Head protection device and system capable of preventing high-temperature liquid and steam

Abstract

The utility model provides a head protection device and system capable of preventing high-temperature liquid and steam. The utility model relates to a head protection device, which comprises a head cover provided with a head cover body and an annular bib piece connected with the lower portion of the head cover body, and a mask opening is formed in the front side portion of the head cover body. The protective mask is fixedly arranged at the mask opening; the respirator is integrated at the bottom of the protective mask; the helmet shell is located on the inner top of the head cover body and connected with the top of the protective mask, the head cover is made of high-temperature liquid and steam protective fabric, and the high-temperature liquid and steam protective fabric is provided with a blocking outer layer, a heat insulation middle layer and a comfortable inner layer which are sequentially arranged from outside to inside. And the edge of the mask opening is hermetically connected with the protective mask and the respirator. The head protection system provided by the utility model comprises the head protection device; the compressed air bottle is communicated with the respirator through a connecting pipe; and the bearing mechanism is used for bearing the compressed air bottle.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-temperature liquid and steam protection, and in particular relates to a head protection device and system for protecting against high-temperature liquid and steam. Background Art

[0002] In special construction environments, protective helmets, protective masks, respirators, compressed air bottles and protective clothing are important components of the entire protection system. Protective helmets are personal protective equipment provided to protect the safety of workers' heads, and directly protect the head; protective masks protect the wearer's entire face from damage such as projectiles, road debris, chemical splashes in laboratories or potential viruses or bacteria in hospitals; respirators protect the wearer from harmful substances in the special construction environment, such as poison gas, smoke, or bacteria. Compressed air bottles often form an independent breathing system together with air respirators.

[0003] In the existing air respirator system, the respirator and the air bottle are often exposed outside, and it is difficult to wear a mask, helmet, etc. after putting them on. In the environment of high humidity and high heat, with hot water splashing, all-round protection is required, and there is an embarrassing dilemma of having to choose only one of the two. Especially in the construction environment of tunnels and mines, there are still some stones flying, and the conventional breathing system is difficult to provide suitable protection. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the main purpose of the present invention is to provide a head protection device and system for protecting against high temperature liquids and steam. In the present invention, high temperature liquid refers to liquid in the temperature range of 40 to 100°C.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] <Option 1>

[0007] The utility model provides a head protection device for protecting against high-temperature liquids and steam, which has the following characteristics: a hood, which has a hood body and an annular bib piece connected to the lower part of the hood body, wherein a mask opening is arranged at the front side of the hood body; a protective mask, which is fixedly arranged at the mask opening; a respirator, which is integrated into the bottom of the protective mask; and a helmet shell, which is located at the inner top of the hood body and is connected to the top of the protective mask, wherein the hood is a high-temperature liquid and steam protection fabric, which has a blocking outer layer, a heat insulating middle layer and a comfortable inner layer, which are arranged in sequence from the outside to the inside, and the edge of the mask opening is sealed and connected to the protective mask and the respirator.

[0008] The head protection device for protecting against high-temperature liquid and steam provided by the utility model may also have the following feature: wherein the helmet shell is arranged to be tilted downward from the front to the back.

[0009] The head protection device for protecting against high-temperature liquids and steam provided by the utility model may also have the following feature: a middle drainage groove extending from front to back is provided at the central portion of the outer top of the helmet shell.

[0010] The head protection device for protecting against high-temperature liquids and steam provided by the utility model may also have the following feature: a U-shaped side drainage groove is provided on the peripheral portion of the outer top of the helmet shell, and the recessed portion of the side drainage groove is located at the front of the helmet shell.

[0011] The head protection device for protecting against high-temperature liquid and steam provided by the utility model may also have the following feature: a head pad is provided on the inner top of the helmet shell.

[0012] In the head protection device for protection against high-temperature liquids and steam provided by the utility model, it can also have the following characteristics: wherein, the barrier outer layer comprises a double-layer fabric of high-temperature resistant fibers and a PTFE membrane compounded on the inner side of the double-layer fabric of high-temperature resistant fibers, the heat-insulating middle layer comprises a polyimide aerogel layer and a high-temperature resistant fiber fabric quilted on the inner side of the polyimide aerogel layer, and the comfortable inner layer comprises a high-temperature resistant flame-retardant fiber blended fabric and a PU membrane compounded on the outer side of the high-temperature resistant flame-retardant fiber blended fabric.

