Water-feeding valve of passenger train

Abstract

The invention relates to a water-feeding valve of a passenger train, comprising a valve body, a valve cover, a water inlet and two water outlets. The valve cover is arranged on the valve body and covers the valve body in a sealing mode; the water inlet is arranged at the bottom of the valve body; the water outlets are arranged at the sidewall of the valve body. The water-feeding valve further comprises a water intake valve head, a water return opening, a water return valve head, a valve rod, a limit steel ball and a tension opening spring, wherein the water intake valve head is arranged in the valve body and located at the upper part of the water inlet, and the water return opening is arranged at any side of the valve cover; and the valve rod is installed in the valve body and is a whole rod. The water-feeding valve has the advantages that one valve rod controls a plurality of water outlets to feed water for a plurality of carriages synchronously so that the operation is simple and convenient, , the water-feeding operation is greatly simplified, and the time of the whole water feeding process is shortened. In addition, the water-feeding valve is provided with the water return valve, and when the valve is closed after the water feeding operation is finished, the residual water in the water-feeding pipe fast and automatically returns to a well so as to effectively avoid the phenomenon that a froze water pipe cannot feed water in time in northern region.

Description

Technical field: [0001] The invention relates to a water supply valve, in particular to a water supply valve for railway passenger cars. Background technique: [0002] At present, most of the water supply equipment for passenger cars does not have the function of self-returning water, so that the residual water in the water supply pipes will freeze in winter, making it impossible to supply water for passing passenger cars. Stations in many areas implement long-running water with normally open valves to prevent freezing of water supply pipes in winter, resulting in a great waste of water resources. Because the size of the water supply port of each passenger car is not uniform, it is difficult to connect with the water supply port of the passenger car when using the existing common rubber hose for water supply, often splashing and strenuous, especially in winter, it is more difficult for the water supply hose to freeze hard. It is stipulated that the water supply shall not be...

AI Technical Summary

Problems solved by technology

However, due to the backward function of the water supply equipment itself, the water supply personnel cannot guarantee that the water will not leak during the water supply, so symbolic water supply occurs, resulting in frequent lack of water on the bus, toilets that cannot be flushed, and passengers without water to drink, especially for long-distance buses. for serious

Now the passenger cars are speeding up significantly, and the parking time at each station is shortening. If you want to fill the passenger cars with water in a limited time, the existing old equipment is difficult to meet the requirements of water supply due to the complicated operation and high labor intensity.

The existing old equipment is cast iron, and the rust generated by it is harmful to the human body, and does not meet the requirements of the Ministry of Construction and the Ministry of Health for drinking water equipment.

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