JPH0523634Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a cover receiving frame installed at above-ground openings of underground structures, and more specifically to a metal cover receiving frame that is attached to openings such as manholes cast and assembled from concrete, water control valves installed in water supply systems, exhaust valves, fire hydrants, and other valve boxes for protecting and operating them.

[Conventional technology]

Traditionally, manholes, valve cabinets, etc. are constructed on-site by constructing concrete forms and pouring concrete.
The cover plate and cover frame have traditionally been attached to the opening, but recently concrete factories have started to pre-cut manholes and valve casings into easy-to-carry sizes, mold them, and assemble them on site. Both are installed in the field.

[Problem that the invention attempts to solve]

In recent years, valve casings and other items have been molded and supplied at concrete factories, but they are not standardized nationwide, and each manufacturer often supplies them with different dimensions, leading to demand fluctuations. In some homes, the valve casing, lid plate, and lid holder frame may be ordered from different companies, even if the dimensions are slightly different. Therefore, the dimensions of the handle of the valve casing lid holder frame may not match, and the lid holder frame may be damaged. If it is larger than the valve housing, the opening of the lid holder frame is larger than the opening of the valve casing, making it easier to install, but if the opening of the valve housing is smaller than the opening of the lid holder frame, align the centers of each opening and install. It was difficult to do so, and there was a risk of misalignment even after installation.

[Means for solving problems]

The object of the present invention is to provide a lid holder frame that can easily align the centers of the two without causing misalignment even if the dimensions of the holder frame differ from the dimensions of the mounting part of the valve casing, that is, the dimensions of the opening. and
A groove opening from the outer edge to the inner edge of the pedestal is provided at a position that divides the bottom surface of the flange-shaped pedestal of the lid holder frame, that is, the surface in contact with the valve casing, into at least four equal parts, and the lid holder frame can be moved at any point by moving within the groove. This purpose can be achieved by attaching a locking metal fitting with a locking piece hanging down from the inner end which is fixed with a bolt or the like.

〔Example〕

The present invention will be described with reference to the embodiments shown in the drawings.

Embodiment 1 Figures 1 to 3 show examples of a rectangular lid holder frame 1 used for a valve casing 1 having a rectangular opening. Grooves 5, which are placed on the upper end surface of the side wall forming the opening of the valve housing 10 and open from the outer edge to the inner edge, are formed on the bottom surface of the four corners of the flange-shaped pedestal 2 of the lid holder frame 1 in contact with the valve housing 10.
A lid equipped with a locking fitting 3 having a locking piece 4 hanging from the inner end, which can be moved in the groove 5 and fixed to the pedestal 2 of the lid receiving frame 1 at any location with a bolt 7 or the like. This is slot 1. The groove 5 provided in the lid holder frame 1 is open at both ends as shown in FIGS. 2, 3 and 5, and the diameter is equal to the diameter of the threaded portion of the bolt 7 along the center line of the bottom of the groove 5 when viewed from the bottom. Very wide slit 6
A bolt threading hole 8 is provided on the surface of the locking fitting 3 where the slit 6 fits, but it may be provided in one place as shown in FIG. 3, but it is also acceptable to provide it in two or more places as shown in FIG. do not have.

The locking piece 4 of the locking fitting 2 is preferably formed into a dogleg shape as shown in FIG. Good too.

Embodiment 2 In Figures 4 and 5, a groove 5 is provided in the bottom of a flange-shaped pedestal 2 in the center of each side of a rectangular lid holder frame 1, and a locking fitting 3 is attached with a bolt 7, etc., as in Embodiment 1. It can be fixed at any location in the groove 5. In this case, it is preferable that the locking piece 8 of the locking fitting 3 has a flat plate shape as shown in FIG. 6, and the surface that contacts the inner wall of the valve housing 10 is wide.

[Effects of the invention] Since the present invention is constructed as described above, even if the dimensions of the valve housing 10 and the lid holder frame 1 are different, the second
As shown in the figure, the locking piece 4 of the locking fitting 3 is attached to the valve housing 10.
If it is locked to the upper end of the inner wall of the lid holder frame 1
can be easily fixed in a predetermined position, and can be used without fear of the lid holder frame 1 rattling or shifting.

Although the present invention has been shown as an embodiment of a rectangular lid holder frame, it can also be applied to an annular lid holder frame with a disc-shaped lid plate, and a plurality of bolt holes 8 for the locking fitting 3 are provided. As a result, the movable range of the locking metal fitting 3 becomes wider, and as shown in FIGS. By providing this, the locking metal fitting 3 will be in good condition without any risk of slippage.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a top view, FIG. 2 is a partial sectional view showing the implementation situation,
Fig. 3 is a bottom view of the locking fitting attachment part, Fig. 4 is a top view of another embodiment, Fig. 5 is a partial perspective view of the groove forming part, and Fig. 6 is the locking fitting used in Fig. 5. FIG. 1... Lid holder frame, 2... Pedestal, 3... Locking metal fittings,
4...Locking piece, 5...Groove, 6...Slit, 7...
...Bolt, 8...Bolt screw hole, 9...Cover plate, 1
0... Bento.

Claims (1)

[Scope of utility model registration request] In a metal lid holder frame 1 that is attached to an opening of a valve housing 10 or the like formed of concrete,
A groove 5 opening inward from the outer edge of the lid holder frame 1 is provided at a position dividing the bottom surface of the flange-shaped pedestal 3 of the lid holder frame 1 into at least four equal parts. 7. A lid holder frame for a valve casing or the like, characterized in that a locking metal fitting 3 having a locking piece 4 hanging down is attached to the inner end of the frame, which is fixed through a slit 6 provided in a groove 5.