Device for opening and closing cover for prefabricated water tank

Abstract

The present invention proposes an opening and closing device implemented on a panel and a cover to open and close an opening of a panel in a prefabricated water tank formed by combining a plurality of panels. This opening and closing device (30) includes a ball portion (32) supported by an extension portion (34) extending outward from one side of the cover, and a ball-shaped groove (14) formed on one side of the panel to accommodate a portion of the ball portion. The ball cover (36) supports the ball so that it can substantially rotate inside it by covering and supporting the upper part of the ball portion accommodated in the ball-shaped groove. Furthermore, the extension portion of the present invention can perform a tilting motion that opens upward around the ball portion without interference with the ball cover.

Description

Technology Field

[0001] The present invention relates to a cover opening and closing device for a prefabricated water tank, and more specifically, to an opening and closing device for efficiently opening and closing the cover of a water tank installed for internal cleaning, etc., relative to the surrounding environment. Background Technology

[0002] Recent water tanks are manufactured by assembling multiple injection-molded panels in the vertical and horizontal directions. In this case, packing members are interposed between the multiple panels to ensure watertightness. Korean Patent 10-2251553 can be cited as a prior patent regarding such prefabricated water tanks and packing members. The multiple packing members for constituting the water tank have a single central plane for forming a wall surface and four sides that are bent approximately vertically from the four sides of this central plane.

[0003] In water tanks made of multiple injection-molded panels, it is common practice to install openable covers (doors) on some of the panels for cleaning the inside of the tank. Recently, there has been a trend to install such water tanks underground, where the covers are configured to open and close in the vertical direction around a hinge axis. Therefore, sufficient space must be secured on the upper surface of the water tank to allow for the complete opening and closing of the covers. The problem to be solved

[0004] The objective of the present invention is to propose an opening and closing device for a prefabricated water tank in which the cover for internal access in the prefabricated water tank can be opened not only by tilting in the up-and-down direction but also by turning in the horizontal direction, thereby minimizing spatial constraints. means of solving the problem

[0005] The device of the present invention is an opening and closing device implemented on a panel and a cover to open and close an access opening of a panel in a prefabricated water tank formed by combining a plurality of panels. This opening and closing device includes a ball portion supported by an extension extending outward from one side of the cover, and a ball-shaped groove formed on one side of the panel to accommodate a portion of the ball portion. The ball cover supports the ball so that it can substantially rotate inside by covering and supporting the upper part of the ball portion accommodated in the ball-shaped groove. Furthermore, the extension of the present invention allows for tilting that opens upward around the ball portion without interference with the ball cover.

[0006] According to another embodiment of the present invention, the cover is spaced apart from the panel at a certain distance, and the extension can be operated to rotate in a horizontal direction while in an inclined state. Effects of the invention

[0007] According to the present invention having the configuration described above, the configuration related to the hinge pin and hinge ball can be omitted among the mechanical configurations for opening the cover by rotating it, thereby providing the advantage of ultimately providing an opening and closing device with a minimized number of parts. Furthermore, if the ball cover and the extension part are designed so that no interference occurs, it is possible to operate the cover so that it can actually rotate horizontally through the extension part. Therefore, various advantages such as the minimization of the number of parts, the simplification of production and assembly processes, and the diversification of operations can be expected. Brief explanation of the drawing

[0008] FIG. 1 is a perspective view showing the opening and closing device of the present invention with the cover closed. FIG. 2 is a perspective view showing the opening and closing device of the present invention with the cover open. FIG. 3 is a longitudinal cross-sectional view of the opening and closing device of the present invention. Specific details for implementing the invention

[0009] Next, we will examine the present invention in more detail based on the embodiments illustrated in the drawings.

[0010] As illustrated in FIGS. 1 and 2, among the plurality of panels for constructing a prefabricated water tank, some panels (10) have an access opening (12) for entry and exit, and a cover (20) is installed to open and close the access opening (12). The cover (30) is opened and closed by the opening and closing device (30) of the present invention, and basically, the cover (20) is capable of a tilting operation that opens upward relative to the reference panel (10).

[0011] And when the connection with the panel (10) is released, the cover (20) is supported to enable a turning motion that rotates in the horizontal direction. That is, when the state of being connected to the cover (20) is released (for example, when it is opened only slightly), the cover (20) can rotate in the horizontal direction in this state. Therefore, according to the present invention, by means of the opening / closing device (30), a tilting motion in which the cover (20) opens only upward and a turning motion in which the cover (20) opens by rotation in the horizontal direction are made possible.

[0012] The opening and closing device (30) that performs such operations will be examined in detail with reference to FIG. 3. The opening and closing device (30) includes a ball portion (32) formed on the outside through an extension portion (34) on one side of the cover (20). This ball portion (32) acts substantially as a ball joint or universal joint on one side of the panel (10). The ball portion (32) is supported by a ball-shaped groove (14) (e.g., a hemispherical groove) formed on one side of the panel (10) and a ball cover (36) that is fastened to the upper part of the ball-shaped groove (14) and covers the upper part of the ball portion (32).

[0013] Accordingly, the ball portion (32) is rotatably supported inside by the ball-shaped groove (14) and the ball cover (36), which allows the ball portion (32) to rotate and turn in any direction. In the illustrated embodiment, it can be seen that the ball cover (36) is composed of a pair installed on both the left and right sides. With this configuration, the extension (34) of the ball portion can be lifted upward and opened through the gap between the pair of ball covers (36).

[0014] Here, since tilting or turning of the cover (20) is possible within a range where there is no interference between the extension part (34) connecting the ball part (32) and the ball cover (36) covering the ball part (32), the shape design of the ball cover (36) and the extension part (34) will be meaningful as needed. Therefore, it is important to design the ball cover (36) of the present invention so that there is no interference with the extension part (34) and that the extension part (34) and the cover (20) can move in various directions.

[0015] For example, the extension (34) may be able to rotate (orbit) 360 degrees in all directions while maintaining a certain angle without interfering with the cover (20) while open in a certain interval panel. This operation means that the through hole (12) can be opened by rotating horizontally while the cover (20) is substantially open.

[0016] By using such a configuration, the hinge shaft component, which is conventionally required to open the cover, becomes unnecessary, thereby simplifying the parts and eliminating the machining process of drilling to insert the hinge shaft. This can be seen as an advantage that can practically achieve a reduction in the number of parts and a simplification of the assembly process.

[0017] As described above, the opening and closing device according to the present invention can be said to possess substantially sufficient functionality while having significant advantages in terms of the number of parts and the assembly process. Within this technical scope, other modifications are possible for a person skilled in the art, and given the intent of the provisions of the Patent Act, it is self-evident that the scope of protection of the present invention should be interpreted based on the description in the patent claims. Explanation of the symbols

[0018] 10 ..... panel 12 ..... through ball 14 ..... Ball-shaped home 20 ..... cover 30 ..... switching device 32 ..... cheek part 34 ..... extension part 36 ..... Ball cover

Claims

Claim 1 A cover opening and closing device for a prefabricated water tank formed by combining a plurality of panels, wherein the opening and closing device is implemented on the panel and the cover to open and close the opening of the panel; a ball portion supported by an extension extending outward from one side of the cover; a ball-shaped groove formed on one side of the panel to accommodate a portion of the ball portion; and a ball cover that covers and supports the upper part of the ball portion accommodated in the ball-shaped groove and supports the ball so that it can rotate inside; wherein the extension can perform tilting that opens upward around the ball portion without interference with the ball cover, and the cover can rotate in a horizontal direction while the extension is in an inclined state with the cover spaced apart from the panel at a certain distance. Claim 2 delete

Images