Pressure monitoring device for air braking system of railway wagon

Abstract

The utility model relates to a pressure monitoring device for an air brake system of a railway wagon, which belongs to the technical field of railway wagons and specifically comprises a detection block arranged between a 120-type valve and a main valve, an installation cover is arranged at the top of the detection block, and a relief air cylinder detection hole, a main pipe detection hole, a brake cylinder detection hole and an auxiliary air cylinder detection hole are arranged on the detection block. A first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove are formed in the top of the detection block and are respectively communicated with the relief air cylinder detection hole, the main pipe detection hole, the brake cylinder detection hole and the auxiliary air cylinder detection hole through air guide channels; and an acceleration relief air cylinder sensor, a main pipe sensor, a brake cylinder sensor and an auxiliary air cylinder sensor are respectively mounted in the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove. The valve operating state detection device is reasonable in structure, convenient to mount and capable of detecting the operating states of 120 and 120-1 valves.

Description

Technical Field

[0001] This utility model relates to a pressure monitoring device for the air braking system of railway freight cars, belonging to the field of railway freight car technology. Background Technology

[0002] With the increase in the load capacity and train formation of freight cars on China's railways, the volume of freight car transport is also increasing year by year. The safe operation of freight cars is of paramount importance in railway transportation. Emergency braking during operation can cause accidents involving freight cars; therefore, monitoring the pressure conditions of freight cars is essential. Currently, railway freight cars typically undergo braking tests at stations to determine the overall leakage situation and the health status of valves 120 and 120-1, thereby identifying any abnormalities in the freight car's air braking system and ensuring safe operation. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model provides a railway freight car air brake system pressure monitoring device with a reasonable structure, convenient installation, and the ability to detect the operating status of valves 120 and 120-1.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is a pressure monitoring device for the air braking system of railway freight cars, including a detection block and a mounting cover. The detection block is installed between a 120-type valve and a main valve. The top of the detection block is equipped with a mounting cover. The detection block is provided with detection holes for the relief air cylinder, main pipe, brake cylinder, and auxiliary air cylinder corresponding to the relief air cylinder, main pipe, brake cylinder, and auxiliary air cylinder on the 120-type valve. The top of the detection block is provided with a first mounting groove, a second mounting groove, a third mounting groove, and a fourth mounting groove. The first mounting groove, the second mounting groove, the third mounting groove, and the fourth mounting groove are respectively connected to the detection holes for the relief air cylinder, main pipe, brake cylinder, and auxiliary air cylinder through air guide channels. The first mounting groove, the second mounting groove, the third mounting groove, and the fourth mounting groove are respectively equipped with an acceleration relief air cylinder sensor, a main pipe sensor, a brake cylinder sensor, and an auxiliary air cylinder sensor. The acceleration relief air cylinder sensor, the main pipe sensor, the brake cylinder sensor, and the auxiliary air cylinder sensor are located inside the mounting cover.

[0005] Preferably, the mounting cover is fixed to the detection block by a plurality of screws.

[0006] Preferably, the mounting cover is provided with a quick-connect cable interface.

[0007] Compared with the prior art, the present invention has the following technical effects: The present invention can detect the health status of valves 120 and 120-1. By installing the detection block between the 120 valve and the main valve, and using the detection hole on the detection block that matches the 120 valve, the air pressure of the relief cylinder, main pipe, brake cylinder, and auxiliary air cylinder can be detected in real time. Thus, the operation status of the air braking system of railway freight cars can be connected in real time, and the detection is convenient and reliable. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model.

[0009] Figure 2 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation

[0010] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0011] like Figure 1 , Figure 2 As shown, the pressure monitoring device for the air braking system of railway freight cars includes a detection block 1 and a mounting cover 2. The detection block 1 is installed between the 120-type valve and the main valve. The mounting cover 2 is installed on the top of the detection block 1 and is fixed to the detection block 1 by multiple screws 16. The detection block 1 is provided with detection holes 3 for the relief air cylinder, 4 for the main pipe, 5 for the brake cylinder, and 6 for the auxiliary air cylinder on the 120-type valve. The top of the detection block 1 is provided with a first mounting groove 7, a second mounting groove 8, a third mounting groove 9, and a fourth mounting groove 10. The first mounting slot 7, the second mounting slot 8, the third mounting slot 9, and the fourth mounting slot 10 are respectively connected to the relief cylinder detection hole 3, the main pipe detection hole 4, the brake cylinder detection hole 5, and the auxiliary cylinder detection hole 6 through the air guide channel 17. The first mounting slot 7, the second mounting slot 8, the third mounting slot 9, and the fourth mounting slot 10 are respectively equipped with the acceleration relief cylinder sensor 11, the main pipe sensor 12, the brake cylinder sensor 13, and the auxiliary cylinder sensor 14. The acceleration relief cylinder sensor 11, the main pipe sensor 12, the brake cylinder sensor 13, and the auxiliary cylinder sensor 14 are located inside the mounting cover 2.

[0012] This invention employs a detection block 1 with detection holes 3 for the relief air cylinder, 4 for the main pipe, 5 for the brake cylinder, and 6 for the auxiliary air cylinder. These holes correspond to the air inlets of the relief air cylinder, main pipe, brake cylinder, and auxiliary air cylinder on the 120-type valve and main valve. Acceleration and relief air cylinder sensors 11, 12 for the main pipe, 13 for the brake cylinder, and 14 for the auxiliary air cylinder are then installed on these detection holes to detect real-time air inlet pressure. This allows for real-time monitoring of the air braking system of railway freight cars. The mounting cover 2 protects the acceleration and relief air cylinder sensors 11, 12 for the main pipe, 13 for the brake cylinder, and 14 for the auxiliary air cylinder, and facilitates the placement of the detection circuit board and cables. The mounting cover 2 also features a quick-connect cable interface 15 for easy wiring.

[0013] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A pressure monitoring device for a railway car air brake system, characterized by: The detection block is installed between the 120 type valve and the main valve, the top of the detection block is provided with a mounting cover, the detection block is provided with relief air cylinder detection holes, main pipe detection holes, brake cylinder detection holes and auxiliary air cylinder detection holes corresponding to the relief air cylinder, the main pipe, the brake cylinder and the auxiliary air cylinder on the 120 type valve, the top of the detection block is provided with a first mounting groove, a second mounting groove, a third mounting groove and a fourth mounting groove, the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove are respectively connected with the relief air cylinder detection holes, the main pipe detection holes, the brake cylinder detection holes and the auxiliary air cylinder detection holes through air guide channels, and the first mounting groove, the second mounting groove, the third mounting groove and the fourth mounting groove are respectively provided with an acceleration relief air cylinder sensor, a main pipe sensor, a brake cylinder sensor and an auxiliary air cylinder sensor, and the acceleration relief air cylinder sensor, the main pipe sensor, the brake cylinder sensor and the auxiliary air cylinder sensor are located in the mounting cover.

2. The railway car air brake system pressure monitoring apparatus of claim 1 wherein: The mounting cover is fixed on the detection block through a plurality of screws.

3. The railway car air brake system pressure monitoring apparatus of claim 1 wherein: The mounting cover is provided with a cable quick interface.

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