A fire-detecting device has first and second stressed brackets plugged together. The far ends of the first and second stressed brackets both have a towing hole. A disintegrable temperature-sensing device is between the first and second stressed brackets. First and second fixing pins are in the first and second brackets, respectively. The first fixing pin is located on one side of a free-moving piece and the second fixing pin is located on the other side thereof. A guide groove is in the first stressed bracket to correspond to the second fixing pin. A guide recess is in the second stressed bracket. A stressed shaft is in the second stressed bracket. An extension part having a stressed groove is in the first stressed bracket. When the disintegrable temperature-sensing device cracks off due to high temperature, the two stressed brackets will separate, leading to the fire dampers' shutting.

Systems and methods for rectifying excessive bottom or head clearances of door assemblies are disclosed. An example system may comprise a door cap straight component installed on a first side of a fire door; a door cap L-shaped component installed on a second opposite side of the fire door; at least one intumescent strip seal fitted with the door cap L-shaped component; and end caps installed on two narrow ends of the fire door.

An elevator door panel including a front plate, a thermal insulation member, a fixing member, and a longitudinal reinforcement plate, wherein four bent parts are formed by bending upper and lower ends and both side ends of the front plate into a U shape toward the back surface, the longitudinal reinforcement plate is connected to the bent parts by two brim parts on the back surface of the front plate while forming a space between the back surface and the longitudinal reinforcement plate, and the thermal insulation member is provided in the space formed between the longitudinal reinforcement plate and the back surface and fixed by the fixing member.

An elevator door panel including a front plate, a thermal insulation member, a fixing member, and a longitudinal reinforcement plate, wherein four bent parts are formed by bending upper and lower ends and both side ends of the front plate into a U shape toward the back surface, the longitudinal reinforcement plate is connected to the bent parts by two brim parts on the back surface of the front plate while forming a space between the back surface and the longitudinal reinforcement plate, and the thermal insulation member is provided in the space formed between the longitudinal reinforcement plate and the back surface and fixed by the fixing member.

A fabric fire rated door is described. The door utilizes a fire resistant fabric curtain with an end lock attachment. A tubular steel shaft is driven by an internal tube motor. The shaft is supported to minimize deflection. Single door shafts can also be joined together with a coupler shaft to create infinitely wide doors. The coupler shaft is spring loaded to act as a take up reel for a coupling curtain which will overlap each adjacent single door shaft. All curtains are attached to the same bottom bar. A hood covers the shaft, curtain, and the supports that run across the width of the door. The curtain travels over these horizontal supports as it drops down through the hood opening. The horizontal supports keep the curtain in position for proper seal during a fire/smoke event.

A fabric fire rated door is described. The door utilizes a fire resistant fabric curtain with an end lock attachment. A tubular steel shaft is driven by an internal tube motor. The shaft is supported to minimize deflection. Single door shafts can also be joined together with a coupler shaft to create infinitely wide doors. The coupler shaft is spring loaded to act as a take up reel for a coupling curtain which will overlap each adjacent single door shaft. All curtains are attached to the same bottom bar. A hood covers the shaft, curtain, and the supports that run across the width of the door. The curtain travels over these horizontal supports as it drops down through the hood opening. The horizontal supports keep the curtain in position for proper seal during a fire/smoke event.

This invention relates to a resin composition comprising a resin component in an amount of 100 parts by weight, thermally expandable graphite in an amount of 3 to 300 parts by weight, and an inorganic filler in an amount of 2 to 200 parts by weight, wherein the expansion starting temperature of the thermally expandable graphite is lower than the decomposition starting temperature of the resin component.

A patch fitting for a fire-retardant glass door is disclosed herein. The patch fitting comprises a support sandwiched between a first layer of fire retardant material on a first side of the support and a second layer of fire retardant material on an opposing second side of the support. The support comprises a first attachment means for attaching to a first pane of glass of the fire-retardant glass door on the first side of the support, and a second attachment means for attaching to a second pane of glass of the first-retardant glass door on the opposing second side of the support. The patch fitting is configured, in use, to be at least partially sandwiched between the two layers of glass of the firm-retardant glass door.

This application provides a fireproof component, a battery pack, and a device using the battery pack as a power supply. The fireproof component includes a main body and a frame. The frame includes a body portion, an extension portion, and an opening defined by an inner peripheral face of the body portion. The extension portion is located circumferentially outside the body portion and connected to the body portion. The extension portion extends along a third direction that is perpendicular to a plane defined by the frame and protrudes beyond the body portion. The main body covers the opening of the frame and is connected to the body portion. The main body and the frame of the fireproof component are parts independent of each other, and therefore, can be made of different materials and in different molding processes.

The present invention relates to a fabric fire door gasket having an adhesive part formed by coating, with flame-retardant silicon, a cloth woven from glass fibers and rolling same in a tube shape, the gasket comprising: a tube body which is inserted into a groove of a fire door frame so as to block the movement of flames between a door and the door frame if a fire breaks out, and which has a joint part formed by rolling, in a tube shape, and adhering a ductile gasket cloth produced by coating, with flame-retardant or incombustible silicon, a fiber cloth manufactured by weaving the glass fibers; and a core body inserted into a hollow portion of the tube body so as to be foamed in a second foaming temperature condition if a fire breaks out, wherein the core body is formed so as to be expanded toward the outer side of the tube body while separating the joint part of the tube body by means of expansion pressure generated by foaming.