JPS6112388Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an assembly structure of a heat-retaining water tank, and particularly to an assembly structure of a side wall and a bottom wall thereof.

When connecting multiple unit plates, each consisting of a board with flanges on all sides and thermal insulators attached to the outer surface, using bolts and nuts, the flanges of each plate are generally connected to each other with thermal insulation. Since it has not been done, no particular problem arises.

However, the unit plates constituting the bottom wall are often connected by bolting their flanges to the flat lower end portions of the unit plates constituting the side walls. Since it is necessary to remove the thermal insulator around the hole, we cannot ignore the heat loss from the removed area, and also the thermal insulator due to rainwater, dust, etc. infiltrating into the thermal insulator from there. There were problems such as premature aging and a decrease in insulation efficiency.

Attempts have been made to solve these problems by applying caulk to the removed portion of the thermal insulator, or by fitting a cap containing a nut or bolt head into the removed portion. There is a problem in that applying caulking material to all the removed parts of the thermal insulation requires an extremely large number of man-hours, and fitting the cap in place is necessary to ensure that it does not fall off over a long period of time. There was a problem that made it difficult.

This invention provides an assembly structure that advantageously solves the various problems mentioned above.

This invention will be explained below based on illustrated examples.

FIG. 1 is a perspective view showing an embodiment of this invention with parts cut away. In the figure, 1, 2, and 3 indicate the side wall, ceiling wall, and bottom wall of the heat-retaining water tank, respectively.

Each of these walls 1, 2, and 3 is constructed by connecting a plurality of unit plates 1a, 2a, and 3a with bolts and nuts, and
In the illustrated example, the flanges of the unit plates 2a and 3a located at the peripheral edges of the ceiling walls 2 and 3 are connected to the flat portions of the upper or lower ends of the unit plates 1a constituting the side wall 1 by means of bolts and nuts 4 and 5, respectively. By connecting, each wall 1, 2, 3 is assembled firmly.

FIG. 2 is an enlarged sectional view taken along the line - in FIG. 1, and shows an example in which the structure according to this invention is applied to the assembly of a side wall and a bottom wall.

The unit plate 1a constituting the side wall is provided with flanges 6a projecting outward on the four sides of the substrate 6, and the outer surface of the substrate 6 excluding the flanges 6a is lined with a plastic, metal or other plate, or is lined with a foamed material. It is made by adhering a known thermal insulator 7 having a different temperature.

At the flat part of the lower end of this unit plate, the substrate 6
A bolt hole 10 is provided in the unit plate 3a to align with the bolt hole 9 of the flange 8a protruding from the base plate 8 of the unit plate 3a, and a thermal insulator 7 is provided around the bolt hole 10 by the space necessary for tightening the bolt/nut 5. remove.

Each unit plate 1a, 3a is connected by screwing a nut 5b through a washer 11 onto the tip of a bolt 5a inserted into the bolt holes 9, 10 from the flange 8a side, and then tightening the nut 5b. It is carried out at the same time.

Here, also on the outside of this nut 5b, the removed portion of the thermal insulator 7 is preferably made of a thermal insulating material such as synthetic resin, iron, or aluminum alloy, and has a planar shape as a whole, such as a circle, a square, or any other desired shape. At the same time, a cap 13 with a presser flange having a cross-sectional shape similar to that of a hat is arranged.

The holding flange 13a of this cap 13 is located on the edge part of the thermal insulator 7, and this flange 13a
The cap body portion 13b protruding from the cap body portion 3a toward the tip of the bolt 5a is positioned on the bolt 5a by screwing an internal threaded portion provided at the center thereof onto the bolt 5a. In addition, the cap main body 13
When screwing b, it is necessary to make the presser flange 13a tightly fit onto the edge of the thermal insulator 7 so as to sufficiently prevent rainwater, dust, etc. from coming into contact with the surface of the removed portion of the thermal insulator 7. In order to ensure this kind of tightening force, the cap main body 1
It is preferable to provide an uneven portion or the like on the outer surface of 3b.

According to such an assembly structure, after the unit plates 1a and 3a are connected by the bolts and nuts 5,
By simply screwing the cap 13 onto the tip of the bolt 5a, a sufficiently firm and durable sealing structure can be obtained, and the cap itself provides excellent thermal insulation and maintains the function of the thermal insulator 7 over a long period of time. can be maintained.

The case where this invention is applied to the connection between the side wall and the bottom wall has been described above, but it goes without saying that this invention can also be applied to the connection between the side wall and the ceiling wall, and the corner portion of the side wall.

Thus, according to this invention, an air layer is formed between the cap and the substrate, so that satisfactory heat insulation can be maintained. In addition, the seal structure can be obtained simply by screwing the cap onto the tip of the bolt, making sealing work easier.
The sealing function is sufficiently maintained over a long period of time.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing an embodiment of this invention, and FIG. 2 is an enlarged sectional view taken along the line - in FIG. 1. 1...Side wall, 1a, 2a, 3a...unit plate, 2...ceiling wall, 3...bottom wall, 4, 5...bolt/nut, 5a...bolt, 5b...nut,
6, 8... Board, 6a, 8a... Flange, 7...
...Thermal insulator, 9, 10... Bolt hole, 11... Washer, 13... Cap, 13a... Holder flange, 13b... Cap body.

Claims (1)

[Scope of utility model registration request] In a heat-retaining water tank consisting of a plurality of unit plates each having a heat insulator attached to the outer surface of a board having flanges on all sides and interconnected by bolts and nuts, the heat insulator is attached to the area around the bolt hole provided in the board. is removed, and a cap with a retainer flange, also made of a thermal insulator, is placed on the removed portion of the thermal insulator, and the retainer flange is positioned over the edge of the thermal insulator, and a cap is provided in the center thereof. An assembly structure for a heat-retaining water tank, characterized in that a hole is screwed onto the tip of a bolt on the outside of a nut.