CN-224197762-U - Rail vehicle braking system and rail vehicle

CN224197762UCN 224197762 UCN224197762 UCN 224197762UCN-224197762-U

Abstract

The utility model discloses a rail vehicle braking system and a rail vehicle, wherein a main pipe of the rail vehicle braking system is provided with a rescue inlet; the main pipe is communicated with the input port of the pressure valve, the output port of the pressure valve is communicated with the input port of the brake, the main pipe is communicated with the input port of the pedal valve, the output port of the pedal valve is communicated with the input port of the switch valve, and the output port of the switch valve and the rescue pressure regulating pipe can select a pressure regulating port of the pressure valve to convey fluid to and regulate the pressure of the fluid flowing from the input port of the pressure valve to the output port of the pressure valve. The device can perform conventional braking on the railway vehicle and synchronously adjust the braking force for conventional braking on the railway vehicle, can perform rescue braking on the railway vehicle and synchronously adjust the braking force for rescue braking on the railway vehicle, and can not influence the rescue vehicle to control the railway vehicle to perform rescue running or rescue braking even if the pedal valve of the railway vehicle is operated by mistake.

Inventors

Kang Quanquan
YAO TINGTING
FU ZITONG
Mou Zhicheng
LIU ZHIXIN
WANG XUQING
WEN JINYU
JIANG KE
REN HANG
JIANG LONG

Assignees

中车大连机车车辆有限公司

Dates

Publication Date: 20260505
Application Date: 20250626

Claims (10)

1. The rail vehicle braking system is characterized by comprising a main pipe (1), a pressure valve (2), a brake (3) and an adjusting unit (4), wherein the main pipe (1) is provided with a rescue inlet, the main pipe (1) is communicated with an input port of the pressure valve (2), an output port of the pressure valve (2) is communicated with an input port of the brake (3), the adjusting unit (4) comprises an adjusting subunit (41), and the adjusting subunit (41) comprises: A pedal valve (411) and a switch valve (412), wherein the main pipe (1) is communicated with an input port of the pedal valve (411), and an output port of the pedal valve (411) is communicated with an input port of the switch valve (412); And the rescue pressure regulating pipe (413), an output port of the switch valve (412) and the rescue pressure regulating pipe (413) can select to convey fluid to a pressure regulating port of the pressure valve (2) so as to regulate the pressure of the fluid flowing from the input port of the pressure valve (2) to the output port of the pressure valve (2).
2. The railway vehicle braking system according to claim 1, characterized in that the regulating subunit (41) further comprises a first shuttle valve (414), one input port of the first shuttle valve (414) being in communication with the output port of the on-off valve (412), the other input port of the first shuttle valve (414) being in communication with the output of the rescue regulator pipe (413), the output port of the first shuttle valve (414) being in communication with the pressure regulating port of the pressure valve (2).
3. The railway vehicle braking system according to claim 1, characterized in that said regulating unit (4) comprises two said regulating sub-units (41), the two regulating sub-units (41) being arranged in a one-to-one correspondence to the head car (110) and the tail car (120); The regulating subunit (41) further comprises a first shuttle valve (414), one input port of the first shuttle valve (414) is communicated with the output port of the switch valve (412), and the other input port of the first shuttle valve (414) is communicated with the output end of the rescue pressure regulating pipe (413); The regulating unit (4) further comprises a second shuttle valve (42), the output ports of the first shuttle valves (414) of the two regulating subunits (41) are communicated with the two input ports of the second shuttle valve (42) in one-to-one correspondence, and the output port of the second shuttle valve (42) is communicated with the pressure regulating port of the pressure valve (2).
4. A railway vehicle braking system according to claim 3, characterized in that the number of pressure valves (2) and the number of regulating units (4) are two, the two pressure valves (2) and the two regulating units (4) being arranged in a one-to-one correspondence.
5. The railway vehicle braking system according to claim 4, further comprising two brake pedals (5), one of which brake pedal (5) is arranged at the head car (110) and is used for adjusting the opening of two pedal valves (411) located in the head car (110), and the other brake pedal (5) is arranged at the tail car (120) and is used for adjusting the opening of two pedal valves (411) located in the tail car (120).
6. Railway vehicle braking system according to any of claims 1-5, characterized in that the manifold (1) is provided with two said rescue inlets, one of which is located in the head car (110) and the other in the tail car (120); The position of the inlet of the pedal valve (411) communicated with the main pipe (1) is located between the two rescue inlets, and the position of the inlet of the pressure valve (2) communicated with the main pipe (1) is located between the two rescue inlets.
7. Railway vehicle braking system according to any of claims 1-5, characterized in that it further comprises a first closure plug (6) for closing off the rescue entrance.
8. Railway vehicle braking system according to any of claims 1-5, characterized in that it further comprises a second blocking plug (7) for blocking the input end of the rescue pressure regulating pipe (413).
9. The railway vehicle braking system of any of claims 1 to 5, wherein the on-off valve (412) is a two-position two-way electromagnetic on-off valve.
10. Rail vehicle, characterized in that it comprises a rail vehicle brake system according to any of claims 1-9.

