RU197005U1 - Projection Mast - Google Patents

Abstract

The utility model relates to the construction of high-rise structures for special purposes, namely, to the designs of floodlight masts designed to accommodate lighting equipment and lightning protection equipment. The searchlight mast contains a bearing barrel, consisting of series-connected sections, on top of which a working platform for lighting equipment and an air terminal are located. Outside, a ladder is fixed along the trunk with a fence made of longitudinal linear and arcuate transverse elements and folding platforms. Each folding platform is pivotally fixed with one edge on the transverse element of the staircase railing with the possibility of rotation between two positions: a non-working one, in which the platform is lifted and fixed behind the fence, and a worker, in which the platform is mounted with the support of the opposite securing edge on the said transverse element. The transverse element of the staircase enclosure, on which the folding platform is fixed, is equipped with limiters for the lateral mobility of the platform. The technical result achieved is to increase the convenience and safety of operation of the searchlight mast, while ensuring manufacturability and low weight and size characteristics of the searchlight mast. 5 cp f-ly, 5 ill.

Description

The technical field to which the utility model relates.

The utility model relates to the construction of high-rise structures, namely, to the designs of floodlight masts designed to accommodate lighting equipment and lightning protection equipment.

State of the art

Searchlight masts are designed to create lighting for large industrial facilities, electrical substations, construction sites, airport terminals, river ports, railway stations, stadiums and other sports facilities, as well as to protect these objects from lightning strikes.

Known floodlight mast containing at least two series-connected sections of angular profiles and mounted on top of the upper section of the searchlight with a fence and lightning rods (see patent RU 2465425, IPC: E04N12 / 08, publ. 10.27.2012). A staircase with a fence in the lower section area and two rest areas serves as an ascent to the searchlight site. The wide-base mast design allows you to place a ladder in the inner cavity of the trunk and form stationary platforms for rest.

The PMS steel searchlight mast, type series 3.407.9-172 "Searchlight masts and stand-alone lightning rods", developed by Sevzapenergosetproekt, 1991 (http://www.gostrf.com/normadata/1/) was adopted as the closest analogue for the claimed technical solution 4293842 / 4293842600.pdf).

The searchlight mast PMS is a spatial rod structure containing a supporting barrel of series-connected trellised sections, on top of which a working platform for lighting equipment and an air terminal are located. Outside, along the trunk, a staircase is fixed with a fence of longitudinal linear and arcuate transverse elements.

The disadvantages of the known design include the complexity and insecurity of climbing stairs, due to the lack of areas for recreation.

The proposed utility model is aimed at solving the aforementioned problem and improving the convenience and safety of operation of the floodlight mast.

Utility Model Disclosure

The mentioned problem is solved due to the fact that in the design of the searchlight mast containing the supporting shaft, consisting of series-connected sections, on the top of which there is a working platform for lighting equipment and a lightning rod, and a staircase fixed outside along the barrel with a fence made of longitudinal linear and arcuate transverse elements , according to the claimed utility model, the ladder is equipped with folding platforms, each of which is pivotally fixed with one edge on the transverse element of the fence stairs with the possibility of rotation between two positions: non-working, in which the platform is lifted and fixed behind the fence, and the worker, in which the platform is mounted with the support of the opposite securing edge on the said transverse element, while the latter is equipped with limiters of lateral mobility of the platform.

Folding platforms serve as recreational areas that can be used by a person climbing stairs to a work platform with lighting equipment or descending along it, which helps to increase the safety and ease of use of the mast.

Each folding platform has two fixed positions. In the working position, the hinged platform is lowered and rests on one transverse element of the staircase guard with two opposite edges: an articulated edge and the opposite one, blocking most of the inner space of the fence. The presence on the supporting platform of the transverse element of the fence of the lateral mobility limiters provides rigidity for fixing the platform in the working position, which contributes to its reliable operation and ensures safe use.

In the inoperative position, the raised folding platform is located along the fence (its longitudinal elements) and is securely fixed to the fence, which also contributes to the safety of climbing and lowering the stairs.

Thus, all the distinguishing features of the utility model work together, ensuring the achievement of the aforementioned technical result, namely: improving the convenience and safety of operation of the searchlight mast. At the same time, the constructive solution of recreational areas is technologically advanced and provides low weight and size characteristics of a searchlight mast.

The folding platforms are spaced apart along the stairs by no more than six meters, which meets the current technical requirements and contributes to the convenience and safety of lifting and lowering.

For the convenience of raising and lowering, it is advisable to perform a folding platform with a handle, preferably slotted.

In order to exclude unauthorized access to the stairs, at least one hinged platform is made with the possibility of installing a lock, fixing it in the working position.

The design of the hinged platforms includes a rectangular frame frame of corner profiles and a deck of corrugated perforated metal sheet placed therein. The presence of through holes in the flooring eliminates the stagnation of sediment on the site.

The element for fixing the hinged platform in the idle position can be installed on the hinged platform or on one of the elements of the staircase fence.

