RU2357057C2 - Illumination mast - Google Patents

Abstract

FIELD: illumination.

SUBSTANCE: invention relates to rescue works and serves to illuminate territories whereon rescue works are performed at night. The proposed illumination mast comprises flood light unit, electrical winch, power supply system and extendable sections. It also incorporates a multi-section cable and pulley elevator with cylindrical telescopic sections, one fixed and several movable. Aforesaid sections-bends enter one into the other with no clearance, and represent the tubes furnished with clamps and support rollers. Inside every said bend, metal cables pass through aforesaid clamps and support rollers. One of the said cables connects the fixed bend with the said electrical winch and the second movable bend, the base of which has a safety clip bearing the support roller. The rest cables are jointed to the base of each movable for them to be jointed to the nest bend via the support roller. Note that the tops parts of all bends are provided with guide rings.

EFFECT: efficient illumination of large areas, mobility, smaller sizes and weight.

2 cl, 1 ex, 6 dwg

Description

The present invention relates to emergency rescue operations (ASR) and can be used for lighting at night (dark time), zones (section, territory) during rescue operations in this section.

A known pin antenna according to AS 1775771, H01Q 1/12, consisting of coaxial tubular elements and a rod of the same length, as well as a coaxial cable, the central conductor of which is connected to the lower end of the second tubular element through a pair of on-board diodes. All tubular elements and the rod are connected in series and according to insulated conductors located inside the tubular elements. However, the use of this antenna as a lighting mast is difficult or requires a radical alteration of the antenna.

Known mast base, especially for temporary installation of the mast on AS 2110657, E04N ^12/22. The invention is primarily used in the telecommunications industry. The base of the mast, in particular the mast for temporary installation, contains a housing having upper and lower attachment points extending in the lateral direction of the support legs, which are formed by upper and lower shoulders and the outer ends of each of which have a support leg. This invention is also not technologically advanced when used as a lighting mast.

The closest analogue can be a retractable device according to AS 2265111, Е04Н 12/00. It refers to retractable rigid structures of a given profile and can be used as a mast for sailing ships, an arrow for lifting devices, propeller blades, and as a lighting mast.

The retractable device is a rolled up elastic tape equipped with clutch elements at the edges, housed in a case equipped with a clutch key, in which the edges of the tape are brought together and attached to each other by clutch elements when the tape is pulled out of the case. As a result, a retractable device of a given configuration without sections was created. However, the height of this mast cannot be significant for lighting a large area.

The aim of the invention is “Lighting mast”, containing a block of searchlights, an electric winch, power supply system and extendable sections, is to effectively illuminate a large area with mobility, compactness, light weight of the mast.

This goal is achieved due to the fact that the lighting mast is equipped with a multi-section cable block elevator with telescopic cylindrical sections that gaplessly enter each other, each of which consists of a pipe, base and clamp and carries supporting rollers mounted on them, through which equal sections of the length of metal cables interconnecting adjacent sections, as well as due to the fact that the block of spotlights is equipped with a mechanism for turning 350 ° (± 175 °) on a horizontal plane 120 ° (± 60 °) in a vertical plane bones; the pipes have cutouts for the passage of cables in them, and on the inner surfaces of the sections guide dowels are installed, which enter the guide grooves located in the upper part of the sections.

Lighting mast example

Figure 1 shows the main part of the mast half in the deployed state, figure 2 - the second movable elbow (section) of the mast and section AA, figure 3 - the third movable elbow and section BB, figure 4 and 5 - respectively, the fourth and fifth knee of the mast. Figure 6 gives a General image of the mast in a collapsed (lowered) state.

The lighting mast consists of one fixed and several movable elbows, falling into one another. The first (fixed) elbow has a support roller 1, a pipe 2, a clamp 3; the first elbow includes the pipe 4 of the second elbow, and accordingly the pipe 5 of the next elbow. Support clips 6 are installed on the clamp 3 through which the metal cable 7 passes. The pipe 2 is equipped with a plug 8 and additional supports with a roller 9 through which the cable passes from the winch 10; the second elbow (FIG. 2) also has a base, a bracket 12 mounted on it, supporting the support roller 13, and the pipe 14. A cable 15 connects the second and third elbows. To ensure its rigidity, a bandage 16 is installed in the upper part of the third bend pipe using a rivet 17, in the lower part of the pipe 18 it rests on the base 19, to which a cable 15 is attached using screw 20. To drain rainwater in the base 19 and in the bases of other bends there are drainage holes 21.

The fourth (FIG. 4) and fifth (FIG. 5) elbow are arranged in a similar manner; they carry support rollers 22 and 23, and guide rings 24 in the upper part.

