Summary of the invention
The object of the invention is to provide a kind of structure more effectively, the more stable happy driving of rear shock-absorbing children while using. the object of the present invention is achieved like this, the happy driving of rear shock-absorbing children, comprise roof beam structure, rocker, front-wheel, rear wheel frame, trailing wheel, seat, two universal wheels, dome and brake, it is characterized in that: roof beam structure comprises stringer pipe, rotating cylinder, left and right handles, bucket circle, punching with holes and two grips, stringer pipe is that an elliptical tube processes, the top and bottom of stringer pipe front end have arc opening, the left and right sides of stringer pipe rear end has arc opening, the arc opening of stringer pipe front end and rotating cylinder welding, rotating cylinder is the circular tube shaped parts that a bearing is respectively inlayed at upper and lower two, the below welding barrel circle at stringer pipe rear portion, bucket circle is the blank of a seamless pipe, the arc opening welding left and right handles of stringer pipe rear end, left and right handles be the oriented front upper place of double headed roller to the pipe of right angle arc-shaped bend, a punching with holes is welded in the top at left and right handles middle part and the top of stringer pipe rear end, bucket circle is rotationally connected with rear wheel frame, rear wheel frame is made up of H type frame and spring, H type frame is that two bar shaped band irons and a rectangle punching are welded into H type, it is one mutual to perforation that the upper, middle and lower position of H type frame two sides respectively has, H type frame upper part mutual to perforation by lock bolt is rotationally connected with bucket circle, between the rectangle punching of H type frame and the rear end of stringer pipe, connect the spring of rear wheel frame, what under H type frame, position was mutual passes through lock bolt to connect trailing wheel to perforation, punching with holes connects a seat, the each socket in two one grip of left and right handles, rocker comprises waveform cross bar, minor axis, front fork, two forks, two barrels, two prothecas and two stifles, waveform cross bar is that a pipe is made to three continuous continuous arc-shaped bends, three arc-shaped bends form wavy, a minor axis is welded in top in the middle of waveform cross bar, minor axis is that the centre on top is with screw, the cylindrical part of bottom band cast evagination, the minor axis that is welded in waveform cross bar becomes vertical, meet at right angles with the plane forming of waveform cross bar and two forks, a front fork is welded in below in the middle of waveform cross bar, front fork is that two downward bending of a strip band iron becomes flute profile, it is one mutual to perforation that the bottom of front fork flute profile two sides has, what front fork was mutual passes through lock bolt to connect front-wheel to perforation, rear side in the middle of waveform cross bar welds two forks backward, fork is the pipe of a contoured shape bending, the paired shape of two forks is arranged to double swing-bar, close up the front portion of two forks, diverge at the rear portion of two forks, the each welding in rear end one barrel of two forks, the barrel that is welded in fork rear end is presented oblique after front lower, the each socket in two one protheca of waveform cross bar, the minor axis of rocker penetrates from bottom to top in the hole of rotating cylinder two bearings, dome in the top of minor axis and the top cover of rotating cylinder again, penetrate with a hexagon socket head cap screw in the hole of dome, and be screwed in the screwed hole of minor axis, two universal wheels are fastened in the barrel of fork rear end by wheel fork bolt, a stifle is filled at the top of fork rear end barrel, the brake lever of brake is installed on left and right handles, and the brake block of brake is installed on rear wheel frame, and brake cable connects brake lever and brake block, and brake block system is stopped in trailing wheel.
The invention has the beneficial effects as follows: the present invention has adopted double swing-bar, making front-wheel and trailing wheel can be that single opinion arranges, rear wheel frame adopts H type frame and spring to coordinate, while pedaling before bipod of the present invention is rotated, double swing-bar swings the better effects if advancing, and people sits and have again on the seat shock-absorbing effect, the present invention is simple and reasonable, the smoothness that has attractive appearance, playability are strong; Stable performance of the present invention, technique are effective, and have the advantage on cost.
