RU2228418C2 - Obstruction set - Google Patents

Abstract

FIELD: protection of transport gate against unauthorized entry to guarded territory. SUBSTANCE: obstruction set has beam with counterweight, supports with rotation axle of beam. Arc-shaped beam with hoisting rope is positioned longitudinally and is linked by flexible joint to leaf of sliding gate transmitting motion for rise or lowering of beam. EFFECT: provision for detention of vehicle and reduction of load on hoisting rope. 2 cl, 2 dwg

Description

The invention relates to the protection of transport gates from unauthorized entry into a protected area and can be used in any industry.

A barrier is known for opening and closing a path for vehicles at level crossings, gates, etc. (AS No. 226671, IPC B 61 l 29/04). The barrier includes a lifting beam and a drive, which includes an electric motor, a worm gear, a master nut, a screw, a carriage, guides and a rocker mechanism. The worm gear through the master nut makes the screw connected to the carriage move. When moving the carriage, the rocker mechanism raises or lowers the beam.

In the known device, the lifting beam on the drive side is pivotally supported on a stationary rack, and on the opposite side the beam is free. In case of an unauthorized collision of a vehicle on a beam, it is deformed relative to the stationary rack in the direction of movement of the vehicle, thereby not ensuring the integrity of the closed gate, which contributes to the breakthrough of the vehicle into the protected area. In addition, the presence of separate drives for the barrier and sliding gates complicates the control circuit.

To ensure the detention of the vehicle and simplify the control circuit in the proposed barrier device, a beam with a cargo rope, mounted in the longitudinal direction, has an arcuate shape. At the free end of the beam, the rope is equipped with a loop for fixing relative to the fixed rack, and the raising and lowering of the beam is carried out by means of flexible communication through a system of blocks with the help of a movable canvas of a sliding gate.

The use of an arcuate beam reduces the longitudinal loads on the cargo rope when exposed to a vehicle.

Figure 1 shows a barrage device; figure 2 - a view of figure 1.

The curved beam of the barrage device is made in the form of a pipe, inside of which a cargo cable is located along the length. This form of timber reduces the magnitude of the longitudinal loads on the cargo rope during the detention of the vehicle [1]. On the counterweight side, the rope is firmly connected to the beam, and on the free end of the beam, the rope has a loop that, when lowering the beam, is worn on a fixed rack, thereby preventing the vehicle from traveling. The sliding door leaf in its upper part is equipped with a bracket with a shock absorber, to which a flexible connection is attached.

Through a system of blocks, a flexible connection is attached to the bar of the barrage device. With the gates closed, the beam is in a horizontal position. With the gate open, the beam occupies a position that does not impede the movement of vehicles. The purpose of the shock absorber is to exclude deformation of the door leaf when the vehicle collides with the bar of the barrage device.

Barrier device for sliding gates 1, equipped with a drive 2, a movable blade 3, contains an arcuate beam 4, a fixed stand 5 with an axis 6 of rotation of the beam, a fixed stand 7, relative to which the free end of the beam is fixed, flexible connection 8, frame 9 with blocks 10, 11, 12 and bracket 13 with a shock absorber 14, mounted on the door leaf. The beam from the side of the rack 5 is equipped with a counterweight 15. Inside the beam along its length there is a cargo rope 16, which is firmly fixed to the beam from the side of the counterweight, and has a loop 17 on the side of the free end of the beam to fix the beam relative to the fixed rack 7.

Barrier device sliding gate operates as follows.

In the mode of authorized passage of the vehicle through the sliding gate 1 by means of the drive 2, the web 3 opens. The bracket 13 through the shock absorber 14 through a flexible connection 8 through a system of blocks 10, 11, 12 rotates the beam 4 around the axis 6 of the fixed rack 5. This frees up the path for the vehicle to travel.

Then the blade closes, and due to the imbalance created by the counterweight 15, the beam with the help of flexible connection is lowered to a horizontal position, while the loop 17 of the cargo rope 16 is worn on a fixed rack 7, thereby blocking the path of movement of the vehicle when attempting unauthorized passage through closed gates .

Specific examples of the calculation of fixed racks, the diameter of the cargo rope are determined by the maximum kinetic energy of the vehicle. So, for example, when detaining a loaded KAMAZ dump truck, a double-row rope with a diameter of 26 mm should be used.

The use of the proposed barrage device provides a delay of the vehicle, simplifies the control circuit of the barrage device.

Literature

1. Beiguganov M.G. Safety of construction works at altitude. - M.: Stroyizdat, 1991, p. 178.

Claims (2)

1. Barrier device consisting of a beam with a counterweight, a rack with an axis of rotation of the beam, characterized in that the arcuate beam with a cargo rope located in the longitudinal direction is connected by a flexible connection through a system of blocks with a sheet of sliding gates transmitting movement to raise or lower the beam . 2. The device according to claim 1, characterized in that the cargo rope from the side of the free end of the beam is equipped with a loop for putting on a stationary rack.

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