[0013] <Option 2>

[0014] The utility model also provides a head protection system for protecting against high-temperature liquids and steam, which has the following characteristics: a head protection device for protecting against high-temperature liquids and steam as in <Scheme 1>; a compressed air bottle connected to the respirator through a connecting pipe; and a carrying mechanism for carrying the compressed air bottle.

[0015] Function and effect of utility model

[0016] According to the head protection device and system for protecting against high-temperature liquids and steam involved in the utility model, the head protection device and system have a hood, a protective mask, a respirator and a helmet shell. The hood has a hood body and an annular bib piece. The front side of the hood body is provided with a mask opening. The protective mask is fixedly arranged at the mask opening. The respirator is integrated into the bottom of the protective mask. The edge of the mask opening is sealed and connected with the protective mask and the respirator. The helmet shell is located at the inner top of the hood body and is connected to the top of the protective mask. The hood is a high-temperature liquid and steam protective fabric. The high-temperature liquid and steam protective fabric has a blocking outer layer, a heat-insulating middle layer and a comfortable inner layer arranged in sequence from the outside to the inside, and has a high-temperature liquid and steam protection function, thereby forming a head protection system with a reasonable structural design and easy to wear. The head, neck, shoulders, chest and back can be fully protected against high-temperature liquids and steam, and can protect the personal safety of workers during construction in a tunnel environment with high temperature and heat and hot water splashing and high-temperature steam, and extend the working time as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a head protection system for protecting against high temperature liquid and steam in an embodiment of the utility model;

[0018] Figure 2 It is a side view of the protective mask, the respirator and the helmet shell in the embodiment of the utility model;

[0019] Figure 3 is a front view of a protective mask, a respirator and a helmet shell in an embodiment of the utility model; and

[0020] Figure 4 It is a structural diagram of a high-temperature liquid and steam protective fabric in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0022] <Example>

[0023] Figure 1 It is a structural schematic diagram of a head protection system for protecting against high-temperature liquids and steam in an embodiment of the utility model.

[0024] like Figure 1 As shown, in this embodiment, the head protection system 100 for preventing high temperature liquid and steam from splashing on the head can be used alone or in combination with protective clothing as needed. The head protection system 100 for preventing high temperature liquid and steam from splashing on the head includes a head protection device 10, a compressed air bottle 20, and a carrying mechanism 30.

[0025] like Figure 1 As shown, the head protection device 10 includes a hood 11 , a protective mask 12 , a respirator 13 and a helmet shell 14 .

[0026] like Figure 1 As shown, the hood 11 is made of high-temperature liquid and steam protective fabric, and comprises a hood body 11a and an annular bib piece 11b.

[0027] The front side of the hood body 11 a is provided with a mask opening 11 c matching the protective mask 12 .

[0028] The annular bib piece 11b is integrally formed at the lower portion of the hood body 11a, and can provide comprehensive protection for the neck, shoulders, chest and back from high-temperature liquids and steam.

[0029] Figure 2 It is a side view of the protective mask, the respirator and the helmet shell in the embodiment of the utility model; Figure 3 It is a front view of a protective mask, a respirator and a helmet shell in an embodiment of the utility model.

[0030] like Figures 1 to 3 As shown, the protective mask 12 is a mask with a high temperature resistant face shield, which is located inside the head cover body 11a and fixedly arranged at the mask opening 11c.

[0031] like Figures 1 to 3 As shown, the respirator 13 is integrated at the bottom of the protective mask 12, and an air inlet 13a is provided at the outer side thereof. In this embodiment, the edge of the mask opening 11c is sealed and connected to the protective mask 12 and the respirator 13 by a high temperature resistant adhesive.

[0032] like Figures 1 to 3 As shown, the helmet shell 14 is hemispherical as a whole, located at the inner top of the head cover body 11a and tilted downward from front to back. The bottom edge of the helmet shell 14 is detachably connected to the top of the protective mask 12 through a plurality of adjustable connecting straps 14a.

