CN210143918U

CN210143918U - Face mask for preventing face shield of helmet from fogging

Info

Publication number: CN210143918U
Application number: CN201920298973.6U
Authority: CN
Inventors: 赵吉星
Original assignee: Chengdu Jiqiao Research And Technology Co Ltd
Current assignee: Chengdu Jiqiao Research And Technology Co Ltd
Priority date: 2019-03-09
Filing date: 2019-03-09
Publication date: 2020-03-17
Anticipated expiration: 2029-03-09

Abstract

The utility model discloses a prevent face guard of helmet face shield hazing, including protection skull, face guard, the gas tightness cover body and fixed bolster, the lower terminal surface swing joint of protection skull has the face guard, and the outer wall fixedly connected with gas tightness cover body of face guard, the outer wall fixedly connected with fixed bolster of the gas tightness cover body, the outer wall of fixed bolster is provided with four fixed points, and the outer wall of the gas tightness cover body is provided with at least one-way admission valve, and at least one-way admission valve is located the both sides of fixed bolster respectively. This kind of prevent face guard of helmet face screen hazing, cover the gas tightness cover body tightly in the person's of wearing mouth nose department through the fixed bolster, thereby the air can only get into the face guard through one-way admission valve, also can only discharge the face guard through one-way discharge valve, and the position that one-way discharge valve set up then keeps away from safety glasses with the orientation, the direction of restraint people exhalation waste gas has been realized, make waste gas keep away from safety glasses, avoid steam to condense at the person's of wearing sight place, thereby reach the effect that prevents the hazing.

Description

Face mask for preventing face shield of helmet from fogging

Technical Field

The utility model relates to a protective articles field, in particular to prevent face guard of helmet face screen fogging.

Background

The protective helmet is a harness for protecting the head, is a hat worn by soldiers in training and fighting, is also an indispensable tool in people transportation or special work, is mostly semicircular, and mainly comprises a shell, a lining and a suspension device, wherein the shell is respectively made of special steel, glass fiber reinforced plastic, leather, nylon and other materials so as to resist the head from being injured by bullets, shrapnel and other striking objects.

Generally, when a helmet, a hood and other equipment with a face screen or a face mask are worn, because water vapor is contained in waste gas generated by breathing of a person, the waste gas often forms fog on the inner side of the face screen or the face mask, the sight line is influenced, safety accidents are caused due to poor sight line, and the safety of the wearer and other people is endangered, so that the problem is solved by a novel face mask for preventing the face screen of the helmet from forming fog.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent face guard that helmet face shield hazed, realized the direction of restraint people exhalation waste gas, make waste gas keep away from safety glasses, avoid steam to condense at the person's of wearing sight place to reach the effect that prevents the fog.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a prevent face guard that helmet face shield hazed, includes protection skull, face guard, the gas tightness cover body and fixed bolster, the lower terminal surface swing joint of protection skull has the face guard, the outer wall fixedly connected with gas tightness cover body of face guard, the outer wall fixedly connected with fixed bolster of the gas tightness cover body, the outer wall of fixed bolster is provided with four fixed points, the outer wall of the gas tightness cover body is provided with at least one-way admission valve, two one-way admission valve is located respectively the both sides of fixed bolster, the inside joint of one-way admission valve has hydrophobic filter screen, the lower terminal surface of the gas tightness cover body is provided with one-way discharge valve, the gas tightness cover body with swing joint has protective.

Furthermore, the outer wall of protection skull has cup jointed the girth regulation band, the girth regulation band is "ring" form, the internal diameter of girth regulation band equals the external diameter of protection skull, just the internal diameter of girth regulation band can zoom.

Furthermore, the outer wall of the circumference adjusting belt is movably connected with four connecting pieces, the upper end face of each connecting piece is provided with a plug-in port, and the connecting pieces can slide along the circumference adjusting belt.

Furthermore, two overhead belts are tightly attached to the upper end face of the protective head cover, two ends of each overhead belt are respectively inserted into the insertion ports of the connecting pieces, and the two overhead belts are arranged in a crossed mode.

Further, the back wall of the airtight cover body is tightly attached with a sponge, the sponge is in an arc shape and is in a sheet shape, and a circular opening is formed in the center of the sponge.

Furthermore, the rear wall of sponge has closely laminated waterproof layer, the waterproof layer is kept away from one side and the human skin direct contact of sponge, the rear wall upper portion of waterproof layer is provided with "U type" groove.

Further, the equal fixedly connected with elasticity meshbelt of the left and right sides of the gas tightness cover body, the elasticity meshbelt is "rectangular" slice, two the elasticity meshbelt symmetry sets up, just the elasticity meshbelt can extend and elongate.

