CN2502972Y - Antivibration back chair on bicycle - Google Patents

Abstract

A shockproof rear seat of a bicycle comprises a shock absorber, a rear pedestal, a fixator of the rear pedestal, a rear cushion, a handrail. The shock absorber is provided with a shockproof branch pipe, the outer part of which is equipped with an external shockproof spring, at the lower end of which a lower bracket pipe of the external spring is arranged and an upper bracket pipe of the external spring is arranged at the upper end thereof. A shockproof rod passes through the interior of the upper bracket pipe of the external spring. The upper end of the shockproof rod is connected with the lower end of the rear pedestal. The shock absorber is installed at the lower part of the two sides of the rear pedestal and the handrail is mounted at the front part thereof and the cushion is also included, thus the shockproof rear seat is more suitable for a child to safely take and can remove pain in the buttock caused by bump and is particularly applicable to an uneven road. The utility model has the advantages of simple structure, convenient use, safety and reliability and remarkable shockproof effect.

Description

Shock-absorbing rear seat of bicycle

Technical field

The utility model relates to the technical field of bicycle, belongs to a kind of shock-absorbing rear seat of bicycle.

Background technology

At present, existing bicycle and man, its back seat generally all is rigidly connected, and does not have shock absorption device, when back seat is taken advantage of man-hour, travels down in injustice, can make the people that takes advantage of of back seat feel the pain of buttock of jolting, very uncomfortable, though there is the people that sponge is installed on back seat, play certain cushioning effect, then can not tackle the problem at its root but dig uneven road for the hole.

Summary of the invention

The purpose of this utility model provides a kind of simple in structure, easy to use, significant shock-absorbing rear seat of bicycle of damping effect.

For achieving the above object, the utility model is taked following design plan: a kind of shock-absorbing rear seat of bicycle, it is by bumper, back mounting, back mounting fixer, back seat cushion, handrail constitutes, it is characterized in that: described bumper is provided with a vibration damping tubes, this vibration damping tubes outside is with the outer spring of shock-absorbing, spring lower bracket pipe outside the spring lower end is provided with outside shock-absorbing, the spring upper end is provided with outer spring upper bracket pipe outside, placed a shock-absorbing pole outside in the spring upper bracket pipe, the bottom of this shock-absorbing pole puts in the vibration damping tubes, captive joint with vehicle frame in the lower end of this vibration damping tubes, the upper end of this shock-absorbing pole is connected with mounting lower end, back.

Outside shock-absorbing, be provided with concave station rank and fixing threaded hole on the tube wall of spring lower bracket pipe, on the outer wall of vibration damping tubes, be screwed the safety-key that protrusion is installed, the concave station rank of being somebody's turn to do on the outer spring lower bracket tube wall cooperate fixing with the safety-key of protrusion, the sidewall of spring upper bracket pipe is provided with fixing threaded hole outside, be provided with jackscrew in it, be provided with the collar that can be screwed into jackscrew in the spring upper bracket pipe outside.

Be socketed with interior spring in the bottom of shock-absorbing pole, be socketed with upper and lower back-up ring, on the lower end shock-absorbing pole of back-up ring down, a locknut is housed at the upper and lower end of interior spring.

In order to take advantage of a safety, handrail is installed on the top of back mounting.

In order to improve the damping, buffering effect, on the mounting of back, seat cushion is installed.

The utility model has the advantages that: simple in structure, esy to use, safe and reliable, damping effect is remarkable

Description of drawings

Fig. 1 is installed in example structure scheme drawing on the 26 type bicycles for the utility model

Fig. 2 is a bumper structural representation of the present utility model

Fig. 3 is installed in example structure scheme drawing on the 24 type bicycles for the utility model

Fig. 4 is for being equipped with the scheme drawing of seat cushion on the mounting of back of the present utility model

Fig. 5 is outer spring lower bracket tubular construction scheme drawing

Fig. 6 is Fig. 5 elevational schematic view

The specific embodiment

Referring to Fig. 1, Fig. 2, shown in Figure 3, a kind of shock-absorbing rear seat of bicycle, it is by bumper 1, back mounting 2, back mounting fixer 22, back seat cushion 20, handrail 3 constitutes, its described bumper 1 is provided with a vibration damping tubes 9, these vibration damping tubes 9 outsides are with the outer spring 10 of shock-absorbing, spring lower bracket pipe 11 outside spring 10 lower ends are provided with outside shock-absorbing, spring 10 upper ends are provided with outer spring upper bracket pipe 6 outside, placed a shock-absorbing pole 8 outside in the spring upper bracket pipe 6, the bottom of this shock-absorbing pole 8 puts in the vibration damping tubes 9, captive joint with vehicle frame 4 in the lower end of this vibration damping tubes 9, the upper end of this shock-absorbing pole 8 is connected with mounting 2 lower ends, back.

