Blocking device

Abstract

The invention discloses a plugging device. The plugging device comprises: a cylindrical supporting cylinder fixedly connected with a base and provided with an annular through groove; a plugging ring which is made of an elastic material and is arranged in the annular through groove in a radial moving manner; and an actuating mechanism, wherein at least one part of the actuating mechanism is locatedin the supporting cylinder and matched with the inner side of the plugging ring, so that the plugging ring is switched between an expanded state and a retracted state, in the expanded state, the plugging ring protrudes out of the outer circumferential surface of the supporting cylinder, and in the retracted state, the plugging ring does not protrude out of the outer circumferential surface of thesupporting cylinder. According to the technical scheme, the plugging ring made of the elastic material is arranged in the supporting cylinder and has the size change in the radial direction under theaction of the actuating mechanism, so when the plugging device enters the plugging position and leaves the plugging position, the plugging device can conveniently and fast plug a to-be-plugged hole structure, and damage cannot be caused to the to-be-plugged hole structure.

Description

technical field [0001] The present application relates to the mechanical field, and more specifically, relates to a plugging device for plugging a channel. Background technique [0002] Sealing performance is an important factor to measure the quality of many mechanical devices. The quality of the sealing performance directly affects the service life and working efficiency of the overall mechanical device. Therefore, for mechanical devices that require airtightness, the detection of their structural airtightness is essential. In the process of testing the sealing performance of the mechanical device, it is often necessary to block part of the channel structure of the mechanical device itself, so as to avoid the influence of channel leakage on the testing process. For example, when testing the sealing performance of the lubricating oil passage of the engine, it is necessary to block the oil passage opening. [0003] Traditionally, a plugging head made of elastic material is...

AI Technical Summary

Problems solved by technology

However, in the process of use, the plugging and pulling action of this traditional plugging head requires a lot of force, so that the purpose of plugging is achieved through the interference fit between the shape of the plugging head itself and the channel, and the entire body will be damaged every time it is used. The plugging head is deformed, and it will inevitably cause certain damage, resulting in frequent replacement of the plugging head and increasing production costs

Therefore, the traditional blockage scheme is complicated, difficult and easy to cause additional damage

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