Pressure container

Abstract

The invention relates to a pressure container. The pressure container comprises a barrel with a barrel opening, an upper cover covering the barrel opening of the barrel, and an inner container arranged in the barrel. A water inlet and outlet is formed in the upper cover, a connecting piece is arranged in the water inlet and outlet, an air cavity is formed between the barrel and the inner container, a water inflow and outflow connecting pipe is arranged on the inner container, the connecting piece is connected with the water inflow and outflow connecting pipe of the inner container, the water inflow and outflow connecting pipe is provided with a hollow pipe body and a connecting part protruding and stretching outwards from the pipe body, the connecting part is connected with an opening of the inner container so as to seal the opening of the inner container and provided with two opposite outer lateral sides away from the center line of the pipe body, the thickness of the connecting part is gradually reduced from the portion close to the center line of the pipe body to the outer lateral sides in the vertical direction of the pipe body, due to the fact that the thickness of the connecting part connected with the opening of the inner container so as to seal the opening of the inner container is gradually reduced from the portion close to the center line of the pipe body to the outer lateral sides, connection between the opening of the inner container and the connecting part is more stable, the sealing performance can be improved, and air leakage risks can be reduced.

Description

technical field [0001] The invention relates to a pressure vessel. Background technique [0002] Existing special-made or pressure barrels formed by injection molding process mainly include a barrel body and a barrel cover arranged on the opening of the barrel body. An inner tank is arranged in the barrel body, and the inner tank forms a water cavity. The air chamber is provided with a water inlet and outlet on the bung, a connecting piece is arranged on the water inlet and outlet, and a water pipe connected with the connecting piece is arranged on the inner tank. In the existing pressure tank, the water pipe is connected to the inner tank through the ring part of the hexagonal bolt structure, which causes the inner tank to be easily broken, and after long-term use, the connection between the water pipe and the inner tank is easily separated, resulting in air leakage. Safety problems are prone to occur, and in the assembly process of the water pipe and the inner container, ...

AI Technical Summary

Problems solved by technology

In the existing pressure tank, the water pipe is connected to the inner tank through the ring part of the hexagonal bolt structure, which causes the inner tank to be easily broken, and after long-term use, the connection between the water pipe and the inner tank is easily separated, resulting in air leakage. Safety problems are prone to occur, and during the assembly process of the water pipe and the inner container, the water pipe is connected to the connector through a hexagonal wrench, so that the inner container is prone to rupture

In addition, the original sealing structure is not squeezed inward but compressed, which is prone to slow leakage

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