RU2681003C1 - Drawbridge - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to bridge structures and, in particular, to movable bridges that provide navigation. Drawbridge contains supports, horizontally positioned span connections and the bridge layout mechanism, and it is equipped with an additional element of the span connection, at least one bridge span is detachable to move in a vertical plane, an additional element of the span joint is installed above the span joint, while the ends of the split span connections are made with the possibility of docking with an additional element of the span of the connection on both its sides.

EFFECT: higher convenience in use.

1 cl, 2 dwg

Description

The invention relates to bridge structures and, in particular, to drawbridges for shipping.

The Varvarovsky bridge in Nikolaev is known consisting of spans, the middle of which is made with the possibility of rotation 90 degrees relative to the vertical axis of the support with a position along the riverbed and river banks (zastropi.narod.ru)

Known rotary bridge in Valencia, containing a span made of two segments, with the possibility of lifting movable segments 90 degrees relative to the water line (library.kiwix.org)

A drawbridge is known, formed by abutments, bridge supports and retractable spans, and the supports are movable in the vertical direction and the upper parts of the supports equipped with rollers can be fixed in two positions: the original - at the bottom of the reservoir on the foundations of the supports and the worker - at the mark of movement of the retractable spans (RF patent No. 2231592, E01D 15/10, 2004)

The Yoshima Ohashi bridge is known, connecting the cities of Matsue and Sakaiminato (Japan), containing a span connection in the form of an arch, the height of which allows large ships with a high superstructure to pass under it (batona.net Crazy bridge in Japan)

The famous Millennium Bridge (Gateshead) over the Tyne River, made in the form of a base of two steel arches, one of which is located above the water surface at a height of 50 m, and the other is horizontal and serves to move pedestrians and cyclists, and the arches are located V -shaped, the arches of the arches are connected by cables and are made to rotate around the axis by 40 degrees (en.wikipedia.org, www.graeme-peacock.com Millennium Bridge (Gateshead)

Closest to the claimed device is a drawbridge, including coastal supports, a span horizontally located during the layout of the bridge, and a bridge layout in the form of a vertically mounted articulated parallelogram located on one of the supports (patent SU No. 1813136, E01D 15 / 08,1991)

A disadvantage of the known devices is the inconvenience in use, which consists in the impossibility of independent passage of vehicles and pedestrians across the bridge and the simultaneous passage of ships under the bridge or in the case of connecting bridge span in the form of a high arch, significant inconvenience and difficulties in overcoming the bridge arch by road.

The technical result is to increase ease of use.

The technical result is achieved by the fact that the drawbridge contains supports, horizontally spaced span connections and a bridge spanning mechanism, and it is equipped with an additional span connection element, at least one span bridge connection is detachable, with the ability to move in a vertical plane, an additional span connection element is installed above the span connection, while the ends of the detachable span connection are configured to dock with an additional span element th connection on either side.

The invention is illustrated by graphic materials, where in FIG. 1 shows a diagram of a drawbridge with horizontally lowered movable connecting elements of the span connection, side view; in FIG. 2 is a side view of a drawbridge with raised adjustable span connecting elements connected to an additional span connecting element.

The drawbridge contains supports 1 and horizontally spaced span connections 2. At least one span connection is made detachable, consisting of two movable connecting elements 3 connected with a vertical bridge wiring mechanism.

The vertical bridge wiring mechanism can be located on the supports 1 or in the supports 1, under adjacent span connections 2 or as an independent unit, for example, on the coastline.

The drawbridge is equipped with an additional element of the span connection 4 mounted on the supports 5. The supports 5 of the additional element of the span connection 4 can be mounted on the supports 1 or on adjacent span connections 2 of the bridge.

An additional element of the span connection 4 is installed above the detachable span connection. The ends of the two movable connecting elements 3 detachable span connections are made with the possibility of docking with an additional element of the span connection 4 on both sides of it due to the locking rods, restrictive platforms or due to rigid fixation in a predetermined position of the vertical bridge wiring mechanism.

The drawbridge works as follows.

In the absence of navigation on the waterways, in cases of seasonal or temporary closure of navigation, as well as in the winter season, the bridge operates in undiluted condition.

Automobile transport and pedestrians can move along horizontally located span connections 2 and movable connecting elements 3. In this case, small and small vessels can pass under an undiluted bridge.

In the seasons with open navigation, when it is required to ensure passage of vessels with a high deck superstructure, the vertical bridge wiring mechanism raises the movable connecting elements 3 of the detachable span connection and joins them with the additional element of the span connection 4 on its both sides due to locking rods, restrictive platforms or behind the account of rigid fixation in a predetermined position of the vertical bridge arrangement.

In this case, vehicles and pedestrians overcome the section of the bridge of the detachable span connection through the movable connecting elements 3 and an additional element of the span connection 4.

Simultaneously with the movement of vehicles and pedestrians on the bridge, under the span bridge span, ships with a high deck superstructure can pass.

The technical result to improve ease of use is achieved by the fact that the drawbridge can be operated without blocking the movement of vehicles and pedestrians and without blocking the movement of vessels with a high deck superstructure, in parallel and independently.

The drawbridge provides two workable travel patterns. One scheme provides the simultaneous movement of vehicles and pedestrians in conjunction with small boats with an uncovered bridge, and another scheme provides the simultaneous movement of vehicles and pedestrians in conjunction with vessels with a high deck superstructure with a drawn bridge.

This drawbridge does not block the movement of the bridge, even if it is being bred. The movement of the bridge during its dilution is carried out by adjustable connecting elements of the bridge and by an additional element of the span connection installed above the adjustable connecting elements.

Claims (1)

A drawbridge containing supports, horizontally spaced span connections and a wiring mechanism, characterized in that it is provided with an additional span connection element, and one span connection is detachable with the formation of two vertically adjustable elements connected to the wiring mechanism, with an additional span element the connection is placed on the supports above the detachable span connection, the ends of the adjustable elements of which are made with the possibility of docking with the sides of the additional The leg span element compound to overcome the releasable compound span vehicles and pedestrians.

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