CN202560913U

CN202560913U - One-way valve plate of shock absorber

Info

Publication number: CN202560913U
Application number: CN2012202462073U
Authority: CN
Inventors: 潘成群
Original assignee: Ningbo Qunxing Powder Metallurgy Co Ltd
Current assignee: Ningbo Qunxing Powder Metallurgy Co Ltd
Priority date: 2012-05-29
Filing date: 2012-05-29
Publication date: 2012-11-28
Anticipated expiration: 2022-05-29

Abstract

The utility model discloses a one-way valve plate of a shock absorber. The one-way valve plate of the shock absorber comprises an annular valve plate body (1) which is provided with a through hole (2), wherein the lower end face (3) of the valve plate body (1) is an inclined surface; the inclined surface is lowered gradually from the outer end of the valve plate body (1) to the wall of the through hole (2); and the height h of the lower inclined surface is 0.01 mm to 0.05 mm. The one-way valve plate of the shock absorber, disclosed by the utility model, has good sealing performance.

Description

The vibration damper check valve sheet

Technical field

The utility model relates to a kind of Motor Vehicle component, specifically is a kind of vibration damper check valve sheet that is used for the Motor Vehicle shockproof system.

Background technique

The main effect of vibration damper is when receiving vibrations relative movement to occur between the vehicle body of Motor Vehicle and vehicle bridge or vehicle body and the wheel; Piston in the vibration damper moves up and down; Hydraulic oil in the vibration damper is flowing in the shock absorber oil storage cylinder through different throttle orifices from the vibration damper clutch release slave cylinder repeatedly just; The intermolecular interior friction of friction between throttle orifice hole wall and the hydraulic oil and hydraulic oil at this moment forms damping force to vibrations; Make the Motor Vehicle vibration energy be converted into fluid heat energy, absorb to be dispersed in the atmosphere by vibration damper again and go.Existing motor vehicle damper comprises the vibration damper clutch release slave cylinder; Be nested with oil storage cylinder in the vibration damper clutch release slave cylinder outside; The shock absorber piston that matches with the vibration damper clutch release slave cylinder, be arranged on the vibration damper valve seat of clutch release slave cylinder bottom, piston is provided with through spring spacing in the check valve sheet at piston end surface, when the exterior edge face of check valve sheet receives the pressure of hydraulic oil; The sealing of the interior edge face of check valve sheet and piston end surface makes the throttle orifice on the piston can only one-way flow.Not enough below the vibration damper check valve sheet of existing technology exists: as because that the end face of the check valve sheet of existing technology is generally is flat, when making the applying of check valve sheet and piston end surface, to stay the slit easily, cause poor sealing, influence the proper functioning of vibration damper.

The model utility content

The utility model technical problem to be solved is that the vibration damper check valve sheet of good airproof performance is provided.

For solving the problems of the technologies described above; The vibration damper check valve sheet that the utility model provides; Comprise circular valve block body, the valve block body is provided with through hole, and the lower end surface of described valve block body is the inclined-plane; This inclined-plane is reduced to the hole wall of through hole by the outer end of valve block body gradually, and the high h of lower inclined plane is 0.01 millimeter to 0.05 millimeter.

After adopting above structure, the utility model compared with prior art has following advantage:

Because the lower end surface of valve block body is the inclined-plane, the lower end surface that makes the valve block body can not stay the slit between the lower end surface of valve block body and the piston end surface during with the piston end surface applying, seals tightlyer, and good airproof performance can not influence the proper functioning of vibration damper.

As improvement, described lower inclined plane height is 0.02 millimeter, this moment vibration damper check valve sheet good airproof performance and manufacturing easily.

As further improvement; The upper-end surface of described valve block body is the inclined-plane; The high h ' of ramp is 0.02 millimeter, makes two end faces up and down of vibration damper check valve sheet can be used for sealing, and can not influence sealing owing to the upper-end surface of having misused the valve block body seals.

Description of drawings

Fig. 1 is the sectional structure schematic representation of the utility model vibration damper check valve sheet;

Fig. 2 is the structure for amplifying schematic representation of A among Fig. 1.

Wherein, 1, valve block body; 2, through hole; 3, lower end surface; 4, upper-end surface; H, lower inclined plane height; H ', ramp height.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done explanation in further detail.

Structural representation by Fig. 1, Fig. 2, the utility model vibration damper check valve sheet shown in Figure 3 can be known; It comprises circular valve block body 1; The center of valve block body 1 is provided with through hole 2, and the lower end surface 3 of described valve block body 1 is the inclined-plane, and this inclined-plane is reduced to the hole wall of through hole 2 by the outer end of valve block body 1 gradually; The high h of lower inclined plane is 0.01 millimeter to 0.05 millimeter, and the annulus width of valve block body 1 is 1.5 centimetres.

The high h of described lower inclined plane is 0.02 millimeter.

The upper-end surface 4 of described valve block body 1 is the inclined-plane, and the high h ' of ramp is 0.02 millimeter, makes the upper-end surface 2 of valve block body 1 also can be used for sealing.

Below only use preferable instance with regard to the utility model and made explanation, but can not be interpreted as it is the restriction to claim, the structure of the utility model can have other variations, is not limited to said structure.In a word, the various variations of being done in the protection domain of all independent claims at the utility model are all in the protection domain at the utility model.

Claims

1. vibration damper check valve sheet; Comprise circular valve block body (1); Valve block body (1) is provided with through hole (2); It is characterized in that: the lower end surface (3) of described valve block body (1) is the inclined-plane, and this inclined-plane is reduced to the hole wall of through hole (2) by the outer end of valve block body (1) gradually, and the high h of lower inclined plane is 0.01 millimeter to 0.05 millimeter.

2. vibration damper check valve sheet according to claim 1 is characterized in that: the high h of described lower inclined plane is 0.02 millimeter.

3. vibration damper check valve sheet according to claim 1 and 2 is characterized in that: the upper-end surface (4) of described valve block body (1) is the inclined-plane, and the high h ' of ramp is 0.02 millimeter.