Faucet improved on basis of ergonomics and provided with airtight and liquid seal threads

Abstract

The invention discloses a faucet improved on the basis of ergonomics and provided with airtight and liquid seal threads. A seal gasket, a faucet body and a water inlet end connecting pipe connected with the faucet body into a whole are included. The water inlet end connecting pipe is provided with the outer threads. The seal gasket is in cup joint to the outer threads of the water inlet end connecting pipe and is in approaching connection with the faucet body. Different from the prior art, the outer threads are divided into the section A and the section B, wherein the section A is close to thefaucet body, the section B is away from the faucet body, the thread screw pitch of the section B is matched with the inner thread screw pitch of a matched-connection water pipe connector, and the screw pitch of the thread in the section A is slightly smaller than the screw pitch of the thread in the section B. The thread screw pitch of the section A is 90%-95% of the thread screw pitch of the section B. The length of the section A is 5-10 mm. In the direction from the connecting position of the section A and the section B to the faucet body, the thread screw pitch of the section A is gradually reduced to be 90%-97% of the thread screw pitch of the section B. The faucet is good in air tightness and liquid seal performance, and the service life is long.

Description

technical field [0001] The invention relates to a faucet, in particular to a faucet with an airtight and liquid-tight screw thread improved based on ergonomics. Background technique [0002] The two tubular parts are connected by threads, because the function of the pipeline is generally to allow gas and liquid to pass through. In order to prevent air leakage and water leakage, that is, to maintain high air tightness and liquid tightness, rubber gaskets are generally placed at the screw connection, and the thread fit is not good. It may be sufficiently air-tight and liquid-tight, otherwise it cannot be connected, because there are tolerances, so only after the two pipes are tightened, the sealing gasket is compressed, and the sealing effect is formed between the sealing gasket and the thread, however as As the aging elasticity of the sealing gasket decreases, the thread fit will loosen, resulting in water leakage and air leakage. Some products even if the sealing gasket is n...

AI Technical Summary

Problems solved by technology

[0002] The two tubular parts are connected by threads, because the function of the pipeline is generally to allow gas and liquid to pass through. In order to prevent air leakage and water leakage, that is, to maintain high air tightness and liquid tightness, rubber gaskets are generally placed at the screw connection, and the thread fit is not good. It may be sufficiently air-tight and liquid-tight, otherwise it cannot be connected, because there are tolerances, so only after the two pipes are tightened, the sealing gasket is compressed, and the sealing effect is formed between the sealing gasket and the thread, however as The aging elasticity of the sealing gasket will decrease, and the thread fit will be loose, resulting in water leakage and air leakage. Some products may leak water and air even if the sealing gasket is not aged.

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