RU173029U1 - Manhole "floating" type - Google Patents

Abstract

The hatch of the “floating” type manhole refers to devices for closing the inspection wells and is used on city highways with heavy traffic, on main roads (urban and intercity roads with heavy freight and public transport). The manhole of the “floating” type manhole is cast from gray cast iron, ductile iron with spherical graphite (VCh-40). In shape: round. The hatches of the “floating” type manhole are divided according to the rated load into heavy “T” type with a load of 25 tons and heavy “TM” type hatches with a load of 40 tons. The purpose and objective of the utility model is to simplify the hatch design, make it easier and more convenient to use, cheaper and without rotating parts. This problem is solved by using a new locking device consisting of two spring-type locks (latches), a double hinged device without bolts with a hole for draining water (precipitation, melting snow) and an elastic trapezoidal gasket (hardness of at least 40 units according to Shore), which provides a tight fit of the cover to the body (support ring) and ensures quiet operation, and also eliminates flooding of the wells with surface water. The design of the double hinge provides for disconnecting the cover from the body (support ring) in the open position, as well as its automatic fixation. The angle of full opening of the cover is at least 100 °. The design for disconnecting the cover provides for the interchangeability of covers on hatches of the “T”, “TM” type and round inlets. When casting the body (support ring) and the cover, recesses and stops are provided that replace bolted joints and locking rotary devices. The hatch of the "floating" type is poured out of cast iron of the grade: VCh-40, VCh-45, VCh-50, VCh-60 according to GOST 3634-99, their elastic deformation zone (ductility) is equal to steel - Art. - 40, Art. - 50. The hatch consists and is assembled of a body (support ring), a repair insert (shell), a cover and a trapezoidal elastic gasket. The “floating” hatch cover easily opens without a special key and is fixed at an angle of at least 100 degrees, and the system of elements during operation provides guaranteed tight closure of the hatch, reliability and safety, while increasing the operating life of the hatch, the reliability of the assembly, the integrity of the roadway. Reduced operating time (lifting and closing the lid) and the cost of repair work. A completely new system of locking and fixing elements and stops without bolt type in the base (support ring) and lid, the original latch and elastic gasket is applied. Such a design of two locks (latches), A double hinged device with an opening for draining water and a trapezoidal rubber gasket can be used in all types of manholes and storm water inlets of any material.

Description

Manhole manholes are designed for installation on the manhole of underground utilities: heating, gas, cable networks, water supply and sewage.

The main functions of manhole manholes are to protect the well and gutter from damage and to ensure the safety of road and foot traffic. Depending on the maximum load maintained by the hatch, they are installed on the carriageway, in parking lots, sidewalks and in courtyards.

Hatches are divided by load class, type, diameter, and also by weight, height and shape: round, oval, square, etc.

Hatches are designed to access the manifold and valves, to protect wells and drainage channels from external damage and to ensure the safety of automobile and pedestrian traffic. The names of the engineering networks for which the hatches are intended are cast on the surface of the lid:

B - water supply

G - fire hydrant

K - domestic and industrial sewage

D - rain sewer

TS - heating networks

GS - gas network

GTS - city telephone network

Cast iron is the traditional material for making hatches. There are several types of cast-iron sewer manholes, depending on the application. Types of hatches: L, S, T, TM.

Cast iron light hatches, type L, rated load of 1.5 tons, are used in green areas, pedestrian areas.

Cast iron medium hatches, type C, rated load 12.5 tons, are used in parking lots, sidewalks and roadways of city parks.

Heavy cast iron hatches, type T, rated load 25 tons, are installed on city highways with heavy traffic.

Heavy-duty pig-iron hatches, type ТМ, rated load of 40 tons, are installed on the main roads with the movement of heavy freight and public transport.

Cast iron hatches are strong, reliable, durable, resistant to aggressive environments.

As an alternative to cast-iron hatches, public utilities, builders use polymer, polymer-sand, polymer-composite hatches.

