CN217301367U

CN217301367U - Piston structure for automobile brake system

Info

Publication number: CN217301367U
Application number: CN202122254369.3U
Authority: CN
Inventors: 李仪平; 沃春耀
Original assignee: Zhejiang Antong Auto Parts Co ltd
Current assignee: Zhejiang Antong Auto Parts Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-08-26
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a piston structure for automobile brake system, including piston body, spring holder and return spring, return spring's one end and this body coupling of piston, return spring's the other end and spring holder connection, the one end that piston body is close to the spring holder is equipped with the guide bar, is equipped with the guiding hole on the spring holder, and the one end setting of guide bar is in the guiding hole, and the one end that the spring holder is close to piston body is equipped with first spacing ring, and the one end of guide bar setting in the guiding hole is equipped with the second spacing ring of riveting soon and forming by the guide bar tip. The utility model provides a piston structure for car braking system, relative and the mode that adopts the fix with screw is more reliable stable, and the assembling process can realize mechanization very easily, and assembly efficiency is high.

Description

Piston structure for automobile brake system

Technical Field

The utility model belongs to the technical field of car braking system technique and specifically relates to a piston structure for car braking system is related to.

Background

The piston structure is an indispensable structure in an automobile brake system, the brake system is an important safety component in an automobile, and the reliability of the piston structure directly influences the safety of the brake system. In the existing piston structure, a piston body and a spring seat are assembled and fixed by screws, so that looseness may occur, and the reliability needs to be improved. Therefore, it is desirable to design a piston structure for a brake system of an automobile with improved reliability.

Disclosure of Invention

The utility model discloses an overcome among the prior art piston structure's piston body and spring holder adoption screw assembly fixed, the not hard up not enough of probably appearing, provide a piston structure for car braking system, have higher reliability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a piston structure for automobile brake system, including the piston body, spring holder and return spring, return spring's one end and this body coupling of piston, return spring's the other end and spring holder connection, the one end that the piston body is close to the spring holder is equipped with the guide bar, be equipped with the guiding hole on the spring holder, the one end setting of guide bar is in the guiding hole, the one end that the spring holder is close to the piston body is equipped with first spacing ring, the one end that the guide bar setting is in the guiding hole is equipped with the second spacing ring of riveting soon and forming by the guide bar tip.

Among the above-mentioned technical scheme, need wash before each part assembly and weather, during piston structure assembly, establish return spring cover in the spring holder outside, stretch into the spring holder with the guide bar again, then adopt to rivet soon the equipment with the guide bar setting in the one end of guiding hole and rivet soon, make it form the second spacing ring, make piston body and spring seat link together, can not drop. The structure is more reliable and stable than the mode of adopting the screw fixation, and the assembly process can realize mechanization very easily, and assembly efficiency is high.

Preferably, the side wall of the guide rod is provided with an annular groove, the annular groove is provided with a gasket, the gasket is arranged between the first limiting ring and the second limiting ring, and the second limiting ring compresses the gasket. The gasket can play location and limiting displacement when riveting soon, be favorable to the second spacing ring to form more, during piston structure installs, establish return spring housing in the spring holder outside, stretch into the spring holder with the guide bar again, the annular is put into to the other end that has the guiding hole with the gasket again, one side of annular orientation spring holder is open structure this moment, then adopt to rivet soon equipment soon and rivet soon the guide bar setting in the guiding hole's one end, make it form the second spacing ring, block the gasket in the annular, make piston body and spring seat be in the same place, can not drop.

Preferably, an outer side wall of the gasket is in contact with an inner side wall of the guide hole. The structure can lead the gasket to play a guiding role when the piston body moves.

Preferably, the first limiting ring and the spring seat are of an integrally formed structure.

Preferably, the piston body is provided with an isolation sleeve, the guide rod is arranged on the inner side of the isolation sleeve, and the inner diameter of the isolation sleeve is larger than the outer diameter of the spring seat. The structure can make the connecting structure more stable and compact.

Preferably, the return spring is sleeved outside the guide rod and the spring seat. The structure can increase the length of the return spring, and the spring force is changed less under the same length change.

