A watertight connection structure and a divided tank connected by a watertight connection structure

The watertight connection structure with welded fastener backings and hook-and-loop fasteners allows for the movement and transportation of large water tanks by connecting sheets and resisting water pressure, addressing the limitations of existing connection methods.

JP2026073879APending Publication Date: 2026-05-01NAT MARINE PLASTIC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
NAT MARINE PLASTIC
Filing Date
2024-10-18
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing water tanks larger than several square meters face difficulties in transportation due to exceeding the allowable size and weight limits of transport vehicles, and existing connection structures do not adequately address the issue of moving and connecting tanks without being limited by the cross-sectional area of the connecting parts or resisting water pressure when filled.

Method used

A watertight connection structure that includes a connection part and a pressure-resistant part, utilizing welded fastener backings and hook-and-loop fasteners to connect sheets, with the fastener backings being twice as long as the fasteners, and a pressure-resistant section with additional components to withstand water pressure.

Benefits of technology

Enables the movement and transportation of water tanks without size limitations and maintains a watertight seal even when filled with water, overcoming the challenges of existing connection methods.

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Abstract

The present invention provides a watertight connection structure that allows for movement between tanks without being limited by the cross-sectional area of ​​the connecting part, enables the transport of the tanks themselves, and allows the tarpaulin to connect against water pressure even when the tanks are filled with water, as well as divided tanks connected by the watertight connection structure. [Solution] In a watertight structure that connects a first sheet and a second sheet to stop water leakage, A connecting part that connects the first sheet and the second sheet, It consists of a connection part and a pressure-resistant part configured to withstand water pressure.
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Description

Technical Field

[0001] The present invention relates to a split water tank connected by a water stop connection structure, and particularly to a split water tank connected by a water stop connection structure that can be disassembled particularly compactly.

Background Art

[0002] There are various water tanks according to the purpose of use, and an assembled water tank is used as a relatively large-shaped water tank. As shown in FIG. 1, for the assembled water tank, a framework 2 is formed on four sides with a lattice-shaped fence-type frame body 4 made of steel materials or the like so as to have a rectangular parallelepiped shape. The rectangular parallelepiped of this framework 2 is covered with a tarpaulin cloth or the like that forms four side walls and a bottom surface as shown in FIG. 2 to form a water tank 6. The upper parts of the four side surfaces are folded back as shown in FIG. 3 to form a tubular part 8, and locking holes 10 are provided in this tubular part 8 at regular intervals with stitches or the like. The locking holes 10 and the fence-type frame body 4 are tied with ropes or wires to fix the cloth or the like to the framework.

[0003] By the way, if the assembled water tank has a size of about several square meters, the length of the steel material that forms the framework is also several meters, and if the tarpaulin is 25 square meters, the weight is also about 12 kg, and there is no difficulty in transportation.

[0004] However, when a water tank larger than these sizes is required, both the steel material that is the framework and the tarpaulin that is the sheet will form a water tank 6 that exceeds several meters. In this case, if the length and weight of the tarpaulin and steel material made of a single material exceed the allowable range of the transport vehicle required for transportation, the difficulty of transportation will be extremely high in both cases.

[0005] Assuming such a case, the applicants have proposed in Patent Document 1 to create a plurality of assembled water tanks and connect the split water tanks to each other. A configuration in which a plurality of water tanks on a cylindrical shape are connected by connection pipes is described.

[0006] Furthermore, Patent Document 2, published by a third party, proposes a heat storage water tank that combines multiple water tanks. This document discloses a configuration in which multiple box-shaped water tanks are connected to each other by openings.

[0007] In addition, the applicant has proposed in Patent Document 3 a connection structure for air ducts composed of multiple cylindrical tarpaulins connected together. Patent Document 3 describes the configuration of connecting parts that are connected to each other and covering parts that shield the connecting parts in order to connect two air ducts.

[0008] A similar structure is also shown in Patent Document 4, which describes a structure that covers a zipper as a canvas cabin for a moving vehicle. [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] Published Utility Model Patent No. 111503 of 1986 [Patent Document 2] Japanese Patent Application Publication No. 11-139493 [Patent Document 3] Japanese Patent Application Publication No. 11-139493 [Patent Document 4] Publicly Published Practical Gazette, Showa 54-178310 [Overview of the project] [Problems that the invention aims to solve]

[0010] As mentioned above, it is difficult to move aquariums exceeding a size of several square meters as a single unit without dividing them. Even if the steel frame and tarpaulin are separated, moving them is extremely difficult if they are large in shape.

