Anti-rust pipe seat structure and water heater adopting the structure

Abstract

The invention relates to a rust-proof pipe base structure and a water heater adopting the structure, and belongs to the technical field of water heaters. The rust-proof pipe seat structure comprises a rust-proof material liner pipe (5) embedded and fixed at the opening of the cylinder plate (6), and the outer end of the outer tight sleeve of the liner pipe (5) has a pipe seat (2) connected with an internal thread ), the tube seat (2) is covered with a sheath (1) of anti-rust material, the inner end of the sheath (1) has an extension flange, and the liner (5) is inserted with a conduit of anti-rust material (4), the outer port of the conduit (4) has a flared flange, and a C-shaped elastic threaded sealing sleeve (3) with a C-shaped cross-section is clamped on the externally flared flange. The outer circle has protrusions that fit into the grooves of the female thread. At the same time, the present invention makes reasonable and effective improvements to the internal and external structures, so that the problem of rust water extravasation can be effectively solved.

Description

technical field [0001] The invention relates to a rust-proof pipe seat structure, and also relates to a water heater adopting the structure, belonging to the technical field of water heaters. Background technique [0002] The water tank of the water heater is provided with cast iron material pipe sockets forming various pipeline interfaces such as water inlet and outlet. For a long time, the corrosion of the pipe seat of the water heater has always been a problem that cannot be effectively solved. Because the rust of the pipe seat can occur inside and outside, the internal corrosion is caused by the flow of water in the pipe seat, and the outer wall is rusted because the external rainwater, water vapor, etc. will contact it. What is particularly nerve-wracking is that regardless of internal corrosion or external wall corrosion, it is inevitable to leave rust spots on the surface of the water tank where rust water seeps out. [0003] In order to prevent the outer wall of th...

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Problems solved by technology

However, neither the lining nor the enamel layer can extend to the threaded section at the outer end of the inner hole of the pipe seat, so it cannot form an effective comprehensive covering protection, and still cannot prevent the inner rust of the pipe seat and the outflow of rusty water

[0005] In addition, in the prior art mentioned above, when replacing the outer connecting pipe with a shorter thread length, the end face of the outer connecting pipe will not be able to fit the outer end face of the inner liner, so even the original basic sealing state is not difficult to maintain, and it is easier for rusty water to flow out Phenomenon

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