CN219619082U

CN219619082U - Combined braking device of driving operation type vehicle

Info

Publication number: CN219619082U
Application number: CN202223503578.8U
Authority: CN
Inventors: 李泽林; 霍乐乐; 李鹏; 赵雷; 李文博
Original assignee: Shaanxi Heavy Duty Automobile Co Ltd
Current assignee: Shaanxi Heavy Duty Automobile Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-09-01
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to a combined braking device of a traveling operation type vehicle, which is characterized in that the output end of a two-way check valve is connected with a traveling relay valve, one of the two input ends of the two-way check valve is connected with a brake master valve, so that conventional traveling braking is realized, the other end of the two-way check valve is connected with an air source through an electromagnetic valve, the electromagnetic valve is powered on and powered off, the traveling braking of a loading control chassis is realized, and the loading combined braking of different traveling operation vehicle types can be realized. The emergency braking signal is input through the upper assembly, so that the chassis service braking system is connected to brake, the braking force input of the whole vehicle is increased, and the safety improvement is preferably ensured.

Description

Combined braking device of driving operation type vehicle

Technical Field

The utility model belongs to the technical field of vehicle engineering, and particularly relates to a combined braking device of a driving operation type vehicle.

Background

The existing bridge inspection vehicle and other vehicle types for driving operation need to ensure that the vehicle runs and simultaneously carry out special operation, operators and vehicle drivers are respectively located in different operation spaces, the running and braking of the vehicle are confirmed through intercom design and video monitoring equipment, and if emergency braking cannot be realized due to dead angle of video monitoring and delay of communication efficiency, accidents and equipment damage are easily caused, and even casualties are generated.

As such, conventional vehicle retrofitting achieves emergency braking of the on-board hydraulic system maneuver by adding additional support wheels. Because of the limitation of the transportation scene of the vehicle, the auxiliary emergency brake system for the uploading cannot meet the braking force requirement under the condition of large gradient, so the device has the defect.

In view of the above drawbacks, the present inventors have finally achieved the present utility model through long-time studies and practices.

Disclosure of Invention

In order to solve the technical defects, the technical scheme adopted by the utility model is as follows:

the utility model provides a joint braking device of driving operation class vehicle, includes two-way check valve, driving relay valve, brake master valve, air supply, solenoid valve, two-way check valve's A mouth with the brake master valve is connected, the B mouth with driving relay valve's A mouth is connected, and the C mouth passes through solenoid valve, air supply with driving relay valve B mouth is connected, driving relay valve's C mouth is connected with the service brake air chamber.

Further, the air source is an air cylinder.

Further, the electromagnetic valve is a normally closed electromagnetic valve.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a reliable, convenient-to-assemble and upper-loading safety improvement system. The system overcomes the defect of insufficient braking force in the whole vehicle operation, and ensures the operation safety in the vehicle operation process.

The utility model has strong compatibility, and is not limited by the structure and the upper assembly arrangement, so the novel structure can be applied to various vehicle types and can also meet the modification requirements of various upper assemblies.

Drawings

Fig. 1 shows a joint brake device for a traveling vehicle.

In the figure:

1. two-way check valve, 4, driving relay valve, 5, brake master valve, 3, air source,

2. and 6, a solenoid valve and a service brake air chamber.

Detailed Description

The above and further technical features and advantages of the present utility model are described in more detail below with reference to the accompanying drawings.

In the description of the present specification, the schematic representations of the above terms are not necessarily for the same embodiments or examples in this specification. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples and the features of the different embodiments or examples described in the present specification without contradiction, not limited to the bridge inspection vehicle type, and also applicable to the remaining driving operation vehicle types.

As shown in fig. 1, the schematic diagram of the gas pipeline connection in this embodiment is shown. In this embodiment, an operation emergency brake air pipeline connection mode is provided, a conventional vehicle is braked, an air source is provided through air storage, a brake master valve provides a chassis brake air source signal, a driving relay valve interface C is an air inlet, a driving relay valve interface B is an air outlet, a control brake air chamber is an air outlet, a brake pressure relief is canceled, a control port is a control port, and an air source is introduced to control brake action. Therefore, a two-way check valve is added to the control air path of the traveling relay valve, the port B is connected with a brake master valve, when the brake master valve is connected, the control port of the traveling relay valve is ventilated, the air outlet is ventilated, and the vehicle is braked, so that the braking when the vehicle normally runs is ensured.

The opening C of the two-way check valve is connected with a normally closed electromagnetic valve, after receiving the input of an upper brake signal, the electromagnetic valve is opened, the air path is ventilated, the opening A of the two-way check valve is ventilated, the control opening of the driving relay valve is ventilated, the air outlet is ventilated, and the vehicle brakes, so that the vehicle brakes during driving operation;

the foregoing description of the preferred embodiment of the utility model is merely illustrative of the utility model, and is not intended to be limiting. All parts in the utility model can be changed, and all equivalent changes and improvements performed on the basis of the technical scheme of the utility model are not excluded from the protection scope of the utility model.

Claims

1. The utility model provides a joint braking device of driving operation class vehicle, its characterized in that, including two-way check valve (1), driving relay valve (4), brake master valve (5), air supply (3), solenoid valve (2), service brake chamber (6), the B mouth of two-way check valve (1) with brake master valve (5) are connected, the A mouth with driving relay valve (4) are connected, and the C mouth passes through solenoid valve (2) air supply with air supply (3) with driving relay valve (4) C mouth is connected, driving relay valve (4) B mouth with service brake chamber (6) are connected, driving relay valve (4) D mouth is the gas vent.

2. The service vehicle's combined brake device according to claim 1, characterized in that the air source (3) is an air reservoir.

3. The joint brake device for a traveling work vehicle according to claim 1, wherein the electromagnetic valve (2) is a normally closed electromagnetic valve.