CN2187579Y - Back type straight line driving bicycle - Google Patents

Abstract

The utility model discloses a back type straight line driving bicycle, wherein, the right and the left sides of a front fork frame are respectively provided with a slide plate frame which is provided with a pedal; the pedal carries out up and down movement along a slot of the slide plate frame; a rope-disk on a back roller is driven to rotate by a driving rope arranged on the pedal; a back wheel is driven to rotate by the rope-disk through a ratchet pawl, a fluted-disc and the back roller. One end of a clutch rope is connected with a clutch handle, and the other end of the clutch rope is connected with a clutch body arranged on the back roller. The clutch rope is used for controlling the ratchet pawl and the fluted-disc to engage and disengage and adjusting the rope-disk to rotate alone. A supporting rod of a bicycle frame is provided with a backrest and a seat pad which can carries out 90 DEC turn from top to bottom. Front and back wheels are provided with semi-circle box type fenders, and a streamline windscreen is arranged on the front of a bicycle body.

Description

Back type straight line driving bicycle

The utility model relates to a kind of bicycle and man, and specifically describing is to change the backrest type linear drives bicycle that the cycle chain transmission is a cord drive.

Sell in the market, the bicycle that people use has the kind of style of all kinds, various bicycles respectively have its merits and faults, and chain transmission mode is all adopted in its transmission, for the bicycle in the present use, exist subject matter to be, resistance is big in advancing, and runs into when raining, and turns round and look at head and has no time to attend to pin, when riding middle and long distance, the people is tired easily.

The purpose of this utility model is to provide a kind of backrest type linear drives bicycle that chain gear is a cord drive that changes.

To achieve these goals, the utility model adopts following technical scheme: a kind of backrest type linear drives bicycle, comprise front and back wheel, vehicle frame, fixing vehicle wheel the front and back crotch, be fixed on the front forked frame brake gear of schoolbag frame and front and back wheel behind tap, the car, it is characterized in that:

A. the right and left of front forked frame is respectively adorned a slide plate frame that has pedal, pedal is along slide plate frame groove up-and-down movement, be connected with the driving rope on the pedal, driving rope is connected on the left and right sides cheese of back roller by the fixed pulley coiling that is contained in front forked frame top and vehicle frame bottom, left and right sides cheese is on the one hand by ratchet and fluted disc clutch, fluted disc combines by screw thread with the back roller, left and right sides cheese on the other hand by key be enclosed within afterwards roller on the circular cone straight-tooth combine, circular cone straight-tooth and gap bridge circular cone straight-tooth are meshing.

B. clutch rope one termination clutch handle, the other end is connected with left and right sides clutch body on being contained in the back roller by the fixed pulley that is contained on front forked frame and the vehicle frame, clutch body by clutch rack, formed by steel ball that clutch rack drives and the clutch discs that driven by steel ball, be fixed with the axle of control ratchet on the clutch discs.

C., can upwards overturn 90 ° seat cushion and the backrest that can align up and down are housed on the vehicle frame back stay.

D., semicircle box fender is housed on the front and back wheel.

E. the stream line pattern air baffle is equipped with in the vehicle body front.

The utility model good effect is, sets up air baffle and dwindles people and the moving vertical area of air of the bulk convection of car, reduces air-assisted coefficient, can also play rainproof safety effect.Increase backrest, improve traveling comfort.Use cord drive, reduce the center of gravity of cyclist and Che.

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

Fig. 1 is the utility model structural representation;

Fig. 2 is the structural representation of roller behind the utility model;

Fig. 3 is Fig. 2 A-A cutaway view.

