RU99183U1 - HELMET PROTECTIVE - Google Patents

Abstract

 A protective helmet containing an inner liner made of flexible dielectric material, which consists of a star-shaped frame with six beams, at the ends of the beams of which are mounted fasteners to the helmet body, while the fastening elements interacting with the elements are located on the left and right sides of the side surface of the helmet body fastening the ends of the rays of the liner, which are evenly distributed on the side surface of the helmet, leaving open the frontal and occipital parts of the helmet, characterized in that between the canister in the form of an elongated trapezoid is located on the inside of the liner and the helmet body, the lower base of which is located in the occipital part of the helmet, and the upper one is in the frontal part of the helmet, while the canister is fixed with four legs located on the lateral surfaces at an acute angle to the axis of the pencil case at the ends of the four beams of the helmet liner interacting with the corresponding fastening elements, the pencil case is made of flexible dielectric material, and a remote sensing or absence unit is fixed in the pencil case Ia voltage on transmission line conductors.

Description

The utility model relates to electrical engineering and can be used to increase individual electrical safety when performing work on overhead power lines.

A device is known for remote determination of the presence or absence of voltage in electrical installations (see RF patent No. 2294542, July 28, 2005), in which continuous monitoring of the presence or absence of an alternating voltage on the wires of a power transmission line is made, if there is a voltage, it is converted into a direct current signal, which compare with a given threshold signal and the result of the comparison judge the presence or absence of voltage on the wires of the power lines.

However, this invention cannot be used for mechanical protection of the human head.

Also known is a protective helmet designed to protect a person’s head from shock (see RF patent No. 2300727, 04/18/2005), which is equipped with an additional element located in the apex of the housing.

But with the help of this device it is impossible to remotely determine the presence or absence of power lines on the wires, as well as inform the operator about the sudden appearance of voltage.

The task was set - to create a protective helmet that combines mechanical protection of the operator’s head from shock and remote detection of the presence or absence of voltage on the power transmission lines individually for each operator.

The purpose of the utility model is to increase the electrical safety of the operator during operation of power lines with a voltage of 6-10 kV due to remote automatic control of the presence or absence of voltage on the wires of power lines.

This goal is achieved by the fact that the helmet is protective, containing an inner liner made of flexible dielectric material, which is a star-shaped frame with six rays, at the ends of the rays of which are mounted fasteners to the helmet body, while on the left and right sides of the side surface of the helmet body fasteners that interact with the fasteners of the ends of the rays of the liner, which are evenly distributed on the side surface of the helmet, leaving open the frontal and occipital helmet parts. Between the inner side of the liner and the helmet body there is a pencil case in the form of an elongated trapezoid, the lower base of which is located in the occipital part of the helmet, and the upper one in the frontal part of the helmet, the pencil case is fixed at the ends with four legs located on the lateral surfaces at an acute angle to the axis of the pencil case four rays of the helmet liner interacting with the corresponding fastening elements, the pencil case is made of flexible dielectric material; in this case, a block for remote determination of the presence or absence of n voltage into transmission line conductors.

The essence of the new technical solution lies in the fact that the protective helmet combines the mechanical protection of the operator’s head from shock and remote sensing of the presence or absence of voltage on the power transmission wires individually for each operator.

The essence of the utility model is illustrated by drawings, which depict:

Figure 1 is a view of a safety helmet with a cutout to demonstrate a pencil case;

Figure 2 - General view of the pencil case.

Figure 3 is a block diagram of a device;

A protective helmet (Figure 1), containing an inner liner 1, while on the left and right sides of the side surface of the helmet body 2 there are fastening elements that are evenly distributed on the side surface of the helmet, leaving the frontal and occipital parts of the helmet open. Between the inner side of the liner 1 and the helmet body 2 there is a pencil case 3 in the form of an elongated trapezoid, the lower base of which is located in the occipital part of the helmet, and the upper one in the frontal part of the helmet. The case is made of flexible dielectric material for fixing the unit for remote determination of the presence or absence of voltage on the wires of power lines.

The pencil case (Figure 2) is a box on the inside, which is located in the occipital part of the square button 4. In the frontal part is located contact 5, which includes an additional antenna to provide increased sensitivity.

The unit for remote determination of the presence or absence of voltage on the wires of the power lines (Figure 3), contains an antenna 6, an amplifier of the measured signal 7, a converter 8, indicating means 9 and a power supply 10.

The unit for remote determination of the presence or absence of voltage on the wires of power lines is made with the possibility of automatic monitoring of its malfunction, which frees the employee from periodic inspections and excludes the possibility of a person in the danger zone with a faulty device.

Block remote determination of the presence or absence of voltage on the wires of the power lines operates as follows.

Antenna 6 picks up the electromagnetic field and converts the electric component of the electromagnetic field into alternating voltage, which is then amplified by the amplifier of the measured signal 7 and fed to the input of converter 8, in which the alternating voltage is converted into a series of discrete values and processed, as a result of processing the obtained series of discrete values, specific value of constant voltage. Next, a specific value of the obtained constant voltage is compared with a predetermined threshold value of the constant voltage, and if, as a result of the comparison, the obtained specific value of the constant voltage is greater than a predetermined threshold value of the constant voltage, then a signal is generated to turn on the indication means 10 about the presence of voltage on the power lines wires.

The work of the helmet is as follows.

Before using the helmet, the operator removes the helmet and presses the button (Figure 2) 4. This is necessary to check the health of the device, the health is confirmed by an intermittent sound signal emitted by the indicating means (Figure 3) 9. Then the operator checks the helmet for operation, holding one finger for contact 5 (Figure 2) and bringing it closer to the live parts that are obviously under a voltage of 0.22-0.4 kV, while a signal of changing tonality should sound.

After making sure that the helmet is in good working order, the operator puts a protective helmet on his head and fastens it without touching the button 4.

The unit for remote determination of the presence or absence of voltage on the power lines remains in the on state for the entire time the operator is working.

In the process of performing work, the helmet will automatically warn the operator about approaching a dangerous distance to live parts that are under voltage or about the appearance of voltage on closely located live parts of power lines.

Practice has shown that these helmets are easy to operate and have received good reviews from operators.

Claims (1)

A protective helmet containing an inner liner made of flexible dielectric material, which consists of a star-shaped frame with six beams, at the ends of the beams of which are mounted fasteners to the helmet body, while the fastening elements interacting with the elements are located on the left and right sides of the side surface of the helmet body fastening the ends of the rays of the liner, which are evenly distributed on the side surface of the helmet, leaving open the frontal and occipital parts of the helmet, characterized in that between the canister in the form of an elongated trapezoid is located on the inside of the liner and the helmet body, the lower base of which is located in the occipital part of the helmet, and the upper one is in the frontal part of the helmet, while the canister is fixed with four legs located on the lateral surfaces at an acute angle to the axis of the pencil case at the ends of the four beams of the helmet liner interacting with the corresponding fastening elements, the pencil case is made of flexible dielectric material, and a remote sensing or absence unit is fixed in the pencil case Ia voltage on transmission line conductors.