Gasket sleeve and gasket assembly for a fireproof lock

Abstract

The invention provides a gasket sleeve and a gasket component of a fireproof lockset. The gasket sleeve can be folded along the midline to form an upper gasket surface and a lower gasket surface; theupper gasket surface and the lower gasket surface are symmetrically provided with through holes for assembly; or the gasket component consists of the upper gasket surface and the lower gasket surface;the upper gasket surface and the lower gasket surface are symmetrically provided with the through holes for assembly; and the gasket sleeve or the gasket component is prepared from a resin compositematerial which contains flexible resin, expandable graphite and an additive. The gasket sleeve or the gasket component is good in flexibility, excellent in expansion property and good in shape retention after combustion; moreover, by the environmental protection performance, toxic smoke or flame can be effectively prevented from penetrating through a clearance in the lockset when a fire happens, so the phenomenon of scurrying of fire or intoxication is prevented.

Description

technical field [0001] The invention belongs to the field of locks and related accessories, and in particular relates to a gasket assembly and a gasket sleeve used for the purpose of fire prevention and smoke insulation on the outside of a lock cylinder. Background technique [0002] With the development of the door and window sealing industry and the continuous improvement of people's awareness of fire safety, people's requirements for the sealing and fire resistance of doors and windows are also increasing. For the fire protection of doors and windows, there are many reports on fire sealing strips at present, but there are relatively few reports on the sealing and fire protection of locks. As the saying goes, the embankment of a thousand miles is destroyed by ant nests. Even if fireproof seals are installed on all sides of the doors and windows, if a fire occurs through the gaps in the locks or toxic smoke leaks, the entire fireproof effect will fall short. . [0003] Fo...

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Problems solved by technology

However, the gasket in this document is in the form of a single gasket, and the document does not disclose the composition of the gasket, and does not disclose the flexibility and strength of the gasket before burning, and the shape retention after burning.

[0004] CN106116600A discloses a preparation method of a ceramizable fireproof blocking material. The traditional fireproof blocking material has poor fire resistance and is easy to burn and crack in a fire without effectively preventing the flame and smoke from spreading. Moreover, the blocking material is in use. Due to the aging of the binder and the ambient temperature, it is often solidified. After curing, the volume of the plugging material shrinks and forms gaps, resulting in the problem of imprecise sealing. A method for preparing a ceramizable fireproof plugging material is provided. Expanded graphite is used as a flame retardant, rice husk ash rich in silica and diatomaceous earth are mixed to make a ceramizable paste, supplemented by river sand perlite refractory filler, which is obtained after mixing with silicone resin in a kneader Ceramicable Fireproof Sealing Material

There is also no mention of the degree of expandability, flexibility, and retention of shape after combustion, nor does it mention fire and smoke insulation that can be used for locks.

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