Plugging mechanism for double-chamber shell steam detection tool

Abstract

The invention relates to the technical field of sealing performance detection equipment, and provides a plugging mechanism for a double-chamber shell steam detection tool, and the plugging mechanism comprises a pedestal, a bottom plugging assembly which is movably disposed on the pedestal; the pressing assembly is arranged above the base; and the side plugging assembly is movably arranged on the base and located on the side of the bottom plugging assembly, and a telescopic rod and two sealing rings arranged in the axis direction of the telescopic rod are arranged on the side plugging assembly. Compared with the prior art, the device has the advantages that the telescopic rod, the fixing sleeve and the pushing block drive the two sealing rings to contract at the same time and abut against the inner wall of the shell through one-time action of the telescopic rod, sealing separation of two communicated cavities in the shell is achieved, and then which cavity in the shell leaks air can be accurately investigated.

Description

technical field [0001] The invention relates to the technical field of airtightness detection equipment, in particular to a plugging mechanism for a double-chamber shell steam inspection tool. Background technique [0002] Housings are often used in various industrial design fields. The shell structure is a space curved structure composed of a space curved plate or an edge member. The thickness of the shell is much smaller than other dimensions of the shell, so the shell structure has good space force transmission performance, and can form a load-bearing structure with high bearing capacity and high rigidity with a small component thickness, and can cover or maintain large-span Space does not need space pillars, which can have the dual functions of load-bearing structure and enclosure structure, thereby saving structural materials. In the automotive industry, the sealing of the housing is the most important parameter of the housing. The quality of the mechanical device dir...

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Problems solved by technology

The thickness of the shell is much smaller than other dimensions of the shell, so the shell structure has good space force transmission performance, and can form a load-bearing structure with high bearing capacity and high rigidity with a small member thickness, and can cover or maintain large-span The space does not require space pillars, and it can play the dual role of the load-bearing structure and the enclosure structure, thereby saving structural materials. In the automotive industry, the sealing of the shell is the most important parameter among the various parameters of the shell. Good or bad directly determines the performance of the mechanical device, so after the factory has completed the size processing of the shell, it is necessary to test the sealing performance of the shell. Most of the traditional leak detection devices can only be adapted to the shell of a single cavity. When there are two chambers inside the shell, most detection devices can only connect the two chambers for detection, and this detection method has an air leak in one of the chambers of the shell When the phenomenon occurs, it is impossible to accurately determine which chamber is faulty, so that it is impossible to correctly determine the correct cause of the leakage of the shell

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