KR900003520Y1 - Fabricated manhole - Google Patents

Abstract

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Description

Prefabricated manhole

1 is an exploded perspective view of the present invention.

2 is a perspective view of the assembled state of the present invention.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view taken along the line B-B in FIG.

* Explanation of symbols for main parts of the drawings

1: Core skeleton 2: Base plate

3: top plate 4: side plate

2 ', 3': fitting request 4 ': fitting protrusion

The present invention consists of a bottom plate, a top plate, and several pieces of side plates formed in a unit board in the construction of a manhole for installation underground for inspection, cleaning, and repair of underground works such as communication cables, telephone lines, or gas pipes. The present invention relates to an easy-to-carry manhole that can be easily and easily assembled during construction by allowing the manhole to be configured quickly and easily.

Conventionally, in constructing a manhole for maintenance management of underground buried works, the foundation works after the excavation work underground, and after the mold is formed around the steel frame, cement mortar is injected into the mold to cure and solidify the concrete. It was a defect that required skilled workers in constructing a man's manhole and required much time and effort in the curing process.

In addition, it is known that the sewage sump can be constructed as an assembly type, but it is known from Japanese Laid-Open Utility Model Publication No. 55-131384, but it divides the front and rear wall blocks up and down, and at the bottom of the lower block piece, A semicircular arc is formed at the center of the contact surface of the bottom fitting protrusion and the top and bottom block pieces inserted into the recessed fitting recess, and the top and bottom block pieces of the front and rear wall blocks are sequentially inserted into the front and rear of the block of the board which becomes the space between the left and right wall blocks. When assembled, the semicircular arcs of the upper and lower blocks are formed so that a hole into which the tube can be inserted is formed on the bottom and the inner surface of the blocks. The front and rear walls of the wall and the inner wall of the wall projected in a staggered direction To a complex configuration, such as to be formed with a protruding semicircular arcs gwaeji bottom dividing the Bullock Bullock in a vertical piece as well as making the not easily was the defective a complicated construction when installed underground.

The present invention removes these conventional drawbacks, and forms a member plate body having a predetermined standard in advance for manhole construction, and forms a symmetrical fitting projection jaw at the upper and lower sides of the front and rear sides, and the upper surface of the bottom plate and Excavate a series of fitting requests for fitting the axial protrusions on the bottom of the top plate, inserting the fitting protrusions at the bottom of the side plate into the fitting requests of the bottom plate, and placing the side plate on the edge of the top plate. By fitting the bottom fitting of the side to the fitting projection of the top of the side plate is configured to form a manhole, as described in detail below according to the drawings.

A cement or synthetic resin layer is placed on the outer circumferential surface of the cast core frame 1 to form a bottom plate 2 and a side plate 4 of a predetermined standard, and the side plate 4 for each quadrilateral surface of the bottom plate 2. In order to allow the squeeze, the series of fitting requests (2 ') along the periphery of the bottom plate (2) is protruded, and the fitting protrusion (4') is protruded on the upper and lower ends of the side plate (4). The side plate 4 is placed at each circumferential edge of the bottom plate 2 so that the fitting projection jaw 4 'of the bottom side of the side plate 4 is fitted to the fitting request 2' of the bottom plate 2, On the bottom of the upper surface plate 3 on which the vent opening 6 of the hole lid 5 is formed, a series of fitting requests 3 'are extruded along the periphery of the upper surface side of the upper surface side of the side plate 4; The top plate 3 and the side plate 4 are joined to each other so as to be inserted into the fitting request 3 ', and each bonding portion is formed by forming an adhesive layer 7 in a watertight state.

Unexplained reference numeral 8 in the drawings is a connection port for underground burial.

The present invention constructed as described above requires the manhole to be completed by assembling each unit plate formed in advance to a predetermined standard on the excavated ground, and thus requires no special skilled workers than the conventional cement curing process. The work is completed in a short time without taking much time and effort in curing curing, and the coupling of each side plate 4 is required to fit the bottom plate 2 and the top plate 3 (2 ') (3). It is designed to be inserted into '), and its structure is simple, so it is easy to manufacture and assemble, and a watertight adhesive layer 7 is formed to prevent leakage, so that it does not leak and maintains a solid assembly state for a long time. The durability will be excellent effect.

Claims (1)

Peripheral periphery and bottom opening 6 of the bottom plate 2 are provided in accordance with the installation of the side plate 4 at the periphery of the top surface of the bottom plate 2 on which the core skeletal structure 1 is superimposed on a cement or synthetic resin layer. The bottom periphery of the upper surface plate 3 is formed with a series of fitting requests (2 ') (3') along the periphery, and forming a fitting projection jaw (4 ') in the upper and lower ends of the side plate (4) The bottom plate 2, the top plate 3, and the side plate 4 are joined to each other so that the fitting projection jaw 4 'is inserted into 2') and 3 '. Formed prefabricated manhole.