[0011] Patent Document 1 describes a configuration in which multiple assembly tanks are connected to each other by connecting pipes 46. In this case, objects larger than the diameter of the connecting pipes 46 cannot pass through the connecting pipes 46 to move between the assembly tanks.

[0012] Patent Document 2 discloses that movement between tanks is possible up to the size of the opening 12, but does not disclose a method for transporting the tanks themselves.

[0013] Furthermore, while Patent Document 3 discloses a method for maintaining the connection of a fastener against air leakage, it does not disclose a method for resisting water pressure.

[0014] Furthermore, while Patent Document 4 discloses a method for preventing mud from scattering onto the fastener, it does not disclose how to make the fastener withstand water pressure.

[0015] In other words, no structure is disclosed that allows for movement between tanks without being limited by the cross-sectional area of ​​the connecting parts, allows for the transport of the tanks themselves, and enables the tarpaulin to connect against water pressure even when the tanks are filled with water.

[0016] Therefore, the object of the present invention is to provide a water-seal connection structure and divided water tanks connected by the water-seal connection structure, which allows for movement between water tanks without being limited by the cross-sectional area of ​​the connecting part, allows for the transport of the water tanks themselves, and enables the tarpaulin to connect against water pressure even when the water tanks are filled with water. [Means for solving the problem]

[0017] The water-stopping structure according to the present invention is a water-stopping structure that connects a first sheet and a second sheet to stop water, A connecting part that connects the first sheet and the second sheet, It consists of a connection part and a pressure-resistant part configured to withstand water pressure.

[0018] The connection part of the water-stopping structure according to the present invention is The first fastener backing is welded inward from the edge of the first sheet, The second fastener backing is welded inward from the edge of the second sheet, It consists of an airtight fastener connecting the end of the first fastener backing and the end of the second fastener backing.

[0019] The pressure-resistant part of the water-stop structure according to the present invention is a first surface fastener base paper welded to the inside of the water tank from the first fastener base paper, a first surface fastener attached to the back of the other end of the first surface fastener base paper, a second surface fastener base paper welded to the inside of the water tank from the second fastener base paper, and a second surface fastener provided on the front side of the other end of the second surface fastener base paper, covering the fastener and the fastener base paper by connecting the first surface fastener and the second surface fastener.

[0020] The water-stop structure according to the present invention is characterized in that the sum of the lengths of the widths of the first fastener base paper and the second fastener base paper is more than twice the sum of the lengths of the widths of the first surface fastener base paper and the second surface fastener base paper.

[0021] The divided water tank provided with the water-stop structure according to the present invention is a water-stop structure for connecting the first sheet and the second sheet to stop water, a connecting part for connecting the first sheet and the second sheet, and a pressure-resistant part configured to resist water pressure.

[0022] The divided water tank provided with the water-stop structure according to the present invention has a connecting part a first fastener base paper welded to the inside of the end of the first sheet, a second fastener base paper welded to the inside of the end of the second sheet, and an airtight fastener for connecting the end of the first fastener base paper and the end of the second fastener base paper, and has the water-stop connection structure according to claim 5.

[0023] The divided water tank provided with the water-stop structure according to the present invention has a pressure-resistant part a first surface fastener base paper welded to the inside of the water tank from the first fastener base paper, a first surface fastener attached to the back of the other end of the first surface fastener base paper, a second surface fastener base paper welded to the inside of the water tank from the second fastener base paper, A second-sided fastener is provided on the other end of the second-sided fastener backing. The waterproof connection structure according to claim 6 is provided, which covers the fastener and the fastener backing by connecting the first-sided fastener and the second-sided fastener. [Effects of the Invention]

[0024] By using the watertight connection structure and the divided water tanks connected by the watertight connection structure according to the present invention, it is possible to move between water tanks without being limited by the cross-sectional area of ​​the connection part, and the water tanks themselves can be transported, and the tarpaulin can be connected against water pressure even when the water tanks are filled with water. [Brief explanation of the drawing]