The sections (knees) of the elevator are connected through support rollers by cables laid inside the sections. The first stationary section and the movable section are interconnected by a cable of a hoist hoist 10.

Sections are installed in each other on guide rings and bases. On the inner surface of the sections installed vertical guide keys 25, which are included in the guide grooves of the upper rings and do not allow the sections to rotate around a vertical axis.

On the upper section, the mounting flange 26 of the turning mechanism 27 of the spotlights 28 is attached.

The sections are raised (lowered) by means of an electric winch 10. When winding the cable onto the winch, it is shortened and, through the support roller 1, pushes up the second movable section (knee). At the same time, the next movable section extends upward, etc.

Power supply 29 includes:

- power supply winch of the mechanism for lifting (lowering) the block of spotlights;

- power supply circuit of the mechanism for turning the spotlights;

- power supply circuit of searchlights.

For free passage of cables, pipes 2, 14, 18 and others are equipped with cutouts 30, 31.

The design of the second movable elbow differs from the others in that it has a cutout 31 on the side of the base fastening, which serves to enable rotation of the roller 13 fixed to the base 11. To prevent the cable from slipping from the roller 13, a safety bracket 12 is fixed on the same axis with the pulley .

The design of all other movable knees is the same and corresponds to Fig.3. A retaining ring 16 is pressed on and attached to the upper end of the pipe 18, in order to stiffen the knee at the mounting location of the clamp. A window is made in the retaining ring and the pipe, which serves to exit the cable to the roller. At the other end of the pipe, an eccentric base 11 cast from an aluminum alloy is fixed.

The eccentricity of the base is made in order to obtain between the knees of the telescopic mast a space with a width of 4.5-5 mm for the passage of the cable.

The eccentricity of the ring and the base is the same and when assembling the mast is installed in one direction. In the ring on the inner surface there is a groove that serves to pass the dowel, which is reinforced with rivets on each knee; it is designed to prevent one knee from turning relative to the other. To reduce the friction of the output of the movable elbows, a groove is made in each upper eccentric ring in which a fluoroplastic insert is installed.

It has been experimentally established that the territory is most effectively illuminated when a block of spotlights can be rotated in the horizontal plane by 350 ° (± 75 °) and in the vertical -120 ° (± 60 °).

A steel cable with a diameter of 5 mm is attached and laid in the groove to the base of each movable knee.

The branches of the cable should be exactly the same to ensure the same load on the branch.

The electric winch 10 is an electric motor with a gearbox, an electric brake and a drum for winding a cable, with a horizontal arrangement, mounted in the housing.

The remote control is mounted in a plastic case on which there are three buttons:

- a button for controlling the mechanism of lifting (lowering) the moving knees of the mast;

- a button for controlling the mechanism for turning the block of searchlights in a horizontal plane by 350 °;

- a button for controlling the mechanism for turning the block of searchlights in a vertical plane by 120 °.

The lifting mast of the lighting mast includes an electric winch with a drum for winding the cable and with an electric brake, a system of cables and rollers.

The power of the lighting mast (220 V; 50 Hz) is carried out from a stationary generator through the X7 connector (32 A) or from an external power source (220 V; 50 Hz; 32 A). After connector X7, power is supplied to the power supply. The power supply to the control unit of the lift mechanism, the rotation mechanism of the unit, projectors occurs through the power supply.

When deploying the mast, power is supplied to the power supply. Using the remote control (RC) using the lift mechanism control button (set the button to the “lift” position), you can start lifting the mast. The electric winch begins to rotate clockwise, while the cable is wrapped around the drum, which ensures the simultaneous exit of all the moving knees of the mast.

If during the deployment of the mast the power supply to the electric winch is stopped (release the "lift" button), the electric brake of the winch is switched on and the mast lift stops, the mast stops and remains in this position until the "lift" button is pressed.

When the mast reaches its maximum height, a limiter key mounted on the second knee will abut against the fixed knee liner and further rotation of the winch clockwise will become impossible. At the same time, an electric brake is turned on. It engages with the drum of winding the cable and stops it, this allows you to keep the mast in the deployed state.

When folding the mast, power is supplied through the power supply. With the help of the remote control, the mast control button is started (the button is set to the “descent” position), the mast is collapsed.

At the same time, an electric brake is turned on. The electric brake disengages from the clutch with the cable winding drum and releases it. The electric winch starts to rotate counterclockwise, while the cable is reeled up from the drum. At the same time, under the influence of the dead weight of all movable knees, the mechanism of rotation of the block of searchlights and the searchlights themselves, the knees will begin to enter one another until the collars on them converge. After convergence of the clamps, release the “release” button.