In addition to these hatches, hatches of the "floating" type are used. The hatches “float” due to the road surface, that is, it does not rely on a concrete well (like ordinary hatches), but on the road structure. Thus, the destruction of the concrete rings of the manhole is not allowed. Asphalt pavement does not sink around the floating hatch; it is rolled up by machines to level the asphalt to the level with the road surface. The "floating" hatch type "TM" is able to withstand a nominal load of 40 tons, and the hatch type "T" is a rated load of 25 tons, which allows them to be installed on roads with heavy traffic and on ordinary streets. Another plus: the ability to adjust the hatch in height when replacing or repairing the road surface with the help of the housing (support ring).

Manhole manhole must comply with the requirements of GOST 3634-99.

All hatches can structurally consist of two parts - the base (support ring) and the manhole cover or three parts - the support ring, manhole cover and shell (repair insert). Additionally, hatches can be equipped with hinges, locks and rubber gaskets.

Analogs: No. 2283922. The closest analogue is the hatch of the floating type ТМ (D-400) BKMZ, Borisoglebsk.

The problem is the choice of a quality hatch that meets all technical and sanitary standards, since all types and types have their negative and positive sides, and this must be taken into account when designing. The main parameters of the manhole cover of the "floating" type manhole:

- opening degree of at least 100 degrees;

- stiffeners on the inside, anti-slip notch on the outside;

- designations according to GOST and the customer’s logo (optional);

- fastening to the body (support ring) on one side by a hinge or several, and on the other - a locking device.

A utility model relates to a device - a manhole of a manhole of a "floating" type. The hatch is used on water and sewer networks to access the collector and shutoff valves, protect wells and drainage channels from external damage, and ensure the safety of automobile and pedestrian traffic.

The purpose and objective of the utility model is to simplify the hatch structure, make it easier and more convenient during operation, cheaper and without rotating parts. These problems are solved by a new locking device, such as two spring-type locks (latches), a double hinge without a bolt type with a hole for draining water in the hinge device, which prevents freezing of water in the hinge (freezing of the hinge), and a rubber gasket of trapezoidal shape.

The device, the hatch of a manhole of a floating type, is poured out of cast iron of the VCh-40, VCh-45, VCh-50, VCh-60 grade, cast iron grades according to GOST, and the zone of elastic deformations (ductility) approaches the values of steel St-40 and St .- fifty.

The problem is solved as follows: in the cast-iron case (support device) of the hatch, immediately upon pouring, a special recess is provided for entering the hatch cover and for opening it, at the same time a special engagement is provided in the lid, while all types of hinges used in analogues are excluded . A locking device of the type (double lock 6 of the spring type (latch)) is molded together with the lid, has the form of an arcuate shape (latch), one end of which is free and can absorb when closed and deviate by a certain distance when opened.

The hatch meets modern European requirements for strength characteristics, reliability and safety. To increase the service life and reduce the material costs of the enterprise, in order to maintain the wells in good condition, manholes are made of ductile iron with spherical graphite (ductile iron) with a detachable hinge and locking latches that can withstand a load of 25-40 tons. The hatch does not have any mechanical effects directly on the reinforced concrete elements of the well, extending its life. This hatch is ideally suited for replacing old hatches with new ones in connection with a fairly simple and quick installation method, ensuring a stable position of the hatch in line with the road surface. The hatch ensures the safe movement of cars, trucks and public transport on city roads and motorways, in domestic territories.

This hatch consists of three parts: the body (support ring), the hatch cover and the repair insert (shell). The sunroof provides stability and noiseless use due to its design. It is equipped with two spring-type locks (latches), located opposite to each other along the axis relative to the hinge, a double hinge with a drain hole for draining water (precipitation, snow melting), which prevents freezing of water in the hinge (hinge freezing), with a trapezoidal rubber gasket ( hardness of at least 40 units. Shore). In order to avoid metal-metal contact and to prevent flooding of wells with surface water between the body (support ring) and the cover around the circumference, an elastic trapezoidal seal and fixed along the inner perimeter of the side protrusion of the body (support ring) are installed.

