CN208535038U

CN208535038U - A kind of piston dust cover for brake assembly

Info

Publication number: CN208535038U
Application number: CN201821068598.8U
Authority: CN
Inventors: 李�杰; 冯晓虹; 凌利峰; 张水清; 金清波
Original assignee: Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Current assignee: Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Priority date: 2018-07-06
Filing date: 2018-07-06
Publication date: 2019-02-22
Anticipated expiration: 2028-07-06

Abstract

The utility model discloses a kind of piston dust covers for brake assembly.It including being located at the skeleton of outer ring and positioned at the piston hold-fast ring of inner ring, is connected between skeleton and piston hold-fast ring by dust-proof flanging, skeleton is pressed into the annular groove of caliper end face, and piston hold-fast ring is in the annular groove of piston side；The annular groove of skeleton and caliper interference fit, and inside dust ring and outside dust ring are respectively equipped in the interior lateral surface of skeleton；Dust-proof flanging is from skeleton to the coniform connection structure piston hold-fast ring.Brake assembly effectively reliable dust and water protection effect in whole life cycle can be effectively ensured in the utility model, reach the purpose of sealing, in addition can be reduced the risk of durable rupture at dust cover wrinkle.

Description

A kind of piston dust cover for brake assembly

Technical field

The utility model relates to a kind of piston dust covers for brake assembly.

Background technique

It is public from initial 2 years 60000 at present regardless of from international or domestic vehicle enterprise, all the three guarantees time limit is required in the continuous improvement In, 150,000 kilometers of 5 years till now require to increase several times to the useful life longevity of brake itself, and dust cover is whole It is (non-easy worn part) being changed without in a brake life cycle, it is excellent anti-that this just needs dust cover to have in service life Dirt, waterproof performance and reasonable extended configuration, and design organization conventional at present is single-side sealing, and does not have sealing ring Etc. structures have a certain proportion of leakage failure in after market.

Utility model content

The purpose of this utility model is exactly to propose a kind of piston dust cover for brake assembly, and system can be effectively ensured The reliable dust and water protection effect in whole life cycle of dynamic device assembly, reaches the purpose of sealing.In addition, being stretched out in dust cover Amount aspect, only one layer of wrinkle are to be able to satisfy the effective of piston to use stroke, reduce the risk of durable rupture at dust cover wrinkle.

The overall technological scheme of the utility model is as follows to achieve the above object:

The utility model includes the skeleton positioned at outer ring and piston hold-fast ring positioned at inner ring, skeleton and piston hold-fast ring it Between connected by dust-proof flanging, skeleton is pressed into the annular groove of caliper end face, piston hold-fast ring be fitted to piston side ring In shape slot.

The annular groove of the skeleton and caliper is interference fitted, and dust-proof on the inside of the interior lateral surface of skeleton is respectively equipped with Ring and outside dust ring.

The dust-proof flanging is from skeleton to the coniform connection structure piston hold-fast ring.

The piston dust cover is made of rubber.

The skeleton and piston hold-fast ring is made into integration.

The beneficial effects of the utility model are:

The utility model can be effectively ensured brake assembly effectively reliable dust and water protection in whole life cycle and make With reaching the purpose of sealing.In addition, only one layer of wrinkle are the effective use for being able to satisfy piston in terms of dust cover overhang Stroke reduces the risk of durable rupture at dust cover wrinkle.

Detailed description of the invention

Fig. 1 is the scheme of installation of the utility model piston dust cover；

Fig. 2 is the scheme of installation of the utility model piston dust cover；

Fig. 3 is a kind of piston dust cover schematic diagram of the utility model；

Fig. 4 is a kind of piston dust cover axonometric drawing of the utility model.

In figure: brake pad assembly 1, piston dust cover 2, caliper 3, piston 4, outside dust ring 5, skeleton 6, inside dust ring 7, dust-proof flanging 8, piston hold-fast ring 9.

Specific embodiment

With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.

As depicted in figs. 1 and 2, the piston dust cover 2 of the utility model is arranged in brake pad assembly 1, caliper 3 and piston 4 Between, after braking brake pressure is established, piston 4 pushes brake block 1, while driving piston dust cover 2, clamps brake disc, generates Braking moment achievees the purpose that service brake.

As shown in figure 3, including the piston hold-fast ring 9 positioned at the skeleton 6 of outer ring and positioned at inner ring, skeleton 6 and piston are held tightly It is connected between ring 9 by dust-proof flanging 8, skeleton 6 is pressed into the annular groove of 3 end face of caliper, and piston hold-fast ring 9 is fitted to piston In the annular groove of 4 sides.

The annular groove of skeleton 6 and caliper 7 interference fit, and inside dust ring 7 is respectively equipped in the interior lateral surface of skeleton 6 With outside dust ring 5.It is multi-layer sealed and logical that two sides are carried out particular by multiple tracks outer side seal ring 6 and multiple tracks inner seal ring 7 Cross the interference fit of both sides sealing ring and caliper annular groove.

Dust-proof flanging 8 is from skeleton 6 to the coniform connection structure piston hold-fast ring 9.Only one section of conical transition Section, i.e. only one layer of wrinkle are to be able to satisfy the effective of piston to use stroke, reduce the risk of durable rupture at dust cover wrinkle.

The utility model ultimately forms stereochemical structure as shown in Figure 4, using the confined space, reaches maximum dust cover and stretches Output meets the effective of piston and uses stroke.

Examples detailed above is the further explanation to the utility model, is not the specific restriction to the utility model, any right Structure after the utility model simple transformation belongs to the protection scope of the utility model.

Claims

1. a kind of piston dust cover for brake assembly, it is characterised in that: piston dust cover includes the skeleton positioned at outer ring (6) and positioned at inner ring piston hold-fast ring (9), between skeleton (6) and piston hold-fast ring (9) by dust-proof flanging (8) connect, bone Frame (6) is pressed into the annular groove of caliper (3) end face, and piston hold-fast ring (9) is in the annular groove of piston (4) side.

2. a kind of piston dust cover for brake assembly according to claim 1, it is characterised in that: the skeleton (6) it is interference fitted with the annular groove of the caliper of brake assembly (3), and is respectively equipped with inside in the interior lateral surface of skeleton (6) Dust ring (7) and outside dust ring (5).

3. a kind of piston dust cover for brake assembly according to claim 1, it is characterised in that: described is dust-proof Flanging (8) is from skeleton (6) to the coniform connection structure piston hold-fast ring (9).

4. a kind of piston dust cover for brake assembly according to claim 1, it is characterised in that: the piston Dust cover is made of rubber.

5. a kind of piston dust cover for brake assembly according to claim 1, it is characterised in that: the skeleton (6) it is made into integration with piston hold-fast ring (9).