CN219366669U - Automobile shock absorber - Google Patents

Abstract

The utility model provides an automobile shock absorber, comprising: the device comprises a cylinder barrel, a piston rod, a piston, a limiting ring, a guide seat and an oil seal; the piston rod extends into the cylinder barrel, the piston is fixedly arranged at the lower end of the piston rod, and the piston rod drives the piston to move up and down in the cylinder barrel; the upper port of the cylinder barrel is provided with a guide seat for guiding the movement of the piston rod and an oil seal for preventing the hydraulic oil in the cylinder barrel from overflowing; a limiting ring is fixedly sleeved on a rod body of the piston rod extending into the cylinder barrel; the limiting ring is a nitrile rubber ring, and the height of the nitrile rubber ring is 3-5 mm. Because the limiting ring of the automobile shock absorber is a nitrile rubber ring, when the limiting ring and the guide seat collide, rubber deformation is buffered, and the collision abnormal sound is reduced or eliminated. And the height of the nitrile rubber ring is designed to be 3-5 mm, so that the effective stroke limit of the shock absorber can be realized.

Description

Automobile shock absorber

Technical Field

The utility model relates to the technical field of automobile accessories, in particular to an automobile shock absorber.

Background

In the process of driving an automobile on a road surface, the unevenness of the road surface can cause the spring to generate relative vibration between the mass and the unsprung mass, and in order to consume the relative vibration, an automobile shock absorber is usually arranged at present so as to improve the comfort of the automobile.

The conventional automobile shock absorber consists of a cylinder barrel, a piston rod, a piston, a limiting ring, a guide seat and an oil seal. The piston rod stretches into the cylinder barrel, the piston is fixedly arranged at the lower end of the piston rod, and the piston rod drives the piston to move up and down in the cylinder barrel. The upper port of the cylinder barrel is provided with a guide seat for guiding the movement of the piston rod and an oil seal for preventing the hydraulic oil in the cylinder barrel from overflowing. The rod body of the piston rod extending into the cylinder barrel is fixedly sleeved with a limiting ring.

When the automobile runs on a bumpy road surface, when the piston rod pulls the piston to move upwards to a set highest position (namely, when the automobile shock absorber is stretched to the maximum), the limiting ring of the piston rod collides with the guide seat, and the existing limiting ring and the guide seat are products with larger hardness, so that the limiting ring and the guide seat can make larger sound when in collision, and visual feeling is that the back of the shock absorber is slamming and slamming abnormal sound, so that bad driving feeling is brought to a driver.

Therefore, how to provide an automobile shock absorber to solve the problem that the limit ring and the guide seat of the piston rod generate larger sound when the piston rod and the guide seat are impacted due to larger hardness is a technical problem to be solved by the person skilled in the art.

Disclosure of Invention

Therefore, the utility model aims to provide an automobile shock absorber, which solves the problem that the limiting ring and the guide seat of the piston rod generate larger sound when the piston rod and the guide seat are impacted due to larger hardness.

In order to achieve the above object, the present utility model provides an automobile shock absorber comprising:

the device comprises a cylinder barrel, a piston rod, a piston, a limiting ring, a guide seat and an oil seal;

the piston rod extends into the cylinder barrel, the piston is fixedly arranged at the lower end of the piston rod, and the piston rod drives the piston to move up and down in the cylinder barrel;

the upper port of the cylinder barrel is provided with a guide seat for guiding the movement of the piston rod and an oil seal for preventing the hydraulic oil in the cylinder barrel from overflowing;

a limiting ring is fixedly sleeved on a rod body of the piston rod extending into the cylinder barrel;

it is characterized in that the method comprises the steps of,

the limiting ring is a nitrile rubber ring, and the height of the nitrile rubber ring is 3-5 mm.

Preferably, the hardness of the nitrile rubber ring is defined as 60-70 HA.

The utility model has the following beneficial effects:

in practical application, when a vehicle passes through a big pit or passes through a convex hull tire to drop down, the piston rod pulls the piston to move upwards to a set highest position (namely, when the automobile shock absorber is stretched to the maximum), and the limiting ring can collide with the guide seat. Because the limiting ring of the automobile shock absorber is a nitrile rubber ring, when the limiting ring and the guide seat collide, rubber deformation is buffered, and the collision abnormal sound is reduced or eliminated. And the height of the nitrile rubber ring is designed to be 3-5 mm, so that the effective stroke limit of the shock absorber can be realized.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic view of a shock absorber for an automobile according to an embodiment of the present utility model;

reference numerals and signs

1-a cylinder barrel; 2-a piston rod; 3-piston; 4-limiting rings; 5-a guide seat; 6-oil seal.

Detailed Description

The utility model aims at providing an automobile shock absorber to solve the problem that a limit ring and a guide seat of a piston rod generate larger sound when the limit ring and the guide seat are impacted due to larger hardness.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model discloses an automobile shock absorber, which is shown in FIG. 1 and comprises the following components:

the cylinder barrel 1, the piston rod 2, the piston 3, the limiting ring 4, the guide seat 5 and the oil seal 6;

the piston rod 2 extends into the cylinder barrel 1, the piston 3 is fixedly arranged at the lower end of the piston rod 2, and the piston rod 2 drives the piston 3 to move up and down in the cylinder barrel 1;

the upper port of the cylinder barrel 1 is provided with a guide seat 5 and an oil seal 6, the guide seat 5 guides the movement of the piston rod 2, and the oil seal 6 is used for preventing hydraulic oil in the cylinder barrel 1 from overflowing;

the rod body of the piston rod 2 extending into the cylinder barrel 1 is fixedly sleeved with a limiting ring 4, the limiting ring 4 is a nitrile rubber ring, and the height of the nitrile rubber ring is 3-5 mm.

In practical application, when the vehicle passes through a big pit or passes through a convex hull tire and falls down, the piston rod 2 pulls the piston 3 to move upwards to a set highest position (namely, when the automobile shock absorber is stretched to the maximum), and the limiting ring 4 can collide with the guide seat 5. Because the limiting ring 4 of the automobile shock absorber is a nitrile rubber ring, when the limiting ring 4 and the guide seat 5 collide, rubber deformation is buffered, and the collision abnormal sound is reduced or eliminated. And the height of the nitrile rubber ring is designed to be 3-5 mm, so that the effective stroke limit of the shock absorber can be realized.

In some specific embodiments, in order to ensure durability and functionality of the nitrile rubber ring, the hardness of the nitrile rubber ring is defined as 60 to 70HA.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

It should be appreciated that the terms "system," "apparatus," "unit," and/or "module," if used herein, are merely one method for distinguishing between different components, elements, parts, portions, or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.

Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" means two or more than two.

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

If a flowchart is used in the present application, the flowchart is used to describe the operations performed by the system according to embodiments of the present application. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (2)

1. An automotive shock absorber comprising:

the device comprises a cylinder barrel, a piston rod, a piston, a limiting ring, a guide seat and an oil seal;

the piston rod extends into the cylinder barrel, the piston is fixedly arranged at the lower end of the piston rod, and the piston rod drives the piston to move up and down in the cylinder barrel;

the upper port of the cylinder barrel is provided with a guide seat for guiding the movement of the piston rod and an oil seal for preventing the hydraulic oil in the cylinder barrel from overflowing;

a limiting ring is fixedly sleeved on a rod body of the piston rod extending into the cylinder barrel;

it is characterized in that the method comprises the steps of,

the limiting ring is a nitrile rubber ring, and the height of the nitrile rubber ring is 3-5 mm.

2. The vehicle shock absorber of claim 1, wherein the nitrile rubber ring HAs a hardness defined as 60 to 70HA.