility model embodiment.

Fig. 5 is the scheme drawing of the solid tyre of trailing wheel among the utility model embodiment.

Fig. 6 is the secondary transmission scheme drawing of the utility model embodiment driving system.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, the utility model embodiment comprises front-wheel 1, trailing wheel 2, vehicle frame, saddle 3, steering hardware and transmission device.

As depicted in figs. 1 and 2, vehicle frame comprises the beam 4 of getting on the bus, the beam 5 of getting off, preceding pipe 6 and vertical tube of front fork 7, the beam 4 of getting on the bus is two-tube with the beam 5 of getting off, and the beam 4 of getting on the bus in front end and tail end, the beam 5 of getting off in the two-tube U-shaped that is connected to form of front end, on the pipe 6, the tail end of the beam 5 of getting off was captiveed joint with the afterbody of the beam 4 of getting on the bus before the front end of the beam 4 and the beam 5 of getting off of getting on the bus was fixed in.

As depicted in figs. 1 and 2, between vehicle frame and front-wheel 1 and trailing wheel 2, also be respectively equipped with front-wheel elastic mechanism and trailing wheel elastic mechanism, the front-wheel elastic mechanism comprises preceding spider 8, last stationary pipes 9 and spring 10, each periphery of preceding spider 8 and Vee formation frame 11 all is two-tube, preceding spider 8 is connected by rotating shaft with the lower end of vertical tube of front fork 7 in place, a summit, captive joint with the wheel shaft of front-wheel 1 in the place in a summit, last stationary pipes 9 is fixed on the vertical tube of front fork 7, be equipped with the spring dead plate 12 of tape shape screw hole in the top of last stationary pipes 9 and preceding spider 8, spring 10 usefulness screws are fixed between the spring dead plate 12 up and down, owing to be provided with the bar shaped screw hole, spring 10 can move forward and backward along screw hole and regulate, be fixed with spacing crotch 13 on vertical tube of front fork 7, the reinforced pipe of two-tube of preceding spider 8 tops is hooked with spacing in the below of spacing crotch 13; The structure of trailing wheel elastic mechanism and front-wheel elastic mechanism are similar, comprise Vee formation frame 11 and spring 10, Vee formation frame 11 is connected by rotating shaft with the beam 5 of getting off in place, summit, the place is connected with the wheel shaft of trailing wheel 2 in a summit, also be provided with the spring dead plate 12 of tape shape screw hole and the spring 10 between two spring dead plates 12 up and down in the top of the afterbody of the beam 4 of getting on the bus and Vee formation frame 11, afterbody at the beam 5 of getting off is fixed with spacing crotch 13 equally, and the reinforced pipe of two-tube of Vee formation frame 11 tops is hooked with spacing in the below of spacing crotch 13.Since front-wheel elastic mechanism and trailing wheel elastic mechanism be provided with spring 10 and with car body between be connected with rotating shaft, the present embodiment cushion effect is strong, good damping effect.

As shown in figures 1 and 3, the transmission device of present embodiment comprises the stretcher anticollision mechanism, the stretcher anticollision mechanism comprises connecting leg 14, base pipe 15, crank 16 and stretcher 17, the upper end of connecting leg 14 is fixed on get on the bus beam 4 and the reinforced pipe between the beam 5 of getting off by rotating shaft, its lower end and base pipe 15 are fixing, base pipe 15 is connected the back with the crank 16 at two ends by axle and is held in the palm on the beam 5 of getting off, when travelling on uneven road surface, because base pipe 15, crank 16 and stretcher 17 can upwards rotate around the rotating shaft of connecting leg 14 upper ends, so can avoid stretcher 17 to influence cruising with the ground sharp impacts.As Fig. 1 and shown in Figure 6, the transmission device of present embodiment is the secondary transmission, comprises nipper wheels 18, middle gear group 19, flywheel 20 and chain 21, and the bearing fixing of middle gear group 19 is on Vee formation frame 11, the purpose of secondary transmission is to increase transmitting ratio, reduces gear diameter.

As shown in Figure 4 and Figure 5, the front-wheel 1 of present embodiment and trailing wheel 2 are solid tyre, and the cross section of front-wheel solid tyre is oval, and when the tilting of car body angle was big more, front-wheel 1 ground contact area was just big more, have so just prevented sliding flying; The cross section of trailing wheel solid tyre is circular, helps load.

Claims

1. racing car, comprise front-wheel (1), trailing wheel (2), vehicle frame, saddle (3), steering hardware and transmission device, it is characterized in that: described vehicle frame comprises the beam of getting on the bus (4), the beam of getting off (5), preceding pipe (6) and vertical tube of front fork (7), the front end of beam (4) and the beam of getting off (5) of getting on the bus is fixed on the preceding pipe (6), and the tail end of the beam of getting off (5) is captiveed joint with the afterbody of the beam of getting on the bus (4); Between vehicle frame and front-wheel (1) and trailing wheel (2), also be respectively equipped with front-wheel elastic mechanism and trailing wheel elastic mechanism, the front-wheel elastic mechanism comprises preceding spider (8), goes up stationary pipes (9) and spring (10), each periphery of preceding spider (8) and Vee formation frame (11) all is two-tube, preceding spider (8) is connected with the lower end hinge of vertical tube of front fork (7) in place, a summit, the place is connected with the wheel shaft of front-wheel (1) in a summit, last stationary pipes (9) is fixed on the vertical tube of front fork (7), is connected with spring (10) between the top of last stationary pipes (9) and preceding spider (8); The trailing wheel elastic mechanism comprises Vee formation frame (11) and spring (10), Vee formation frame (11) is connected with the beam of getting off (5) hinge in place, a summit, the place is connected with the wheel shaft of trailing wheel (2) in summit, also is provided with spring (10) between the top of the afterbody of the beam of getting on the bus (4) and Vee formation frame (11); Described transmission device comprises the stretcher anticollision mechanism, the stretcher anticollision mechanism comprises connecting leg (14), base pipe (15), crank (16) and stretcher (17), the upper end of connecting leg (14) is fixed on the vehicle frame by rotating shaft, its lower end and base pipe (15) are fixing, and base pipe (15) is connected the back with the crank (16) at two ends by axle and is held in the palm on the beam of getting off (5).

2. racing car according to claim 1, it is characterized in that: described beam of getting on the bus (4) and the beam of getting off (5) are two-tube, the get on the bus top, the spring dead plate (12) that the top of going up stationary pipes (9) and preceding spider (8) all is fixed with tape shape screw hole of afterbody, Vee formation frame (11) of beam (4), the two ends of spring (10) are fixed between the corresponding spring dead plate (12); Be respectively equipped with spacing crotch (13) in the front-end and back-end of car body, the below of spacing crotch (13) is hooked preceding spider (8) and Vee formation frame (11) respectively.

3. racing car according to claim 1 and 2 is characterized in that: described front-wheel (1) and trailing wheel (2) are solid tyre, and the cross section of front-wheel solid tyre is oval, and the cross section of trailing wheel solid tyre is circular

4. racing car according to claim 1 and 2, it is characterized in that: described transmission device is the secondary transmission, comprise nipper wheels (18), middle gear group (19), flywheel (20) and chain (21), the bearing fixing of middle gear group (19) is on Vee formation frame (11).

5. racing car according to claim 3 is characterized in that: described driving system is the secondary transmission, comprises nipper wheels (18), middle gear group (19), flywheel (20) and chain (21), and the bearing fixing of middle gear group (19) is on Vee formation frame (11).