CN2625643Y - Shock damper - Google Patents

Abstract

The utility model discloses a shock absorber used on a bike. The surface of a cylinder body of the shock absorber is provided with a thread, a lantern ring is connected with the thread in a bolting way, an upper ring of the lantern ring is provided with a supporting part, while a shaft rod is arranged in the cylinder body, the top end of the shaft rod is provided with a spring seat, an outer ring of the spring seat is provided with a supporting part, a spring is sleeved and arranged at the outside of the cylinder body; an upper sleeve cover and a lower sleeve cover are sleeved and arranged at the outside of the spring, a sleeve hole is respectively arranged on the upper and lower sleeve covers. With the protection of the upper sleeve cover and the lower sleeve cover, the manufacturing cost can be reduced and the entrance of a foreign body can be prevented, fingers can not be clamped to injure and the purpose of elegant appearance can be realized.

Description

Shock absorber

Technical field

The utility model relates to a kind of shock absorber, refers to a kind of shock absorber structure that is used on the bicycle especially.

Background technique

At present, the employed anti-vibration structure of Regular Bicycle, mainly be on vehicle frame, to be equipped with one can slow down the spring shock absorber of vibrations, the structure of this spring shock absorber as shown in Figure 4, between cylinder body A1 and axostylus axostyle A2, be respectively equipped with collar A3 and spring seat A4, fixing has a spring A5 between collar A3 and the spring seat A4, by the flexible shock-absorbing characteristic of spring A5, reach the effect of shock-absorbing.Because these shock absorber low prices, moulding is easy, so the most normal shock absorber as bicycle.Yet, though detailed such shock absorber of sight can reach the effect of shock-absorbing, but because outside spring A5 is exposed to, not only influence attractive in appearance, and add for a long time and expose to the sun and rain, become easily infected by foreign matters such as dust, earth, and moisture is infiltrated in a large number, and the situation that makes spring A5 often have getting rusty produces, and through bearing the vehicle frame vibrations for a long time and compressing, makes spring A5 produce elastic fatigue again, so that significantly reduce the shock-absorbing effect, and it is when cleaning or maintenance, also jammed a finger by spring A5 easily, so desirable not to the utmost in the use.

In addition, other has a kind of pneumatic-typed shock absorber as shown in Figure 5, and it is to utilize the pressure rod structure to reach the shock absorber of shock-proof effect, and mainly in outer casing seat B1 and the mutual suit place of inner casing base B2, noose one ring set B5 is so that it is fixed each other; The end of outer casing seat B1 is provided with a suction port B6, but supplied gas pours into; Be installed with a piston B3 at inner casing base B2 inner end, and peripheral envelope has some choke element B4 outside.When implementing, inner casing base B2 is reached shock-proof effect with the slippage of the relative outer casing seat B1 of piston B3 straight line.And this structure mostly with the direct filling of general high voltage gas in body, yet the kind of general gas is many and molecule is big, the holding air pressure element of this structure easily causes gas-pressure component to damage because of gas is not consummate, so the anxiety of gas leakage was easily arranged after use a period of time, whether the pressure that must often detect in the body satisfies the criteria.Because this kind structure is very complicated accurate, technological layer requires higher relatively, so price is also comparatively expensive, can't be accepted by ordinary consumer, is difficult to reach universalness.

The model utility content

It is simple that the purpose of this utility model is to provide a kind of member to form, low cost of manufacture, and can prevent that foreign matter from entering, and the shock absorber that can not jam a finger.

For achieving the above object, the utility model provides a kind of shock absorber, cylinder surface at shock absorber is provided with screw thread, be bolted with the collar on the screw thread, be equipped with carrier on the collar, cylinder interior is provided with axostylus axostyle, and the axostylus axostyle top is arranged with spring seat, the outer rim of spring seat is equipped with carrier, and the cylinder body outside also is arranged with spring; Wherein: the spring outside at cylinder body is arranged with upper and lower upper shield respectively, and this upper and lower cover covers and is respectively equipped with trepanning.

The trepanning periphery of the upper and lower upper shield of described shock absorber is equipped with stacker respectively.

The upper and lower cover of described shock absorber covers and is respectively equipped with air hole.

The internal diameter of the upper sleeve cover of described shock absorber is greater than the internal diameter of lower sleeve cover, and lower sleeve cover is recessed among the upper sleeve cover.

After adopting such scheme,, make to the utlity model has following advantage because the utility model is provided with upper shield up and down in the outside of spring:

Therefore 1, spring of the present utility model is subjected to the protection of upper and lower upper shield, can not be subjected to foreign matters such as moisture, dust and earth and invade, and gets rusty or is damaged and cause, thereby can increase the service life.

