CN215444593U

CN215444593U - Riveting type primary piston assembly

Info

Publication number: CN215444593U
Application number: CN202121773082.5U
Authority: CN
Inventors: 陈章明; 彭宏丛; 张朋岭; 李洪
Original assignee: Jiangxi Jiangling Group Shenling Auto Parts Co ltd
Current assignee: Jiangxi Jiangling Group Shenling Auto Parts Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-07
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to the technical field of automobile design and manufacture, in particular to a riveting type primary piston assembly, which comprises a first primary piston, a guide rod, a first spring, a second primary piston, a spring base and a second spring, wherein the first primary piston is connected with the guide rod through the first spring; the guide rod is horizontally arranged at the end part of the first primary piston facing the second primary piston, and the guide rod and the first primary piston are coaxially arranged; the first spring is sleeved on the guide rod and is connected with the first primary piston; the spring base is arranged at the end of the second primary piston facing the first primary piston; the second spring is arranged on the periphery of the spring base; the guide rod is inserted into the spring base in a matching way, and a gasket is arranged between the guide rod and the spring base; the first primary piston and the second primary piston are riveted with each other. According to the utility model, the connection between the primary pistons is guided, and the external force friction in the working process of the piston assembly is avoided, so that the generation of abnormal sound is reduced, and the problem of abnormal sound in automobile braking can be better solved.

Description

Riveting type primary piston assembly

Technical Field

The utility model relates to the technical field of automobile design and manufacture, in particular to a riveting type primary piston assembly.

Background

The primary piston assembly is mainly used in a brake master cylinder of an automobile, the existing piston assemblies are connected in series through connecting screws, the perpendicularity and concentricity of the assemblies are difficult to guarantee, and abnormal braking sound is easy to generate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a riveting type primary piston assembly aiming at the problem that perpendicularity and concentricity are difficult to guarantee due to the fact that piston assemblies are connected in series through connecting screws in the background technology.

The technical scheme of the utility model is as follows: a riveted primary piston assembly comprises a first primary piston, a guide rod, a first spring, a second primary piston, a spring base and a second spring;

the guide rod is horizontally arranged at the end part of the first primary piston facing the second primary piston, and the guide rod and the first primary piston are coaxially arranged; the first spring is sleeved on the guide rod and is connected with the first primary piston; the spring base is arranged at the end of the second primary piston facing the first primary piston; the second spring is arranged on the periphery of the spring base; the guide rod is inserted into the spring base in a matching way, and a gasket is arranged between the guide rod and the spring base; the first primary piston and the second primary piston are riveted with each other.

Preferably, the guide rod and the first primary piston are integrally formed by machining.

Compared with the prior art, the utility model has the following beneficial technical effects: the connecting device has the advantages that the guiding effect is achieved on the connection between the primary pistons, the freedom, flexibility and reliability are achieved, the external force friction in the working process of the piston assembly is avoided, the abnormal sound is reduced, the problem of the abnormal sound of the automobile brake can be better solved, and the damage to parts caused by the mutual friction of the assemblies is reduced.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

reference numerals: 1. a first primary piston; 2. a guide bar; 3. a first spring; 4. a second primary piston; 5. a spring mount; 6. a second spring; 7. a gasket.

Detailed Description

Example one

As shown in fig. 1, the present invention provides a riveted primary piston assembly, which comprises a first primary piston 1, a guide rod 2, a first spring 3, a second primary piston 4, a spring seat 5 and a second spring 6;

the guide rod 2 is horizontally arranged at the end part of the first primary piston 1 facing the second primary piston 4, and the guide rod 2 is coaxially arranged with the first primary piston 1; the first spring 3 is sleeved on the guide rod 2, and the first spring 3 is connected with the first primary piston 1; the spring seat 5 is arranged at the end of the second primary piston 4 facing the first primary piston 1; the second spring 6 is arranged on the periphery of the spring base 5; the guide rod 2 is inserted into the spring base 5 in a matching way, and a gasket 7 is arranged between the guide rod 2 and the spring base 5; the first primary piston 1 and the second primary piston 4 are riveted to each other.

In this embodiment, play the guide effect to the connection between the primary piston, it is free nimble, reliable, avoid the external force friction in the piston assembly working process to reduce the abnormal sound and produce, and the solution car braking abnormal sound problem that can be better, and slow down the part damage that the subassembly frictionized each other and caused.

Example two

Compared with the first embodiment, the riveting type primary piston assembly provided by the utility model has the advantages that the guide rod 2 and the first primary piston 1 are integrally formed through machining. The coaxiality of the guide rod 2 and the first primary piston 1 is ensured.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A riveted joint type primary piston assembly is characterized by comprising a first primary piston (1), a guide rod (2), a first spring (3), a second primary piston (4), a spring base (5) and a second spring (6);

the guide rod (2) is horizontally arranged at the end part of the first primary piston (1) facing the second primary piston (4), and the guide rod (2) and the first primary piston (1) are coaxially arranged; the first spring (3) is sleeved on the guide rod (2), and the first spring (3) is connected with the first primary piston (1); the spring base (5) is arranged at the end of the second primary piston (4) facing the first primary piston (1); the second spring (6) is arranged on the periphery of the spring base (5); the guide rod (2) is inserted into the spring base (5) in a matching way, and a gasket (7) is arranged between the guide rod (2) and the spring base (5); the first primary piston (1) and the second primary piston (4) are riveted with each other.

2. Riveted joint primary piston assembly according to claim 1, characterized in that the guide rod (2) and the first primary piston (1) are integrally formed by machining.