RU197979U1 - MEANS OF INDIVIDUAL PROTECTION - Google Patents

Abstract

The utility model relates to personal protective equipment against general industrial pollution, namely to the special clothing of coal mine workers. Personal protective equipment is made of single-layer materials, the upper part of the trousers is made of high-density material in excess of 350 mg / m and is stitched with an insert in the area of step joints, in low-density material up to 200 mg / m, they are connected to the upper parts of the rectangular insert on the front knee, from high-density material over 350 mg / m, and a rectangular insert of the popliteal fossa region, from low-density material up to 200 mg / m, then they are sewn with the lower part of the trousers, which is cut from medium-density material from 200 to 300 mg / m , in the center around the circumference of the lower part of the trousers and on the connection area of the insert on the front of the knee and the rectangular insert of the popliteal fossa region with the upper edge of the lower part of the trousers, strips of retroreflective material are nested. The technical result is the creation of personal protective equipment that provides thermal comfort for workers in mines, face, underground tunnels when performing high-intensity work. 1 s.p. f-ly, 2 ill.

Description

The utility model relates to personal protective equipment against general industrial pollution, namely, to the special clothing of coal mine workers.

Known protective suit miner of the coal mining and shale industry (patent RU No. 95227 publ. 06/27/2010), which is characterized by the fact that it consists of a jacket and the lower part of the suit, the jacket and lower part of the suit are made of cotton polyester fabric, while the jacket is made in the form of a direct of a silhouette with a central side fastener using buttons and loops, and the coquette is made with a one-piece back without a shoulder seam, along the setting line of which there are ventilation holes, and the lower part of the suit is made with a one-piece belt, belt loops, a front fastener, with external patch pockets, with a lining the trousers are shortened by 20-25 cm, and also additional overlays made of material with polyamide threads and reflective stripes are sewn onto the suit. The specified suit prevents the penetration of fine dust into the suit and protects the worker from the action of organic liquids and contaminated water.

The disadvantage of this protective suit is that its design uses only one high-density material, ATLAS fabric, to provide protection against coal dust. This material prevents heat transfer between the human body and the environment. And as a result, when performing work of high intensity, it leads to a violation of the thermal comfort of the employee, an increase in skin temperature and a decrease in working capacity.

A protective suit is known for a worker engaged in thermal mining during oil production (patent RU No. 2656197 publ. 05.31.2018), characterized in that it consists of a jacket and the lower part of the suit, while the jacket is made in the form of a direct silhouette, and the yoke on the shelves and the back made of three layers, two inner layers of which are made of moleskin fabric, and the outer layer is of teflon fabric, the lower part of the sleeve is equipped with a triangular insert of moleskin fabric, ventilation holes are made in the axillary region of the jacket, at least one on a shelf in the patch area, and at least one in the sleeve, the lower part of the suit is made in the form of trousers made single-layer from moleskin fabric.

The disadvantage of this personal protective equipment when used in a coal mine is the presence of ventilation holes through which carbon dust and other contaminants can get on the skin of a person during the work.

A known set of workwear (patent No. 2522950, publ. 04/10/2013), which is characterized by the fact that it consists of overalls and a removable helmet, while the lower parts of the sleeves and legs of the overalls have sealing sections. The overalls are equipped with pads that provide protection against mechanical damage.

The disadvantage of this workwear kit is the presence of sealing sections that disrupt the employee’s heat exchange with the environment and contribute to the accumulation of heat in the employee’s body, in addition, a helmet and additional pads to protect against mechanical damage hamper the employee’s movements and create additional thermal resistance.

Known dustproof suit (patent No. 14813 publ. 10.09.2000) which is characterized by the fact that it consists of overalls with a hood, the lower parts of the sleeves and legs of the overalls have sealing sections, each of which is formed by a part, the lower edge of which is connected respectively to the edge of the sleeve or leg , and designed for tight coverage of the arm or leg, the upper edge is located inside the sleeve or leg.

The disadvantage of this dustproof suit is the presence of sealing areas with a tight coverage of the hands or feet, which exclude the natural ventilation of the clothing area, thereby leading to a violation of the heat balance and the accumulation of heat in the human body, in addition, the presence of a hood also reduces the rate of heat transfer.

A well-known miner suit (type B) for protection against general industrial pollution and mechanical influences (Interstate standard. Occupational safety standards system (SSBT). Miner suits for protection against mechanical impact and general industrial pollution. Specifications. GOST R 12.4.299-2017 Official publication. Moscow. Date of introduction 01.07.2018) adopted as a prototype, which is a men's suit consisting of a jacket and trousers, designed as protective clothing for protection against mechanical stress and general industrial pollution in the mining and coal industries.

The disadvantage of this suit is the lack of elements in it that ensure the reduction of thermal resistance of the miner's suit while maintaining the necessary level of protective properties. In addition, the existing design of personal protective equipment (miner's suit) does not take into account the various degrees of contamination of the sections of PPE during operation. As a result, areas less susceptible to pollution, which should have a lower degree of protection against coal dust, compared to other areas, can be considered as excessively isolated as a result of this, a violation of the thermal comfort of the worker also occurs.

The technical result is the creation of personal protective equipment that provides thermal comfort for workers in mines, face, underground tunnels when performing high-intensity work.

