CN201105787Y

CN201105787Y - Suitcase type bicycle front body folding mechanism

Info

Publication number: CN201105787Y
Application number: CNU2007201847542U
Authority: CN
Inventors: 孙文进
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-19
Filing date: 2007-10-19
Publication date: 2008-08-27
Anticipated expiration: 2017-10-19

Abstract

The utility model relates to a travel box type folding mechanism for the front body of a bicycle, which comprises a frame in which a transmission mechanism is arranged, a front wheel is connected with the front part of the frame through a front rocker and a rear wheel is arranged at the rear part of the frame. The folding mechanism is characterized in that a box shell is positioned outside the frame and provided with a front door and the lower part of the frame is provided with a brake axle and a locking slide, the locking slider is provided with a dowel and a grab, one end of the brake axle stretches outside of the box shell for installing a brake pedal and the brake axle is fixed with a left guy wheel, a foot brake fitting A, a foot brake fitting B and a right guy wheel in sequence from left to right and the left guy wheel and the right guy wheel are connected with the front door through the left and right opening guy ropes; the foot brake fitting A is tightly fastened with a twine keeper screw and is provided with a spring which is fixed to the frame and a brake line goes through a twine keeper screw hole and is connected with a rear wheel hub; the foot brake fitting A and the foot brake fitting B are respectively provided with bumps and the two bumps contact; the foot brake fitting B is connected with a front rocker guy rope which is connected with the dowel on the locking slide and the grab on the locking slide is matched with a fixture block arranged on the front rocker.

Description

Front body folding mechanism of suitcase type bicycle

Technical field

The utility model relates to bicycle assembly parts, particularly relates to front body folding mechanism of suitcase type bicycle, belongs to the human powered vehicle field.

Background technology

Bicycle has use flexibly, and is low to the road conditions requirement, can pass the lane path, and noiselessness, no exhaust emission also can be tempered muscle power, so the use of bicycle is extremely extensive.But bicycle is only applicable to short range to be used, and adds that again existing ordinary bicycle volume is bigger, carries inconvenience.Therefore, people have developed folding bicycle, and the time spent can not draw in, and volume is little, is easy to carry.But there is following defective in existing folding bicycle: the first, and adopt hand to brake, relatively effort by brake lever; The second, it is all exposed outside to draw each parts of back in, and particularly front vehicle body comprises steering handle, front frame, front-wheel, foot-operated etc., and parts are more, scatters and disappears easily, damages or collide each parts.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming that prior art exists; a kind of brake that is easy to is provided; front-wheel, foot-operated etc. need not be broken; can realize folding but utilize brake pedal to drive; volume is little; favourable keeping protects each parts to avoid the front body folding mechanism of suitcase type bicycle that scatters and disappears and damage.

The technical scheme of the utility model front body folding mechanism of suitcase type bicycle is: comprise vehicle frame, transmission device is installed in the vehicle frame, the vehicle frame front connects front-wheel through front arm, there is trailing wheel the vehicle frame back, it is characterized in that vehicle frame is equipped with the case shell outward, the case shell has the Qianmen, brake axle and locking slide block are equipped with in the vehicle frame bottom, the locking slide block is installed pin and is shaped on grab, brake axle one end stretches out the case shell brake pedal is installed, from left to right fix left wire-drawing wheel on the brake axle successively, service brake accessory first, service brake accessory second and right wire-drawing wheel, a left side, right wire-drawing wheel is through a left side, right front door is opened stay cord and is connected the Qianmen; Service brake accessory first tightens the tight rope screw and spring is housed, and spring is fixed on the vehicle frame, and brake cable is passed tight rope screw hole connection rear-wheel hub and stopped; Service brake accessory first and service brake accessory second are shaped on projection respectively, and two projections are collided; Service brake accessory second connects the front arm stay cord, and the front arm stay cord connects the pin on the locking slide block, and the grab on the locking slide block matches with the fixture block on being contained in front arm.

