CN212985887U - Bottom damping adjustable shock absorber - Google Patents

Abstract

The utility model discloses an adjustable shock absorber of bottom damping, including working cylinder and liquid storage cylinder, in the liquid storage cylinder was located to the working cylinder, the fixed compression valve that is equipped with in bottom of working cylinder, the compression valve was equipped with valve opening, its characterized in that: the lower end part of the liquid storage cylinder is fixedly connected with a lower end cover, the lower end cover is provided with an oil inlet channel and an oil outlet channel, an inlet of the oil inlet channel is communicated with an inner cavity of the working cylinder through a valve hole, an outlet of the oil outlet channel is communicated with the inner cavity of the liquid storage cylinder, a circulation gap with adjustable size is arranged between the outlet of the oil inlet channel and the inlet of the oil outlet channel, the size of the circulation gap is adjusted manually through a gear adjuster, and the gear adjuster is installed on the lower end cover. The utility model discloses utilize the manual regulation of gear, the circulation clearance of adjustment valve system to control shock absorber recovers again and the circulation in the compression stroke, reaches the purpose that changes damping rigidity, improves the damping effect.

Description

Bottom damping adjustable shock absorber

Technical Field

The utility model relates to a shock absorber of using in car suspension.

Background

The shock absorber is used for a suspension system of an automobile and is mainly used for inhibiting the shock when a spring rebounds after absorbing shock and the impact from a road surface. The prior art shock absorber, its damping often can not be adjusted, even have the regulation to adopt electromagnetic damping to adjust, and the structure is complicated, needs complicated control system moreover, is difficult to satisfy user's user demand.

Disclosure of Invention

In view of the not enough of prior art, the utility model provides an utilize gear manual regulation, governing valve system's circulation clearance to control flow in resumeing and the compression stroke, reach the purpose that changes damping rigidity, improve the adjustable shock absorber of bottom damping of damping effect.

The utility model adopts the following technical proposal to complete:

bottom damping adjustable shock absorber, including working cylinder and liquid storage tank, in the liquid storage tank was located to the working cylinder, the fixed compression valve that is equipped with in bottom of working cylinder, the compression valve is equipped with valve opening, its characterized in that: the lower end part of the liquid storage cylinder is fixedly connected with a lower end cover, the lower end cover is provided with an oil inlet channel and an oil outlet channel, an inlet of the oil inlet channel is communicated with an inner cavity of the working cylinder through a valve hole, an outlet of the oil outlet channel is communicated with the inner cavity of the liquid storage cylinder, a circulation gap with adjustable size is arranged between the outlet of the oil inlet channel and the inlet of the oil outlet channel, the size of the circulation gap is adjusted manually through a gear adjuster, and the gear adjuster is installed on the lower end cover.

According to the technical scheme, the size of the circulation gap can be changed through manual adjustment of the gear adjuster, which is equivalent to the size of a compression valve hole communicated with the working cylinder and the liquid storage cylinder is changed when the shock absorber works, so that the circulation of the shock absorber in the rebound and compression strokes is controlled, the purpose of changing the damping rigidity is achieved, and the damping effect of the shock absorber is improved.

Preferably, one side of lower end cover is equipped with the side direction hole, the gear regulator includes thimble, pivot, nut and gear adjusting hand wheel, and the thimble is located in the side direction hole, leaves annular space between the excircle of thimble and the hole in side direction hole, and annular space switches on the export of oil feed passageway and the import of oil outlet channel, and the thimble has the tip of the cone to face the export of oil feed passageway, and the trailing end connection pivot of thimble, pivot normal running fit locate in the side direction hole, and the tail-end connection screw rod of pivot connects gear adjusting hand wheel through the screw rod, the nut connects with the screw rod screw thread soon, and the nut is fixed on the lower end cover of side direction hole port outside position. The above design structure is simple, and the concrete working principle is as follows: when the gear adjusting hand wheel is rotated, the thimble can be axially displaced, and the distance between the conical head part of the thimble and the outlet of the oil inlet channel is changed, so that the purpose of changing the size of the circulation gap can be achieved.

