JPH0437487Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a drain screen that can be installed, for example, in the drain hole of a double floor structure of a show case to prevent the drain piping from being clogged with dust and rats from entering. It is something.

[Conventional technology]

Conventionally, a drain screen as shown in FIG. 2 has been used in the drain hole in the floor of the case. This drain screen 1 has an upper opening 3 of a cylindrical screen main body 2 formed in a tap shape.
A flat mounting part 4 is formed by widening the peripheral edge of the support part 4 to the outside, and the mounting part 4 is attached to a support part 6a formed in a drainage hole 6 of a floor 5 of a show case (not shown).

However, this drain screen 1 has a problem in that when a certain amount of dust accumulates, the mesh of the screen becomes clogged and the smoothness of drainage is inhibited.

In order to solve this problem, what is shown in FIG. 3 has been proposed. This drain screen 7 has a screen main body 7a formed in a dome shape, and is configured such that a lower peripheral edge 7b of the screen main body 7a is attached to a support portion 9a formed in a drain hole 9 of the floor 8.

[Problem that the invention attempts to solve]

However, with this configuration of the drain screen 7, dust accumulates around the drain screen 7.
Since there is no accumulation on the top, draining is possible, but the removal of the accumulated dust around it has to be done directly by hand, which is both cumbersome and unhygienic.

In addition, since cooling air passages, etc. are formed at the lower part of the bottom floor of the display shelves, most display cases have a double floor structure, consisting of the bottom floor of the display shelf and the lower floor of the cooling air passages. Generally, drainage holes are formed facing each other in the bottom floor (upper floor) of the display shelf and the lower floor (lower floor) of the cooling air passage.

In this case, since the above-mentioned drain screen is installed separately in each drain hole, the upper floor gets in the way when attaching and detaching the drain screen installed in the drain hole in the lower floor, making it difficult to attach and detach. There was an inconvenience that it was difficult to use.

The present invention was devised in view of the above-mentioned problems, and aims to provide a drain screen that allows good drainage, facilitates the removal of dust, and allows the drain screen for the upper floor and the drain screen for the lower floor to be attached and detached at the same time. This is the purpose.

[Means for solving problems]

In order to achieve the above object, the present invention provides a drain screen that is removably installed in drain holes formed opposite to an upper floor and a lower floor, and a drain screen that is attached to the lower periphery of the screen body formed in a dome shape. A dirt accumulation part having a diameter larger than the lower periphery and curving downward is continuously formed, and the periphery of the dirt accumulation part is bent in the horizontal direction to form an attachment part to the drainage hole mouth edge of the upper floor. , characterized in that a cylindrical screen having approximately the same diameter as the lower periphery is connected to the lower periphery of the screen main body, and an attachment part to the drain hole opening edge of the lower floor is formed at the lower part of the cylindrical screen. It is said that

[Effect]

With this structure, the dust on the upper floor accumulates in the dust accumulation area, and drainage is always good, and when the amount of accumulated dust reaches a certain amount, the drain screen can be removed and the top side facing down. Dust can be removed without using. In addition, it can be attached and detached from the drain holes on the upper and lower floors at the same time.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

The drain screen 10 has a screen main body 10a formed in a dome shape in the center, and a dirt accumulation part 10b having a diameter larger than the lower peripheral edge and curved downward is continuously formed on the lower peripheral edge of the screen main body 10a. The supporting portion 2 of the drainage hole opening edge 21 of the upper floor 20 is formed by bending the peripheral edge of the accumulation portion 10b in the horizontal direction.
A mounting portion 10c for attachment to 1a is formed. Also,
A cylindrical screen 10d having approximately the same diameter as the lower periphery is connected to the lower periphery of the screen body 10a, and a lower floor 2 is provided below the cylindrical screen 10d.
A mounting portion 10e for attaching to the drain hole mouth edge 23 of No. 2 is formed.

With this configuration, the drain screen 10
By having the screen main body 10a, it can be simultaneously and easily attached to and detached from the drainage hole edges 21 and 23 formed facing each other on the upper floor 20 and lower floor 22, and the trouble of attaching and detaching separately is omitted. be done.

The dust on the upper floor 20 is collected in the dust pile 10b.
When the amount of accumulated garbage reaches a certain level, drainage is always good, and the garbage can be removed without using hands by removing the drain screen 10 and turning the top downward.

The drain screen 10 of this embodiment has a mounting portion 1
0c is the support part 21 of the drain hole mouth edge 21 of the upper floor 20
a, attach the mounting part 10e to the drain hole opening edge 2 of the lower floor 22.
3 may be supported at the same time, or either one of the mounting portions may be supported.

[Effect of idea]

As explained above, the present invention continuously forms a dust accumulation section having a diameter larger than the lower circumference and curving downward on the lower periphery of the screen main body formed in a dome shape, and the periphery of the dust accumulation section is It is bent horizontally to form an attachment part to the drainage hole mouth edge of the upper floor, and a cylindrical screen having approximately the same diameter as the lower periphery is connected to the lower periphery of the screen main body, and the cylindrical At the bottom of the screen, we formed an attachment part to the drain hole opening edge of the lower floor, which is formed opposite to the drainage hole of the upper floor. It can be easily attached and detached from the drainage hole at the same time, eliminating the need for separate attachment and detachment.

Furthermore, since the dust on the upper floor is deposited in the dust accumulation section, the drain on the upper floor can be drained well through the screen body. Dust can be easily removed by removing the drain screen from the drain hole and turning it upside down, making it possible to maintain good hygiene inside the show case at all times.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional front view showing an embodiment of the present invention;
2 and 3 are cross-sectional front views of the conventional example. DESCRIPTION OF SYMBOLS 10... Drain screen, 10b... Dust accumulation part, 10c... Attachment part to the drain hole edge 21 of the upper floor 20, 10d... Cylindrical screen, 10e...
...An attachment part to the drain hole mouth edge 23 of the lower floor 22.

Claims (1)

[Scope of utility model registration request] In a drain screen that is removably installed in drainage holes formed opposite to the upper floor and the lower floor, the lower periphery of the screen body formed in a dome shape has a diameter larger than that of the lower periphery and is curved downward. A continuous dust accumulation part is formed, and the peripheral edge of the dust accumulation part is bent horizontally to form an attachment part to the drainage hole mouth edge of the upper floor, and the lower part is attached to the lower peripheral edge of the screen main body. A drain screen characterized in that a cylindrical screen having approximately the same diameter as the periphery is arranged in series, and an attachment portion to the drain hole opening edge of the lower floor is formed at the lower part of the cylindrical screen.