[0025] [Figure 1] This is a diagram illustrating the skeletal structure of a conventional prefabricated aquarium. [Figure 2] This is a diagram showing the configuration of a conventional aquarium. [Figure 3] This is a side view of a conventional aquarium. [Figure 4] This is a diagram showing the configuration of a divided water tank according to the present invention. [Figure 5] This is a longitudinal cross-sectional view of the watertight connection structure according to the present invention. [Figure 6] This is a front view of the watertight connection structure according to the present invention when it is partially open. [Figure 7] This is a front view of the water-stopping connection structure according to the present invention when water is stopped. [Figure 8A] This is a diagram showing the configuration of the L-shaped divided water tank according to the present invention before joining the components. [Figure 8B] This is a diagram showing the configuration of the L-shaped divided water tanks after they have been joined together according to the present invention. [Figure 9A] This is a diagram showing the configuration of the cross-shaped divided water tank according to the present invention before joining the components. [Figure 9B] This is a diagram showing the configuration of the cross-shaped divided water tanks according to the present invention after they have been joined together. [Figure 10A] This is a diagram showing the configuration of the circular divided water tanks according to the present invention before they are joined together. [Figure 10B] This is a diagram showing the configuration of the circular divided water tanks according to the present invention after they have been joined together. [Figure 11] This is a diagram illustrating the configuration of a watertight connection structure with a modified locking plate structure according to the present invention. [Figure 12] This is a front view of the partially open water-stopping connection structure with a modified locking plate structure according to the present invention. [Figure 13] This is a front view of the watertight connection structure with a modified locking plate structure according to the present invention, when water is stopped. [Modes for carrying out the invention]

[0026] Next, embodiments of the present invention will be described in detail with reference to the drawings. In all drawings described below, the same reference numerals are used for the same components, and their descriptions are omitted as appropriate.

[0027] (Example 1) Embodiment 1 of the present invention is shown in Figure 4, which illustrates the configuration of the divided tank according to the present invention. In Embodiment 1, the tank 12 is composed of a divided tank 14 and a divided tank 16, and the divided tank 14 and the divided tank 16 are connected by a water-stopping connection structure 18.

[0028] The divided water tank 14 has an opening / closing inner wall 20 located inside the water-stopping connection structure 18.

[0029] The opening / closing inner wall 20 is provided connected to the inner walls 22, 26 and the bottom surface 28 of the divided tank 14. The opening / closing inner wall 20 is further composed of three inner walls: an inner wall 30 connected to the inner wall 22 and the bottom surface 28, an inner wall 32 (shown as transparent in the diagram) connected only to the bottom surface 28, and an inner wall 34 connected to the inner wall 26 and the bottom surface 28.

[0030] Inner wall 30 and inner wall 32 are connected by fastener 36, and inner wall 32 and inner wall 34 are connected by fastener 38.

[0031] In other words, by opening fasteners 36 and 38, the divided tank 14 can be changed between a sealed and an open state. When it is in a sealed state, water can be stored in the divided tank 14.

[0032] The divided tank 16 consists of sides 40, 42, 44 (shown as transparent in the diagram) and a bottom 46, and is connected to sides 22, 26 and bottom 28 by a watertight connection structure 18.

[0033] The watertight connection structure 18 will be described with reference to Figures 5 to 7. Figure 5 is a longitudinal cross-sectional view of the watertight state of the watertight connection structure according to the present invention. The watertight connection structure 18 is a structure that connects the main body fabric 22, which is the inner wall 22, and the main body fabric 40, which is the inner wall 40, by sealing off water. The watertight connection structure 18 consists of a connection part that has the function of connecting the inner wall 22 and the inner wall 40, and a pressure-resistant part that resists the water pressure applied to the connection part to which the inner wall 22 and the inner wall 40 are connected.

[0034] The connecting section consists of a first fastener backing 54 which is welded inward from the part of the main fabric 22 that overlaps with the main fabric 40, a fastener 52a provided at the other end of the first fastener backing 54, a second fastener backing 50 which is welded inward from the edge of the main fabric 40, and a fastener 52b provided at the other end of the second fastener backing 50, and the main fabrics 22 and 40 are connected by fasteners 52a and 52b.

[0035] Furthermore, a first-sided fastener backing 60 is welded to the inside of the water tank from the first fastener backing 54, a hook-and-loop fastener 58a is welded to the back of the other end of the first-sided fastener backing 60, a second-sided fastener backing 56 is welded to the inside of the water tank from the second fastener backing 50, and a hook-and-loop fastener 58b is provided on the front side of the other end of the second-sided fastener backing 56, and the fastener and fastener backing are covered by the connection of the hook-and-loop fasteners 58a and 58b. Here, it is preferable that the sum of the widths of the first fastener backing 54 and the second fastener backing 50 is at least twice as long as the sum of the widths of the first fastener backing 60 and the second fastener backing 56. This is because pressure is applied to the pressure-resistant part, causing it to expand.

