JP3438799B2 - Wall inspection port water stop structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water stop structure for a wall inspection port for waterproofly closing an inspection port provided in a wall such as a bathroom wall which is exposed to water.

[0002]

2. Description of the Related Art A conventional wall inspection port water-stopping structure having a waterproof lid for waterproofly closing an inspection port provided on a wall such as a bathroom wall which is exposed to water is designed to have a smooth lid mounting surface around the inspection port. A structure that prevents water leakage from the gap by forming a seal member by abutting and fixing the cover member to this smooth portion via a packing, and by filling the peripheral portion of the cover member with a sealing member such as silicone resin. I was trying.

[0003]

However, when the inspection port is formed on the tile wall or the like, the unevenness of the joint may cause water leakage from the lid mounting surface. It is necessary to attach the packing closely to the lid mounting surface with a number of fixing screws, or to mount a frame member with a smooth lid mounting surface.
In the construction stage, the waterproof lid having the double structure of the back lid and the front lid may have an incomplete waterproofing process due to an error in attaching the back lid and the front lid based on complicated construction specifications.

An object of the present invention is to prevent water leakage from the lid mounting surface even when the mounting surface of the waterproof lid is uneven, and to prevent errors in the work at the construction site when mounting the waterproof lid. In addition, it is to obtain a wall inspection port water stop structure with a simple structure.

[0005]

In order to solve the above-mentioned problems, firstly, a detachable waterproof cover for closing an inspection port opening on a wall surface and an interposing between the waterproof cover and the mounting surface on the wall side. In a wall inspection port waterproof structure having a packing to be provided, the waterproof lid has a bending portion imparted with bending rigidity capable of holding the packing by bending a portion facing the mounting surface ,
Along the peripheral edge of the waterproof lid and the inner side of the set screw.
The bent portion is formed so as to bend.
And are characterized.

[0006] In the waterproof lid of the wall inspection port waterproof structure, since the mounting surface has a bent portion having bending rigidity capable of holding the packing, the packing pressed by the bent portion has a water blocking action, Therefore, in the wall inspection port waterproof structure of the present invention, the inspection port can be waterproofly closed by the simple waterproof cover even if the wall-side mounting surface has irregularities.

Secondly, the waterproof lid has a double structure consisting of a back cover for closing the inspection port and a front cover for covering the front side of the back cover. The back cover is attached to and detached from the inspection port by the back cover fixing screw. It is freely attached and the front cover is fixed by the front cover set screw that is screwed onto the head of the back cover set screw.

[0008] The back cover set screw of the wall inspection port water stop structure is
Since the head portion is provided with the screwing portion for fixing the front cover fixing screw, the front cover fixing screw is assembled so as to be screwed through the back cover fixing screw at the time of assembling. Therefore, the wall inspection port water blocking structure can be installed without error without referring to the assembly instruction or the work instruction, and the waterproof lid installation work according to the specifications can be secured.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan view of the wall inspection port water blocking structure of the present invention due to partial breakage.
Is a double-layered waterproof structure including an inspection port 3 that opens to an uneven wall surface 2a such as a bathroom wall or a bathtub apron, a waterproof back cover 4 for closing the inspection port 3, and a cosmetic front cover 5. It consists of a lid and its accessories.

More specifically, the back cover 4 is integrally provided with a water blocking packing 6 on the side facing the wall 2 to be mounted, and the wall 2
Are formed in the screw holes 7 and the back cover 4 is detachably fixed by the back cover set screws 8 screwed into the screw holes 7. The back cover setscrew 8 ... Has a threaded hole 10 for screwing as well as a slot 9 for rotation on its head. Further, the front cover 5 is provided with a front cover packing 11 on its peripheral portion, and is detachably fixed by a front cover fixing screw 12 ... Which is screwed onto the head of the back cover fixing screw 8, and a screw cap is attached to the head. Insert 13 ...

FIG. 2 is a sectional view taken along line AA of FIG.
Fixing plate 22 having screw holes 7 formed on the back side or inside thereof
Is attached in advance to form the fixed side. Tile finish wall 2
The back cover set screw 8 with which the back cover 4 having the packing 6 is screwed into the screw hole 21 on the mounting surface 2a forming the uneven surface of
Then, the front cover 5 is overlapped and fixed on the upper side by the front cover fixing screw 12 screwed to the back cover fixing screw 8. The back cover 4 is a plate member made of a strong rust-proof material such as a stainless steel plate, and the front cover 5 is a plate member made of a decorative material such as synthetic resin.

The back cover 4 has bent portions 23 and 24 formed on its peripheral edge and on the inner peripheral side of the set screw. Similarly, the front cover 5 is bent on the peripheral edge and in the inner peripheral side of the set screw. Part 2
5 and 26 are formed, and the bent portions thereof are bent along the peripheral edge to ensure bending rigidity in the direction along the peripheral edge.

FIG. 3 is a cross-sectional view showing the main part of the wall inspection port water blocking structure of FIG. 1, and the bent portion 23 on the outer peripheral side of the back cover 4 is the wall 2.
The side has an inclined shape having a constant displacement amount A, and the bending rigidity due to the width B and the plate thickness of the inclining bent portion 23 is at the bottom of the concave portion 31 having a constant depth C on the mounting side of the wall 2. Sufficient to press the packing 6.

The back cover set screw 8 is provided with a screw hole 10 in the large-diameter step portion 32 from the head portion 8a side, and the hole 4 of the back cover 4 is provided.
a, through the hole 2b of the wall 2 and screwed into the screw 7, press the back cover 4 through the washer 33 with packing, and screw the back cover set screw (not shown) into the screw hole 10 of the back cover set screw 8. To meet. The back cover set screw 8 and the front cover set screw can be assembled correctly even if there is no instruction or construction instruction, and an assembling error can be avoided. In this case, the length of the front cover set screw that is screwed into the back cover set screw 8 is made shorter than the required neck length of the back cover set screw 8 or both set screws have different diameters. Since the set screw cannot be attached to the wall 2 side, the assembling becomes easier.

The operation of the wall inspection port water blocking structure constructed in this way will be described. FIG. 4 is a cross-sectional view of the main part of the wall inspection port waterproof structure of FIG. 1, and when the back cover 4 is assembled, the back cover 4 is pressed by the back cover set screw 8 toward the mounting surface 2 a of the wall 2. At that time, since the bending portion 23 at the peripheral edge of the back lid 4 strongly presses the packing 6 due to the rigidity together with the rigidity of the bending portion 24 on the inner peripheral side (not shown), a constant depth C from the mounting surface 2a is provided. The packing 6 is pressed against the bottom of the recess 31 provided therein, so that water leakage from the recess 31 can be prevented.

FIG. 5 is a perspective view showing an application example of the wall inspection port water blocking structure of FIG. 1, in which a wall 2 forming an apron of a bathtub 42 installed in a bathroom 41 is provided with an inspection port. The side of the apron facing the washing area 44 has an unevenness imitating a tile shape, and a waterproof lid including a back lid 4 and a front lid 5 is provided on the uneven surface 2a. The front cover 5 has its rigidity secured by its outer peripheral portion and the bent portion on the inner peripheral side. By fixing the front cover 5 by screwing it into the portion and attaching the screw cap 13 to the head of the front cover fixing screw 12, the inspection port of the wall 2 can be closed without water leakage and can be closed with a cosmetic material. it can.

FIG. 6 is a cross-sectional view of a main part of a wall inspection port water blocking structure according to another embodiment. The cross section of the back cover 4 projects in a circular arc shape with a constant projection amount A toward the mounting surface side. The bent portion 51 is formed, and the packing 6 is attached to the protruding side thereof. Since it is clear that the above-mentioned configuration has the same effects as the above, detailed description thereof will be omitted.

[0018]

As described above, the waterproof lid of the wall inspection port waterproof structure according to claim 1 closes the inspection port opened to the wall surface.
Detachable waterproof lid and this waterproof lid and the mounting surface on the wall side
A wall inspection port with a packing installed between
In addition, the waterproof lid can be bent at the part facing the mounting surface.
A flexural rigidity that can hold the packing with
It has a curved part, and the inner circumference is defined by the peripheral edge of the waterproof lid and the set screw.
The bent portion is formed so as to bend along the side portion.
As a result, the packing pressed by the bent portion has a water blocking effect, and therefore the wall inspection port water blocking structure of the present invention is provided with a simple waterproof lid even if the wall-side mounting surface has irregularities. The inspection port can be waterproofly closed.

According to the second aspect of the present invention, since the back cover set screw of the wall inspection port water stop structure has a screwing portion for fixing the front cover set screw to its head, the front cover set screw is attached to the back cover at the time of assembly. It is assembled to be screwed through a set screw. Therefore,
The above-mentioned wall inspection port water-stopping structure enables error-free assembly without reference to assembly instructions or work instructions, and ensures installation of the waterproof lid according to specifications.

[Brief description of drawings]

FIG. 1 is a plan view of a partially broken wall inspection port waterproof structure according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view showing the main parts of the wall inspection port waterproof structure of FIG. 1.

FIG. 4 is an explanatory view of the operation of the main part of the wall inspection port water blocking structure of FIG. 1.

FIG. 5 is a perspective view showing an application example of the wall inspection port water blocking structure of FIG. 1.

FIG. 6 is a cross-sectional view of a main part of a wall inspection port water blocking structure according to another embodiment.

[Explanation of symbols]

1 ... Wall inspection port waterproof structure, 2 ... Wall, 2a ... Mounting wall surface, 2
b ... hole, 3 ... inspection port, 4 ... back cover (waterproof lid), 4a ... hole,
5 ... Front lid (waterproof lid), 6 ... Packing, 7 ... Screw hole, 8 ...
Back cover set screw, 8a ... Head part, 10 ... Screw hole, 11 ... Packing, 12 ... Front cover set screw, 13 ... Screw cap, 22
... fixing plate, 23,24 ... bending portion, 25,26 ... bending portion,
31 ... Recessed portion, 32 ... Large diameter stepped portion, 33 ... Packing washer, 51 ... Bent portion, A ... Displacement amount, B ... Width, C ... Depth.

Claims (2)

(57) [Claims] 1. A wall inspection port water stop structure comprising a detachable waterproof cover for closing an inspection port opening on a wall surface, and a packing interposed between the waterproof cover and a wall-side mounting surface. The waterproof lid has a bent part with bending rigidity that can hold the packing by bending the part facing the mounting surface.
The inner periphery of the waterproof lid and the set screw.
The wall inspection port water stop structure is characterized in that the bent portion is formed so as to bend . 2. The waterproof lid has a double structure consisting of a back cover for closing the inspection port and a front cover for covering the front side of the back cover, and the back cover can be attached to and detached from the inspection port by a back cover fixing screw. The wall inspection port water stop structure according to claim 1, wherein the front cover is fixed by the front cover fixing screw screwed to the head of the back cover fixing screw while being attached.