JPS5929041Y2 - Fireproof insulation bolts for cold storage panels - Google Patents

Description

[Detailed description of the invention] This invention is for use in cold insulation panels for attaching and fixing insulation panels to structures such as external walls and ceilings of refrigerated and frozen warehouses that require high-performance heat retention, fire prevention, and fire resistance. This is a fireproof insulation bolt.

Nowadays, many foods are distributed through the refrigeration and freezing process.
Demand for large-scale refrigerated and frozen warehouses is increasing.

However, although the heat retention performance of the cold insulation panels that make up these external walls has been greatly improved, the bolts that attach and fix the cold insulation panels cause heat flow due to the temperature difference between the inside and outside, reducing the refrigeration effect, and condensation condenses on the outside surface of the panels. This has the disadvantage of causing corrosion and deterioration.

The applicant has developed a panel support fixture that is suitable for a fire-resistant structure that prevents the panel body from falling out of the bolts and collapsing to the outside of the refrigerator even in the event of a fire, and this proposal is an improvement on that. It has a simple structure and has been streamlined.

The fireproof insulation bolt of this invention consists of a bolt head for supporting and fixing the panel, an insulator, and legs (spring rods) for fixing it to the structure. Both the bolt head and the leg can be screwed into metal rings of the same shape facing each other with an interval of approximately panel thickness, and a cylindrical heat insulating material is placed between the two metal rings. The holder is used to hold both metal rings so that they do not separate from each other, and the three are held together by a wire or metal rod, but in terms of heat transfer, the bolt head and leg are There is significant heat transfer through the retainer.

In this case, in order to eliminate heat transfer, the holder is not directly connected to the metal ring and the holder, but the holder is locked to the insulating hard washer, and the metal ring bonded to both washers comes into contact with the holder. By providing a thick through hole or a thick notch in the metal ring to prevent the metal ring from becoming damaged, it has both heat insulation and strength.

The details of the embodiment will be explained below with reference to the drawings.
Figure 1 shows the parts of the fireproof insulation bolt according to the present invention arranged in order in a perspective view, and also shows the wire required as a holder to hold each part together, except for the bolt head and legs. do.

Numeral 1 is a bolt with a large cap, which is a component that is to be the bolt head of the fireproof insulation bolt of the present invention, 6 is a cap, and 7 is a male screw.

Reference numeral 2 is a heat insulating hard washer which has an opening 8 in the center into which a stepped portion of a metal ring to be described later is fitted, and a plurality of notches 9 on the outer periphery, which are used for locking wires. Ru.

3 is a metal ring, generally made of steel.

In the center of the ring is a female thread hole 10 for screwing into the male thread 7 of the leg of the bolt head.

On the other hand, the outer periphery has a notch 11 similar to the heat insulating hard washer, but the notch is large in order to avoid contact with the wire that is the holder.

Note that 3a is a stepped portion that fits into the opening 8 of the heat insulating hard washer 2, so that they become one unit and are flush with each other.

4 is a heat insulating material, and the illustration is a phenol resin molded product.
An opening 12 is provided at the center of the upper and lower ends to accommodate a bolt head thread and a leg thread, which will be described later.

Its shape is cylindrical, and its outer diameter is the same as that of the heat insulating hard wiper, the metal ring, and the ring.

Next, a metal ring 3 and a heat insulating hard washer 2 shown in the figure are exactly the same as those described above, and are completely symmetrically opposed to each other with a heat insulating material 4 in between.

5 is a round steel bar with male threads cut into the legs.

Among the parts explained above, the parts other than the bolt head 1 and the legs 5 are brought into close contact with each other in the order shown in the diagram, and are integrated with the wire 13 so that they will not be separated from each other to form a heat insulator. It forms the

FIG. 2 is a longitudinal section showing the state in which the bolt head 1 and the leg 5 are screwed to the heat insulating body 14 integrated with the wire 13, and FIG. FIG.

