JPS59150831A - Assembly manhole - Google Patents

Abstract

PURPOSE:To strengthen the connection of blocks by strongly combining the blocks of a manhole by screwing connecting bolts into connecting plates. CONSTITUTION:On a round bottom plate block 1, a body block 3 with holes 4 and 5 through which an inlet tube and an outlet tube are inserted, a straight wall block 6, an one side-inclined block 7, a hollow disc-shaped regulation ring 8, a regulating wire 9, and a cover receiving frame 10 are orderly stacked up. The blocks 1, 3, 6, and 7 are connected mutually by screwing connecting bolts 17 with connecting plates 15 and 16. The regulation ring 8, the regulating washer 9, and the cover-receiving frame 10 are combined mutually by screwing a ring bolt 20 with the anchor bolts 19, screwing a bolt 21 with the ring bolt 20, and screwing a nut 23 with the bolt 21.

Description

[Detailed Description of the Invention] The present invention relates to a lightweight assembly manhole that can be mass-produced in advance at a factory and easily assembled on site. 4) A cylindrical frame block with holes drilled in advance, a cylindrical straight-walled block, and an eccentric cylindrical one-sided inclined block are stacked in order, and one piece [full
A hollow disc-shaped adjustment ring, an adjustment washer, and a lid holder frame are stacked in this order on the upper end of the inclined block, and the outer peripheral surfaces of the bottom block, frame block, straight wall block, and single-open inclined block are connected through a fastening plate. An assembly characterized in that the adjusting ring, adjusting washer, and (a) (a) (the base portion of the adjusting ring, adjusting washer, and receiving frame are embedded in the single-sided inclined block and protrude upwardly, and are connected to each other by anchor bolts, etc.) It concerns manholes.

Conventional manholes of this type were generally constructed by making a formwork on site and pouring concrete into it, but this was difficult to do in a narrow space, and it took many days to construct, resulting in high costs. At the same time, due to poor construction conditions for manholes at the site, there were drawbacks such as poor quality and difficulty in constructing manholes of a certain quality.

The present invention is a technology that was developed overcoming the drawbacks of the conventional technology, and in particular, holes for inserting inflow pipes, outflow pipes, etc. are drilled in advance, and one-frame blocks, straight-walled blocks, etc. are manufactured in a factory. This invention relates to an assembly manhole characterized in that the manholes are manufactured in advance and assembled one after another in the field, and are then tightly connected to each other via such a fastening plate or the like.

To specifically explain one embodiment of the assembled manhole according to the trap of the present invention with reference to the drawings, 1 is a donut-shaped hollow disc-shaped bottom block, which is placed on a foundation stone 2 provided at the bottom of the manhole hole. is set up.

Reference numeral 6 denotes a cylindrical solid block installed on the bottom block 1, and a hole 4 for inserting an inflow pipe and a hole 5 for inserting an inflow pipe are bored in the side wall thereof in advance. 6 is a cylindrical straight wall block, and 7 is an eccentric cylindrical one-sided inclined block. These blocks 6.7 are stacked in order at the upper end of the frame block 6. Numeral 8 is a hollow disc-shaped adjustment ring, 9 is a rectangular adjustment washer made of a steel back plate, and 10 is a non-receiving frame to which the lid 11 can be attached, each of which is attached to the upper end of the single-sided inclined block B. They are stacked in order.

Next, grooves 12 are formed on the inner circumferential edges of the upper ends of the blocks 5, 6.7 and the adjusting ring 9, respectively, and grooves 12 are formed all around the inner circumferential edges of the lower ends of the blocks 6.7 and the adjusting ring 9, respectively. A convex strip 16 that can fit into the concave groove 12 and has a smaller area than the concave groove 12 is provided protruding over the entire circumference.
The structure is such that a gap 14 is formed between the two when the protruding strip 16 is inserted into the L. Reference numerals 15 and 16 are binding plates, respectively, and the outer peripheries 1 of the prongs 2 1.5 and 6.7 are
The bolts 17 are attached to the tops of the holes 1 and 2, and these parts are fastened to each other. Further, 18 is a step for raising and lowering attached to the inner circumferential wall surface of the block 6.6.7. Reference numeral 19 denotes an anchor screw bolt erected from the upper edge of the block 7, the base of which is buried and fixed in the upper part of the block 7,
It is screwed into a ring bolt 20 embedded in the adjustment ring 8, thereby tightly connecting the ring 8 to the block 7.