Outside shock-absorbing, be provided with concave station rank 13 and fixing threaded hole 21 (seeing Fig. 5, Fig. 6) on the tube wall of spring lower bracket pipe 11, on the outer wall of vibration damping tubes 9, be screwed safety-key 15 (see figure 2)s that protrusion is installed, the concave station rank 13 of being somebody's turn to do on outer spring lower bracket pipe 11 walls cooperate fixing with the safety-key of protruding 15, the sidewall of spring upper bracket pipe 6 is provided with fixing threaded hole 23 outside, be provided with jackscrew 5 in it, be provided with the collar 18 in the spring upper bracket pipe 6 outside.

Spring 17 in the bottom of shock-absorbing pole 8 is socketed with, and are socketed with upper and lower back-up ring 19,16 at the upper and lower end of interior spring 17, on the lower end shock-absorbing pole of back-up ring 16 down a locknut 24 are housed.

In order to take advantage of a safety, handrail 3 is installed on the top of back mounting 2.

In order to improve the damping, buffering effect, on the mounting 2 of back, seat cushion 20 is installed.

Vibration damping tubes 9 usefulness seamless tubes are made, and upper end open, lower end are flattened and sealed, and are with jackscrew 14 that outer spring lower bracket pipe 11 is fixing with vibration damping tubes 9, vertically make a call to three screw holes 25 on vibration damping tubes 11 walls, are used to install safety-key 15 usefulness.Full peace key is fixed on (see figure 3) in two holes on top when bicycle is 24 vehicles; When bicycle was 26 types, safety-key was fixed on (see figure 1) in two holes of bottom, installed with the bicycle that adapts to different size.

Outer spring upper bracket pipe 6 can play and support outer spring 10, backs out fixedly jackscrew 5, upwards takes down this support tube 6, can change the outer spring 10 of shock-absorbing of different size easily, takes advantage of seat more comfortable with the people who is suitable for different weight;

Interior spring about in the of 17 ring washer can play stablize shock-absorbing pole and accept in the effect of spring, on the interior spring ring washer 19 and shock-absorbing pole with jackscrew 26 fixing after, can prevent the effect that back-up ring downslide and shock-absorbing pole are deviate from from the shock-absorbing pipe.

At mounting both sides bottom, back mounting shock absorber, at the anterior handrail of installing of back mounting, add seat cushion, be more suitable for child seats, not only safety but also can eliminate the pain of buttock of jolting and causing.Use on the road surface that is fit to very much the road injustice.

Claims (5)

1, a kind of shock-absorbing rear seat of bicycle, it is made of bumper, back mounting, back mounting fixer, back seat cushion, handrail, it is characterized in that: described bumper is provided with a vibration damping tubes, this vibration damping tubes outside is with the outer spring of shock-absorbing, spring lower bracket pipe outside the spring lower end is provided with outside shock-absorbing, the spring upper end is provided with outer spring upper bracket pipe outside, placed a shock-absorbing pole outside in the spring upper bracket pipe, the bottom of this shock-absorbing pole puts in the vibration damping tubes, captive joint with vehicle frame in the lower end of this vibration damping tubes, the upper end of this shock-absorbing pole is connected with mounting lower end, back.

2, shock-absorbing rear seat of bicycle according to claim 1, it is characterized in that: outside shock-absorbing, be provided with concave station rank and fixing threaded hole on the tube wall of spring lower bracket pipe, on the outer wall of vibration damping tubes, be screwed the safety-key that protrusion is installed, the concave station rank of being somebody's turn to do on the outer spring lower bracket tube wall cooperate fixing with the safety-key of protrusion, the sidewall of spring upper bracket pipe is provided with fixing threaded hole outside, be provided with jackscrew in it, be provided with the collar in the spring upper bracket pipe outside.

3, shock-absorbing rear seat of bicycle according to claim 1 is characterized in that: be socketed with interior spring in the bottom of shock-absorbing pole, be socketed with upper and lower back-up ring at the upper and lower end of interior spring, on the lower end shock-absorbing pole of back-up ring down a locknut is housed.

4, shock-absorbing rear seat of bicycle according to claim 1 is characterized in that: the top at the back mounting is equipped with handrail.

5, shock-absorbing rear seat of bicycle according to claim 1 is characterized in that: on the mounting of back seat cushion is installed.

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