In a specific example of the implementation of the utility model, the locking element for the hinged platform is made in the form of a L-shaped hook mounted on the platform at one end with the possibility of free rotation and made with the possibility of engaging the second end behind the grating of the fence.

The essence of the claimed technical solution is illustrated by an example of a specific implementation, below, and the drawings, which depict:

in FIG. 1 - searchlight mast, general view, isometry;

in FIG. 2 - fragment of a searchlight mast with a folding platform in a raised position;

in FIG. 3 is a view of a hinged platform in an intermediate position;

in FIG. 4 is a top view of a hinged platform in a working position.

in FIG. 5 shows yet another example of a floodlight mast with folding platforms.

Utility Model Implementation

The searchlight mast contains (see FIGS. 1, 5) a supporting barrel 1, consisting of two or more series-connected lattice sections, a lightning rod 2 located at the top of the barrel, a working platform 3 for lighting equipment, and a staircase 4 mounted outside along the barrel with a guard formed from longitudinal linear elements 5 and arcuate transverse elements 6.

Each section of the barrel 1 is a rod spatial structure formed of angular profiles forming racks and braces of the section. All sections are connected in series by means of flange connections. The lower section of the barrel can be made in the form of a truncated pyramid, i.e. with the extension downward, for example as in figure 5.

Staircase 4 is used to lift 3 personnel to the site, performing installation and maintenance of lighting equipment (spotlights).

For safety of ascent and descent, along with the fence, the ladder 4 is equipped with folding platforms 7 (see Fig. 1-2).

The distance between sites 7 does not exceed six meters.

The design of the hinged platform 7 includes (see Figs. 3-4) a frame frame 8 made of corner profiles and a deck 9 fixed therein from a corrugated perforated metal sheet. The presence of through holes in the flooring allows moisture (precipitation) to pass through the closed platform 7, installed in the working position, eliminating the accumulation of moisture, which negatively affects metal structures.

Each hinged platform 7 is fixed at one edge to the arcuate transverse element 6 of the fence by means of hinges 10 and has two fixed positions.

In the working position, the platform 7 is lowered and rests on the transverse element 6 of the fence with two opposite edges (see Fig. 4), overlapping most of the inner space of the fence. To eliminate lateral mobility of the platform 7 in the working position, the transverse element 6 of the fence is equipped with stops 11.

In the inoperative position, the hinged platform 7 is raised and securely fixed to the fence lattice by means of a latch 12 (see Fig. 2). In this position, the platform 7, located along the longitudinal elements 5 of the fence, does not interfere with the ascent (or descent) of the staff on the stairs 4.

The latch 12 can be made in the form of a L-shaped hook, which is installed at one end with the possibility of free rotation in the opening of the flooring 9 of the platform 7 and is configured to engage the second end behind the fence lattice in the raised inoperative position of the platform 7.

To prevent inappropriate use of the stairs 4 and the exclusion of unauthorized people from climbing onto the searchlight mast, at least one hinged platform 7 is capable of installing a lock 13 that rigidly fixes it in a closed position relative to the transverse element 6.

For example (see Fig. 4), one eye for the lock 13 can be made in the longitudinal element of the frame frame 8, and the second eye is formed in the limiter 11 lateral mobility. When closing the platform 7, the holes of the eyes are combined, allowing you to set the lock.

If necessary, rest or for any work hinged platform 7 is lowered, transferred to the working position. For the convenience of raising and lowering the platform 7 is a slotted handle 14.

By equipping the searchlight mast with hinged platforms 7, the convenience and safety of operation and maintenance of the mast are ensured. The design of the folding platforms located inside the staircase railing contributes to the compact design and low mast dimensions.

Claims (6)

1. A searchlight mast comprising a supporting shaft, consisting of series-connected sections, on top of which there is a working platform for lighting equipment and a lightning rod, and a ladder fixed outside along the trunk with a fence of longitudinal linear and arcuate transverse elements, characterized in that the ladder is equipped with folding platforms, each of which is pivotally fixed with one edge on the transverse element of the staircase railing with the possibility of rotation between two positions: idle, in which platform is raised and fixed to the rail, and a work in which the platform is installed with a support of the opposite fastening edge on said transverse member, the latter is provided with lateral stops mobility platform. 2. The mast according to claim 1, characterized in that the folding platforms are spaced no more than six meters apart. 3. The mast according to claim 1, characterized in that each folding platform is provided with a slotted handle for easy lifting and lowering. 4. The mast according to claim 1, characterized in that at least one hinged platform is arranged to install a lock fixing it in the working position to prevent unauthorized access to the stairs. 5. The mast according to claim 1, characterized in that the design of the folding platforms includes a rectangular frame frame of corner profiles and a deck of corrugated perforated metal sheet placed therein. 6. The mast according to claim 1, characterized in that the locking element of the hinged platform in the idle position is made in the form of a L-shaped hook mounted on the platform at one end with the possibility of free rotation and made with the possibility of engaging the second end behind the grating of the fence.

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