JPS6347811Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a device for airtightly connecting the constituent members of a large air conditioner, such as the main body and the fan casing, coil casing, or filter casing.

(Prior Art) When assembling a large air conditioner, in order to connect the cylindrical casings of each section, the outer periphery of each connecting member is surrounded and abutted with an outward flange formed, and the flange is Generally, they are joined together with bolts and nuts at multiple locations.

(Problem to be solved by the invention) Therefore, when using the above conventional means, it is necessary to form a flange around the entire outer surface of a large cylindrical member and to tighten bolts and nuts many times, which requires a lot of labor. This required time and labor costs, and a decline in work efficiency was unavoidable.

(Means for solving the problem) The present invention eliminates the disadvantages of the conventional method, reduces the number of tightening operations using bolts and nuts, increases work efficiency, and provides a robust and airtight connection. A groove metal fitting having a groove with a U-shaped cross section surrounding the entire inner circumference is attached to each connection end of the rectangular cylindrical component of the harmonizer, with the groove positioned on the outside, and both A gasket made of an elastic material is inserted into the U-shaped recessed groove of the groove fitting, and the connecting ends of the component members are butted against each other, and the inward flanges formed at each corner of both groove fittings are tightly connected with bolts and nuts. It consists of

(Function) The rectangular cylindrical structural members 1, 1 targeted in the present invention are large members having at least one open part through which a worker can enter and exit, and have a U-shaped groove fitting 3 attached to the entire circumference of the connecting end. The gasket material 5 in the opposing grooves 4, 4 is clamped by interposing the gasket material 5 in the groove 4, abutting both connecting ends 2, 2, and tightening the inward flanges 6, 6 with bolts and nuts 7. The two components 1, 1 can be joined in a tight and airtight manner, and the tightening work is carried out by a worker inside the components.

(Example) Embodiments of the present invention will be described with reference to the drawings.

In the drawings, reference numerals 1 and 1 designate rectangular cylindrical structural members of an air conditioner to be connected, and the connecting end 2 of each member 1 is provided with a groove fitting 3 that surrounds the entire inner circumference and has a groove 4 having a U-shaped cross section. The constituent members 1 were bonded together with the U-shaped grooves 4 facing outward.

Reference numeral 5 denotes a gasket material made of an elastic material that is inserted across the U-shaped groove 4 of both groove fittings 3, 3, and the gasket material is formed in advance into an annular shape along the entire circumference of the connecting end 2, or It may be of a predetermined length and may be fitted continuously into the groove 4.

Reference numeral 6 designates inward flanges for connecting the structural members 1, 1, which are formed integrally with the groove fitting 3 at each corner of the groove fitting 3.

(Effect of the invention) According to the invention, the rectangular cylindrical structural members to be connected are opposed to each other by groove fittings attached surrounding the inner periphery of the connecting ends, and a gasket is placed between the U-shaped concave grooves of both groove fittings. Since the connection is made with a metal intervening, an extremely accurate airtight connection can be obtained by pressing both groove fittings, and the tightening work is performed by tightening the inward flanges provided at the corners of both groove fittings within the component. This has advantages such as good workability since only a very small number of tightening operations are required.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a perspective view of the connecting ends of both components to be connected, and FIG. 2 is a cutaway side view of the ends of the connected components. 1, 1... Constituent member, 2... Joint end, 3... Groove fitting, 4... U-shaped groove, 5... Gasket material,
6...Inward flange, 7...Bolt nut.

Claims (1)

[Scope of utility model registration request] Rectangular cylindrical component 1 of the air conditioner to be connected,
A groove metal fitting 3 having a groove 4 having a U-shaped cross section and surrounding the entire inner circumference of each of the connecting ends 2 of the component members 1 is attached to the connection end 2 of the component member 1 with the groove 3 positioned on the outside. ,1
A gasket material 5 made of an elastic material is inserted into the U-shaped groove 4 of the groove fitting 3 and abutted against each other, and an inward flange 6 is formed at each corner of both the groove fittings 3. , 6 are tightly connected by bolts and nuts 7.