The adjustment washer 9 and the lid holder frame 10 include a bolt 21 and a lock washer 22 screwed into the ring bolt 20, respectively.
, Natsuto 26 etc. - IM! It is connected and fixed to the ring 9. 24 is a piece of mortar provided around the adjusting washer 9. Concave groove 12 of the block 3.6.7
A rubber ring 2 is placed in the gap 14 formed by the protruding strip 16.
5 and a sealing material 26 are provided to form a completely honeycomb-like joint between the blocks 5 and 6.7.

Concrete 27 is poured onto the bottom slab 1, thereby interconnecting the blocks 1, 6 and the foundation stone 2 and forming the inner bottom surface of the manhole.

Reference numeral 28 indicates an inflow pipe, and 29 indicates a bIL outlet. The ends of these pipes are inserted into holes 4 and 5 of the main body block O, respectively, and the installation is fixed around the holes 4 and 5 by joint material 60. ing.

The assembled manhole according to the present invention has a bottom block, one hole for an inflow pipe and an outflow pipe made in advance, a one-frame block, a straight wall block, and a one-sided inclined block, which are manufactured in a factory, respectively.
Since the construction is assembled on-site, the construction work is extremely easy, the construction period can be significantly shortened, and products with stable quality can be mass-produced at low cost. Since the surfaces are fastened together with a fastening plate, the mutual connection is strong.Furthermore, each block has concave grooves and protrusions that mesh with each other to connect them, and the gaps formed by these are filled with bim rings and sealing material. Since the joint is provided, the joint can be kept tight, and if a donut plate is used for the bottom block, concrete Y can be poured into this to connect the bottom block, foundation stone, and the lower part of the frame block together. It has the characteristics that it can simultaneously form the bottom surface of a manhole.

[Brief explanation of the drawing]

FIG. 1 is an explanatory partial cross-sectional view showing the constituent parts of the manhole of the present invention, and FIG. 2 is a vertical cross-sectional view after the assembly is completed. 1.3 and 6.7 are blocks respectively, 8 is adjustment,
10 is the lid holder frame, 11 is good, 14 is the gap,
15.16 is the binding plate, 18 is the step,
20 is a ring bolt, 25 is a rubber ring, 26 is a seal phase, and 27 is concrete. Patent applicant: Haneda Huyum Tube Co., Ltd. Figure 1 Figure 2 Figure 1

Claims (1)

[Scope of Claims] (]) Seven holes for inserting inflow pipes and outflow pipes are preliminarily formed on the disc-shaped bottom block.A cylindrical frame block, a cylindrical straight-walled block, and an eccentrically inclined block. A cylindrical single-sided inclined block is stacked one after the other, and a hollow disc-shaped adjustment ring, an adjusting washer, and a lid receiving frame are stacked in this order on the upper end of the single-sided inclined block, and the bottom plate block, the frame block, the straight wall block, and the single-sided inclined block are stacked in order. Anchor bolts, etc., whose outer circumferential surfaces are mutually fastened through block fastening plates, and the bases of the adjusting rings, adjusting washers, and lid receiving frames are buried in the single-sided inclined block and protrude upward. This is an assembly manhole characterized by the fact that they are connected together. (2) A recessed groove is formed on the inner peripheral edge of the upper end of each block over the entire circumference, and a groove that can be fitted into the recessed groove on the inner peripheral edge of the lower end of each block and adjustment ring, and a space between the recessed groove and the recessed groove. (3) A gap constituted by a concave groove and a convex ridge, as set forth in claim 1, wherein the manhole is provided with a convex protrusion of a shape capable of forming a gap. 2. The assembled manhole according to claim 1, wherein a rubber ring and a sealing material are omitted to form a joint portion of each block in the shape of a water channel. (4) The assembled manhole according to claim 1, characterized in that a tightening plate is attached to the outer circumferential surface of each block, and each block is tightened with the tightening plate. (5) An assembled manhole according to claim 1, characterized in that holes for inserting an inflow pipe and an outflow pipe are pre-drilled in the side wall of the frame block. (6) The assembled manhole according to claim 1, wherein the bottom plate block is shaped like a hollow donut. (Force: After stacking donut-shaped bottom blocks and frame blocks in order on the foundation, concrete is poured onto the bottom blocks, and the lower parts of the bottom blocks, foundation, and frame blocks are integrally connected by the pressure of the poured concrete.) An assembled manhole according to claim 1, characterized in that: