JPH0289037U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of a filter case according to the present invention, Fig. 2 is a cross-sectional view taken along the line - in Fig. 1, Fig. 3 is an exploded side view, Figs. 4 and 5. Fig. 6 is a sectional view showing a construction example of forming a hemispherical recess, Fig. 6 is a sectional view showing the state of use, Fig. 7 is a sectional view showing a concrete wall with a drainage channel formed in the wall thickness direction, and Fig. 8 1 is a side view showing a state in which the formwork is assembled by the means shown in FIG. 4, and FIGS. 9 and 10 are sectional views showing conventional examples, respectively. In the figure, A is a concrete wall, B is earth and sand, C is a drainage channel, 1 is a drain pipe, 2 is a filter case, 2a is a water hole, 2b is an insertion leg, 2c and 2c are half pieces, and 3 is a filter. The member 4 is a hemispherical recess.

Amendment 1.3.1 The name of the invention is amended as follows. Title of the invention: Cap for drainage channels in concrete walls The scope of the claim for utility model registration and the brief description of the drawings are amended as follows.

[Scope of Claim for Utility Model Registration] A concrete wall A in which drain pipes 1 forming drain passages C penetrating in the wall thickness direction are provided at required locations.
In the cap used by being attached to the water inflow side opening end of the water drain passage C, the cap is a substantially spherical filter case 2, and the filter case has a part of its outer circumferential surface fitted into the water drain pipe 1. The filter case 2 is provided with fitting insertion legs 2b and a large number of water passage holes 2a penetrating the inside and outside.
A cap for a drain passage in a concrete wall, which is formed from a concrete wall and has a filter member 3 housed and held therein.

[Brief Description of the Drawings] Fig. 1 is a side view showing an embodiment of the filter case according to the present invention, Fig. 2 is a sectional view taken along line - in Fig. 1, Fig. 3 is an exploded side view, Figures 4 and 5 are cross-sectional views showing construction examples for forming hemispherical recesses, Figure 6 is a cross-sectional view showing usage conditions, and Figure 7 is a concrete wall with drainage channels formed in the wall thickness direction. FIG. 8 is a side view showing the formwork assembled by the means shown in FIG. 4, and FIG.
This figure and FIG. 10 are sectional views showing conventional examples. In the figure, A is a concrete wall, B is earth and sand, C is a drainage channel, 1 is a drain pipe, 2 is a filter case, 2a is a water hole, 2b is an insertion leg, 2c and 2c are half pieces, and 3 is a filter. The member 4 is a hemispherical recess.

Claims (1)

[Scope of utility model registration request] Concrete wall A provided with drain pipes 1 at required locations to form drain channels C penetrating in the wall thickness direction
In the cap used by being attached to the opening end on the water inflow side of the water drainage passage C, the cap is attached to the hemispherical recess 4 which is formed in the opening end on the water inflow side of the concrete wall A and spreads out in the shape of a lap. A spherical filter case 2 having approximately the same curvature as a curved surface, the filter case has an insertion leg 2b on a part of its outer circumferential surface that fits into the drain pipe 1, and has a large number of water passages penetrating inside and outside. A hole 2a is formed in the concrete wall, and the filter case 2 is formed of mutually fitting halves 2c, 2c, in which the filter member 3 is accommodated and held. road cap.