SK982017U1 - Inspection chamber with the cover to vertical and angular adjustment - Google Patents

Abstract

The sewer shaft has a concrete cone (4), at the top it has at least 3 steel anchors (5), for screwing the lifting eyes (6) or threaded anchor rods (7). The space between the concrete cone (4) and the round cover (1) or the square cover (2) is filled with a ring (15) or parts of the ring (15). The round cover (1) is composed of a fixed part (1A) and a movable part (1B) and a cover plate (1C). The fixed part (1A) has at least 3 mounting holes (3), at least 3 helical (11) V-shaped or (12L) L-shaped projections (12V) at the periphery of the inside or outside. from the outside, at least 3 helices (11) with projections (12V) or (12L) arranged mirror-to-fixed (1A). The square hatch (2) is composed of a fixed part (2A) and a movable part (2B) and a cover plate (2C). The rigid portion (12A) has 4 mounting holes (3), the inside or outside of the projections (13A) circumferentially, arranged one behind the other. The movable part (2B) has projections (13B) arranged on the inside or outside of the periphery, arranged in a stepwise fashion, mirror-like to the fixed part (2A).

Description

Technical solution related to principally new way of assembly of upper part of sewer manholes and also sewer manhole covers, with possibility of height and angular adjustment according to existing terrain conditions at the stage of construction, with possibility of further height adjustment during operation without breaking road or other paved areas subsequent repairs, without extensive traffic restrictions and minimal expenditure.

BACKGROUND OF THE INVENTION

Following careful examination of the installation of sewer manholes and manhole covers in the field, as well as a study of the technical manuals of manhole and manhole manufac- turers in the European Union, the following procedures and practices for their construction and completion have been identified.

- The drainage floor is laid on a pre-fabricated foundation so that the shaft is vertical, not perpendicular to the ground or to the treated or paved surface,

- Single-channel drainage rings are placed on the sewage bottom,

- A sewer cone with a single trough is placed on the sewer rings.

- Sewer alignment rings with a single trough, cylindrical or wedge-shaped, are placed on the drain cone, or a cap plate is also placed /,

- The sewer ring, round or square, is placed on the sewer rings.

All these parts are glued to each other with cement glue or high-strength foam.

The pits are covered with gravel and the hatches are then asphalted or concreted.

This ideal procedure is suitable for ideal conditions, which in practice means that it is a new building and still almost ideally flat terrain.

Significant installation problems arise when it comes to sloping terrain, and this is how to place the hatch at the correct slope as the shaft is vertical and the terrain is sloping. Although it is possible to use wedge-shaped rings with one standardized inclination, which usually does not fit, it is also thin and brittle and breaks. Another and significant problem arises during operation, when compacting and pushing the shaft into the ground from traffic, or also when making new and higher asphalt carpet.

Then it is necessary to milled around the shaft, cut asphalt, remove the hatch, cut the substrate and clean everything.

This is done by aligning the height of the hatch with the terrain rings, but this is never ideal.

This is followed by one good practice that no manufacturer mentions or openly mentions, and that is improvisation on the spot.

Specifically, it is placing wedges under the rings and hatch, inflating the inner tube from the tire, to close inaccuracies inside the shaft and then pouring concrete from outside.

This is followed by laborious and gradual compaction of gravel in layers and asphalting around the hatch. All this is necessary to do often in full car traffic, which is a huge financial and safety problem

The hatches are currently made of materials such as cast iron, plastic, composite, concrete, or a combination thereof.

They are either round or square in shape, mostly square. Structurally, they are usually made of a frame and a cover plate or lattice.

All hatches have smooth horizontal contact and mounting surfaces, which is not really the case, as the product cools when the product cools and so the individual parts impact and ring each other during operation. Some manufacturers solve this problem with additional seals, but they accumulate road salt and gravel, causing faster corrosion and wear.

As an absurdity, when finishing a new road, asphalters will almost never be aligned in height with the hatch level, which in practice looks like they asphalt and roll all the way along with the hatches and their surroundings, and then all sewage hatches from new roads milled, cut asphalt, cut the substrate and clean everything. This is followed by matching the height of the hatch with the asphalt rings and improvisations, ie putting the wedges under the rings and hatch, inflating the inner tube from the tire to close inaccuracies inside the shaft and then pouring concrete from the outside, all on a brand new road. asphalting so as not to damage it and also to connect even newer asphalt with new asphalt so that the competent authorities do not notice it during the inspection.

SK98-2017 U1

The essence of the technical solution

The purpose of this technical solution is to solve:

a) construction and assembly details important at the stage of construction and completion of sewer manholes, to facilitate their assembly even in difficult slope conditions, b / construction and assembly details important in the process of use, ie during their operation, also to speed up and cheaper their repairs, whereas these are mostly congested constructions and constructions.

