CN218477495U

CN218477495U - External ABS combination valve

Info

Publication number: CN218477495U
Application number: CN202222962796.1U
Authority: CN
Inventors: 朱广富
Original assignee: Weifang Fujia Auto Parts Co ltd
Current assignee: Weifang Fujia Auto Parts Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-02-14
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses an external ABS combination valve relates to ABS combination valve field, which comprises a housin, the inside of casing is provided with piston and lower valve body, and the piston outside forms the brake gas cavity body, and brake gas cavity body below is provided with out the air cavity, is provided with down the air cavity below and gives vent to anger the air cavity and be provided with down the valve body cavity, down the valve body cavity sets up in lower valve body, a bypass gas circuit on the valve body cavity down is provided with the governing valve on this gas circuit, and the one end and the piston lumen intercommunication of valve body cavity are kept away from down to this gas circuit, the piston lumen sets up in the outer lane of piston, and gaseous accesss to the piston lumen through the governing valve, reduces the piston and receives ascending thrust, and then reduces to step on the unmovable sensation when stepping on the brake.

Description

External ABS combination valve

Technical Field

The utility model relates to a ABS combination valve field, in particular to external ABS combination valve.

Background

With the basic formation of highway backbone networks in China, large-tonnage and long-wheelbase semitrailers and trailers with the obvious cost advantage of ton-kilometer also increase year by year. When the long-wheelbase vehicle is emergently braked, wheels are in a locking and sliding state, so that the braking distance is prolonged, the vehicle deviates or sideslips, and the vehicle loses the steering capacity, and particularly, traffic accidents easily occur when the vehicle runs in bad weather and poor road conditions and runs at high speed.

Therefore, it is necessary to provide an external ABS combination valve to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an external ABS combination valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an external ABS combination valve, includes the casing, the inside of casing is provided with piston and lower valve body, and the outside brake gas cavity that forms of piston is provided with out the gas cavity below, is provided with down the valve body cavity below giving vent to anger the cavity, lower valve body cavity sets up in lower valve body, a bypass gas circuit on the valve body cavity down is provided with the governing valve on this gas circuit, and the one end and the piston lumen intercommunication of valve body cavity are kept away from down to this gas circuit, the piston lumen sets up in the outer lane of piston.

Preferably, the lower valve body cavity is composed of a space formed among an emergency piston, a valve seat and a valve, the emergency piston is arranged inside the lower valve body, the valve and the valve seat are sequentially distributed at the inner ring of the emergency piston from top to bottom, a first air source channel is arranged on the emergency piston, and the first air source channel is in butt joint with the air pressure of the main vehicle.

Preferably, a spring seat is fixedly arranged on the outer ring of the valve, a spring is fixedly connected to the lower end of the spring seat, and the bottom end of the spring is fixed to the upper surface of the lower end protruding portion of the valve seat.

Preferably, the air outlet cavity is formed by a space formed between the shell and the emergency piston, and one side of the shell is provided with a second air source channel for air pressure of the main vehicle to enter the air outlet cavity.

Preferably, a Y-shaped leather cup is arranged between the outer ring of the emergency piston and the inner ring of the shell, and the middle part of the emergency piston is sleeved with the Y-shaped leather cup.

The utility model discloses a technological effect and advantage:

1. the utility model discloses an external ABS combination valve, which comprises a housin, the inside of casing is provided with piston and lower valve body, and the outside brake gas cavity that forms of piston, brake gas cavity below are provided with out the air cavity, go out the air cavity below and are provided with down the valve body cavity, lower valve body cavity sets up in lower valve body, and gaseous accesss to the piston lumen through the governing valve, reduces the piston and receives ascending thrust, and then reduces to step on the brake and step on unmovable sensation occasionally.

Drawings

Fig. 1 is a schematic structural view of the external ABS combination valve of the present invention.

In the figure: brake air cavity 1, lower valve body cavity 2, play gas cavity 3, governing valve 4, piston lumen 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an as shown in fig. 1 an external ABS combination valve, which comprises a housin, the inside of casing is provided with piston and lower valve body, the outside brake gas cavity body 1 that forms of piston, brake gas cavity body 1 below is provided with out gas cavity 3, it is provided with down valve body cavity 2 to go out 3 below in gas cavity, lower valve body cavity 2 sets up in lower valve body, a bypass gas circuit on the lower valve body cavity 2, be provided with governing valve 4 on this gas circuit, the one end and the 5 intercommunications in piston cavity of valve body cavity 2 are kept away from down to this gas circuit, piston cavity 5 sets up in the outer lane of piston.