The utility model front body folding mechanism of suitcase type bicycle utilizes brake pedal to drive, and realizes brake, Qianmen unlatching and three functions of front arm release, and simplified structure helps reduced volume.When stepping on brake pedal, brake axle clockwise rotates, and brake cable is tightened up, and clamps trailing wheel thereby drive the lock arm, and this moment, bicycle was checked; When conter clockwise pull-up brake pedal, brake axle rotates counterclockwise, left and right Qianmen is opened stay cord and is opened the Qianmen automatically, once more during conter clockwise pull-up brake pedal, the front arm stay cord drives the locking slide block and slides backward, and the fixture block that grab is broken away from the front arm is release, at this moment, rotary foldings such as the related front-wheel of front arm, front fork, steering handle can be put into the case shell, front vehicle body is drawn in and is finished.Compared with the prior art, brake is adopted and tramped with one's feet, and is laborsaving, convenient; It is folding that each parts of front vehicle body rely on brake pedal to drive to finish, and need not break and the protection of case shell is arranged after drawing in, can avoid each damage of components.

The utility model front body folding mechanism of suitcase type bicycle, the left and right front frame aft end face of its vehicle frame is installed the lock pin permanent seat respectively, the lock pin permanent seat is equipped with lock pin, lock pin is shaped on loose slot, the lock pin pull bar is arranged in the loose slot, lock pin pull bar one end connects the Qianmen and opens stay cord, and the other end is installed on the left front support of vehicle frame through pull-rod spring; Left and right front frame front end face is equipped with slide bar respectively, and rocking arm is installed on slide bar top, and rocking arm is collided with lock pin and is connected the Qianmen, priming lever spring is equipped with in the slide bar bottom, and priming lever spring contacts with rocking arm, when does not open at the Qianmen, lock pin and rocking arm are collided, when conter clockwise pull-up brake pedal, the Qianmen is opened stay cord and is tightened up, and drives the lock pin pull bar and moves downward, make lock pin move backward, thereby the disengaging rocking arm upsprings because the reset response rocking arm of priming lever spring drives the Qianmen, and the Qianmen is opened.Its described brake axle is shaped on draw-in groove, service brake accessory second is shaped on tapped bore, stop screw passes tapped bore and matches with draw-in groove, prevent that service brake accessory second from rotating around brake axle, because the projection on service brake accessory first and the service brake accessory second is collided, limit service brake accessory first thus and rotate around brake axle, transferring power is reliable.Its described left and right wire-drawing wheel is shaped on key respectively, and key matches with draw-in groove on the brake axle, prevents that left and right wire-drawing wheel and brake axle from rotating mutually.Its described brake axle one end is shaped on locking hole, brake pedal is shaped on axis hole and pin-and-hole, and push button is equipped with in the bottom, be equipped with screw in the push button, screw connects promotes screw, and axis hole matches with brake axle, plug is installed in the pin-and-hole successively, is promoted spring and locking pin, locking pin is shaped on tapped bore, tapped bore with promote screw and be connected, locking pin and locking hole plug, needing only turns right push button pushes away, the drive locking pin moves right, brake pedal just can disassemble from brake axle, and tool free is convenient and swift, can dwindle the volume after the gathering again, be convenient to place.

Description of drawings

Fig. 1 is that the master of the utility model front body folding mechanism of suitcase type bicycle looks scheme drawing;

Fig. 2 is a birds-eye view of the present utility model;

Fig. 3 is the A-A cutaway view of Fig. 1;

Fig. 4 is the B-B cutaway view of Fig. 1;

Fig. 5 is the view after Qianmen unlatching and the front arm release.

The specific embodiment

The utility model discloses a kind of front body folding mechanism of suitcase type bicycle, as Fig. 1, shown in Figure 2, comprise vehicle frame 1, transmission device (as speed-change gear etc.) is installed in the vehicle frame 1, vehicle frame 1 front connects front-wheel through front arm 8, front fork, steering handle etc., there is trailing wheel vehicle frame 1 back, there is cushion the vehicle frame top, its major technology is characterised in that the vehicle frame 1 outer case shell 2 that is equipped with, case shell 2 has Qianmen 21, brake axle 3 and locking slide block 4 are equipped with in vehicle frame 1 bottom, locking slide block 4 is installed pin 41 and is shaped on grab 42, brake axle 3 one ends stretch out the case shell brake pedal 31 are installed, from left to right fix left wire-drawing wheel 32 on the brake axle 3 successively, service brake accessory first 33, service brake accessory second 34 and right wire-drawing wheel 35, a left side, right wire-