The key solution in part a / covered by this technical solution is the different placement of the concrete cone and the parts above it by means of threaded anchor rods, mainly used to support, support and anchor the cast, plastic or composite hatch, in conjunction with rectification matrices for adjusting the height and inclination of the lid, the rectification nuts being both bottom and top of the lid and allowing it to be fixed, which may be permanent or variable, according to the shape of the rectifying matrices.

The space between the concrete cone and the hatch, usually with the ring or its parts, is complemented by a concrete mixture, while the threaded anchor rods also form the steel reinforcement of the cone structure, which would not otherwise be there, making the joint more flexible and stronger especially from vehicle wheels.

The key solution in section b /, which deals with this technical solution, is that during the operation of the sewer manhole and hatch, that is, when they are dropped by vibration, road repair or laying of new asphalt carpet, it is not necessary to mill around the manhole, cut asphalt, remove the hatch, cut the substrate and clean everything, then tune the hatch heights with rings, which never ideally succeed, then improvise by placing the flaps under the hatch and then pour the concrete from the outside, then laboriously compact and asphalt surroundings to the desired height.

The new hatch is designed to be placed on a concrete cone in 2 basic shapes, either round or square (polygonal). The difference in this new technical solution over the various current hatches is that:

Round hatch - the essence of the technical solution:

- The round hatch consists of a fixed and movable part or even a cover plate, with the movable part sliding in or sliding on the outside of the fixed part. The fixed part has at its periphery both internally or externally a helix with protrusions of at least 3 pieces and more, while the movable part forms a counterpart, along its periphery either externally or externally also a helix with protrusions, in number and shape mirror-like fixed part.

- The helices have protrusions, either symmetrical V-shaped or non-symmetrical L-shaped, which act as self-locking, limiting the mutual play between the two hatch parts and thus hammering each other during the impact of the vehicle wheels.

- The height of the hatch is adjusted by raising and rotating the movable part as it is when screwing screws, but with the difference that the protrusions on the helix ensure positional stability against spontaneous rotation in any direction. How many protrusions the movable part is rotated, the height increases, or reduce its height from the fixed part of the hatch by h1-hx

- In case of need outside of the boring lift of the hatch, it is also possible to use an intermediate piece of similar design.

- This technical solution basically excludes maintenance and repair work, to the extent otherwise customary

Square (polygon) hatch - the essence of the technical solution:

- The square (multi-polygonal) hatch consists of a fixed and movable part or even a cover plate, with the movable part sliding in or sliding on the outside of the fixed part. The fixed part has stair protrusions on its periphery, either internally or externally, the movable part forms a counterpart, it also has stair protrusions on its periphery, either externally or externally, in the number according to the fixed part.

- The stepped projections are designed so that the movable part can be lifted and rotated on the square hatch up to 4 times by 90 °, which means that it is possible to adjust 4 height positions, ie 1 height for each 90 ° rotation, for a polygon hatch is the number of elevation positions according to the number of sides of the polygon.

- In case of need outside the boring lifting of the hatch, it is also possible to use a spacer of similar construction.

- This technical solution basically excludes maintenance and repair work, to the extent otherwise customary

BRIEF DESCRIPTION OF THE DRAWINGS

The essence of the technical solution will be explained by means of drawings

In FIG. 1 shows the current method of construction of a concrete sewer manhole with cone, alignment rings and hatch, without the possibility of precise height and angular adjustment, without steel anchors, threaded anchor rods, rectifying nuts and movable adjustable part.

SK98-2017 U1

In FIG. 2 is a concrete cone having at least 3 steel anchors mounted on its upper and tapered part for screwing the lifting eyes, for lifting and laying the cone on the shaft.

In FIG. 3 are screwed threaded anchor rods in a concrete cone, for the height and tilt adjustment of the hatch, with rectifying nuts and washers, the intermediate space switching off the concrete ring with holes, or parts thereof.

In FIG. 4 are details of a steel anchor used for screwing up the lifting eyes, also for lifting and laying the cone on the shaft, and also a detail of the screwed threaded anchor rod, for the height and tilt adjustment of the cover, with rectifying nuts and washers.

In FIG. 5 are details of the rectification nuts, both bottom and top of the hatch, allowing its height and tilt adjustment and fixation, and this may be permanent with conventional washers and nuts, or time immeasurable due to a different shape of the lower rectification nuts that are operated from the top, bottom conical shape against sticking to concrete.

In FIG. 6 are views and cross-sectional views of a round hatch consisting of a fixed and movable part and a cover plate, which has a circumferential inside and out of a helix with protrusions of at least 3 pieces or more. Screws with projections are symmetrical in V-shape or unbalanced in L-shape. The height of the hatch is adjusted by lifting and turning the movable part against the fixed part, by hl - hx

In FIG. 7 are cross-sectional views of a round hatch, with alternatives of V or L-shaped protrusions, with the movable part sliding in or sliding from the outside to the fixed part, with the possibility of oversized elongation by means of a spacer.

