Seal plug

Abstract

The invention discloses a seal plug, and belongs to the field of design and manufacturing of plugs for technological holes in car bodies. The seal plug comprises a plug body (1), wherein a clamping part is arranged on the plug body (1); the plug body (1) penetrates through a technological hole, and is clamped in the technological hole through the clamping part; a cavity (12) is formed in the interior of the plug body (1); a one-way go-no go piece (2) is arranged in the cavity (12); a go-no go hole (31) used for being matched with the one-way go-no go piece (2) to ensure one-way penetration of a foreign matter is formed in one end of the cavity (12); a communication hole (13) is formed in the other end of the cavity (12). The seal plug is used for preventing such foreign matters as dust, water and an oil liquid from entering a doorsill beam through the technological hole; meanwhile, dust, water, the oil liquid and other foreign matters which enter the doorsill beam through a sheet metal overlap gap can be removed, so as to protect sheet metal from corrosion; the seal plug is particularly suitable for sealing of a technological hole in a body-in-white doorsill beam.

Description

technical field [0001] The invention belongs to the field of sealing plugs, in particular to a sealing plug used for the lower process hole of the door sill beam of an automobile body in white. Background technique [0002] In order to ensure the welding performance of the car body in white, the fluidity of the electrophoretic fluid and the passability of the electric field during the electrophoresis process, it is necessary to open welding holes, electrophoresis drain holes and anti-electromagnetic shielding holes on the body. After the body-in-white is manufactured, in order to prevent foreign matter such as water and oil from intruding into the passenger compartment through the process hole, it is necessary to install a process hole sealing plug to seal the process hole. [0003] At present, in order to prevent foreign matter such as water and oil from intruding into the passenger compartment through the process hole, the process hole of the sill beam of the body-in-white...

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention lies in the problem that the unreasonable structure of the existing sealing block used for the sill beam process hole of the body-in-white leads to the problem that the foreign matter inside the sill cannot be discharged, and the...

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