JP4362039B2 - Fireproof packing - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fireproof packing that can be attached to a wall.
[0002]
[Prior art]
Such a fireproof packing is an enormous gap-filled fireproof block in the event of a fire, and hermetically closes an annular space formed between a wall and a conduit passing through the wall so that the flame does not pass therethrough. For different conduits, use a set of fire packings of different lengths and inner diameters.
[0003]
German Offenlegungsschrift 198552120 describes a sheet metal which can be wound around a conduit with a simple operation and provided with regularly arranged openings. The end face of the fireproof packing can be attached to the wall by an individual L-shaped wall haken that engages radially inward from the outside. Such a wall harken must have a specific length suitable for each fireproof packing.
[0004]
German Patent No. 4,411,220 describes a fire-proof packing provided with a sheet metal that the user bends and closes around the conduit in the field, and expands along the radially inner surface of this sheet metal Arrange a huge gap fire block like graphite. It can be attached to the wall by individual L-shaped wall halkens that are detachably arranged that can be hooked from the outside in the radial direction on the eyelets formed on the sheet metal of the fireproof packing. Eyelet formation requires special and expensive tools.
[0005]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to obtain a fireproof packing that can be manufactured in large quantities and technically simple.
[0006]
[Means for Solving the Problems]
In order to achieve this object, the fire-proof packing of the present invention is a metal part that is in close contact with the periphery of the conduit and can be closed, and is a metal part provided with a plurality of openings, and a fire-blocking mass with a large gap is arranged on the inner surface. In a fireproof packing comprising a part and at least one individual L-shaped wall harken for mounting on the wall, the wall harken (5) can be fixed to the outer surface of the metal part , for the opening of the metal portion penetrates in the radial direction and formed as having previously fixing means terminating in radially outwardly of said conduit, to the fixing means is the opening and / or the fire mass in It is characterized in that it can be fixed in a self-regulating manner.
[0007]
By fixing the fixing means in a self-regulating manner in the opening and / or the fire block of the metal part, the fixing means of the detachable wall harken can be fixed by simply press-fitting into the opening. Wall harkens can also be applied to different lengths of fireproof packing, increasing flexibility and making a large number of fireproof packings with one tool.
[0008]
When the metal part of the fireproof packing is constituted by a perforated plate or a metal plate having an opening such as an expanded metal, it is advantageous that the opening is already provided with a semi-finished material and the final finishing step can be omitted.
[0009]
If the fixing means has a diameter that is at least partly larger than the original inner diameter of the opening by a zone that can be expanded, for example, a diameter that is larger by 1.0 mm, after the opening has overcome deformation, Due to the elasticity of the plate, the fixing means can be self-regulated (self-holding) by being locked by frictional force.
[0010]
If the fixing means is formed in a bald shape when its end portion protrudes sharply, it is preferable because it can be easily inserted into the opening.
[0011]
When the fixing means is provided in the space of the opening and provided with at least one length region that can be advantageously accommodated without waste in a stable self-regulating position, for example, adjacent to a radially enlarged portion or a wide haken, Even if vibration stress is applied, the fixing of the wall harken to the metal portion is further ensured, which is preferable.
[0012]
If two fixing means arranged at a distance from each other are provided on the wall harken, the fixing of the wall halken to the metal part is stable and suitable.
[0013]
It is preferable that the fixing means is passed through an opening existing in an overlapping region where the ends of the metal portion (4) overlap each other , so that the metal portion can be closed in the circumferential direction by the fixing means.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, preferred embodiments of the present invention will be described with reference to the drawings.
[0015]
As shown in FIG. 1, a fireproof packing 1 having a massive gap-filling fireproof mass 2 distributed radially inward in the circumferential direction is curved around a conduit 3 and has an overlap region X to form a closed loop. The expanded metal part 4 and three L-shaped wall halkens 5 are formed, and the metal part 4 is attached to the wall 6 by screws with these wall halkens 5. The wall harken 5 is fixed to the outer surface of the metal part 4, and at this time, six fixing means 8 are passed through the openings 7 of the metal part 4 in the radial direction and fixed to the openings 7 in a self-regulating manner. 8 is terminated radially outward of the conduit 3. The wall harken 5 disposed in the overlap region X simultaneously connects both ends of the metal portion 4 that closes in the circumferential direction.
[0016]
As shown in FIGS. 2 and 3, the diameter of a part of the nail-like fixing means 8 that protrudes from the wall haken 5 with a sharp end like a barb is U, and is hatched from the original inner diameter I of the opening 7. Only the elastically expanding zone Z shown in FIG. The fixing means 8 has an intermediate length region L adjacent to the enlarging portion 9 in the radial direction, and this length region L is arranged in the space of the opening 7 at the self-regulating position.
[Brief description of the drawings]
FIG. 1 is a perspective view of a fireproof packing according to the present invention.
FIG. 2 is an enlarged perspective view of the wall haken and fixing means of FIG.
FIG. 3 is an enlarged detail view of circle III in FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fireproof packing 2 Space gap fire block 3 Conduit 4 Metal part 5 Wall harken 6 Wall 7 Opening 8 Means 9 Radially large part

Claims (8)

A metal part (4) that is in close contact with the periphery of the conduit (3) and can be closed, and is provided with a plurality of openings (7). Comprising a metal part (4) and at least one individual L-shaped wall harken (5) for attachment to the wall (6), the wall harken (5) being fixed to the outer surface of the metal part in fire protection packing can, the wall Harken (5), said for the opening (7) of the metal part (4), penetrating in the radial direction and fixing means for terminating in radially outwardly of said conduit (3) A fireproof packing, characterized in that it is formed as having (8) in advance , and the fixing means (8) can be fixed in the opening (7) and / or the fireproof mass (2) in a self-regulating manner. The fireproof packing according to claim 1, wherein the metal part (4) is constituted by a metal plate having the opening (7). The fixing means (8) has a diameter at least partially around which a diameter (U) is larger by a zone (Z) that can be expanded than an original inner diameter (I) of the opening (7). Item 3. A fireproof packing according to item 1 or 2. The fireproof packing according to any one of claims 1 to 3, wherein the fixing means has a bald shape when its end portion projects sharply. The fireproof packing according to any one of claims 1 to 4, wherein the fixing means (8) is configured in a nail shape. The fixing means (8) is provided with at least one length region (L) which is disposed in the space of the opening (7) and can be advantageously accommodated in a stable self-regulating position without waste. The fireproof packing according to any one of the above. The fireproof packing according to any one of claims 1 to 6, wherein two fixing means (8) arranged at a distance from each other are provided on the wall harken (5). The fixing means (8) according to any one of claims 1 to 7, wherein the fixing means (8) is passed through the opening (7) existing in the overlap region (X) where the ends of the metal portions (4) overlap. The described fireproof packing.

Images