Detailed description of the invention
According to Fig. 1,3, the happy driving of described rear shock-absorbing children, comprises roof beam structure 1, rocker 2, front-wheel 3, rear wheel frame 4, trailing wheel 5, seat 6, universal wheel 7, dome 8 and brake 9;
Described roof beam structure 1, comprise stringer pipe 11, rotating cylinder 12, left and right handles 13, bucket circle 14, punching 15 with holes and grip 16, described stringer pipe 11 is that an elliptical tube processes, the top and bottom of described stringer pipe 11 front ends have arc opening, the arc opening of described stringer pipe 11 front ends is corresponding with described rotating cylinder 12 external diameters, the left and right sides of described stringer pipe 11 rear ends has arc opening, the arc opening of described stringer pipe 11 rear ends is corresponding with the external diameter of described left and right handles 13, described stringer pipe 11 has Process for Effluent hole near the below of front end, described stringer pipe 11 is opened and is respectively had a perforate near the upper and lower of rear end, and, described stringer pipe 11 is a slotted hole near the perforate of below, rear end, described stringer pipe 11 is a circular hole near the perforate of top, rear end, arc opening and the rotating cylinder 12 of described stringer pipe 11 front ends weld, described rotating cylinder 12 with described stringer pipe 11 nose circle nock welding, be vertical vertical with described stringer pipe 11, described rotating cylinder 12, a bearing is respectively inlayed at the upper and lower two of parts that is a circular tube shaped, the circular tube shaped parts of described rotating cylinder 12, be the each car of inwall at one section of upper and lower two of metal circular tube have can embedded bearing step, welding in the middle of the arc opening of described stringer pipe 11 rear ends and left and right handles 13, described left and right handles 13 is the oriented front upper place of double headed roller pipes to right angle arc-shaped bend, the below welding barrel circle 12 at described stringer pipe 11 rear portions, described bucket circle 12 is blanks of a seamless pipe, the described bucket welding with the below at described stringer pipe 11 rear portions encloses 12, be laterally vertical with described stringer pipe 11, a punching 15 with holes is welded in the top at described left and right handles 13 middle parts and the top of described stringer pipe 11 rear ends, described punching with holes 15, respectively to have a punching at close the right and left and the middle part of a rectangular metal sheet, the punching at described punching with holes 15 middle parts is corresponding near the circular hole of top, rear end with described stringer pipe 11, the each socket in two one grip 16 of described left and right handles 13, described punching with holes 15 is by bolt and nut connecting chair 6.
Described grip 16 is universal grips of the use of child's bicycle, described seat 6 be the top of backrest with the left and right at handgrip hole, cushion middle part respectively with children's blown type seat of a connecting hole.
Described rocker 2 comprises waveform cross bar 21, minor axis 22, front fork 23, fork 24, barrel 25, protheca 26 and stifle 27, described waveform cross bar 21 is that a pipe is pressed into three continuous continuous arc-shaped bends, three arc-shaped bends of described waveform cross bar 21 form wavy, top welding minor axis 22 in the middle of described waveform cross bar 21, described 22 one-tenth post shapes of minor axis, the centre on described minor axis 22 tops is with screw, the bottom band cast evagination of described minor axis 22, 22 one-tenth of described minor axises that weld with described waveform cross bar 21 are vertical, meet at right angles with the plane forming of the fork 24 described in described waveform cross bar 21 and two, a front fork 23 is welded in below in the middle of described waveform cross bar 21, described front fork 23 is that two downward bending of a strip band iron becomes flute profile, it is one mutual to perforation that the bottom of described front fork 23 flute profile two sides has, what described front fork 23 was mutual passes through lock bolt to connect front-wheel 3 to perforation, rear side in the middle of described waveform cross bar 21 welds two forks 24 backward, described fork is the pipe of a contoured shape bending, the paired shape of fork 24 described in two is arranged to double swing-bar, described in two, close up the front portion of fork 24, described in two, diverge at the rear portion of fork 24, the each welding in the rear end of fork 24 one barrel 25 described in two, be welded in fork 24 rear ends described in two two described in barrel present oblique after front lower, described barrel 25 is blanks of seamless pipe, in blank pore, attack screw thread again, barrel 25 described in two described in two of fork 24 rear ends, form the angle of 60-70 ° forward with ground level.
Described front-wheel 3 is PU wheels of plastic wheel hub, a bearing is respectively inlayed in the both sides of the core wheel of PU wheel, between two bearings, serve as a contrast a lining ring, protheca 26 described in the each socket one in two of described waveform cross bar 21, described protheca 26, it is the universal grip of the use of child's bicycle, described minor axis 22 penetrates from bottom to top in the hole of described rotating cylinder 12 two bearings, dome 8 in the top of described minor axis 22 and the top cover of described rotating cylinder 12 again, penetrate in the hole of described dome 8 with a hexagon socket head cap screw again, and be screwed in the screwed hole of described minor axis 22.
