JPS6115122Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a connecting structure of fire-resistant heat insulating panels in which a heat insulating core material such as a thermosetting resin foam is filled between a pair of metal surface plates.

Generally, this type of insulation panel is used as an exterior wall material for prefabricated refrigerators, warehouses, etc., and is required to have not only heat insulation properties but also fire resistance and waterproof properties. The core material of fire-resistant insulation panels that form these exterior wall materials is generally made of noncombustible materials, mainly inorganic materials, but in order to obtain good insulation properties, thermosetting phenol foam or urea foam is used It is considered advantageous to form the core material from a foamable resin material such as. However, even if these foamable resin materials are thermosetting, it is known that if they are directly exposed to fire or hot air, they will burn out due to oxidative consumption.

However, the simplest and cheapest structure to manufacture for this type of panel in the past is the Sanderch structure, which is simply a pair of metal face plates filled with an insulating core material, so panels with this structure can simply be combined to form an exterior wall. If this is done, problems will arise in the connections between the panels. In other words, in the event of a fire, fire or hot air will enter the inside of the panel through the joints, and if the core material is made of foamed resin material such as phenol foam or urea foam as mentioned above, it will be destroyed by oxidative consumption. However, the panel loses its function as a fire-resistant insulation panel. Therefore, conventionally, as a countermeasure against this problem, a panel structure has been adopted in which, for example, a metal frame member is provided at the edge of the panel to seal the core material. However, the provision of such a frame material is not preferable because it causes a decrease in heat insulation and also causes dew condensation on the surface of refrigerator-freezers and the like. Furthermore, it is undesirable because it causes an increase in panel cost, and there is currently a need for a means to solve this problem.

This idea was made with the intention of solving the above problem, and it has a simple sanderch structure using phenol foam, urea foam, etc. as the insulating core material, and prevents fires at the joints between inexpensive fire-resistant insulating panels. The present invention aims to provide a connecting structure for fire-resistant heat insulating panels, which is characterized by being able to cope with hot air and the like.

Examples of this invention will be described below based on the drawings.

The drawing shows an example of the connection structure of this invention. In the drawing, 1 and 1 are fire-resistant insulation panels that are connected to each other, and the inner surfaces of a pair of facing metal surface plates 2 and 2 are coated with, for example, silicic acid. Inorganic plates 3, 3 having heat resistance such as calcium plates are pasted, and a heat insulating core material 4, such as phenol foam, is filled between both metal surface plates 2, 2, and the connecting end of these panels 1 Metal surface plate 2, 2 in
Edges 5, 5 are formed to be bent into a substantially U-shape, and a recess 6 is formed in the connecting end surface (see FIG. 2). Reference numeral 7 denotes a connector, and as shown in FIG.
It is made by fixing metal binding materials 9, 9 in the shape of a letter, and when connecting both the fireproof insulation panels 1, 1, a connecting tool 7 is inserted between these two panels 1, 1 from the longitudinal direction. At this time, the locking pieces 9 on both sides of the binding material 9
a and 9a are respectively engaged with the edges 5 and 5 facing the recesses 6 and 6 of the panels 1 and 1, thereby connecting both the panels 1 and 1. 10 is a sealing material such as caulking filled in the connecting joints on both sides.

Note that the refractory material and the heat insulating material are not limited to being laminated as described above, but may be a single core material in which particles of the refractory material are mixed in the heat insulating material in advance.

As explained above, according to the connection structure of this invention, the edges formed by bending the metal surface plates constituting the panels into a substantially U-shape are formed at the connection ends of the fire-resistant insulation panels to be connected. At the same time, a concave portion is formed in the connecting end face, and the connector disposed in the concave portion between these panels is made of an inorganic refractory material having a substantially rectangular cross section and a roughly C-shaped cross section fixed to both sides of this refractory material. When connecting, a connecting tool is inserted into the recess between both panels, and at the same time, both ends of each connecting material are locked to the edge of the same surface side of the adjacent panel. , connects both panels. As a result, construction on site is easy, and both panels can be firmly connected without using fixing devices such as screws. In addition, since both ends of each metal fastener of the connector are locked to the edge of the metal surface plate on the same surface side of the adjacent panel, even if the panel is exposed to high heat in the event of a fire, the The metal face plates of the panels are strongly bonded and can prevent fire from entering. Furthermore, since the inorganic fireproof material of the connector occupies the recess between both panels,
It is also possible to prevent fire damage and spread of fire. On top of that,
Since the panel itself is fire resistant, it can also be used to treat edges other than connecting parts, and even if the sealing material is torn, the binding material can prevent rainwater from entering. The value is outstanding.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of the connecting structure of this invention, Fig. 2 is a sectional view showing the state of the fire-resistant insulation panels before connection in this invention, and Fig. 3 is a perspective view of the connecting device in this invention. be. In the figure, 1... fire-resistant insulation panel, 2...
Metal surface plate, 4...Insulating core material, 5...Edge, 6
... recess, 7 ... connector, 8 ... inorganic fireproof material,
9...Binding material.

Claims (1)

[Scope of utility model registration request] The metal surface plate at the connecting end of a fire-resistant insulation panel made by filling a core material between a pair of metal surface plates is bent into a substantially U-shape to form an edge, and a recess is formed on the connecting end surface. and the connector disposed in the recess between the adjacent fireproof insulation panels is formed by fixing a metal binding material having a substantially C-shaped cross section to both sides of an inorganic refractory material having a substantially rectangular cross section. ,
A connecting structure for fire-resistant heat insulating panels, in which both ends of each binding material of this connector are respectively locked to the edges of the same surface side of both adjacent panels.