[0033] A middle drainage groove 14b extending from front to back is provided at the central portion of the outer top of the helmet shell 14; a U-shaped side drainage groove 14c is provided at the peripheral portion of the outer top of the helmet shell 14, and the concave portion of the side drainage groove 14c is located at the front portion of the helmet shell 14.

[0034] A head pad (not shown) is also provided on the inner top of the helmet shell 14 .

[0035] like Figure 1 As shown, the compressed air bottle 20 is connected to the respirator 13 via a connecting pipe 21 .

[0036] like Figure 1As shown, the carrying mechanism 30 is used to carry the compressed air bottle 20, which is a prior art and will not be described in detail here.

[0037] Figure 4 It is a structural diagram of a high-temperature liquid and steam protective fabric in an embodiment of the utility model.

[0038] In this embodiment, the head cover 11 is Figure 4 The high temperature liquid and steam protection fabric 110 shown has the functions of preventing high temperature liquid and steam penetration, high temperature resistance and heat insulation, and good wearing comfort. The high temperature liquid and steam protection fabric 110 comprises a barrier outer layer 111, a heat insulation middle layer 112, and a comfortable inner layer 113 arranged in sequence from the outside to the inside.

[0039] The outer barrier layer 111 has the functions of high temperature resistance, high temperature liquid and steam penetration resistance, and comprises a high temperature resistant fiber double-layer fabric 111a and a PTFE membrane 111b compounded on the inner side of the high temperature resistant fiber double-layer fabric 111a. The high temperature resistant fiber double-layer fabric 111a is woven from a blended yarn consisting of 40-50% meta-aramid fiber, 35-45% para-aramid fiber and 15-25% polyimide fiber by weight. s / 2 weaving, weight per unit area is 250~350g / m 2 The thickness is 0.5-0.7 mm. The PTFE membrane 111b is compounded on the inner side of the high temperature resistant fiber double-layer fabric 111a through a high temperature resistant adhesive. The DPM05 PTFE membrane of Ningbo Dengyue New Material Technology Co., Ltd. is selected, and the moisture permeability is greater than 5000g / (m 2 ·24h), pore size is 0.6μm, air permeability is 8-15mm / s, thickness is 30-50μm.

[0040] The heat-insulating middle layer 112 has the functions of high temperature resistance, high temperature liquid and steam penetration resistance, and comprises a polyimide aerogel layer 112a and a high temperature resistant fiber fabric 112b quilted on the inner side of the polyimide aerogel layer 112a. The polyimide aerogel layer 112a is a polyimide aerogel layer of type Narong 95-30 produced by Shenzhen Weiner Advanced Materials Technology Co., Ltd., with a thickness of 0.3-0.4 mm, a thermal insulation rate of 50-60%, and a heat transfer coefficient of 9.2-9.5 W (m 2 ·℃), thermal insulation value is 0.680~0.690CLO, thermal resistance is 0.100~0.120(m 2 ·K / W), moisture resistance is 18.5~20.5(m 2 The high temperature resistant fiber fabric 112b is a plain pongee fabric woven with graphene silver ion fiber, and the weight per unit area is 60-70 g / m 2 , thickness is 0.2~0.3mm.

[0041] The comfortable inner layer 113 has the functions of high temperature resistance and comfortable wearing, and comprises a high temperature resistant flame retardant fiber blended fabric 113a, and a PU film 113b compounded on the outer side of the high temperature resistant flame retardant fiber blended fabric 113a. The high temperature resistant flame retardant fiber blended fabric 113a is a pipe fabric woven from a blended yarn consisting of 65-75% by weight of meta-aramid fiber, 10-20% of nylon fiber and 5-15% of flame retardant cotton fiber. s / 2 weaving, unit area weight is 180~220g / m 2 The thickness is 0.5-0.7mm. The PU film 113b is compounded on the outer side of the high temperature resistant flame retardant fiber blended fabric 113a by a high temperature resistant adhesive. The SF33 PU film of Guangzhou Sanfu Chemical Co., Ltd. is selected. The thickness is 20-40μm, the pore size is 0.8μm, and the moisture permeability is >5000g / (m 2 ·24h), air permeability>10mm / s.

