CN219639309U - Full-sealed brake air chamber assembly capable of realizing underwater braking - Google Patents

Abstract

The utility model provides a full-sealed brake air chamber assembly capable of realizing underwater braking, and relates to the field of automobile brake systems. On one hand, the utility model can lead the breathing hole out to the position above the water surface through the ventilation pipeline to be communicated with the atmosphere so as to prevent water from entering the breathing cavity of the brake air chamber; meanwhile, the utility model directly adopts the pipe joint to install the ventilation pipeline, so that the installation structure at the breathing hole can be simplified, and the assembly of workers is facilitated; on the other hand, the filter assembly can prevent larger-volume foreign matters from entering the ventilation pipeline, so that the ventilation effect of the breathing holes is prevented from being influenced.

Description

Full-sealed brake air chamber assembly capable of realizing underwater braking

Technical Field

The utility model relates to the field of automobile braking systems, in particular to a full-sealed braking air chamber assembly capable of realizing underwater braking.

Background

Currently, the existing heavy-duty car is braked by adopting a pneumatic brake, and when braking action is required, a brake air chamber of the pneumatic brake can convert air pressure into actuating force required by the pneumatic brake through a mechanical structure of the pneumatic brake, so that friction pairs of the pneumatic brake are pushed to be attached to complete braking of the car. Meanwhile, a breathing hole is formed in a breathing cavity shell of the traditional braking air chamber, so that the breathing cavity of the braking air chamber is directly communicated with the atmosphere, and the breathing problem of the braking structure is solved.

However, in the running process of the automobile, due to the characteristic that the running conditions of the automobile are diversified, when the automobile runs under the application scene requirement that the wading depth reaches 800mm, the brake air chamber is required to finish braking under water, sundries and water exist at the risk that the sundries and the water enter the breathing cavity from the breathing hole, and even the situation that the protective sleeve of the brake air chamber bursts or falls off when the air chamber is braked due to the fact that the water enters the breathing cavity is caused, so that the air chamber is caused to enter water and lose efficacy, and the running safety of the automobile is influenced. Therefore, the existing brake chamber is generally provided with waterproof and dustproof components in the breathing hole, and the breathing structure for the spring brake chamber and the spring brake chamber provided by Chinese patent CN211175134U adopt the waterproof mode. However, when the waterproof treatment is performed on the breathing hole of the brake chamber in the above manner, in order to ensure the sealing installation effect, the breathing hole structure of the brake chamber needs to be adaptively changed, so that the breathing hole structure of the brake chamber is complex, and the workload of assembly staff is increased.

In addition, some brake chambers prevent water from entering the breathing holes by installing connecting pipes and/or extension pipes at the breathing holes, and the anti-impurity structure of the brake system and the automobile provided by Chinese patent CN208665164U adopt the water inlet preventing mode. But when adopting this kind of mode to prevent into water treatment to brake chamber's breathing hole department, owing to it lacks filtering structure, only set up the pipeline through the bending and play the purpose that prevents debris and water enter into in the breathing hole in the environment at car middle part, in long-term use, it appears the problem that the debris of great volume is stopped up in connecting pipe or extension pipe easily, and then influences the ventilation effect of breathing hole.

Disclosure of Invention

The utility model aims to provide and design a full-sealed brake air chamber assembly capable of realizing underwater braking, aiming at the defects of complex structure, poor sundry prevention effect and the like of a sundry prevention structure arranged at a breathing hole of the existing brake system, and simultaneously has the advantages of simple structure, convenience in installation, good sundry prevention effect and the like.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: a full-sealed brake air chamber assembly capable of realizing underwater braking comprises a brake air chamber, wherein a breathing hole is formed in a breathing cavity shell of the brake air chamber, a pipe joint is fixedly arranged at the breathing hole, the end part of the pipe joint is communicated with a ventilation pipeline in a sealing manner, and a filtering component is arranged at one end, far away from the pipe joint, of the ventilation pipeline. On one hand, the utility model can lead the breathing holes out to the position above the water surface through the ventilation pipeline to be communicated with the atmosphere so as to prevent water from entering the breathing cavity of the brake air chamber; meanwhile, the utility model directly adopts the pipe joint to install the ventilation pipeline, so that the installation structure at the breathing hole can be simplified, and the assembly of workers is facilitated; on the other hand, the filter assembly can prevent larger-volume foreign matters from entering the ventilation pipeline, so that the ventilation effect of the breathing holes is prevented from being influenced.