Description

Rail vehicle braking system and rail vehicle Technical Field The utility model relates to the technical field of railway vehicles, in particular to a railway vehicle braking system and a railway vehicle. Background As one of the important components of a rail vehicle, the performance of the brake system directly affects the running safety of the rail vehicle. At present, in order that a railway vehicle can be timely rescued in the unexpected parking process, a railway vehicle braking system in the prior art is provided with a rescue communication port and a shuttle valve, the output ends of the rescue communication port and the braking control valve are communicated with two input ends of the shuttle valve in one-to-one correspondence, and the output end of the shuttle valve is communicated with the input end of each brake on the railway vehicle. Before the rail vehicle is rescued by the rescue vehicle, the tail part of the rescue vehicle is connected with the front end of the rail vehicle through a traction rod, the rescue communication port is communicated with the braking air outlet of the rescue vehicle, the rail vehicle is driven to synchronously run by the rescue vehicle in the process of rescuing the rail vehicle by the rescue vehicle, and the wind energy output by the braking air outlet of the rescue vehicle can synchronously brake both the rescue vehicle and the rail vehicle, so that the running safety of the rail vehicle is effectively improved. However, in the process of rescuing the rail vehicle by the rescue vehicle, the brake pedal assembly of the rail vehicle is touched by mistake to cause the error braking, so that the rescue vehicle and the rail vehicle are mutually pulled or extruded, the traction rod is deformed and broken, and even the posture of the rescue vehicle and/or the rail vehicle is abnormal. Disclosure of utility model The utility model aims to provide a rail vehicle braking system and a rail vehicle, so as to solve the problems of the rail vehicle braking system in the prior art. To achieve the purpose, the utility model adopts the following technical scheme: The rail vehicle braking system comprises a main pipe, a pressure valve, a brake and an adjusting unit, wherein the main pipe is provided with a rescue inlet, the main pipe is communicated with an input port of the pressure valve, an output port of the pressure valve is communicated with an input port of the brake, the adjusting unit comprises an adjusting subunit, and the adjusting subunit comprises: The main pipe is communicated with the input port of the pedal valve, and the output port of the pedal valve is communicated with the input port of the switch valve; The rescue pressure regulating pipe and the output port of the switch valve can select to convey fluid to the pressure regulating port of the pressure valve, and the pressure of the fluid flowing from the input port of the pressure valve to the output port of the pressure valve is regulated. As a preferable mode of the above-mentioned railway vehicle braking system, the regulating subunit further includes a first shuttle valve, an input port of the first shuttle valve is communicated with an output port of the switch valve, another input port of the first shuttle valve is communicated with an output end of the rescue pressure regulating pipe, and an output port of the first shuttle valve is communicated with a pressure regulating port of the pressure valve. As a preferable scheme of the above-mentioned railway vehicle braking system, the adjusting unit includes two adjusting subunits, and the two adjusting subunits are arranged on the head car and the tail car in a one-to-one correspondence; the regulating subunit further comprises a first shuttle valve, one input port of the first shuttle valve is communicated with the output port of the switch valve, and the other input port of the first shuttle valve is communicated with the output end of the rescue pressure regulating pipe; The regulating unit further comprises a second shuttle valve, the output ports of the first shuttle valves of the two regulating subunits are communicated with the two input ports of the second shuttle valve in one-to-one correspondence, and the output port of the second shuttle valve is communicated with the pressure regulating port of the pressure valve. As a preferable scheme of the railway vehicle braking system, the number of the pressure valves and the regulating units is two, and the two pressure valves and the two regulating units are arranged in a one-to-one correspondence manner. As a preferable mode of the above-mentioned railway vehicle brake system, the railway vehicle brake system further includes two brake pedals, one of which is provided in the head car and is used for adjusting the opening of the two pedal valves located in the head car, and the other of which is provided in the tail car and is used for adjusting the opening of the two pedal valves located in the tail car