[0042] Example Function and Effect

[0043] According to the head protection device and system for protecting against high-temperature liquids and steam involved in this embodiment, since it has a hood, a protective mask, a respirator and a helmet shell, the hood has a hood body and an annular bib piece, the front side of the hood body is provided with a mask opening, the protective mask is fixedly arranged at the mask opening, the respirator is integrated into the bottom of the protective mask, the edge of the mask opening is sealed and connected with the protective mask and the respirator, the helmet shell is located at the inner top of the hood body and is connected to the top of the protective mask, the hood is a high-temperature liquid and steam protective fabric, the high-temperature liquid and steam protective fabric has a blocking outer layer, an insulating middle layer and a comfortable inner layer arranged in sequence from the outside to the inside, and has a high-temperature liquid and steam protection function, thereby forming a head protection system with a reasonable structural design and easy to wear, which can provide comprehensive high-temperature liquid and steam protection for the head, neck, shoulders, chest and back, and can protect the personal safety of workers during construction in a tunnel environment with high temperature and heat and hot water splashing and high-temperature steam, and prolong the working time as much as possible.

[0044] Furthermore, because the helmet shell is arranged to be tilted downward from the front to the back, the wearing comfort is further improved.

[0045] In addition, because the outer top of the helmet shell is provided with a middle drainage groove extending from front to back, and the peripheral part is provided with a "U"-shaped side drainage groove, the concave part of the side drainage groove is located at the front part of the helmet shell, which is convenient for guiding the sprayed hot water from front to back, avoiding the hot water flowing down and blocking the operator's line of sight.

[0046] In addition, because a head pad is provided on the inner top of the helmet shell, it has good cushioning function and is comfortable to wear.

[0047] The above implementation modes are preferred examples of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A head protection device for protecting against high temperature liquids and steam, characterized in that: include: The hood comprises a hood body and an annular bib piece connected to the lower part of the hood body, wherein the front side of the hood body is provided with a mask opening; A protective mask, fixedly arranged at the mask opening; A respirator integrated into the bottom of the protective mask; as well as The helmet shell is located at the inner top of the head cover body and is connected to the top of the protective mask. The hood is a high-temperature liquid and steam protective fabric, which has a barrier outer layer, a heat-insulating middle layer and a comfortable inner layer arranged in sequence from the outside to the inside. The edge of the mask opening is sealed to the protective mask and the respirator.

2. The head protection device for protecting against high temperature liquid and steam according to claim 1, characterized in that: in, The helmet shell is arranged to be tilted downward from front to back.

3. The head protection device for protecting against high temperature liquid and steam according to claim 1, characterized in that: in, A middle drainage groove extending from front to back is provided at the central part of the outer top of the helmet shell.

4. The head protection device for protecting against high temperature liquid and steam according to claim 2, characterized in that: in, A U-shaped side drainage groove is also provided at the peripheral portion of the outer top of the helmet shell, and the concave portion of the side drainage groove is located at the front portion of the helmet shell.

5. The head protection device for protecting against high temperature liquid and steam according to claim 1, characterized in that: in, A head pad is provided on the inner top of the helmet shell.

6. The head protection device for protecting against high temperature liquid and steam according to claim 1, characterized in that: in, The barrier outer layer comprises a high temperature resistant fiber double-layer fabric and a PTFE film compounded on the inner side of the high temperature resistant fiber double-layer fabric. The heat-insulating middle layer comprises a polyimide aerogel layer and a high-temperature-resistant fiber fabric quilted on the inner side of the polyimide aerogel layer. The comfortable inner layer comprises a high temperature resistant flame retardant fiber blended fabric and a PU film compounded on the outer side of the high temperature resistant flame retardant fiber blended fabric.

7. A head protection system for protecting against high temperature liquids and steam, characterized in that: include: A head protection device for protecting against high temperature liquids and steam as claimed in any one of claims 1 to 6; A compressed air bottle connected to the respirator via a connecting pipe; as well as A carrying mechanism is used for carrying the compressed air bottle.

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