CN201626523U

CN201626523U - Shock absorber

Info

Publication number: CN201626523U
Application number: CN2010201444295U
Authority: CN
Inventors: 郑志
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-26
Filing date: 2010-03-26
Publication date: 2010-11-10
Anticipated expiration: 2020-03-26

Abstract

The utility model belongs to the technical field of shock absorbers, in particular to a shock absorber, which comprises an outer drum and an inner drum sliding inside the outer drum. Mounting portions are respectively arranged at the outer ends of the outer drum and the inner drum, first guide sliding sleeves are respectively sleeved at the inner bottom of the outer drum and at the outer bottom of the inner drum, and a first shock absorption spring is arranged between the first guide sliding sleeves. A spring guide rod positioned at the inner bottom of the outer drum sequentially penetrates through a central hole of the first shock absorption spring and the bottom of the inner drum and extends into a hollow portion of the inner drum. A second shock absorption spring is sleeved on the spring guide rod inside the inner drum, one end of the second shock absorption spring is abutted to the bottom of the inner drum, and the other end of the second shock absorption spring is abutted onto a second guide sliding sleeve fixed at the end of the spring guide rod. The shock absorber has the advantages of fine shock absorption effect, small friction resistance between the inner drum and the outer drum, simple structure, low manufacturing cost and suitability for being used for rickshaws, or electric vehicles, or motorcycle forks.

Description

A kind of bumper

Technical field

The utility model belongs to the bumper technical field, refers in particular to a kind of bumper that is applied on rickshaw or battery-driven car or the Motorcycle Front Fork.

Background technology

At present, the bumper that is applied on rickshaw or battery-driven car or the motor bike roughly has two kinds, a kind of is liquid damper, another kind is single spring damper, its weak point is: for liquid damper, its accuracy of manufacture height, cost height are sometimes because of sealing the bad leakage of oil that is very easy to cause, the leakage of the hydraulic oil in the liquid damper will cause damping performance sharply to descend, even lose damping performance; For single spring damper, though it is simple in structure, productive costs is low,, its damping effect is bad, in other words, be subjected to the influence of single damping spring performance curve and change in the process of damping, some process is too stiff, vibrations are big, noise is big, and human body sensory is not well, and vibrations also aggravate machine members easily and damage.

Summary of the invention

The purpose of this utility model provides a kind of effective reduction impulsive force and the good bumper of damping effect.

The purpose of this utility model is achieved in that

A kind of bumper, the inner core that includes urceolus and in urceolus, slide, outer end at urceolus and inner core is provided with installation portion respectively, between first guide sleeve of the outer bottom suit of the inner bottom part of urceolus and inner core, be provided with first damping spring, the inner bottom part of urceolus is positioned with mesopore and interior tube bottom that passes first damping spring successively and the spring conductor rod that stretches into the hollow bulb of inner core, be set with second damping spring on the spring conductor rod in inner core, an end roof pressure of second damping spring is in the bottom of inner core, other end roof pressure is on fixing second guide sleeve in spring conductor rod end.

The lower end of the first above-mentioned damping spring is provided with spring chair.

The above-mentioned urceolus with the inner core place of being slidingly connected is provided with lining, and the two ends of lining inwall are respectively arranged with oil seal ring, and the lining inwall between two oil seal rings is provided with the above oil sealing groove of a circle.

The top of above-mentioned lining is provided with the location jump ring, and the upper end of urceolus is connected with cover of dust.

The above-mentioned installation portion that is arranged on the urceolus outer end is one to have the lug of connecting bore.

The above-mentioned installation portion that is arranged on the inner core outer end is the cylindrical step of necking down.

The outstanding compared to existing technology advantage of the utility model is:

1, the utility model adopts the double damping spring, when the damping spring of winning is compressed, second damping spring discharges compressed energy and extends, make the damping performance curve of two damping springs complementary in the process of damping, efficiently solve and too stiffly sometimes in the process of damping cause adverse effects such as vibrations are big;

2, the utility model is provided with lining with the urceolus at the inner core place of being slidingly connected, and oil seal ring and oil sealing groove are set on the lining inwall, makes that the lubricating oil in the urceolus is difficult for running off, and the friction drag of inner/outer tube is little;

3, the utility model is applicable to the bumper of doing on rickshaw or battery-driven car or the Motorcycle Front Fork.