[0036] The pressure-resistant section consists of a bottom plate 62 positioned on the outside of the main body fabric 22, a packing 64 positioned on the inside of the main body fabric 22, a main body fabric 40 positioned on the inside of the packing 64, and a sheet retaining plate 66 positioned on top of the main body fabric 40. Through holes 68 are opened at regular intervals in the bottom plate 62, main body fabric 22, packing 64, main body fabric 40, and sheet retaining plate 66, and these are fixed in place with bolts.

[0037] Figure 6 shows a partially open state where only the pressure-resistant section is connected and the connection section is open, while Figure 7 shows a completely watertight state where both the pressure-resistant section and the connection section are connected.

[0038] Example 1 shows an example in which rectangular divided tanks are directly connected. The following examples demonstrate that various shapes can be formed by changing the shape of the skeleton and the main fabric. (Example 2)

[0039] An L-shaped tank can be constructed by combining two rectangular divided tanks 72 and 74 shown in Figures 8A and 8B. It is equipped with an inner wall and a watertight connection structure. (Example 3)

[0040] A cross-shaped tank can be constructed by combining the four rectangular divided tanks 76, 78, 80, and 82 shown in Figures 9A and 9B. It is equipped with an inner wall and a watertight connection structure. (Example 4)

[0041] A circular tank can be constructed by combining two semicircular divided tanks 84 and 86 as shown in Figures 10A and 10B. It is equipped with an inner wall and a watertight connection structure. (Example 5)

[0042] A rectangular prism-shaped tank was constructed with dimensions of 2000mm in length, 1500mm in width, and 2000mm in depth, and the fence-like frame was made of single-pipe scaffolding. Rail fasteners and Aquaseal fasteners were used, and the water level was checked at 100, 500, 1000, and 1500 mm, and the condition was checked after 24 hours. It was confirmed that rail fasteners remained functional even after 24 hours. (Example 6)

[0043] An example of a watertight connection structure with a modified locking plate structure will be explained using Figures 11, 12, and 13. In Example 1, the bottom plate 62, packing 64, and sheet retaining plate 66 were plate-shaped. In contrast, by making the bottom plate 90, packing 92, and sheet retaining plate 94 into a U-shape (like the Japanese katakana character), a more watertight structure can be created, thereby improving pressure resistance. Figure 12 shows a front view when partially open, and Figure 13 shows a front view when completely sealed.

Claims

1. In a watertight structure that connects a first sheet and a second sheet to stop water leakage, A connecting part that connects the first sheet and the second sheet, A watertight structure comprising a connection part and a pressure-resistant part configured to withstand water pressure.

2. The connection part is, The first fastener backing is welded inward from the edge of the first sheet, The second fastener backing is welded inward from the edge of the second sheet, The watertight connection structure according to claim 1, comprising an airtight fastener connecting the end of a first fastener backing and the end of a second fastener backing.

3. The pressure-resistant part is, The first fastener backing, which is welded to the inside of the aquarium from the first fastener backing, The first-side zipper is attached to the other end of the first-side zipper backing, The second fastener backing is welded to the inside of the aquarium from the second fastener backing, A second-sided fastener is provided on the other end of the second-sided fastener backing. The watertight connection structure according to claim 2, wherein the fastener and the fastener backing are covered by connecting the first-sided fastener and the second-sided fastener.

4. The watertight connection structure according to claim 3, characterized in that the sum of the width of the first fastener backing and the width of the second fastener backing is at least twice as long as the sum of the width of the first fastener backing and the width of the second fastener backing.

5. In a watertight structure that connects a first sheet and a second sheet to stop water leakage, A connecting part that connects the first sheet and the second sheet, A divided water tank equipped with a watertight structure consisting of a connecting part and a pressure-resistant part configured to withstand water pressure.

6. The connection part is, The first fastener backing is welded inward from the edge of the first sheet, The second fastener backing is welded inward from the edge of the second sheet, A divided water tank comprising a watertight connection structure according to claim 5, the structure comprising an airtight fastener connecting the end of the first fastener base and the end of the second fastener base.

7. The pressure-resistant part is, The first fastener backing, which is welded to the inside of the aquarium from the first fastener backing, The first-side zipper is attached to the other end of the first-side zipper backing, The second fastener backing is welded to the inside of the aquarium from the second fastener backing, A second-sided fastener is provided on the other end of the second-sided fastener backing. A divided water tank having a watertight connection structure according to claim 6, wherein the fastener and the fastener backing are covered by connecting the first-sided fastener and the second-sided fastener.

Citation Information

Patent Citations

  • JP1979178310U

  • JP1986111503U

  • Waterproof construction method of heat accumulating water tank

    JP1999139493A