2, since spring no longer expose, so can be because of in cleaning or when keeping in repair, and jam a finger, and can increase the aesthetic property of shock absorber.

3,,, therefore can be subjected to Consumer's welcome, and can reach universalness so cost is quite cheap because the utility model only increases members such as upper and lower upper shield.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is an assembled sectional view of the present utility model;

Fig. 3 is an action schematic representation of the present utility model;

Fig. 4 is the structural representation of known spring shock absorber;

Fig. 5 is the structural representation of known pneumatic-typed shock absorber.

1 cylinder body, 11 screw threads, 12 collars

13 carriers, 14 axostylus axostyles, 15 spring seats

16 carriers, 17 springs, 2 upper sleeve covers

21 trepannings, 22 stackers, 23 air holes

3 lower sleeve covers, 31 trepannings, 32 stackers

33 air hole A1 cylinder body A2 axostylus axostyles

A3 collar A4 spring seat A5 spring

B1 outer casing seat B2 inner casing base B3 piston

B4 choke element B5 ring set B6 suction port

Embodiment

At first, see also shown in Figure 1ly, the utility model mainly comprises cylinder body 1 and upper and lower upper shield 2,3, wherein:

The surface of cylinder body 1 is provided with screw thread 11, is bolted with the collar 12 on the screw thread 11, is equipped with a carrier 13 on the collar 12; The inside of cylinder body 1 is provided with an axostylus axostyle 14, and the top of axostylus axostyle 14 is arranged with spring seat 15, and the outer rim of spring seat 15 is equipped with carrier 16; The outside of cylinder body 1 also is arranged with a spring 17.

Upper and lower upper shield 2,3 is sheathed on spring 17 outsides of cylinder body 1 respectively, is respectively equipped with trepanning 21,31 on it, and this trepanning 21,31 has been peripherally installed with stacker 22,32, also is provided with air hole 23,33 on the upper and lower upper shield 2,3; In addition, the internal diameter of upper sleeve cover 2 can be recessed in the upper sleeve cover 2 for lower sleeve cover 3 just, and the material of upper sleeve cover 2 is harder greater than the external diameter of lower sleeve cover 3, and the material of lower sleeve cover 3 is softer; In addition, can be provided with exquisite pattern on the surface of upper and lower upper shield 2,3, to increase visual aesthetic property.

During combination, as shown in Figure 2, earlier spring seat 15 is located at the top of axostylus axostyle 14, then upper sleeve cover 2 is placed on the axostylus axostyle 14, the stacker 22 of upper sleeve cover 2 is resisted against in the carrier 16 of spring seat 15 outer rims, again spring 17 is placed in outside the cylinder body 1, make the top of spring 17 be subjected to upper sleeve cover 2 and spring seat 15 against, again lower sleeve cover 3 is placed on the cylinder body 1 afterwards, and the opening end that makes lower sleeve cover 3 is located at the inside of upper sleeve cover 2, at last with the collar 12 spiral shells on the screw thread 11 of cylinder body 1, and make the stacker 32 of lower sleeve cover 3 can be subjected to the collar 12 carriers 13 against; Can adjust suitable elastic compression power by screwing the collar 12, so, then combination is finished.

During use, as shown in Figure 3, when being compressed the generation shock-absorbing, spring 17 does the time spent, then lower sleeve cover 3 is also thereupon moving and retraction upper sleeve cover 2 inside, air in the simultaneously upper and lower upper shield 2,3 can be discharged by air hole 23,33, this structure can prevent foreign matters intrusions such as dust, earth and moisture, can guarantee that again the effect of shock absorber is normal, can increase the service life.

Claims (4)

1, a kind of shock absorber is provided with screw thread in the cylinder surface of shock absorber, is bolted with the collar on the screw thread, be equipped with carrier on the collar, cylinder interior is provided with axostylus axostyle, and the axostylus axostyle top is arranged with spring seat, the outer rim of spring seat is equipped with carrier, and the cylinder body outside also is arranged with spring;

It is characterized in that: the spring outside at cylinder body is arranged with upper and lower upper shield respectively, and this upper and lower cover covers and is respectively equipped with trepanning.

2, shock absorber as claimed in claim 1 is characterized in that: the trepanning periphery of this upper and lower upper shield is equipped with stacker respectively.

3, shock absorber as claimed in claim 1 is characterized in that: this upper and lower cover covers and is respectively equipped with air hole.

4, shock absorber as claimed in claim 1 is characterized in that: the internal diameter of this upper sleeve cover is greater than the external diameter of lower sleeve cover, and lower sleeve cover is recessed among the upper sleeve cover.

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