In FIG. 8 are views and cross-sectional views of a square hatch consisting of a fixed and movable part or even a cover plate, the movable part being pushed in or pushed outwardly on the fixed part, having internally or externally stepped projections

In FIG. 9 shows views and cross-sections of a square hatch where the movable part is inserted into the fixed part, with stair projections rotating 4 times by 90 ° by 4 height positions, h1 to h4.

In FIG. 10 shows views and cross-sections of a square hatch where the movable part is slid onto the fixed part with the stepped projections. rotating 4 times at 90 ° by 4 altitudes, hl to h4.

In FIG. 11 shows views and cross-sections of a square hatch where the movable part is inserted into the fixed part, with stepped protrusions, the number of stepped protrusions for better stability of the movable part being multiplied several times in a row.

EXAMPLES

The round cover 1 comprises a fixed part 1A and a movable part 1B, and a cover plate 1C, the fixed part 1A having at least 3 mounting holes 3.

The square (polygon) hatch 2, consists of a fixed part 2A and a movable part 2B, and a cover plate 2C, the fixed part 2A having 4 mounting holes 3.

The hatch is mounted on a sewer shaft having a concrete cone 4, having at least 3 built-in steel anchors 5 on its upper and tapered part, which are built into the structure during casting.

The steel anchors 5 serve to screw in the lifting lugs 6, to lift and place the cone on the sewer shaft. The steel anchors 5 also serve for screwed threaded anchor rods 7, for the height and tilt adjustment of the round cover 1, or the square cover 2, by means of the rectification nuts 8 and washers 10, from below and above the cover 1 or 2, wherein said rectification may be permanent, in the case of the conical shape of the lower rectifying nuts 9, also changeable, operable from above, so that they can at any time lift the hatch 1 or 2 by their rotation.

The space between the concrete cone 4 and the cover 1 or 2 vertically, as well as the threaded anchor rods 7, is filled horizontally with the ring 15 or with parts of the ring 15.

The circular hatch 1 and its fixed portion 1A have at their periphery, either internally or externally, a helix 11, of at least 3 pieces, each having a symmetric V-shaped projection 12V or an L-shaped unbalanced projection 12L.

The height of the round cover h1 - hx is adjusted by raising and rotating the movable part 1B of the cover 1, which also has a circumferentially external or internal helix with protrusions 12V or 12L, in mirror image of the fixed part _LA.

The square (polygon) hatch 2 has 4 mounting holes 3 on the fixed portion 2A, has a stepped protrusion 13A on the fixed portion, inside or outside, on the movable portion 2B, and also has stepped protrusions 13B on the outside or inside such that By rotating the movable portion 2B relative to the fixed portion 2A 4 times by 90 °, it is possible to adjust the 4 height positions h1 to h4 in the case of a polygonal hatch according to the number of sides of the height h1-h1. The stepped projections 13A and 13B for greater stability may be multiplied several times.

SK98-2017 U1

Industrial usability

Sewer manhole and hatch with height and angular adjustment has its use especially in the area of transport constructions and engineering infrastructure in towns and municipalities.

Usability is important at the stage of construction and completion of sewer manholes, to simplify and improve their installation, even in difficult slope conditions.

Utilization of technical details is advantageous also in the process of use, ie during their operation, also to speed up and cheaper their repairs, as these are mostly congested constructions without the need for extensive breaking of roads or other paved areas, their subsequent repair, even without extensive 10 traffic restrictions.

Claims (4)

PROTECTION REQUIREMENTS Sewer manhole with a hatch, with height and angular adjustment, characterized in that it consists of a concrete cone (4) with at least three steel anchors (5) on screwed lifting eyes (6) or threaded anchor rods (7) on which a cover (1, 2) is provided which includes a fixed part (1A, 2A) with mounting holes (3), a movable part (1B, 2B) disposed on the fixed part (1A, 2A) and a cover plate (1C, 2C) located on the movable part (1B, 2B), wherein the fixed part (1A, 2A) and the movable part (1B, 2B) are provided internally or externally with projections (12V, 12L, 13A, 13B). Manhole with height and angular adjustment according to claim 1, characterized in that the threaded anchor rods (7) are provided with rectifying nuts (8) or lower rectifying nuts (9) with washers (10), the space between the concrete cone (4) and the cover (1, 2) are filled with a ring (15). Manhole with a height and angular adjustment according to claim 1, characterized in that the round cover (1) has at least 3 helices (11A) with protrusions (12V, 12L) on the outside or outside of the fixed part (1A). arranged mirror-opposite to the movable part (1B), with at least 3 helices (11) with projections (12 V, 12L). Sewer manhole with a hatch, with height and angular adjustment according to claim 1, characterized in that the square hatch (2) has circumferentially internally or externally a fixed part (2A) stair-like projections (13A) arranged mirror-like to the movable part (2B). / with stepped projections / 13B /.