RU2554619C1 - Device for vehicle forced stop - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: proposed device is composed of the casing whereat the plates with tenons are secured and connected in pantograph-like manner. Said plates as-folded are locked by retainers while at fall they are released to be instantly unfolded by four helical springs.

EFFECT: possibility of forced stop.

1 dwg

Description

The invention relates to means for blocking unauthorized passage of vehicles and allows for the possibility of a forced stop.

A device is known that contains two supports at a distance from each other not less than the width of the vehicle and a barrier in the form of a cable installed across the passage onto the supports, equipped with uprights installed behind the supports along the vehicle. Platforms with the possibility of overturning are articulated on them, metal structures in the form of “hedgehogs” falling onto the roadway are freely placed on the platforms. When tipping platforms, the cable installed across the passage has a connection with the latches that keep the platform from tipping over, and the distance between the supports and racks is selected depending on the set vehicle speed during ramming (patent No. 2333308 of 09.10.2008, IPC E01F 13/10).

The known device has several disadvantages that do not allow you to instantly stop the vehicle, as it is shifted to the side, outside the vehicle.

In addition, the device must be retuned for each type of transport, which will not be known in advance.

Close in technical essence and the achieved result is a choke for vehicles (patent No. 2278198, published 06/20/2006, IPC E01F 13/12, F41H 11/08).

The disadvantage of the prototype device is the lack of a trigger device and devices for monitoring the pressure of compressed air in the cylinder, which can lead to excessive or insufficient departure of the fence, which reduces its effectiveness.

The technical result is an increase in the efficiency of the device, a decrease in its dimensions.

The technical solution of the claimed object lies in the fact that the device consists of a housing on which plates with spikes are attached, connected according to the pantograph scheme, and when the condition is folded, the plates are fixed with clamps, and when falling in front of a vehicle delayed, the plates are released by sliding with the help of four coil springs.

The drawing shows the proposed device, which contains a housing base - 1, plates - 2, clips - 3, springs - 4, spikes - 5, handle - 6, clamps - 7.

The device operates as follows.

On the base body 1 (plywood 10 × 300 × 500), plates 2 (steel, duralumin 2 × 30 × 300) are mounted, connected in the center and at the ends with the help of hinges 5, which are simultaneously spikes. In the assembled state, the central plates are tensioned by the springs 4 and fixed by the clips 3. At points A, holes with a diameter of 10 are drilled in the base and the fingers of the clips 3 are inserted. Clamps 7 are installed there, representing the spontaneous opening of the structure.

In the assembled state, the plates 2 are fixed by installing the clips 3 in the recesses. The pins of the retainers 3 peep out from the bottom of the base by 40 + 50 mm. When lowering the base to the surface, the clamps 7 are released, the fingers knock out the clamps 3 and the device under the action of springs 4 instantly opens.

If it is necessary to delay the car, the device is taken by the handle 6 and lowered from a height of ~ 60-70 cm in front of the car. In this case, the latches 3 and the springs 4 open the folded plates 2 with spikes 5 to a length exceeding the track of the vehicle.

The number of plates can be increased, while the width of the blocked space increases.

To open the device, coil springs are used. According to Hooke’s Law: the elastic force arising in the body during its deformation is directly proportional to the magnitude of this deformation

Fupr = klxl,

where k is the coefficient of elasticity or spring stiffness;

x is the elongation of the spring or the magnitude of the deformation of the spring;

Fupr - spring force.

In order for an elastically deformed body (spring) to perform work, it is necessary to perform work on its deformation. In this case, an elastically deformed body stores potential energy

P = A,

P is the potential energy of an elastically deformed body;

A - work done during its deformation;

A = FΔ1 / 2,

Δ1 is the elongation of the spring under tension;

F is the applied force.

Thus, the more effort we stretch the spring, the more we store energy, which is used to extend the sections of the device.

In this case, cylindrical springs made of spring steel have good characteristics.

With the increase in the number of sections, it is necessary to increase the compression force of the spring. The device instantly opens under the action of a compressed spring (Hooke's law: Fupr = klxl), has smaller dimensions, weight, does not need a source of compressed air, is always ready to work.

Also, to open it you need a perfectly flat surface.

The device is easy and safe to use. In order to bring it into action, one person is enough.

Device specifications

Length in open state, m - 3.0

The distance between the spikes, m - 0.15

Weight, kg - 1.5-3.0

The device is not constantly in working condition, so it cannot be assembled as a danger to the car.

It is quite effective in operation and operation.

The device can be operated both indoors and outdoors.

Devices can be made of both light alloys of metals, such as duralumin, and structural steel.

When folded, it has small dimensions (0.3 × 0.6 m) and weight from 1.5-3 kg.

It can be used on roads with asphalt and unpaved surfaces.

To bring it into working condition, it is enough to sharply lower the device to the surface in the right place from a height of about 0.5-0.7 m, while the latches (3) come out of the grooves, and the device opens under the action of tightening springs (4). Structurally, the device consists of a base body (1), on which hinge mechanisms assembled from narrow plates (2) connected by a pantograph scheme are attached on both sides. Swivel joints are simultaneously studs (5), which serve to puncture tire wheels.

Thus, this device is an effective tool for blocking the passage of vehicles, the main advantage of which is the speed of use, compactness, mobility.

Claims (1)

A device for the forced stop of vehicles containing plates on the base, spikes, opening mechanisms, characterized in that the device consists of a base body on which plates with studs on both sides are attached, connected according to the pantograph diagram, having two coil springs on each side and one latch on each side, and in the center there is a handle for carrying and actuating the device.

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