CN201475504U

CN201475504U - Fire-retardant ring of plastic pipeline

Info

Publication number: CN201475504U
Application number: CN2009201609505U
Authority: CN
Inventors: 郭新建
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-23
Filing date: 2009-06-23
Publication date: 2010-05-19
Anticipated expiration: 2019-06-23

Abstract

The utility model discloses a fire-retardant ring of a plastic pipeline, relating to fire-proof equipment, comprising a metal shell consisting of side shells, a cover plate and a bottom plate, and an expanding fire-retardant material arranged in the metal shell, and also comprising a fire-retardant ring box arranged in the metal shell, wherein the upper part of the fire-retardant ring box is opened, and the fire-retardant ring box is internally filled with the expanding fire-retardant material. Preferably, the fire-retardant ring also comprises a plastic inner sleeve clung to an inner ring of the fire-retardant ring box; and preferably, the plastic inner sleeve consists of an upper sleeve and a lower sleeve which are respectively and fixedly connected with the cover plate and the bottom plate by rivets. The fire-retardant ring can effectively protect the expanding fire-retardant material, guarantee that the expanding fire-retardant material can normally play a role in a fire and avoid the loss of life and property from expanding further.

Description

A kind of plastic pipe fire stop ring

Technical field

The utility model relates to a kind of fire-proof apparatus, relates in particular to a kind of plastic pipe fire stop ring.

Background technique

Because the superior decay resistance of plastics, widely-used already draining rigid polyvinyl chloride (UPVC) pipe of building replaces original metal tube at present.But UPVC pipe softening burning in very short time in fire, the hole that the UPVC pipe runs through building floor, body of wall makes flame spread to other rooms, floor very soon, brings about great losses.Current home and abroad fire stop ring generally is made up of metal shell and expansible fire trapping material, and the common form of its metal shell is by side housing, and forms with cover plate and base plate that side housing is connected up and down.By being enclosed within UPVC pipe outer wall and floor or partition wall connecting place, when fire took place, expansible fire trapping material expanded by heating pushed softening UPVC pipe, makes it shutoff, thereby stops the intensity of a fire to spread along pipeline.Because fire stop ring uses usually in the moist environment (toilet, lavatory) of religion, hot steam, condensed water make the continuous moisture absorption of expansion flame-retardant material and long-term the erosion, and year causes expansion flame-retardant material efflorescence gradually for a long time, reduces the back-fire relief ability.Therefore, the increase of making a concerted effort is to guarantee that can fire stop ring shutoff within a short period of time run through the pipeline hole in fire to the outer protection measure of fiery material of expanding, the important assurance that effectively stops flame to spread along the hole.

The model utility content

At the problem that above-mentioned prior art exists, the utility model provides a kind of plastic pipe fire stop ring, can protect the expansible fire trapping material effectively, guarantees that it can normally play a role in fire, avoids the further expansion of loss of life and property.

The technical solution of the utility model is: a kind of plastic pipe fire stop ring, comprise the metal shell of forming by side housing, cover plate, base plate, and place expansible fire trapping material in the metal shell, comprise that also one places the fire stop ring box in the metal shell, and fire stop ring box opened upper end is equipped with described expansible fire trapping material in the fire stop ring box.

As preferably, also comprise cover in the plastics of being close to fire stop ring box inner ring, as preferably, cover and is connected and fixed on cover plate and base plate by rivet respectively by last cover with trap and form in the described plastics.

The beneficial effects of the utility model are: provide protection by the fire stop ring box for the expansible fire trapping material, the not influence of heated vapor, condensed water etc. guarantees its normal use in fire.Cover is convenient in the plastics cooperates installation with the UPVC pipe, has more strengthened the protection to the expansible fire trapping material.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation;

Fig. 2 is the sectional view of Fig. 1.

Embodiment

As a kind of mode of execution of the present utility model, as depicted in figs. 1 and 2, a kind of plastic pipe fire stop ring, comprise the metal shell of forming by side housing 1, cover plate 2, base plate 3, and place expansible fire trapping material 4 in the metal shell, comprise that also one places the fire stop ring box 5 in the metal shell, and fire stop ring box 5 opened upper end, described expansible fire trapping material 4 is housed in the fire stop ring box 5, fire stop ring box 5 inner rings also are glued with cover in the plastics, cover is by last cover 61 with trap and 62 form in the plastics, and is connected and fixed on cover plate 2 and base plate 3 by rivet respectively.Pre-buried UPVC pipe outer wall and floor or the partition wall joint of being set in when the utility model uses, when fire takes place, expansible fire trapping material 4 expanded by heating, the UPVC pipe that extruding is softening makes it shutoff, thereby stops the intensity of a fire to spread along pipeline.

Claims

1. plastic pipe fire stop ring, comprise the metal shell of forming by side housing, cover plate, base plate, and place expansible fire trapping material in the metal shell, it is characterized in that: comprise that also one places the fire stop ring box in the metal shell, and fire stop ring box opened upper end is equipped with described expansible fire trapping material in the fire stop ring box.

2. a kind of plastic pipe fire stop ring according to claim 1 is characterized in that: also comprise cover in the plastics of being close to fire stop ring box inner ring.

3. a kind of plastic pipe fire stop ring according to claim 2 is characterized in that: cover and is connected and fixed on cover plate and base plate by rivet respectively by last cover with trap and form in the described plastics.