The lid is fixed in the housing (support ring) in the closed position by means of a double hinge (without bolts, studs) and two spring-type locks (latches), cast together with the lid. The operability of the hinge device and locks is ensured under all weather conditions, temperatures and road conditions. Locks are wrung out when exposed to force to open the lid. The design of the double hinge provides for disconnecting the cover from the housing (support ring) in the open position, as well as its automatic fixation. The angle of full opening of the lid is at least 100 °. Closing a lid from a locked open position is done by lifting it to release locking in a double hinge and then moving it to a horizontal position.

Opening the lid is carried out by one person with a regular crowbar (hook, mount) in accordance with the rules of operation of water supply and sewage systems.

The design for detaching the cover provides for interchangeability of covers on hatches of the “T”, “TM” type and round storm water inlets.

The hatch is made of ductile cast iron with spherical graphite grade VCH-40.

The operation of the hatch of the manhole of the "floating" type: the repair insert (shell) 2 is installed on the structure of the well. A body (support ring) 1 is placed on the repair insert (shell) 2, with support on the roadway. A cover 4 is inserted into a special recess 3 in the housing (support ring) 1. A special emphasis 5 is provided in the cover 4 (part of a double hinge without bolt type). All this assembled device rolls into the roadway and is ready to go. In the lid 4, from below, there is a device in the form of two spring-type locks (latches) 6, two spring-type locks (latch) of an arcuate shape, one end of which, when closed, dampens and moves away, and when closed, returns to its original place.

To open the hatch cover, it is necessary to pry off the cover with a crowbar or a special key and press it in the opposite direction from the hatch, while the device in the form of spring-type locks (latches) of an arcuate shape (latch) 6 is shock-absorbing, and the cover rises freely.

In fig. 1 presents a General diagram of the body (support ring) of the hatch, where:

1 - body (support ring) of the hatch, 3 - a special recess in the body (support ring) 1, for the cover 4, part of the double bolt-free hinge type 9, 8 - drain hole.

Fig. 2 - repair insert (shell) 2.

Fig. 3, - cover 4 of the hatch;

5 - emphasis, part of a double hinge without bolt type on the cover.

6 - there is a device in the form of two spring-type locks (latch) of an arcuate shape from the bottom of the cover;

10 - hole for sampling gas contamination of wells.

Fig. 4 - elastic trapezoidal gasket 7

The new hatch of the “floating” type “T”, “TM” manhole has many innovations and advantages, as the new device uses two spring-type locks (latch). As a result of this, there are no bolt heads on the surface of the lid, there are no turning parts for fixing the lid, which means there are no elements that oxidize over time and lose their properties. In this case, a special key is not required to open the manhole cover. In the presence of a double hinge with a drain hole without a bolt type, a system of locking and fixing elements and stops is applied when casting in the body (support ring) and in the lid. The manhole cover is easy to open and locks when opened at an angle of at least 100 degrees in a safe position. An elastic trapezoidal gasket made of synthesized rubber is provided between the cover and the body (support ring). The gasket bends around the body (support ring), a lid rests on it to soften, cushion and seal.

This design of two locks, a double hinge and a rubber gasket can be used in all types of hatches, storm water inlets of any material.

The system of elements when working together provides guaranteed tight closure of the hatch, reliability and safety, while increasing the operating life of the hatch, the reliability of the assembly, the integrity of the roadway. This also reduces the time and cost of repairs.

Claims (1)

Floating type manhole hatch, consisting of a body with a part of a double boltless hinge, a repair insert - a shell on which the body is mounted, covers with an emphasis - the other part of a boltless double hinge, and two latches on the bottom of an arcuate spring type, one end of which is free and has the possibility of depreciation when it is closed, while the boltless double hinge has a hole for draining water, and the case is surrounded by an elastic trapezoidal gasket on which the lid is laid.

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