As Figure 1-3.The utility model comprises front and back wheel, vehicle frame, the front and back crotch of fixing vehicle wheel, be fixed on tap on the front forked frame, the brake gear of schoolbag frame and front and back wheel behind the car, the utility model is characterised in that, the right and left of front forked frame 17 is respectively adorned a slide plate frame 4 that has pedal 3, pedal is along slide plate frame groove 41 up-and-down movements, be connected with on the pedal and drive rope 7, driving rope is connected on the left and right sides cheese 121 of back roller 12 with fixed pulley 23 coilings that are contained in vehicle frame 8 bottoms by being contained in front forked frame top fixed pulley 22, left and right sides cheese is on the one hand by ratchet 122 and fluted disc 123 clutches, fluted disc combines by screw thread with the back roller, left and right sides cheese combines with being enclosed within left circular cone straight-tooth 125 and the right circular cone straight-tooth 126 of back on the roller by right and left key 124 on the other hand, and left and right sides circular cone straight-tooth and gap bridge circular cone straight-tooth 127 are meshing.For example pedal downwards when left foot, left cheese is put rope on the back roller, by left pawl and fluted disc, drives wheel, and at the same time, left cheese drives left circular cone straight-tooth and rotates by left button on the roller of back, drives the right circular cone straight-tooth by gap bridge circular cone straight-tooth and rotates.By right button, make right cheese do oppositely to change, promptly left cheese is put rope simultaneously, right cheese wiring.When right crus of diaphragm is pedaled downwards, situation is with above-mentioned identical.About make reverse motions all the time.In this motion process, left and right sides ratchet plays the overdrive clutch effect.

The utility model also is equipped with arrangement of clutch, and clutch rope 6 one terminations are fixed on the clutch handle 19 on the handlebar 18, and the other end is by fixed pulley 22 and fixed pulley 23, is connected with clutch body 128 on being contained in back roller 12.When holding clutch handle with a firm grip, tighten up left and right sides power-transfer clutch frame 129, by left and right sides steel ball 130, make left and right sides power-transfer clutch 131 outside, thereby it is outside to make the Y-axis 132 that is fixed on the clutch plate of the left and right sides drive ratchet, and left and right sides ratchet and left and right sides fluted disc are broken away from simultaneously, and producing left and right sides cheese can rotate separately, but wheel does not change, convenient starting.

Seat cushion 9 of the present utility model is contained in vehicle frame pole 81 bottoms, and seat cushion can upwards overturn 90 °, and backrest 16 is equipped with on vehicle frame pole 81 tops, and backrest can be aligned up and down.

Semicircle box mudwing 2 and semicircle box mudwing 10 are housed respectively on front vehicle wheel 21 of the present utility model and the rear wheel 14.

Stream line pattern air baffle 1 is equipped with in the utility model vehicle body front.Air baffle top is fixed on front forked frame top by connecting strap 20, and the bottom is fixed on the front wheel spindle by connecting strap 5.

Claims (1)

1. A kind of backrest type linear drives bicycle, comprise front and back wheel, vehicle frame, fixing vehicle wheel the front and back crotch, be fixed on the front forked frame brake gear of schoolbag frame and front and back wheel behind tap, the car, it is characterized in that:

   A. the right and left of front forked frame (17) is respectively adorned a slide plate frame (4) that has pedal (3), pedal is along slide plate frame groove (41) up-and-down movement, be connected with on the pedal and drive rope (7), driving rope is connected on the left and right sides cheese (121) of back roller (12) by fixed pulley (22) that is contained in front forked frame top and fixed pulley (23) coiling that is contained in vehicle frame (8) bottom, left and right sides cheese is on the one hand by ratchet (122) and fluted disc (123) clutch, fluted disc combines by screw thread with the back roller, left and right sides cheese on the other hand by key (124) be enclosed within the back roller on circular cone straight-tooth (125,126) combination, circular cone straight-tooth and gap bridge circular cone straight-tooth (127) are meshing;

   B. clutch rope (6) one termination clutch handles (19), the other end by fixed pulley (22,23) be contained in the left and right sides clutch body (128) of back on the roller and be connected, clutch body by clutch rack (129), formed by steel ball (130) that clutch rack drives and the clutch discs (131) that driven by steel ball, be fixed with the axle (132) of controlling ratchet on the clutch discs;

   C., can upwards overturn 90 ° seat cushion (9) and the backrest (16) that can align up and down are housed on the vehicle frame pole (81);

   D. on the front and back wheel (21,14) semicircle box fender (2,10) is housed;

   E. stream line pattern air baffle (1) is equipped with in the vehicle body front.

Images