CN2294912Y

CN2294912Y - Shock-absorber for bicycle

Info

Publication number: CN2294912Y
Application number: CN 97208752
Authority: CN
Inventors: 张权标
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-01
Filing date: 1997-03-01
Publication date: 1998-10-21
Anticipated expiration: 2007-03-01

Abstract

The utility model provides an oil pressure shock-absorber for a bicycle which can carry out the pressure stepless regulation and is only provided with a piston. The shock-absorber comprises a nut, a pressure regulating nut, a locking nut, two spring covers, a damping spring and a piston. The damping spring is sheathed out of the piston, and the two spring covers having the fixing effect are arranged at both ends of the spring. The nut is arranged at one end of the spring, and the pressure regulating nut and the locking nut are arranged at the other end of the spring. On the one hand, the elasticity of the spring can damp the shock. On the other hand, the piston can damp the shock. Simultaneously, the utility model is provided with the pressure regulating nut and the locking nut. The telescoping degree of the spring can be regulated by regulating the two nuts according to the load bearing of the bicycle and the road surface condition. Consequently, the utility model achieves the best shock absorption effect.

Description

A kind of bicycle damper

The utility model belongs to the parts of self-service transportation means, relates in particular to a kind of bicycle damper.

Since bicycle comes out, how to alleviate the vibrations of bicycle, it is the problem that people pay close attention to always, the patent No. is 89208521, name is called the patent of " bicycle shock absorption device ", and its technical scheme is: spring vibration damper that one in device is made of spring, spring perch below the saddle and the oil damp device that is made of last lower piston and cylinder sleeve.This bumper is equipped with two pistons, complex structure, and the cost height has increased the weight of vehicle body, and it is stepless adjustable to carry out pressure.

The purpose of this utility model is exactly in order to overcome the shortcoming of above-mentioned technology, to provide a kind of pressure that can carry out stepless adjustable, having only the oil pressure bicycle damper of a piston.

A kind of bicycle damper comprises nut, look nut, jam nut and two spring covers, it is characterized in that also comprising damping spring, a piston; Damping spring is enclosed within the outside of piston, and two spring covers that play fixation are installed in two of spring, and nut is installed in of spring, and look nut and jam nut are installed in the other end of spring.

Because the utility model has adopted damping spring and buffer piston damping, when running into pressure, the elastic force of spring carries out damping on the one hand, and the oil pressure of piston also carries out bumper and absorbing shock on the other hand, so the damping effect ideal.Simultaneously,,,, adjust the telescopic level of spring, thereby reach best damping effect by regulating this two nuts according to the load-bearing and the road surface situation of bicycle because the utility model has been installed look nut and jam nut.

Fig. 1 is the utility model scheme drawing;

Fig. 2 is the scheme drawing of piston rod;

Fig. 3 is the piston head schematic cross-section that has 4 apertures.

Describe in detail below in conjunction with accompanying drawing.As shown in Figure 1, the 1st, screw, the 2nd, nut, the 3rd, upper spring lid, the 4th, piston rod, the 5th, cored screw, the 6th, damping spring, the 7th, piston barrel, the 8th, lower spring lid, the 9th, look nut, the 10th, jam nut, the 11st, base; As shown in Figure 2, the 12nd, oil seal washer, the 13rd has the piston head of 4 apertures; As shown in Figure 3, the 14th, the aperture on the piston head.

In piston barrel, add an amount of oil, the more first end of the piston of piston rod is inserted piston barrel, be inserted in oil seal washer, and fix with cored screw, piston.Damping spring is inserted in piston, buckles respectively, lower spring lid, again with nut and look nut, locking nut screwing.

When running into pressure, piston rod moves downward, and the oil in the piston barrel produces the time-delay contact, has reached damping effect, because piston head is drilled with four apertures, the oil in the piston barrel is flowed flexibly, thereby reached more satisfactory damping effect.Meanwhile, when piston rod moves downward, make the damping spring pressurized and the upwards elastic force that produces, also reached damping effect.

When bicycle is loaded onto this bumper,,, can according to circumstances adjust pressure of the present utility model for reaching best damping effect along with load-bearing difference, surface evenness difference.When bicycle load-bearing increase or surface evenness variation, need to increase the pressure of bumper, at first the clickwise look nut makes its rising, and the rotational lock nut is fixed and is got final product then.Otherwise when needing to reduce the pressure of bumper, press the said procedure reverse operating and get final product.

The utility model good damping effect has certain popularization value.

Claims

1, a kind of bicycle damper comprises nut, look nut, jam nut and two spring covers, it is characterized in that also comprising damping spring, a piston; Damping spring is enclosed within the outside of piston, and two spring covers that play fixation are installed in two of spring, and nut is installed in of spring, and look nut and jam nut are installed in the other end of spring.

2, bumper as claimed in claim 1 is characterized in that being drilled with 4 apertures on the piston head of piston.