drawing wheel

32,35 through a left side, right front door is opened stay cord 5 and is connected Qianmen 21, just can open the Qianmen as long as stay cord 5 is opened at the tension Qianmen, prepares for drawing front vehicle body in; Service brake accessory first 33 tightens tight rope screw 33 1 and spring 332 is housed, and spring 332 is fixed on the vehicle frame 1, and brake cable 6 is passed tight rope screw hole connection rear-wheel hub and stopped; Service brake accessory first 33 is shaped on projection 333,343, two projections respectively with service brake accessory second 34 and collides, and service brake accessory first 33 complements one another with service brake accessory second 34, clamps trailing wheel thereby tension brake cable 6 drives the lock arm; Service brake accessory second 34 connects front arm stay cord 7, front arm stay cord 7 connects the pin 41 on the locking slide block 4, during installation, earlier the limiting stopper of front arm stay cord 7 one ends is placed the spacing hole of service brake accessory second 34, again 41 1 on pin is fixed on the locking slide block 4 in the corresponding mounting hole, front arm stay cord 7 is walked around pin 41 and the fixing clearance of locking slide block 4, limiting stopper and pin 41 are collided, because limiting stopper is bigger with the fixing clearance of locking slide block 4 than pin 41, so front arm stay cord 7 tension back limiting stoppers can not skid off last fixator pins 41 other ends; Grab 42 on the locking slide block 4 matches with the fixture block 81 on being contained in front arm 8, when conter clockwise pull-up brake pedal 31, front arm stay cord 7 drives locking slide block 4 and slides backward, the fixture block 81 that grab 42 is broken away from the front arm 8, make front arm 8 releases, at this moment, rotations such as front arm 8 related front-wheels, front fork, steering handle can be put into case shell 2, front vehicle body is drawn in and is finished.Compared with the prior art, brake is adopted and tramped with one's feet, and is laborsaving, convenient; 2 protections of case shell are arranged after the folding gathering of front vehicle body, can avoid each damage of components.The concrete structure scheme of Qianmen opener is more, can adopt following structure: left front support 11 and right front support aft end face at vehicle frame 1 are installed lock pin permanent seat 91 respectively, lock pin permanent seat 91 is equipped with lock pin 92, lock pin can before and after movable, lock pin is shaped on loose slot 921, lock pin pull bar 93 is arranged in the loose slot, and lock pin pull bar one end connects the Qianmen and opens stay cord 5, and the other end is installed on the left front support 11 of vehicle frame 1 through pull-rod spring 94; Left and right front frame front end face is equipped with slide bar 95 respectively, and rocking arm 97 is installed on slide bar top, and rocking arm is collided with lock pin 92 and is connected Qianmen 21, and priming lever spring 96 is equipped with in the slide bar bottom, and priming lever spring contacts with rocking arm 97.As shown in Figure 1, lock pin 92 is collided with rocking arm 97, and Qianmen 21 is in closed condition; When conter clockwise pull-up brake pedal 31, the Qianmen is opened stay cord 7 and is tightened up, driving lock pin pull bar 93 moves downward, make lock pin 92 move backward, thereby break away from rocking arm 97, because the reset response rocking arm 97 of priming lever spring 96 drives Qianmen 21 and upsprings, Qianmen 21 is opened automatically, and its state as shown in Figure 5.Brake axle 3 can adopt at brake axle 3 fabrication grooves 301 with the fixed connection structure of service brake accessory second 34, and service brake accessory second 34 is shaped on tapped bore, and stop screw 10 passes tapped bore and matches with draw-in groove 301, as shown in Figure 3, also can adopt other scheme.Its left and right wire-

drawing wheel

32,35 is shaped on key 351 respectively, and key matches with draw-in groove 301 on the brake axle 3, limits left and right wire-