The utility model has the advantages that: (1) compared with the mode of fixing by adopting the screws, the method is more reliable and stable, and the assembly process can be easily mechanized, so that the assembly efficiency is high; (2) the gasket can play a role in positioning and limiting during spin riveting, and is more favorable for forming a second limiting ring; (3) the gasket can make the gasket play the guide effect when the piston body moves.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: piston body 1, guide bar 1.1, second spacing ring 1.2, annular 1.3, spacer sleeve 1.4, spring holder 2, guiding hole 2.1, first spacing ring 2.2, return spring 3, gasket 4.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Example 1:

as shown in fig. 1, a piston structure for automobile brake system, including piston body 1, spring holder 2 and return spring 3, return spring 3's one end is connected with piston body 1, return spring 3's the other end is connected with spring holder 2, piston body 1 is close to the one end of spring holder 2 and is equipped with guide bar 1.1, be equipped with guiding hole 2.1 on the spring holder 2, the one end setting of guide bar 1.1 is in guiding hole 2.1, spring holder 2 is close to the one end of piston body 1 and is equipped with first spacing ring 2.2, the one end that guide bar 1.1 set up in guiding hole 2.1 is equipped with the second spacing ring 1.2 that is riveted the formation soon by guide bar 1.1 tip. Be equipped with annular 1.3 on the lateral wall of guide bar 1.1, be equipped with gasket 4 on annular 1.3, gasket 4 sets up between first spacing ring 2.2 and second spacing ring 1.2, and second spacing ring 1.2 compresses tightly gasket 4. The outer side wall of the spacer 4 is in contact with the inner side wall of the guide hole 2.1. The first limiting ring 2.2 and the spring seat 2 are of an integrally formed structure. The piston body 1 is provided with an isolation sleeve 1.4, the guide rod 1.1 is arranged on the inner side of the isolation sleeve 1.4, and the inner diameter of the isolation sleeve 1.4 is larger than the outer diameter of the spring seat 2. The return spring 3 is sleeved on the outer sides of the guide rod 1.1 and the spring seat 2.

Among the above-mentioned technical scheme, need wash before each part assembly and weather, during piston structure assembly, establish return spring 3 cover in the spring holder 2 outside, stretch into spring holder 2 with guide bar 1.1 again, then adopt to rivet soon the equipment with the one end of guide bar 1.1 setting in guiding hole 2.1 and rivet soon, make it form second spacing ring 1.2, make piston body 1 and spring holder 2 link together, can not drop. The structure is more reliable and stable than the mode of adopting the screw fixation, and the assembly process can realize mechanization very easily, and assembly efficiency is high. Gasket 4 can play location and limiting displacement when riveting soon, be favorable to second spacing ring 1.2 to form more, during the installation of piston structure, establish return spring 3 cover in the spring holder 2 outside, stretch into spring holder 2 with guide bar 1.1 again, have the other end of guiding hole 2.1 to put into annular 1.3 with gasket 4 again, one side that annular 1.3 was towards spring holder 2 this moment is open structure, then adopt to rivet soon the equipment with guide bar 1.1 setting in guiding hole 2.1 one end and rivet soon, make it form second spacing ring 1.2, block gasket 4 in annular 1.3, make piston body 1 link together with spring holder 2, can not drop. The structure can lead the gasket 4 to play a role of guiding when the piston body 1 moves.

The utility model has the advantages that: (1) compared with the mode of fixing by adopting the screws, the method is more reliable and stable, and the assembly process can be easily mechanized, so that the assembly efficiency is high; (2) the gasket 4 can play a role in positioning and limiting during spin riveting, and is more beneficial to forming the second limiting ring 1.2; (3) the gasket 4 can make the gasket 4 play a guiding role when the piston body 1 moves.

Claims

1. The utility model provides a piston structure for automobile brake system, characterized by, including the piston body, spring holder and return spring, return spring's one end and this body coupling of piston, return spring's the other end and spring holder connection, the one end that the piston body is close to the spring holder is equipped with the guide bar, be equipped with the guiding hole on the spring holder, the one end setting of guide bar is in the guide hole, the one end that the spring holder is close to the piston body is equipped with first spacing ring, the one end of guide bar setting in the guide hole is equipped with the second spacing ring of riveting soon and forming by the guide bar tip.

2. The piston structure for an automobile braking system according to claim 1, wherein the guide rod has a ring groove formed in a side wall thereof, and a gasket is disposed on the ring groove and disposed between the first and second retainer rings, and the second retainer ring compresses the gasket.

3. The piston structure for a brake system of an automobile as claimed in claim 2, wherein an outer sidewall of the spacer is in contact with an inner sidewall of the guide hole.

4. The piston structure for an automobile braking system according to claim 1, 2 or 3, wherein the first retainer ring and the spring seat are of an integrally formed structure.

5. The piston structure for an automobile braking system according to claim 4, wherein the piston body is provided with a spacer sleeve, the guide rod is arranged inside the spacer sleeve, and the inner diameter of the spacer sleeve is larger than the outer diameter of the spring seat.

6. The piston structure for a brake system of an automobile as claimed in claim 1, 2 or 3, wherein the return spring is sleeved outside the guide rod and the spring seat.