Further, the pipe joint is welded with the breathing cavity shell, and the sealing performance of the welding position is guaranteed through the adopted welding process.

Further, the end of the pipe joint is provided with a journal, the journal is inserted into the breathing hole and welded with the breathing cavity shell, and the length of the journal is smaller than the thickness of the breathing cavity shell.

Further, the pipe joint is connected with the ventilation pipeline through a threaded connection structure, a sealing structure is arranged between the pipe joint and the ventilation pipeline, and the sealing of the joint of the pipe joint and the ventilation pipeline is realized through the sealing structure.

Further, the sealing structure comprises a thread sealant coated between the pipe joint and the ventilation pipeline, and sealing connection between the pipe joint and the ventilation pipeline is realized through the thread sealant.

Further, the sealing structure comprises an O-shaped gasket arranged between the pipe joint and the ventilation pipeline, and sealing connection between the pipe joint and the ventilation pipeline is realized through the O-shaped gasket.

Further, the pipe joint is inserted into the ventilation pipeline, the pipe joint is in interference fit with the ventilation pipeline, and the sealing of the joint of the pipe joint and the ventilation pipeline is realized through the interference fit structure.

Further, the filter component comprises a filter screen, the filter screen is fixedly arranged at the tail end of the ventilation pipeline, and the filter screen is used for preventing a large volume of foreign matters from entering the ventilation pipeline, so that the ventilation effect of the breathing hole is prevented from being influenced.

Further, only one breathing hole is formed in the breathing cavity shell of the brake air chamber, and other openings are not formed.

Further, a positioning groove is formed in the outer wall of the breathing cavity shell of the brake air chamber, a welding stud is welded in the positioning groove, and the brake air chamber is mounted through the welding stud.

From the above technical scheme, the utility model has the following advantages: on one hand, the utility model can lead the breathing hole out to the position above the water surface through the ventilation pipeline to be communicated with the atmosphere so as to prevent water from entering the breathing cavity of the brake air chamber; meanwhile, the pipe joint is directly adopted for installing the ventilation pipeline, and the pipe joint is directly welded with the breathing cavity shell of the brake air chamber, so that the installation structure of the breathing hole can be simplified, and the assembly of workers is facilitated; on the other hand, the filter assembly can prevent larger-volume foreign matters from entering the ventilation pipeline, so that the ventilation effect of the breathing holes is prevented from being influenced.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a specific embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partial enlarged view at B in fig. 1.

In the figure: 1. a filter screen; 2. a ventilation line; 3. a pipe joint; 31. an O-ring; 4. a brake chamber; 41. a breathing chamber housing; 411. a breathing hole; 412. a positioning groove; 5. and welding the stud.

Detailed Description

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.

As shown in fig. 1 to 3, the present utility model provides a fully sealed brake chamber assembly capable of realizing underwater braking, which comprises a brake chamber 4, a pipe joint 3 and a ventilation pipeline 2. Wherein, two positioning grooves 412 are arranged on the outer wall of the breathing cavity shell 41 of the brake air chamber 4, and welding studs 5 are welded in the two positioning grooves 412; the breathing chamber housing 41 of the brake chamber 4 is provided with a breathing hole 411 and no other openings are provided.

