Forced air supply suit

Abstract

The utility model relates to personal protective equipment, namely to full-size isolating pneumatic overalls with forced ventilation, designed for the comprehensive protection of the skin and respiratory organs of a person under conditions of exposure to aggressive external environments (chemical, biological, radioactive, aerosol). The overalls with forced air supply are made of a multilayer non-woven material, contain two one-piece parts of the overalls without side seams with sleeves and trousers, a visor with a viewing angle of 180°, an air supply system, an elastic waistband, a manhole located on the front left part of the overalls with a transition to a helmet, closed by a valve bar, a nipple for connection to an air supply hose, while it is equipped with a helmet with the said visor, a frame and a molded balaclava made of needle-punched non-woven fabric with through ventilation holes,an insulating tape for sealing the thread seams and the junction of the glass with the helmet, while the sleeves and trousers at the bottom are equipped with reinforcement and an elastic band, the nozzle is connected by means of a hermetically sealed fastening to an internal reservoir made of a filtering non-woven material, and the helmet is equipped with an elastic cord with a clip for adjusting the size of the headband, an elastic band for fixing under the chin, an elastic band is stitched along the seam connecting the helmet to the neck, and the visor is made of optically transparent semi-rigid polyvinyl chloride with a double-sided anti-fog coating. The technical result consists in increasing the reliability of protection due to the uniform distribution of the supplied air through the internal reservoir made of filtering non-woven material, providing additional filtration of the supplied air and effective ventilation of the scalp, improving thermoregulation and reducing the risk of overheating due to the diffusion properties of the material and an organized air flow,low weight (≤0.6 kg) and high tightness of the design. 3 ill.,

Description

[0001] Technical field

[0002] The utility model relates to the field of light industry and the production of personal protective equipment (PPE), in particular to the segment of special protective clothing - full-size insulating pneumatic overalls designed to ensure comprehensive safety of the skin and respiratory organs of a person under conditions of exposure to aggressive external environments.

[0003] Technology Level

[0004] The prior art describes "Protective Clothing" (patent JP2017210696A), made of non-woven material and designed to protect against harmful pollutants. The suit is connected to an external air supply. However, supplying air to the lumbar region reduces ventilation in the under-helmet space and may cause fogging of the helmet visor. The suit is intended for single use.

[0005] The "Protective Anti-Epidemic Clothing" (patent CN111513376A) is designed for work in high-risk biological environments. External air supply and exhaust are provided by several pumps, each containing a battery, processor, and control buttons. The helmet is equipped with an adjustable bracket that allows the distance between the protective transparent mask and the wearer's face to be adjusted. Disadvantages include the complexity of the overalls and discomfort from the constant flow of air to the face.

[0006] The "Protective Complex" (patent RU43771) is a prototype made of non-woven material and designed to protect the respiratory system, eyes, and skin from radioactive and chemically toxic substances during repair, installation, dismantling, decontamination, and other work. The suit is equipped with an air pump attached to the wearer's back under the suit and filter elements located outside the suit. A continuous stream of air into the under-helmet space during prolonged use reduces the ergonomics of the protective complex, causing discomfort to the user.

[0007] The essence of the utility model

[0008] The objective of the utility model is to develop an insulating pneumatic suit made of non-woven material, aimed at ensuring the safety of the user at work.

[0009] The technical result is achieved by using a lightweight non-woven material that combines filtration and diffusion properties, the presence of an internal reservoir made of filter non-woven material that evenly distributes the air flow, and a viewing glass with an anti-fog coating with a 180° viewing angle.

[0010] The technical result is achieved in that the overalls with forced air supply, made of a multilayer non-woven material, containing two one-piece parts of the overalls without side seams with sleeves and trousers, a viewing glass with a viewing angle of 180 °, an air supply system, a waist elastic band, a manhole located on the front left part of the overalls with a transition to a helmet, closed by a valve bar, a nipple for connecting to the air supply hose, characterized in that it is equipped with a helmet with the said viewing glass, a frame and a molded liner made of needle-punched non-woven fabric with through ventilation holes, an insulating tape for sealing the thread seams and the joint of the glass with the helmet, while the sleeves and trousers at the bottom are equipped with reinforcement and an elastic band, the nipple is connected by means of a hermetically sealed fastening with an internal reservoir made of non-woven filter material,Moreover, the helmet is equipped with an elastic cord with a clip for adjusting the size of the headband, an elastic band for fixing under the chin, an elastic band is sewn along the seam connecting the helmet to the neck, and the viewing glass is made of optically transparent semi-rigid polyvinyl chloride with a double-sided anti-fog coating.

[0011] Disclosure of Utility Model

[0012] The forced air supply suit is made of multi-layer high-tech non-woven material that combines filtration and diffusion properties, and consists of the following parts (Fig. 1-3):

[0013] 1 - Sight glass

[0014] 2 - Frame

[0015] 3 - Laz

[0016] 4 - Reinforced edge

[0017] 5 - Fitting

[0018] 6 - ​​Insulating tape

[0019] 7 - Elastic waistband

[0020] 8 - Elastic

[0021] 9 - Inner tank

[0022] 10 - Molded balaclava

[0023] 11 - Elastic cord for adjusting the headband size

[0024] 12 - Elastic band for fixing under the chin

[0025] 13 - Vents

[0026] 14 - Sealed fastening of the tank to the fitting

[0027] The product design consists of the following parts:

[0028] two one-piece pieces of overalls (without side seams), additional reinforcement 4 and elastic band 8 at the bottom;

[0029] sleeves with additional reinforcement 4 and elastic at the bottom 8;

[0030] Helmet with 2 internal frame, 1 visor, and air supply system. Elastic is stitched along the seam connecting to the neck;

[0031] The belt on the back section is pulled together with an elastic band sewn on the inside - waist elastic 7;

[0032] on the front left side of the suit there is a vertical opening 3 (with a transition to the helmet), closed with a flap;

[0033] All connections are made with thread stitching and sealed with special tape.