Described rear wheel frame 4 is made up of H type frame and spring, described H type frame is that two bar shaped band irons and a rectangle punching are welded into H type, it is one mutual to perforation that the upper, middle and lower position of described H type frame two sides respectively has, the below of the mutual rectangle punching that is positioned at described H type frame to boring a hole at middle part, described H type frame two sides, there is a punching front portion of the rectangle punching of described H type frame, there is a screwed hole at the rear portion of the rectangle punching of described H type frame, what described H type frame upper part was mutual is rotationally connected by lock bolt is enclosed to 12 with described bucket perforation, the screwed hole of the rectangle punching of described H type frame is upwards twisted and is connect a bolt, on the bolt of described H type frame rectangle punching, be socketed the spring of described rear wheel frame 4, bolt in the punching of described H type frame rectangle penetrates in described stringer pipe 11 in the slotted hole near rear end again, and, utilize the circular hole of described stringer pipe 11 near rear end, on the bolt of described H type frame rectangle punching, twist and connect an Anti-slip nut location, be socketed on the spring of the described rear wheel frame 4 on described H type frame rectangle punching bolt, be positioned at the top of described H type frame rectangle punching and the below of described stringer pipe 11 rear ends, what under described H type frame, position was mutual passes through lock bolt to connect trailing wheel 5 to perforation.
Described trailing wheel 5 is PU wheels of plastic wheel hub, a bearing is respectively inlayed in the both sides of the core wheel of PU wheel, between two bearings, serve as a contrast a lining ring, described dome 8, is middle part upthrow, the middle vinyl cover shape part that connects vertical through holes with cylindrical bore, cylindrical bore downwards.
Described universal wheel 5, comprise wheel fork part, wheel and to lock bolt, described wheel fork part comprises plastics wheel fork, two-wheeled fork bearing, spring washer and wheel fork bolt, respectively there is a counterbore centre of the top and bottom at the top of described plastics wheel fork, between two counterbores of described plastics wheel fork, there is a through hole, described plastics wheel fork two is pitched lower end to be had mutual to perforation, described plastics wheel fork two fork inner sides perforation place is respectively enclosed with prominent, in the counterbore of the top and bottom at described plastics wheel fork top, respectively inlay and take turns fork bearing, in the through hole at described plastics wheel fork top, place spring washer, described wheel fork bolt penetrates in the endoporus of two-wheeled fork bearing at described plastics wheel fork top and in spring washer from bottom to top, the described of wheel fork part described in two taken turns to fork bolt from bottom to top, be screwed into be respectively welded in fork 24 described in two rear end two described in barrel 25 in, described wheel is that respectively take turns with the PU of a bearing on a middle two sides, between the two bearings of described wheel, be also lined with lining ring, wheel described in two by two pairs to lock bolt to be screwed to connect pitch lower end in plastics wheel fork two described in two mutual to perforation in, the top of the described barrel 25 of described fork 24 rear ends is plugged with stifle 27.
Described barrel stifle 27 is plastic injection pieces, described 27 one-tenth mushrooms of barrel stifle, the top of described barrel stifle 27 is the round pie with middle upthrow, the bottom of described barrel stifle 27 is two disks that discharge up and down, the centre of the round pie on two disks centres and top is connected by montant, described barrel stifle 27 external diameters of bottom two disks and the screwed hole close-fitting of described barrel 25.
Described brake 9 comprises brake lever, brake cable, brake block, spring and eye bolt, brake lever is installed on described left and right handles 13, described brake block is that a tubule is welded at the middle part of the band iron of an arc-shaped bend, there is a right-angle bending front of described brake block, one headband one circular hole of right-angle bending, eye bolt penetrates in the circular hole of one of brake block right-angle bending, the tubule of described brake block passes through lock bolt, with mutual perforation is rotationally connected in described rear wheel frame 4 middle parts, one described of brake cable connects brake lever, the other end of described brake cable, penetrate in the punching of described rear wheel frame 4H type frame rectangle punching, penetrate again in spring and the hole of eye bolt in, and with nut twist connect fixing.