KR880003698Y1 - Mangole cover - Google Patents

Abstract

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Description

Fixing device for manhole cover of sewage pipe

1 is an exploded perspective view of the present invention.

FIG. 2 (a) is a cross-sectional view taken along the line A-A of FIG. 1 showing a state where a lid is inserted into an anchor sheet of a manhole.

FIG. 2 (b) is a cross-sectional view taken along the line A-A of FIG. 1 showing a state in which the anchor sheet and the lid are fixed to the eccentric pivoting piece in FIG.

Fig. 3 (a) is a cross-sectional view taken along the line B-B in Fig. 2 (a).

Fig. 3 (b) is a cross-sectional view taken along the line C-C in Fig. 2 (b).

4 is a plan view of a conventional manhole cover.

* Explanation of symbols for main parts of the drawings

2: inner ring 6: anchor seat

8, 8 ': recessed part 10, 10': cutting surface

11, 11 ': Eccentric rotation East 12: Hanging groove

13, 13 ': handle recess

The present invention relates to the manhole used for the sewage pipes installed near the river. The floodwater overflows into the sewage pipe during flooding and prevents the opening of the van hole due to the buoyancy of the river water. It is to provide a manhole cover for the sewage pipe to be supplied at a low cost and easy to use and transport, so that the lid is made to a small size.

In the conventional manhole for sorting sewage pipes, as shown in FIG. 4, several bolt insertion holes 102 and iron bars are bent at the edges of the lid 101 to secure the lid 101 to the flange of the anchor sheet. Since the hole 104 for fitting the handle 103 is formed, an area for forming the insertion hole 102 and the hole 104 is required, so that the lid 101 needs to be largely formed. 101) When opening and closing, there is a hassle in using dismantling the bolt with a spanner.

The present invention is to eliminate such a conventional drawback bar to form a handle indentation that can enter the finger on the outer peripheral surface of the lid in order to perform the function of the lid handle and the lid fixing at the same time, the lower part of the recess One side of the eccentric turning piece with a cutting surface is installed to rotate freely to open and close the handle recess without loosening the fastening bolt as described in detail according to the following drawings.

The outer ring 1 and the inner ring 2 are connected with several connecting pins 3 to form several spaces 4 between the outer ring 1 and the inner ring 2 and the inner ring side 2 ) The lid 7 is seated on the locking ring jaw 5 of the anchor seat 6 on which the locking ring jaw 5 is formed on the inner circumferential surface thereof, and the left and right sides of the inner ring 2 of the anchor seat 6 are turned outwardly in a "U" shape. The concave concave portions 8 and 8 'are formed to form an eccentric turning piece 11, 11' whose one side is a cut surface 10, 10 'in the concave portion 8, 8'. In the well-known method of installing the lid 7 and the anchor sheet 6 by installing it, the periphery of the lid 7 in which the terrazzo layer is formed is provided with a recess groove 12 and a handle recess 13 ( 13 '), and the bolts 9 and 9' fastened to the anchor sheet 6 are rotatably fitted.

In this way, the present invention, as shown in FIG. 2 (a) and FIG. 3 (a), when the lid 7 is attached to the anchor sheet 6, the bolts 9 and 9 'are left unchanged and eccentric. Only the rotating pieces 11, 11 'are cut in the cut surfaces 10, 10', and then the lid 7 is inserted into the anchor sheet 6 and placed on the hooking jaw 5, and then the handle recess When the eccentric turning pieces 11, 11 'are rotated half a turn with the fingers through (13) and (13') to face the cut surfaces 10, 10 'outwards, the opposite side of the cut surfaces 10, 10' The portion is inserted into the recess 12 of the lid 7 as shown in the second (b) and the third (b) to secure the lid 7 in the anchor sheet 6, on the contrary Even when opening the lid (7), the bolts (9) and (9 ') are not loosened, but the eccentric turning pieces (11) and (11') are rotated half a turn through the handle recesses (13) and (13 '). When the 10 'is directed outward, the eccentric as shown in Figs. 2 (a) and 3 (a) 'Not to catch on, so gwaeji grooves 12 of the hand grip concave inlet 13 (east 13 11 11' will be opened up into a) contains a cap (7).

As described above, the present invention pivotally inserts the eccentric pivoting pieces 11, 11 'to the bolts 9, 9' fastened to the anchor sheet 6, and the handle recesses 13 and 13 '. Since the eccentric pivoting piece (11) (11 ') is rotated through, it is not necessary to rotate the bolt as compared to the conventional bolt fixing hole formed at the edge of the lid so that the bolt can be rotated even when the bolt is melted. 7) It is easy to open and close, and it is convenient for use, and also the manufacturing cost is low because the lid 7 is made compact, and the top layer of the lid 7 is formed of a terrazzo layer, which makes the appearance beautiful and weight. It is light and exhibits an effect such as easy disk.

Claims (1)

Concave indents 8 and 8 'are formed on the left and right of the inner ring 2 of the anchor sheet 6 to install the eccentric pivot pieces 11 and 11' in the indents 8 and 8 '. (7) and anchor sheet (6) to the bolt (9, 9 ') in the usual, the peripheral portion of the lid (7) with the terrazzo layer is formed in the recessed grooves (12) to form a lower side Fixing device for a manhole cover for a sewage pipe, characterized in that the handle inlet portion (13) (13 ') is formed slightly larger than the side.