[0034] The product weight does not exceed 0.6 kg.

[0035] The overalls are made of multi-layer high-tech non-woven material that combines filtration and diffusion properties.

[0036] Non-woven fabric obtained by high-speed melt spinning of high-density polyethylene followed by thermal bonding of fibers, has chemical resistance, hydrophobicity and anti-static properties.

[0037] Visor Lens 1 is made of optically clear semi-rigid polyvinyl chloride with a double-sided anti-fog coating. It provides high mechanical strength, chemical resistance to acids and alkalis, and dielectric properties, protecting the face from sparks and splashes. The material is self-extinguishing, moisture-resistant, and chemically inert, boasting a low thickness and weight. The shape of the visor lens 1 provides maximum visibility without distorting the surrounding area. The viewing angle is 180° without rotating the helmet, allowing the user to freely turn their head inside the helmet without losing visibility. The increased under-mask space allows the use of a respirator for additional respiratory protection.

[0038] The helmet frame 2 (Fig. 2 - side view, Fig. 3 - helmet section) is made of lightweight and ergonomic materials - molded non-woven fabric, elastic bands and plastic. The frame 2 serves as a base for attaching the glass 1 and the air supply system with the nozzle 5. Also, an intercom or other gadgets for the user's needs can be placed on the frame 2. The molded balaclava 10 has through ventilation holes 13 for ventilation of the user's scalp, is adjustable in volume with an elastic cord 11 for adjusting the size of the headband with a clip, and is also equipped with an elastic band for fixation under the chin 12.

[0039] Manhole 3 consists of a zipper and a placket. The size of Manhole 3 allows the user to easily put on and take off the suit.

[0040] The sleeve and leg hems are equipped with a reinforced edge (4)—a duplicating element. This reinforced edge (4) protects the more vulnerable areas of the overalls from accidental damage and extends the wear life of the garment.

[0041] Nipple 5 connects the air supply hose to the suit. Air supplied through the hose enters the suit's internal reservoir 9, which is made of non-woven filter material. This system ensures comfortable air supply for the user—the flow is evenly distributed within the undersuit and also provides additional filtration of the supplied air, which is important in unpredictable emergency situations.

[0042] Insulating tape 6 seals all joints of the suit - both the connecting seams and the joint between the glass 1 and the helmet.

[0043] The elastic waistband 7 on the back increases wearing comfort (fixes the product on the figure) and indicates the location of the waist for attaching a belt with tools, etc.

[0044] Elastic bands (8) are located along the sleeve and leg hem, as well as along the seam where the helmet meets the neck. The use of elastic bands (8) provides additional insulation for the suit and simplifies the use of additional arm and leg protection.

[0045] After decontamination, the suit can be reused.

[0046] Overall construction:

[0047] Increases user comfort by evenly distributing the supplied air throughout the undersuit space through an internal reservoir made of non-woven filter material.

[0048] Improves thermoregulation and reduces the risk of overheating thanks to the diffusion properties of the material and organized air flow.

[0049] Provides additional filtration of the supplied air in the internal tank, which is critical in emergency conditions.

[0050] Provides effective ventilation of the user's scalp due to the through holes in the molded balaclava.

[0051] It has a low weight (≤0.6kg) and high sealing structure.

[0052] Expands the scope of application due to the chemical resistance, hydrophobicity and antistatic properties of the material.

[0053] It can be used in the following areas:

[0054] Industrial ecology and chemistry: use of the suit when working with highly toxic liquid reagents, acids, alkalis and concentrated salt solutions, where the design of the product ensures reliable sealing of seams and chemical inertness.

[0055] Biological and epidemiological protection: use of the suit in the “red zones” of medical institutions, high-risk biological laboratories, as well as in the elimination of biological accidents, where the barrier function against viruses, bacteria and spores carried by aerosols is critically important.

[0056] Nuclear energy and decontamination: the suit is designed to protect the skin and main workwear of personnel in the nuclear industry from contamination by radioactive aerosols with a solid dispersed phase (radioactive dust).

[0057] High-tech production ("clean rooms"): use of the suit in microelectronics and pharmaceuticals, where the lint-free structure of the material eliminates the desorption of its own fibers and prevents contamination of the process environment with particles of the operator's epithelium.

[0058] Confined Space Maintenance: Work in overalls inside tanks, cisterns and pipelines where limited natural ventilation requires a forced supply of purified air to maintain operator vital activity and temperature control.

Claims

A forced-air supply suit made of a multilayer non-woven material comprising two one-piece suit parts without side seams with sleeves and trousers, a visor with a 180° viewing angle, an air supply system, an elastic waistband, a manhole located on the front left part of the suit with a transition to a helmet, closed by a valve bar, a nipple for connecting to an air supply hose, characterized in that it is equipped with a helmet with the said visor, a frame and a molded liner made of needle-punched non-woven fabric with through ventilation holes, an insulating tape for sealing the thread seams and the junction of the glass with the helmet, wherein the sleeves and trousers are equipped with reinforcement and an elastic band at the bottom, the nipple is connected by means of a hermetically sealed fastening to an internal reservoir made of a filter non-woven material, and the helmet is equipped with an elastic cord with a clip for headband size adjustment,an elastic band for fixation under the chin, an elastic band is sewn along the seam connecting the helmet to the neck, and the viewing glass is made of optically transparent semi-rigid polyvinyl chloride with a double-sided anti-fog coating.

Images