The lower valve body cavity 2 is composed of a space formed among an emergency piston, a valve seat and a valve, the emergency piston is arranged in the lower valve body, the valve and the valve seat are sequentially distributed at the inner ring of the emergency piston from top to bottom, a first air source channel is arranged on the emergency piston, and the first air source channel is in butt joint with the air pressure of the main vehicle.

A spring seat is fixedly arranged on the outer ring of the valve, a spring is fixedly connected to the lower end of the spring seat, and the bottom end of the spring is fixed to the upper surface of the lower end protruding portion of the valve seat.

The air outlet cavity 3 is composed of a space formed between the shell and the emergency piston, and one side of the shell is provided with a second air source channel for air pressure of the main vehicle to enter the air outlet cavity 3.

And a Y-shaped leather cup is arranged between the outer ring of the emergency piston and the inner ring of the shell, and the middle part of the emergency piston is sleeved with the Y-shaped leather cup.

When the brake is not performed, the main gas supply circuit supplies gas to the lower valve body cavity 2, the gas is always stored in the lower valve body cavity 2, and the lower valve body cavity 2 is in a sealed state at the moment.

During braking, gas enters a brake gas cavity 1, a compression piston moves downwards and pushes against a lower valve body to move downwards, at the moment, the lower valve body cavity 2 is communicated with a gas outlet cavity 3, and high-pressure gas enters the gas outlet cavity 3 and then is led to electromagnetic valves on two sides.

Because high-pressure gas has ascending power to the piston when flowing to gas outlet cavity 3, so by-pass gas circuit on lower valve body cavity 2, gas leads to piston lumen 5 through governing valve 4, reduces the piston and receives ascending thrust, and then reduces to step on the stationary sensation occasionally when stepping on the brake.

The upper side and the lower side of the regulating valve 4 are both provided with a valve needle and a spring, the middle part is provided with a valve plate, the compression amount of the springs on the two sides can be regulated through an external knob, and then the amount of gas flowing to the piston middle cavity 5 from the lower valve body cavity 2 is regulated, so that the purpose of regulating the air pressure is realized.

The device is named as: an improvement is made on the basis of an ABS emergency relay valve (the patent number is ZL 200520086502.7), and other structures in the device can refer to the patent, so that details are not repeated herein for the prior art.

Claims

1. An external ABS combination valve, includes the casing, its characterized in that: the inside of casing is provided with piston and lower valve body, and the piston outside forms brake gas cavity (1), and brake gas cavity (1) below is provided with goes out gas cavity (3), goes out gas cavity (3) below and is provided with down valve body cavity (2), lower valve body cavity (2) set up in lower valve body, a bypass gas circuit is gone up in lower valve body cavity (2), is provided with governing valve (4) on this gas circuit, and the one end and piston lumen (5) intercommunication of valve body cavity (2) are kept away from down to this gas circuit, piston lumen (5) set up in the outer lane of piston.

2. The external ABS combination valve according to claim 1, wherein: the lower valve body cavity (2) is composed of a space formed among an emergency piston, a valve seat and a valve, the emergency piston is arranged in the lower valve body, the valve and the valve seat are sequentially distributed at the inner ring of the emergency piston from top to bottom, a first air source channel is arranged on the emergency piston, and the first air source channel is in butt joint with the air pressure of the main vehicle.

3. The external ABS combination valve according to claim 2, wherein: a spring seat is fixedly arranged on the outer ring of the valve, a spring is fixedly connected to the lower end of the spring seat, and the bottom end of the spring is fixed to the upper surface of the lower end protruding portion of the valve seat.

4. The external ABS combination valve according to claim 3, characterized in that: the air outlet cavity (3) is composed of a space formed between the shell and the emergency piston, and one side of the shell is provided with a second air source channel for the air pressure of the main vehicle to enter the air outlet cavity (3).

5. The external ABS combination valve according to claim 4, wherein: and a Y-shaped leather cup is arranged between the outer ring of the emergency piston and the inner ring of the shell, and the middle part of the emergency piston is sleeved with the Y-shaped leather cup.