Drawings

The utility model discloses there is following figure:

figure 1 is a schematic structural diagram of the present invention,

fig. 2 is a view taken along the line a of fig. 1 (with the protective cover removed).

Detailed Description

As shown in the figure, the utility model discloses an adjustable shock absorber of bottom damping, including working cylinder 1 and liquid storage cylinder 2, working cylinder 1 is located in liquid storage cylinder 2, the fixed compression valve 5 that is equipped with in bottom of working cylinder 1, compression valve 5 is equipped with valve opening 18, the lower extreme tip of liquid storage cylinder 2 is with welding mode fixed connection lower extreme cover 6, lower extreme cover 6 is equipped with oil feed passageway 7 and oil outlet channel 17, the import of oil feed passageway 7 communicates with each other through valve opening 18 and inner chamber 3 of working cylinder 1, oil outlet channel 17's export communicates with each other with inner chamber 4 of liquid storage cylinder 2, be equipped with big or small adjustable circulation clearance 8 between the export of oil feed passageway 7 and the import of oil outlet channel 17, the size regulation of circulation clearance 8 is carried out manual regulation by the gear regulator, the gear regulator install in on lower extreme cover 6.

One side of the lower end cover 6 is provided with a lateral hole, the gear adjuster comprises an ejector pin 10, a rotating shaft 16, a nut 12 and a gear adjusting hand wheel 14, the ejector pin 10 is arranged in the lateral hole, an annular space 9 is reserved between the excircle of the ejector pin 10 and the inner hole of the lateral hole, the annular space 9 conducts the outlet of the oil inlet channel 7 and the inlet of the oil outlet channel 17, the ejector pin 10 is provided with a conical head facing the outlet of the oil inlet channel 7, a circulation gap 8 is formed between the conical head of the ejector pin 10 and the outlet of the oil inlet channel 7, the tail end of the ejector pin 10 is connected with the rotating shaft 16, the rotating shaft 16 is arranged in the lateral hole in a rotating fit manner, the tail end of the rotating shaft 16 is connected with a screw rod 15 and connected with the gear adjusting hand wheel 14 through the screw rod 15, the nut 12 is screwed with the screw rod 15, the nut 12 is fixed on the lower end cover 6 at, the sealing ring 11 is pressed and fixed by the nut 12, and in order to prevent the gear adjuster from being accidentally touched and change the position of the gear adjusting hand wheel, a protective cover 13 is arranged outside the gear adjusting hand wheel 14 and the nut 12.

Claims (2)

1. Bottom damping adjustable shock absorber, including working cylinder and liquid storage tank, in the liquid storage tank was located to the working cylinder, the fixed compression valve that is equipped with in bottom of working cylinder, the compression valve is equipped with valve opening, its characterized in that: the lower end part of the liquid storage cylinder is fixedly connected with a lower end cover, the lower end cover is provided with an oil inlet channel and an oil outlet channel, an inlet of the oil inlet channel is communicated with an inner cavity of the working cylinder through a valve hole, an outlet of the oil outlet channel is communicated with the inner cavity of the liquid storage cylinder, a circulation gap with adjustable size is arranged between the outlet of the oil inlet channel and the inlet of the oil outlet channel, the size of the circulation gap is adjusted manually through a gear adjuster, and the gear adjuster is installed on the lower end cover.

2. The bottom damping adjustable shock absorber as set forth in claim 1 wherein: one side of lower extreme cover is equipped with the side direction hole, gear regulator includes thimble, pivot, nut and gear adjusting hand wheel, and it is downthehole that the side direction is located to the thimble, leaves the annular space between the excircle of thimble and the hole in side direction hole, and the annular space switches on the export of oil feed passageway and the import of the passageway that produces oil, and the thimble has the frustum to face the export of oil feed passageway, and the trailing end connection pivot of thimble, pivot normal running fit locate in the side direction hole, and the trailing end connection screw rod of pivot passes through screw rod connection gear adjusting hand wheel, the nut connects with the screw rod screw thread soon, and the nut is fixed on the lower extreme cover of side direction hole port outside position.

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