CN2199116Y - Vibration damper for manpower cart - Google Patents

Abstract

The utility model discloses a shockproof device used on a bicycle or a tricycle for shock prevention. The device adopts the structure that two pressure springs 2 and 5 are arranged between a fixed vertical tube 1 for a saddle and a fixed steel tube 3 for a cycle frame. The utility model changes the rigid connection of the saddle and the cycle frame of the original bicycle or the tricycle and performs buffering and shock elimination functions for riders on uneven roads, and thus, satisfies the cosiness requirement of the riders.

Description

Vibration damper for manpower cart

The utility model relates to a kind of shock absorbing apparatus in the human powered vehicle manufacturing technology field.

The present rickshaw that uses, as bicycle, seat saddle fixed riser on the three-wheel vehicle and vehicle frame fixedly steel pipe are the rigidity bonded assemblys, spring in the seat saddle has omited the buffer action, all the other do not have the moving device of shock-absorbing in car load, therefore, bicycle, be subjected to the hardship of jolting of vertical tremor when three-wheel vehicle travels deeply the uneven part rider of road, influenced the consumption of manpower.

The purpose of this utility model is that bicycle, three-wheel vehicle are being deposited shortcoming, the design that does not have the shock absorbing apparatus function on making, and provides to utilize seat saddle fixed riser and vehicle frame a kind of automatic shock-proof device that fixedly device has the pressure spring elimination to shake between the steel pipe.

The utility model adopts following technology implementation scheme to finish above-mentioned purpose, designed a kind of saddle fixed riser grafting vehicle frame fixedly steel pipe be that bearing fit connects, fixedly set up pressure spring between the cap of upper end with seat saddle fixed riser of steel pipe at vehicle frame, fixedly another pressure spring is arranged the lower end of steel pipe inner chamber at vehicle frame, this pressure spring upper end roof pressure an of lower end of saddle fixed riser, the action of gravity that seat saddle fixed riser is subjected to is in two pressure springs, play the buffering and shock preventing effect, the purpose of vibrations when eliminating by bike.

The utility model has the advantages that simple in structurely, easily manufactured, need only increase by two pressure springs, productive costs is low, but the equal adapted of bicycle and three-wheel vehicle.It is the separate part in the bicycle accessories, and interchangeability is good.Use this shock absorbing apparatus, changed fixedly being rigidly connected of steel pipe of the fixing person in charge of present rickshaw seat of honour saddle and vehicle frame, the effect that all can reach buffering and shock preventing light or heavy body weight.

Below, in conjunction with the accompanying drawings and embodiments technology contents of the present utility model is further described below.

Fig. 1 is the utility model topology view.

Among the figure: 1---seat saddle fixed riser; 2---big pressure spring; 3---vehicle frame is steel pipe fixedly; 4---the flat steel pin; 5---little pressure spring; 6---elongated slot; 7---cap.

Shown in the accompanying drawing: the upper part of seat saddle fixed riser 1 is that cap shape and straight tube two parts are formed, and straight-tube portion is inserted into the fixedly inner chamber of steel pipe 3 of vehicle frame, and a saddle fixed riser and vehicle frame fixedly steel pipe 3 bearing fit that can make retractility connect.Fixedly be equipped with big pressure spring 2 between the cap 7 of the upper end of steel pipe 3 and seat saddle fixed riser 1 at vehicle frame, seat saddle fixedly steel pipe 1 passes big pressure spring 2 and is inserted in seat tube 3 inner chambers, one of the lower end be contained in vehicle frame fixedly little pressure spring 5 roof pressures in steel pipe 3 inner chambers contact, for make a saddle fixed riser 1 and vehicle frame fixedly steel pipe 3 at flexible location bearing fit, a flat pin-and-hole is bored in the bottom of present saddle fixed riser 1, assembling flat steel pin 4, flat steel pin 4 cooperates as slight clearance with the flat pin-and-hole.Fixedly open an elongated slot in the bottom of steel pipe 3 at vehicle frame, the seat saddle is fixing be responsible for 1 with vehicle frame fixedly steel pipe 3 be fitted into the back mutually and penetrate vehicle frame fixedly in elongated slot and the flat pin-and-hole of saddle fixed riser 1 of steel pipe 3 with flat steel pin 4.Fixedly elongated slot and the flat steel pin 4 of steel pipe 3 is for face contacts bearing fit to vehicle frame, and flat steel pin 4 can prevent a saddle fixedly square tube 1 and the fixedly radially rotation between the steel pipe 3 of vehicle frame, and the seat saddle on top is swung, and keeps by bike firm.

Claims (2)

1, a kind of rickshaw shock absorbing apparatus, mainly include a saddle fixed riser (1), vehicle frame is steel pipe (3) fixedly, both are that bearing fit connects, it is characterized in that the fixedly upper end of steel pipe (3) of vehicle frame, between the cap (7) with seat saddle fixed riser (1) big pressure spring (2) is arranged, little pressure spring (5) is in the fixing lower end of steel pipe (3) inner chamber of vehicle frame, and the upper end roof pressure an of lower end of saddle fixed riser (1).

2, by the described a kind of automatic shock-proof device of claim 1, it is characterized in that there is the fixedly elongated slot (6) of steel pipe (3) of flat steel pin (4) and vehicle frame the fixing lower end of being responsible for (1) of present saddle, be face contact bearing fit.

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