drawing wheel

32,35 and rotates on brake axle 3.As shown in Figure 4, brake axle 3 one ends are shaped on locking hole 302, brake pedal 31 is shaped on axis hole 311 and pin-and-hole 312, and the bottom is equipped with push button 12, is equipped with screw 13 in the push button, screw connects promotes screw 14, axis hole 311 matches with brake axle 3, plug 15 (as flat head screw) is installed in the pin-and-hole 312 successively, is promoted spring 16 and locking pin 17, and locking pin 17 is shaped on tapped bore, tapped bore is connected with distribution screw 14, and locking pin 17 plugs with locking hole 302.Push away as long as push button 12 turned right, drive locking pin 17 and move right, brake pedal 31 just can disassemble from brake axle 3, and tool free is convenient and swift, can dwindle the volume after the gathering again, is convenient to placement.

Claims

1, front body folding mechanism of suitcase type bicycle, comprise vehicle frame, transmission device is installed in the vehicle frame, the vehicle frame front connects front-wheel through front arm, there is trailing wheel the vehicle frame back, it is characterized in that the outer case shell (2) that is equipped with of vehicle frame (1), the case shell has Qianmen (21), brake axle (3) and locking slide block (4) are equipped with in vehicle frame (1) bottom, locking slide block (4) is installed pin (41) and is shaped on grab (42), brake axle (3) one ends stretch out case shell (2) brake pedal (31) are installed, from left to right fix left wire-drawing wheel (32) on the brake axle successively, service brake accessory first (33), service brake accessory second (34) and right wire-drawing wheel (35), a left side, right wire-drawing wheel (32,35) through a left side, right front door is opened stay cord (5) and is connected Qianmen (21); Service brake accessory first (33) tightens tight rope screw (331) and spring (332) is housed, and spring (332) is fixed on the vehicle frame (1), and brake cable (6) is passed tight rope screw hole connection rear-wheel hub and stopped; Service brake accessory first (33) is shaped on projection (333,343) respectively with service brake accessory second (34), and two projections are collided; Service brake accessory second (34) connects front arm stay cord (7), and front arm stay cord (7) connects the pin (41) on the locking slide block (4), and the grab (42) on the locking slide block (4) matches with the fixture block (81) on being contained in front arm (8).

2, front body folding mechanism of suitcase type bicycle as claimed in claim 1, the left front support (11) and the right front support aft end face that it is characterized in that vehicle frame (1) are installed lock pin permanent seat (91) respectively, lock pin permanent seat (91) is equipped with lock pin (92), lock pin (92) is shaped on loose slot (921), lock pin pull bar (93) is arranged in the loose slot, lock pin pull bar one end connects the Qianmen and opens stay cord (5), and the other end is installed on the left front support of vehicle frame (1) (11) through pull-rod spring (94); Left and right front frame front end face is equipped with slide bar (95) respectively, and rocking arm (97) is installed on slide bar top, and rocking arm (97) is collided with lock pin (92) and is connected Qianmen (21), and priming lever spring (96) is equipped with in the slide bar bottom, and priming lever spring (96) contacts with rocking arm (97).

3, front body folding mechanism of suitcase type bicycle as claimed in claim 1 is characterized in that described brake axle (3) is shaped on draw-in groove (301), and service brake accessory second (34) is shaped on tapped bore, and stop screw (10) passes tapped bore and matches with draw-in groove (301).

4, front body folding mechanism of suitcase type bicycle as claimed in claim 1 is characterized in that described left and right wire-drawing wheel (32,35) is shaped on key (351) respectively, and key (351) matches with draw-in groove (301) on the brake axle (3).

5, front body folding mechanism of suitcase type bicycle as claimed in claim 1, it is characterized in that described brake axle (3) one ends are shaped on locking hole (302), brake pedal (31) is shaped on axis hole (311) and pin-and-hole (312), and push button (12) is equipped with in the bottom, be equipped with screw (13) in the push button, screw connects promotes screw (14), axis hole (311) matches with brake axle (3), plug (15) is installed in the pin-and-hole (312) successively, promote spring (16) and locking pin (17), locking pin (17) is shaped on tapped bore, tapped bore is connected with distribution screw (14), and locking pin (17) plugs with locking hole (302).