CN2281439Y

CN2281439Y - Vibration absorber

Info

Publication number: CN2281439Y
Application number: CN 96243351
Authority: CN
Inventors: 周仕庆
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-10
Filing date: 1996-12-10
Publication date: 1998-05-13
Anticipated expiration: 2006-12-10

Abstract

The utility model discloses a vibration absorber suitable for a vehicle. The utility model moderately accelerates the oil return velocity and moderately decreases the oil return pressure by moderately increasing the number and the section area of the oil through holes (10) arranged on a guide assembly (6), in order to achieve the purpose that an oil seal (7) is not easy to leak oil. The utility model is not easy to leak oil, has long service life, can effectively reduce the maintenance cost, etc.

Description

Vibration damper

This practical vibration damper technology that belongs to particularly adopts oil cylinder to reach the vibration damper technology of damping purpose as damping, is specifically related to a kind of cylinder type vibration damper that is applicable to car, minibus.

At present, such as sedan cars such as Santana, Citroen zx, Jetta, rubber oil sea often takes place and lost efficacy and form serious oil leakage phenomenon in the cylinder type vibration damper that minicar such as Chang'an, Otto and Light-duty Vehicle mini-bus etc. are adopted, and a leakage of oil just is difficult to repair, and whole often vibration damper renews use.Certainly will increase the maintaining cost of this class automobile like this.

The present utility model people is through concentrating on studies, thus he notices that oil sealing can leakage of oil, its reason sheerly be located on the guiding assemblage oil through not only less and aperture but also little (oil through of above-mentioned automobile all is 2 to 3, and its aperture is at Φ 3mm with below the Φ 3mm).It is uncomfortable to cause fluid to reflux, and causes oil pressure to continue to increase, and fluid is is outwards sprayed and spoiled in the crack between the two by oil sealing and piston rod.

The purpose of this utility model makes improvements at the deficiency of the vibration damper leakage of oil of existing this class automobile, and a kind of vibration damper of not easy oil leakage is provided, and in the hope of improving the working life of vibration damper, significantly reduces the funds spending of this class vehicle maintenance protection.

Realize that the technological scheme that the utility model purpose is taked is to increase the number that is located at the oil through on the guiding assemblage, increase the sectional area of oil through, the oil return appropriateness is accelerated, be in the pressure in the oil pocket between guiding assemblage and the rubber oil sea with reduction, thereby reach the purpose of not easy oil leakage.Improvement of the present utility model is that the said oil through that is located on the guiding assemblage has 4 at least.

Improvement of the present utility model is that also said oil through is a circular hole, or square hole, or irregularly-shaped hole.

Further improvement of the utility model point is that also the sectional area of said oil through is greater than 7 square millimeters.

The utility model is owing to the oil return appropriateness is accelerated, and cylinder damping does not have obvious reduction, thereby can neither reduce its cushioning effect.Can obviously reduce its oil leakage phenomenon again, significantly improve working life, reduce the maintaining cost effectively.

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Fig. 1 is a structure sectional view of the present utility model.

See also accompanying drawing 1, the utility model comprises housing (1), cylinder (2), bottom valve assembly (3), piston assembly (4), piston rod (5), guiding assemblage (6), rubber oil sea (7), between housing (1) and cylinder (2), be shoe cream room (8), on bottom valve assembly (3), be provided with the oil through (9) that connects cylinder (2) and shoe cream room (8), on guiding assemblage (6), be provided with the oil through (10) that connects cylinder (2) and shoe cream room (8), and oil through (10) has 4 at least, for circular square or special-shaped, its sectional area is greater than 7 square millimeters.

Embodiment, except that oil sealing (7) is that other is Steel Work the rubber parts, its material, thickness, length, diameter etc. are all with existing vibration damper.And said oil through (10) has 5, and it is shaped as circular hole, and diameter is Φ 3.2mm.

Claims

1, a kind of vibration damper that is applicable to automobile, it comprises housing (1), cylinder (2), bottom valve assembly (3), piston assembly (4), piston rod (5), guiding assemblage (6), rubber oil sea (7), between housing (1) and cylinder (2), form shoe cream room (8), by being located at the oil through (9) on the bottom valve assembly (3), the bottom and the shoe cream room (8) of cylinder (2) are connected, and by being located at the oil through (10) on the guiding assemblage (6), the top and the shoe cream room (8) of cylinder (2) are connected, it is characterized in that the said oil through (10) that is located on the guiding assemblage (6), have 4 at least.

2, vibration damper according to claim 1 is characterized in that the circular hole that is shaped as of oil through (10), or square hole, or irregularly-shaped hole.

3, according to claim 1 and 2 described vibration dampers, the sectional area that it is characterized in that oil through (10) is greater than 7 square millimeters.