Description of drawings

Fig. 1 is a schematic perspective view of the present utility model;

Fig. 2 is the cutaway view of Fig. 1;

Fig. 3 is the semi-sictional view enlarged drawing at second damping spring of the present utility model and lining place;

Fig. 4 is the schematic perspective view that the utility model is applied to the two front fork bumpers on the battery-driven car.

The specific embodiment

With specific embodiment the utility model is further described below, referring to Fig. 1-3:

A kind of bumper, the inner core 2 that includes urceolus 1 and in urceolus 1, slide, outer end at urceolus 1 and inner core 2 is provided with installation portion respectively, between first guide sleeve 9 of the outer bottom suit of the inner bottom part of urceolus 1 and inner core, be provided with first damping spring 7, the inner bottom part of urceolus 1 is positioned with mesopore and interior tube bottom that passes first damping spring 7 successively and the spring conductor rod 8 that stretches into the hollow bulb of inner core 1, be set with second damping spring 20 on the spring conductor rod 8 in inner core 2, one end roof pressure of second damping spring 20 is in the bottom of inner core 2, other end roof pressure is on fixing second guide sleeve 10 in spring conductor rod 8 ends, and the upper end of second guide sleeve 10 is provided with pad 11 and tightens fixing with nut 12.

The lower end of the first above-mentioned damping spring 7 is provided with spring chair 6.

The above-mentioned urceolus 1 with inner core 2 places of being slidingly connected is provided with lining 13, the two ends of lining 13 inwalls are respectively arranged with oil seal ring 14, lining 13 inwalls between two oil seal rings 14 are provided with the above oil sealing groove 15 of a circle, so that when making inner/outer tube do relative motion, lubricating oil is not outwards revealed, and guarantees that motion is normal.

The top of above-mentioned lining is provided with location jump ring 16, and the upper end of urceolus 1 is connected with cover of dust 17.

The above-mentioned installation portion that is arranged on urceolus 1 outer end is one to have the lug 3 of connecting bore 4, is convenient to be connected with parts such as axletrees.

The above-mentioned installation portion that is arranged on inner core 2 outer ends is that the cylindrical step 5 of necking down is convenient to be connected and fixed with the upper junction plate of vehicle front fork.

Application of the present utility model is referring to Fig. 4: two the utility model are installed on the installation position of the front fork of lower connecting

plate

31,32 on certain electric vehicle vertical shaft 33 bonded assembly, promptly form a kind of battery-driven car front fork 50 with double damper.

Certainly, also can be installed in and be used for damping on the vehicle with one or more bumpers of the present utility model.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit protection domain of the present utility model according to this; so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1. bumper, it is characterized in that: the inner core that includes urceolus and in urceolus, slide, outer end at urceolus and inner core is provided with installation portion respectively, between first guide sleeve of the outer bottom suit of the inner bottom part of urceolus and inner core, be provided with first damping spring, the inner bottom part of urceolus is positioned with mesopore and interior tube bottom that passes first damping spring successively and the spring conductor rod that stretches into the hollow bulb of inner core, be set with second damping spring on the spring conductor rod in inner core, an end roof pressure of second damping spring is in the bottom of inner core, other end roof pressure is on fixing second guide sleeve in spring conductor rod end.

2. a kind of bumper according to claim 1 is characterized in that: the lower end of described first damping spring is provided with spring chair.

3. a kind of bumper according to claim 1, it is characterized in that: the described and urceolus inner core place of being slidingly connected is provided with lining, the two ends of lining inwall are respectively arranged with oil seal ring, and the lining inwall between two oil seal rings is provided with the above oil sealing groove of a circle.

4. according to claim 1 or 3 described a kind of bumpers, it is characterized in that: the top of described lining is provided with the location jump ring, and the upper end of urceolus is connected with cover of dust.

5. a kind of bumper according to claim 1 is characterized in that: the described installation portion that is arranged on the urceolus outer end is one to have the lug of connecting bore.

6. a kind of bumper according to claim 1 is characterized in that: the described installation portion that is arranged on the inner core outer end is the cylindrical step of necking down.