One end of the pipe joint 3 is provided with a journal, the length of the journal is smaller than the thickness of the breathing cavity shell 41, and the journal of the pipe joint 3 is inserted into the breathing hole 411 and welded with the breathing cavity shell 41, and the sealing performance of the welding position is ensured by the welding process adopted by the journal. The other end of the pipe joint 3 is communicated with the ventilation pipeline 2 in a sealing way, and the pipe joint 3 and the ventilation pipeline 2 can be connected in a threaded connection, a quick-insertion structure and the like. Specifically, when the pipe joint 3 and the ventilation pipeline 2 are connected together through a threaded connection structure, the pipe joint 3 and the ventilation pipeline 2 can be sealed by a threaded sealant coated between the pipe joint 3 and the ventilation pipeline 2, and also can be sealed by an O-shaped gasket 31 arranged between the pipe joint 3 and the ventilation pipeline 2; when the pipe joint 3 and the ventilation pipeline 2 are connected together through the quick-insertion structure, the connection part of the pipe joint 3 and the ventilation pipeline 2 can be sealed through the interference fit structure.

The one end that keeps away from coupling 3 on the ventilation line 2 is provided with filter unit, filter unit includes fixed mounting at ventilation line 2's terminal filter screen 1, and its accessible this filter screen 1 prevents that great volumetric foreign matter from entering into in the ventilation line, and then avoids influencing the ventilation effect of breathing hole 411.

On the one hand, the utility model can lead the breathing holes 411 out to the position above the water surface through the ventilation pipeline 2 to be communicated with the atmosphere so as to prevent water from entering the breathing cavity of the brake air chamber 4; meanwhile, the pipe joint 3 is directly adopted for installing the ventilation pipeline 2, so that the installation structure at the breathing hole 411 can be simplified, and the assembly of workers is facilitated; on the other hand, the filter assembly can prevent a larger volume of foreign matters from entering the ventilation pipeline 2, so that the ventilation effect of the breathing holes 411 is prevented from being influenced.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A full-sealed brake air chamber assembly capable of realizing underwater braking comprises a brake air chamber, wherein a breathing hole is formed in a breathing cavity shell of the brake air chamber; the breathing pipe is characterized in that a pipe joint is fixedly arranged at the breathing hole, the end part of the pipe joint is communicated with a ventilation pipeline in a sealing way, and a filtering component is arranged at one end, far away from the pipe joint, of the ventilation pipeline.

2. The fully sealed brake chamber assembly capable of achieving underwater braking of claim 1 wherein the tube fitting is welded to the breathing chamber housing.

3. The full-sealed brake chamber assembly capable of realizing underwater braking according to claim 2, wherein the end of the pipe joint is provided with a journal, and the journal is inserted into the breathing hole and welded with the breathing chamber housing.

4. A fully sealed brake chamber assembly capable of realizing underwater braking according to claim 1, 2 or 3, wherein the pipe joint and the ventilation pipeline are connected together through a threaded connection structure, and a sealing structure is arranged between the pipe joint and the ventilation pipeline.

5. The full seal brake chamber assembly for enabling under water braking of claim 4, wherein the sealing structure comprises a thread sealant applied between the pipe fitting and the vent line.

6. The full seal brake chamber assembly for enabling under-water braking of claim 4, wherein the sealing structure comprises an O-ring disposed between the pipe fitting and the vent line.

7. A fully sealed brake chamber assembly capable of realizing underwater braking according to claim 1, 2 or 3, wherein the pipe joint is inserted into the ventilation pipeline, and the pipe joint is in interference fit with the ventilation pipeline.

8. A fully sealed brake chamber assembly capable of providing under water braking according to claim 1, 2 or 3 wherein the filter assembly comprises a filter screen fixedly mounted at the end of the vent line.

9. A fully sealed brake chamber assembly capable of realizing underwater braking according to claim 1, 2 or 3, wherein the breathing chamber housing of the brake chamber is provided with only one breathing hole.

10. The full-sealed brake chamber assembly capable of realizing underwater braking according to claim 1, 2 or 3, wherein a positioning groove is formed in the outer wall of the breathing chamber shell of the brake chamber, and a welding stud is welded in the positioning groove.