In FIG. 2, there is a gap between the bolt head cap 6 and the heat insulator, but in reality there should be a gap between the bolt head cap 6 and the heat insulator, but this is left out for convenience to make the structure clear.

In the figure, 13 is a wire, and using the notches 9, the metal rings placed at both ends of the heat insulating material 4 are held between a pair of heat insulating hard washers 2, and the wire 13 is used to prevent them from separating. The tightening is fixed.

In the figure, 15 is a panel mounting angle steel fixed to the building frame, 16 is a washer, 17 is a nut,
18 is a cold insulation panel.

As shown in Fig. 2, the bolt head 1 is screwed into the heat insulator 4 with a metal ring, so that they are in close contact with each other without any gaps, and the legs 5 are screwed into the metal ring in the same way, resulting in a fireproof insulation bolt. , insert the proposed bolt into the through hole of the proposed fireproof insulation bolt that has been previously drilled in the heat insulating panel, and tighten it with the nut 17 via the washer 16 on the leg that protrudes through the bracket. is installed.

Since the wire 13 is not in contact with the metal ring 3, the inside and outside of the heat insulation panel are thermally isolated and the heat insulation panel can be held and fixed securely.

In the event of a fire, the heat-resistant wire 13 is locked to the outer protrusion of the metal ring (remaining part of the large notch 12), so the bolt head will not fall, so the cold insulation panel 18 is held by the bolt head cap and collapses to the outside of the refrigerator. It can stop the spread of fire without falling.

In addition, it is more preferable to coat the outer periphery of the heat insulator 4 with a heat-resistant resin in terms of strength and handling.

FIG. 4 shows a different embodiment in which the heat insulating body 4 is covered with a split hard synthetic resin, and the built-in heat insulating material is phenol foam.

In the figure, reference numeral 19 indicates a pair of cylinders made of hard synthetic resin, and the other structure is the same as that of the embodiment shown in FIG. 2.

It is not necessarily necessary to split the molds in the center, but it is cheaper if they are exactly the same in terms of cost.

As described above, according to the present invention, a cold insulation panel can be used as a fireproof insulation bolt for attaching and fixing a cold insulation panel to a building frame as an outer wall of a cold storage warehouse, etc., and it not only has heat retention properties but also has fireproofness and fire resistance in the event of a fire. It is extremely effective.

[Brief explanation of the drawing]

Figure 1 is a perspective view of each part of the fireproof insulation bolt of the present invention arranged in order (excluding heat resistant wires), Figure 2 is a longitudinal cross-sectional view of a panel attached using the fireproof insulation bolt of the present invention, and Figure 3 is a 2 is a view taken along arrows III to III in FIG. 2; FIG. FIG. 4 is a longitudinal sectional view of a different embodiment. 1...Bolt head, 2...Insulating hard washer 3...Metal ring, 3a...
・Stepped portion, 4...Insulation material, 5...Legs, 6
...Cap, 8...Opening, 9...
...Notch (through hole), 11... Large notch (through hole), 12... Opening, 13...
Holder (fireproof wire), 14...Insulator,
18... Cold insulation panel, 19... Pa/insulation pipe.

Claims (3)

[Scope of utility model registration request] (1) Consisting of a bolt head, a cylindrical heat insulating body 14, and legs 5, the heat insulating body has a female threaded hole in the center and has a plurality of notches or through holes that allow the holder to pass through leaving gaps. A heat insulating hard washer is placed on the end face of both metal rings, the heat insulating material is clamped and fixed via the metal ring with a holder, and the metal ring at both ends is A fireproof insulation bolt for cold insulation panels that has bolt heads and legs screwed together. (2) The fireproofing according to claim 1, wherein the heat insulating material 4 is a phenol resin molded product, the holder is a fire-resistant wire, and the heat insulating material 14 is coated with a heat-resistant resin on the outer periphery. insulation bolt. (3) The fireproof insulation bolt according to claim (1), wherein the heat insulating body is covered with a split hard synthetic resin material, and the built-in heat insulating material is urethane foam.