Overpressure-resisting combined gasket

Abstract

The invention relates to the field of a sealing element, in particular to an overpressure-resisting combined gasket. The overpressure-resisting combined gasket comprises a rubber ring and two or more than two hard liner plates which are arranged to surround the rubber ring, wherein each hard liner plate is provided with a bolt connecting hole, and the rubber ring is connected with the hard liner plates. The overpressure-resisting combined gasket comprises the rubber ring and two or more than two hard liner plates surrounding the rubber ring, the hard liner plate is provided with the bolt connecting hole, and the rubber ring is connected with the hard liner plates, so that when the overpressure-resisting combined gasket is in use, the compression amount on a corresponding position of the rubber ring can be controlled by virtue of the hard liner plates, the compression amount on each position of the rubber ring is consistent, the compression amount of the rubber ring also can be strictly controlled by setting the thickness difference of the hard liner plates and the rubber ring. The overpressure-resisting combined gasket not only can be uniform in stress, but also can prevent the excessive compression.

Description

technical field [0001] The invention relates to the field of seals, in particular to an anti-overpressure combined gasket. Background technique [0002] At present, in order to increase the service life of electrical connectors, various manufacturers and research institutions have made a lot of improvements to the materials and structures of the electrical connectors themselves, such as the materials and structures of contacts and insulators. It can be said that in the case of a suitable surrounding environment, the life of the current electrical connector itself can fully meet the demand. However, the researchers overlooked a component that often co-occurs with the receptacle of the electrical connector, namely the square disc rubber pad. As a sealing and isolation element between the socket square plate and the corresponding panel, the square disc rubber pad is often ignored by researchers due to its small size, simple structure and strong versatility. However, it turns ...

AI Technical Summary

Problems solved by technology

[0004] From the assembly method of the square disc rubber pad introduced above, it can be seen that during the process of being compressed, the thickness direction of the square disc rubber pad is under pressure, and there is no limit measure. Four screws and nuts (socket square disc and Panels are usually fixed by four bolts) The amount of screwing compression is only controlled by experience, and it is very easy for the square disc rubber pad to be over-compressed, even flattened, extruded, etc., which makes its tightness and appearance There is no guarantee that after a period of time, once the rubber of the square disk rubber pad fails due to compressive stress, its sealing function will be completely lost; in addition, if the four screws and nuts are inconsistently screwed together, it will inevitably cause socket failure. The relative inclination between the plane of the square plate and the installation panel of the box will cause the seal of the square plate gasket to be over-compressed locally, while the compression on the opposite side is insufficient, which will lead to a decrease in the sealing performance. After long-term use, the over-compressed The problem of compressive stress failure will also occur in the part, resulting in the complete loss of the sealing function of the square disc rubber pad

Images