The technical result is achieved by the fact that it is made of single-layer materials, the upper part of the trousers is made of high density material in excess of 350 mg / m ³ and stitched with an insert in the area of stepping joints, in low-density material up to 200 mg / m ³ , they are connected to the upper parts of a rectangular insert on the front of the knee, of high density material over 350 mg / m ³ , and a rectangular insert of the popliteal fossa region, of low density material up to 200 mg / m ³ , then they are sewn with the bottom of the trousers, which is cut from medium material densities from 200 to 300 mg / m ³ , in the center around the circumference of the lower part of the trousers and at the junction of the insert on the front of the knee and the rectangular insert of the popliteal fossa with the upper edge of the lower part of the trousers, strips of retroreflective material are nested. The connection of parts is made by a blind seam.

Personal protective equipment is illustrated by the following figures:

FIG. 1 - pants, front view;

FIG. 2 - pants, rear view, where:

1-belt;

2 - the upper part of the trousers;

3 - insert in the area of stepping seams;

4 - the lower part of the trousers;

5 - a rectangular insert in the knee;

6 - a rectangular insert in the popliteal fossa;

7 - strips of retroreflective material.

Personal protective equipment is made of single-layer materials.

Pants made with a one-piece belt 1 (Fig. 1, 2). The upper part of trousers 2 is made of high-density material over 350 mg / m ³ , for example, FAS fabric (FAS) is sewn with an insert in the area of step joints 3, of low-density material up to 200 mg / m ³ , for example, PHARMA LIGHT 150. The upper part trousers 2 and an insert in the area of stepping seams 3 are sewn down at the bottom with a rectangular insert on the front of the knee 5 made of high density material over 350 mg / m ³ and with a rectangular insert of the popliteal fossa region 6 of low density material up to 200 mg / m ³ , lower parts of the rectangular insert in the knee region 5 and the rectangular insert of the popliteal fossa region 6 are stitched with the lower part of the trousers of medium density material from 200 to 300 mg / m ³ . In the lower part of the trousers 4 at an equal distance from each other, strips of retroreflective material 7 are stitched.

The connection of parts of personal protective equipment is made with a blind seam, the edges are first glued together, then they are sewn from the inside so that the thread does not pass through and does not fall on the outside. Due to this, sufficient seam flexibility and water resistance are achieved.

The technical result is achieved by the fact that the design of personal protective equipment includes elements that reduce the thermal resistance of a set of special clothes, namely:

- inserts in the area of stepping seams and the back of the trousers are made of low density material, this allows you to quickly remove excess heat from the human body and provide rapid evaporation of sweat during intense physical exertion;

- inserts in the upper part of the trousers and inserts in the knee area, made of high density material, protect the worker from coal dust. Moreover, structurally, these inserts are placed on the personal protective equipment in accordance with the topography of their pollution during the execution of work, as well as with the specifics of labor movements performed by the employee in carrying out his activities in the mine;

- inserts of high density material that create resistance to the heat and mass transfer of the worker with the environment, are located in the knee region, i.e. zones with the lowest level of heat emission during physical exertion, thereby providing additional protection without violating heat dissipation, in addition, the proposed high-density material - FAS fabric (FAS) consists entirely of cotton, which does not create a greenhouse effect, removes excess moisture, does not accumulate static electricity , protects against microscopic and ultramicroscopic particles, but does not interfere with gas exchange, including oxygen supply to the skin and carbon dioxide removal.

- the lateral rectangular inserts and the lower part of the trousers are made of medium density material, which allows for intensive heat removal from the employee’s body, promotes moisture removal and at the same time maintains the necessary level of protective properties from coal dust.

- the absence of sealing areas with a tight foot coverage, which exclude natural ventilation of the working space, thereby leading to a violation of the heat balance and the accumulation of heat in the human body;

- the absence of additional linings and two-layer materials provides natural air circulation through personal protective equipment, which is guaranteed to exclude the worker from overheating, because it is well known that with uniform perspiration followed by evaporation of moisture, a decrease in temperature and cooling of the skin occurs;

- the lower part of the trousers, as a rule, when performing work is in special shoes, for example in rubber boots, and at the same time has a higher temperature than the upper part, heat and mass transfer through special shoes is virtually absent and heat accumulation occurs. Trouser legs of the proposed design will be a kind of elevation columns for heat dissipation. The elevation effect is enhanced by the presence of inserts from low-density material, for example, FARMA LIGHT 150 fabric, in the area of step joints and the popliteal fossa, which is located directly above the employee’s special shoes during the use of personal protective equipment.

The additional provision of personal protective equipment with cotton linen will ensure the comfort of the worker and the absorption of excess sweat.

Personal protective equipment provides thermal comfort for coal mine workers when performing high-intensity work, which is achieved only if all the design features are combined.

Claims (2)

1. Personal protective equipment, consisting of trousers with a whole-cut belt, characterized in that it is made of single-layer materials, the upper part of the trousers is made of high density material over 350 mg / m ³ and stitched with an insert in the area of stepping seams, from low density material up to 200 mg / m ³ , they are connected to the upper parts by a rectangular insert on the front of the knee, made of high density material over 350 mg / m ³ , and a rectangular insert of the popliteal fossa region, from low density material up to 200 mg / m ³ , then they are stitched with the lower part of the trousers, which is cut from material of medium density from 200 to 300 mg / m ³ , in the center around the circumference of the lower part of the trousers and at the junction of the insert on the front of the knee and the rectangular insert of the popliteal fossa with the upper edge of the lower part of the trousers, strips of retroreflective material. 2. Personal protective equipment according to claim 1, characterized in that the connection of the parts is made by a blind seam.

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