JPS634076B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a receiving hardware device for a heat insulating material installed on the outside of an expansion joint.

DESCRIPTION OF RELATED ART Conventionally, there is a heat insulating material receiving metal fitting used in an expansion joint for absorbing thermal expansion provided in a communication passage (air duct, flue) for air or fuel gas, as shown in FIGS. 1 to 3.

Figure 1A is a cross-sectional view showing a conventional expansion joint and insulation material receiving metal fitting, and Figure 1A is a cross-sectional view taken along arrow A-A in Figure 1A, and Figure 2A is an overall perspective view of the conventional expansion and contraction joint and heat insulation during toggle motion. An explanatory diagram of the upper and lower surfaces of the metal holder, B is an enlarged explanatory diagram of the K' part of A, C is an enlarged explanatory diagram of the L' part of A, and Figure 3 A and B are conventional expansion and contraction joints during toggle motion. and an explanatory view of the side surface of the heat insulating material receiving metal fitting.

In these figures, 1' is an expansion joint, 2' is a connection flange, 3' is a heat insulator receiving metal fitting, 4' is a part that twists during toggle motion, 9' is a heat insulating metal support metal fitting, and 10' is a heat insulating metal fitting. 11' indicates an exterior plate.

Conventionally, each heat insulating material receiving metal fitting 3' is attached to its associated connection flange 2' by welding, so that during toggle motion, as shown in FIGS. 2 and 3, the heat insulating material receiving metal fitting 3' cannot keep up with the movement of the expansion joint 1', and as a result, as shown by the arrow 4', cold air leaks through the gap in the part where the heat insulating material receiver 3' has peeled off and twisted, as shown by the arrow. The expansion joint 1' is subjected to low temperature corrosion.

Therefore, the following conditions are required for the heat insulating material receiving hardware. 1) Those that completely insulate the expansion joints, 2) Those that do not restrict the expansion joints, 3) Those that do not accelerate the corrosion of the expansion joints, and 4) Those that can support a certain amount of weight (thermal insulation materials, people, etc.) 5) A structure that does not increase the height and width of the insulation material.

When conventional insulation material receiving hardware is evaluated from this perspective, it is found that air leaks heavily, the temperature decreases and accelerates corrosion of the expansion joint, and especially during toggle motion, air leaks. There are significant drawbacks.

The present invention was made for the purpose of preventing such atmospheric leakage and preventing low-temperature corrosion of expansion joints.

The present invention provides a receiving device for a heat insulating material installed on the outside of an expansion joint, in which one end of a first heat insulating material receiving metal fitting is welded to one connecting flange of the expansion joint, and a second heat insulating material is attached to the connecting flange of the expansion joint. Connecting one end of the receiving metal fitting with a pin to the other connection flange of the expansion joint, and connecting the other end of the first insulation material receiving metal piece with one end of the third thermal insulation receiving metal piece,
The other end of the second insulation material receiving metal piece is connected to the other end of the third insulation material receiving metal piece with a pin, and insulation material is installed on the outside of these three insulation material receiving metal pieces, thereby allowing the insulation material receiving metal piece to expand and contract. The expansion and contraction joint is made to move freely according to the expansion and contraction of the joint, so that the expansion and contraction joint is not restricted.

Therefore, according to the present invention, the heat insulating material receiver can move freely in accordance with the expansion and contraction of the expansion joint, which prevents the leakage of air during toggle motion, which has been a particular problem, and prevents low-temperature corrosion of the expansion joint. can be prevented.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 4 and 5.

FIG. 4A is a sectional view showing one embodiment of the present invention, and FIG. 4B is an explanatory sectional view taken along the line BB,
C, D, and Ho are plan views, left side views, and right side views of a portion of A. FIG. , that is, an explanatory diagram for the case of toggle motion, B is a detailed explanatory diagram of the K section on the upper and lower surfaces of A, C is a detailed explanatory diagram of the L section on the upper and lower surfaces of A, and D is a detailed explanatory diagram of the L section of A.
Detailed explanatory view of the M part in the arrow view, and E shows an explanatory view in the H--H arrow view of D.

In these figures, 1 is an expansion joint, 2 is a pair of connecting flanges, and 3 is a first heat insulating material receiver whose one end is welded to one of the connecting flanges 2. Further, a rib 4 is attached to the other connecting flange 2 as shown in section C, and one end of the second heat insulating material receiving metal fitting 5 is connected to this rib with a pin 6. Furthermore, the fourth
As shown in parts D and E of Figure A, lugs 7 and 8 are attached to each end of these heat insulating material receiving metal fittings 3 and 5, respectively.
are connected by pins 6, and both ends of a third heat insulating material receiving metal fitting 9 are connected to these lugs by pins 6. A heat insulating material 10 and an exterior plate 11 are attached to the outside of these three heat insulating material receiving metal fittings 3, 5, and 9. The heat insulating material 10 and the exterior plate 11 are integrated.
As shown in section F, the exterior plate 11 has a structure with gaps in consideration of expansion and contraction.