If, when folding the mast, turn off the power supply to the electric winch (release the "release" button), the winch's electric brake will turn on and the mast winding will stop, as a result of this self-lowering of the mast, the mast will stop and will remain in this position until you press the shutter button.

Operation with the control button for the mechanism for turning the block of spotlights in the horizontal plane.

The button is used to rotate the block of spotlights in a horizontal plane by 350 °. This button sets the spotlight block in the desired position in the horizontal plane.

When the button is off, the rotation mechanism is set to its original position.

The button has two positions ◀ and ▶.

When the button is pressed in the ▶ position, the floodlight unit is rotated by a turning mechanism clockwise 175 ° until it stops. When the spotlight unit reaches the stop, release the button.

When the button is pressed in the ▶ position, the spotlight unit is turned 175 ° counterclockwise until it stops. When the spotlight unit reaches the stop, release the button.

After work, use the button in ◀ or in ▶ to set the spotlight unit to its original position.

Working with the control button for the mechanism for turning the block of searchlights in a vertical plane.

The button is used to rotate the block of spotlights in a vertical plane by 120 °. This button sets the spotlight unit in the desired position in the vertical plane.

When the button is off, the rotation mechanism is set to its original position.

The button has two positions ◀ and ▶.

When the button is pressed in the ▶ position, the spotlight unit is rotated by a rotation mechanism 120 ° in the vertical plane to the stop. When the spotlight block reaches the stop, release the button or, without reaching the stop, set the spotlight block in the desired position.

When the button is pressed in the ◀ position, set the spotlight unit to its original position.

The telescopic lighting mast is installed on special vehicles or on the ground and provides illumination of objects and territories during emergency rescue, repair and restoration and other types of work in the dark.

TECHNICAL SPECIFICATIONS

The maximum power of the spotlights, kW - 3.0.

Number and power of floodlights, pc. KW - 4 × 0.5 (2 × 1.0; 2 × 1.5).

Type of floodlights - halogen, type L01500 (ZT).

Electrical connection diagram - with simultaneous inclusion.

The angle of rotation of the block of spotlights:

in the horizontal plane, hail - 350;

in the vertical plane, hail - 120.

Zero position of the rotation gear reducer, city .:

horizontal - ± 175;

vertical - +120;

The angular velocity of rotation in all axes, degrees / sec - 8.

Remote control of the spotlight unit from the control unit

Overall dimensions of the mast (L × B × H), mm:

in working position 700 × 190 × 6500 in transport position 700 × 190 × 2100 Weight, kg, no more 40 Supply voltage of searchlights, V 220 Supply voltage of the mechanism for raising the spotlights, V 220

Supply voltage of the mechanism of rotation of the block of searchlights, V27

The composition includes:

- block of searchlights 1;

- the mechanism of rotation of the block of spotlights 2;

- telescopic cable lift 3 with electric drive;

- electrical equipment;

- installation elements.

A block of spotlights is designed to create a luminous flux when illuminating objects.

It consists of two searchlights, each with a power of 1.5 kW, mounted on a traverse of the turning mechanism 2. It is allowed to install projectors of lower power - 2 × 1.0 kW or 4 × 0.5 kW.

The mechanism of rotation of the block of searchlights ensures the directivity of the light flux to the object due to the rotation of the block of searchlights in the horizontal plane by 350 ° (± 175 °) and in the vertical - 120 ° (± 60 °).

As the drive of the rotation mechanism, a rotary device of the PP-6 type was used.

Prototypes of the mast were made based on a car and on the ground, which confirmed all the declared characteristics. The test results of the prototypes showed the high efficiency of the lighting mast, made according to this application.

Claims (2)

1. A lighting mast containing a block of spotlights, an electric winch, a power supply system and pull-out sections, characterized in that it is equipped with a multi-section cable-block elevator with cylindrical, one fixed and several movable, telescopic sections - knees, gaplessly entering into each other and made in the form of pipes equipped with clamps and support rollers through which metal cables pass inside each knee, one of which connects the fixed knee to the electric winch and to the second th knee, the base of which is provided with a trigger guard, the carrier support roller, and the remaining wires attached to the base of each of the mobile knee respectively for subsequent connection to the next through the knee support roller, wherein the top of all the knees are guide rings. 2. The lighting mast according to claim 1, characterized in that the block of searchlights is equipped with a turning mechanism of 175-525 ° on a horizontal plane of 60-180 ° in a vertical plane, and the section pipes have cutouts for the passage of cables in them, and on the inner surfaces sections installed guide keys, which are included in the guide grooves made in the guide rings located in the upper part of the sections.

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