Concrete distributing valve and concrete pumping mechanism

Abstract

The invention discloses a concrete distribution valve, comprising a valve body and a valve core which is arranged in the valve body. The valve body is provided with a material outlet, a first material suction port and a second material suction port. The valve core is provided with a side opening and a material inlet which is communicated with a concrete material hopper. The valve core can rotate for a certain angle correspondingly to the valve body. When the valve core rotates to a left limit position correspondingly to the valve body, the side opening is communicated with the first material suction port. When the valve core rotates to a right limit position correspondingly to the valve body, the side opening is communicated with the second material suction port. A passage which is communicated with the first material suction port, the second material suction port and the material outlet is arranged between the valve core and the valve body. The invention provides a concrete distribution valve and a concrete pumping mechanism, which has good material suction performance and can meet the pumping requirement.

Description

technical field [0001] The invention relates to a concrete distribution valve and a concrete pumping mechanism, in particular to a concrete distribution valve used for a concrete delivery pump and a concrete pumping mechanism using the concrete distribution valve. Background technique [0002] At present, in the domestic and foreign markets, there are two main types of concrete distribution valves: gate valve and S valve. [0003] The spools of the existing distributing valves (S valve, skirt valve and C valve) are all located outside the valve body. The gate valve is through the up and down movement of the two gates in the distribution valve, so that the delivery cylinder is connected or disconnected sequentially through the distribution valve, the feed port of the hopper and the discharge port of the Y-shaped pipe, so as to realize the suction of concrete. and pumping process. The advantage of the gate valve is that the suction port is located at the bottom of the hoppe...

AI Technical Summary

Problems solved by technology

The advantage of the S valve is that the high pressure of the system mainly acts on the inner wall of the circular pipe. When working, the entire pipe wall is evenly tensioned and can withstand a large pressure. The working pressure can reach 16MPa or even greater. However, due to the S pipe of the S valve In the hopper, it occupies a certain volume of the hopper, and it will affect the suction of the delivery cylinder

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