In addition, there are approximately 500 insulation material receiving hardware around the entire circumference of the expansion joint.
Mounted with mm pitch.

Next, its effect will be explained.

The movement of the expansion joint and insulation material receiving hardware is δ up and down.
FIG. 5 shows a case in which the joint is moved by a certain amount, that is, in a toggle motion, but the case of a normal telescopic joint will also be explained below.

1 About the K section on the upper and lower surfaces The expansion joint 1 tilts and extends. Since the first heat insulating material receiving metal fitting 3 is welded to one of the connecting flange 2, it is inclined in the same direction as this flange 2. Expandable joint 1 and flange 2, first heat insulating material receiving metal fitting 3
The inclination of can be ensured by the pin 6 that connects the second heat insulating material receiving metal fitting 5 and the rib 4. Also,
Sufficient elongation can be ensured by the second and third heat insulating material receiving metal fittings 5 and 9, the lugs 7 and 8 attached to these, and the pin 6.

2 Regarding the L portion of the upper and lower surfaces The telescopic joint 1 tilts and contracts. Since the first heat insulating material receiving metal fitting 3 is welded to one of the connecting flange 2, it is inclined in the same direction as this flange 2. This inclination can be sufficiently ensured by the pin 6 that connects the second heat insulating material receiving metal fitting 5 and the rib 4, as in 1) above. Further, shrinkage can be sufficiently prevented by the lugs 7 and 8 and the pin 6 attached to the second and third heat insulating material receiving metal fittings 5 and 9.

3 Regarding the M section on the side surface In addition to the movements described in 1) and 2) above, the telescopic joint 1 also moves in the horizontal direction. To ensure this,
First and second heat insulating material receivers 3, 5 and lugs 7, 8
are supported by pin 6 so that they can move freely.

In addition, the heat insulating material 10 includes heat insulating material receiving hardware 3, 5, 9
Since the exterior plate 11 has a structure with gaps as shown in section F in FIG. 4, it can sufficiently absorb expansion and contraction.

The present invention has the above-mentioned structure, and by making the heat insulating material receiving hardware into a link structure, it is possible to easily integrate the heat insulating material and the exterior plate, which eliminates the intrusion of air and rainwater, which has been a problem in the past, and expands and contracts. This has the effect of preventing low-temperature corrosion of the joint.

[Brief explanation of the drawing]

Figure 1A is a cross-sectional view showing a conventional expansion joint and insulation material receiving metal fitting, and Figure 1A is a cross-sectional view taken along arrow A-A in Figure 1A, and Figure 2A is an overall perspective view of the conventional expansion and contraction joint and heat insulation during toggle motion. An explanatory diagram of the upper and lower surfaces of the metal holder, B is an enlarged explanatory diagram of the K' part of A, C is an enlarged explanatory diagram of the L' part of A, and Figure 3 A and B are conventional expansion and contraction joints during toggle motion. and an explanatory diagram of the side of the heat insulation material receiving hardware,
FIG. 4A is a sectional view showing one embodiment of the present invention, and FIG. 4B is an explanatory sectional view taken along the line BB,
C, D, and Ho are plan views, left side views, and right side views of a portion of A. FIG. , that is, an explanatory diagram for the case of toggle motion, B is a detailed explanatory diagram of the K section on the upper and lower surfaces of A, C is a detailed explanatory diagram of the L section on the upper and lower surfaces of A, and D is a detailed explanatory diagram of the L section of A.
Detailed explanatory view of the M part in the arrow view, and E shows an explanatory view in the H--H arrow view of D. 1... Expansion joint, 2... Connection flange, 3,
5, 9... Heat insulation material receiving hardware, 4... Rib, 6...
Pin, 7, 8...Lug, 10...Insulating material, 11...
...Exterior board.

Claims (1)

[Claims] 1. In a receiving device for a heat insulating material installed on the outside of an expansion joint, one end of the first heat insulating material receiving metal is welded to one connection flange of the expansion joint, and the second heat insulating material receiving metal One end is connected with a pin to the other connection flange of the expansion joint, and the other end of the first insulation receiving metal fitting is connected with a pin to one end of a third insulation receiving metal fitting, and the other end of the second insulation receiving metal fitting is connected with a pin. A heat insulating material receiving hardware device for an expansion joint, characterized in that one end is connected to the other end of a third heat insulating material receiving hardware with a pin, and a heat insulating material is constructed on the outside of these three heat insulating material receiving hardware.