To sum up, the utility model discloses following beneficial effect has:

this kind of prevent face guard of helmet face screen hazing, cover the gas tightness cover body tightly in the person's of wearing mouth nose department through the fixed bolster, thereby the air can only get into the face guard through one-way admission valve, also can only discharge the face guard through one-way discharge valve, and the position that one-way discharge valve set up then keeps away from safety glasses with the orientation, the direction of restraint people exhalation waste gas has been realized, make waste gas keep away from safety glasses, avoid steam to condense at the person's of wearing sight place, thereby reach the effect that prevents the hazing.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is an overall structure view of the mask of the present invention;

fig. 3 is a side view of the mask of the present invention;

in the figure, 1, a protective head cover; 101. a girth adjusting band; 102. a connecting member; 103. a head strap; 2. a face mask; 201. an airtight cover body; 202. fixing a bracket; 2021. fixing the point location; 203. a one-way intake valve; 2031. a hydrophobic filter screen; 204. a one-way exhaust valve; 205. a sponge; 206. a waterproof layer; 207. protective eyewear; 208. an elastic webbing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, a face mask for preventing the face shield of a helmet from fogging, comprising a protective head cover 1, a face mask 2, an airtight mask body 201 and a fixing support 202, wherein the lower end face of the protective head cover 1 is movably connected with the face mask 2, the outer wall of the face mask 2 is fixedly connected with the airtight mask body 201, the outer wall of the airtight mask body 201 is fixedly connected with the fixing support 202, the outer wall of the fixing support 202 is provided with four fixing points 2021, the outer wall of the airtight mask body 201 is provided with two one-way air intake valves 203, the two one-way air intake valves 203 are respectively positioned at two sides of the fixing support 202, wherein the one-way air intake valves 203 can also be one or more selected at proper positions according to actual use and installation requirements, the inside of the one-way air intake valves 203 is clamped with a hydrophobic filter screen 2031, the lower end, when the device is used, a wearer wears the protective glasses 207, then the face mask 2 is attached to the face and fixed on the fixed point 2021 through the fixed bracket 202, thereby covering the air-tight cover body 201 at the mouth and nose of the wearer, so that the air can only enter the mask 2 through the one-way air inlet valve 203, the hydrophobic filter screen 2031 in the one-way air inlet valve 203 plays a role in filtering impurities in the air, and the water vapor in the nose of the wearer is prevented from attaching to the inner wall of the one-way air inlet valve 203, so as to avoid the one-way inlet valve 203 from becoming blocked, affecting breathing, and the wearer can only exhaust exhaled air out of the mask 2 through the one-way exhaust valve 204, the one-way exhaust valve 204 is far away from the protective glasses 207 in position and orientation, so that the direction of the exhaust gas exhaled by the person is restricted, the exhaust gas is far away from the protective glasses 207, and the water vapor is prevented from condensing at the position where the sight of the wearer is located, so that the effect of preventing fogging is achieved; the air inlet of the one-way air inlet valve can be connected with an air filtering device, and the air filtering device contains dustproof filtering materials, such as dustproof materials or anti-poison filtering materials; the air inlet of the one-way air inlet valve can also be connected with devices for increasing the oxygen content or the air temperature, such as an oxygen increasing pump, an oxygen increasing machine and the like; the oxygenation device can be arranged on a face mask, or can be externally connected with equipment carried in use through a hose or a pipeline or hung on the back of a person.

Example 2

Referring to fig. 1, a face mask for preventing the face shield of a helmet from fogging, comprising a protective head cover 1, a face mask 2, an airtight mask body 201 and a fixing bracket 202, wherein the lower end face of the protective head cover 1 is movably connected with the face mask 2, the outer wall of the face mask 2 is fixedly connected with the airtight mask body 201, the outer wall of the airtight mask body 201 is fixedly connected with the fixing bracket 202, the outer wall of the fixing bracket 202 is provided with four fixing points 2021, the outer wall of the airtight mask body 201 is provided with at least one-way air inlet valve 203, the at least one-way air inlet valve 203 is respectively positioned at two sides of the fixing bracket 202, a hydrophobic filter screen 2031 is clamped inside the one-way air inlet valve 203, the lower end face of the airtight mask body 201 is provided with a one-way exhaust valve 204, protective glasses 207 are movably connected between the, fix on fixed point position 2021 through fixed bolster 202, thereby cover the gas tightness cover body 201 tight in the person's of wearing mouth nose department, thereby the air can only get into face guard 2 through one-way admission valve 203, hydrophobic filter screen 2031 in the one-way admission valve 203 has played the effect of impurity in the filtered air, and avoid the steam in the person's of wearing nose to adhere to one-way admission valve 203 inner wall, thereby avoid one-way admission valve 203 to block up the influence and breathe, and the person of wearing also can only be through one-way exhaust valve 204 with expired gas exhaust face guard 2, and the position that one-way exhaust valve 204 set up and orientation then keep away from protective spectacles 207, the direction of restraint people's expired waste gas has been realized, make waste gas keep away from protective spectacles 207, avoid the steam to condense at the place where the person's sight reaches.

Furthermore, the periphery adjusting belt 101 is sleeved on the outer wall of the protection head cover 1, the periphery adjusting belt 101 is in a ring shape, the inner diameter of the periphery adjusting belt 101 is equal to the outer diameter of the protection head cover 1, the inner diameter of the periphery adjusting belt 101 can be scaled, the outer wall of the periphery adjusting belt 101 is movably connected with four connecting pieces 102, the upper end face of each connecting piece 102 is provided with a plugging port, each connecting piece 102 can slide along the periphery adjusting belt 101, the upper end face of the protection head cover 1 is tightly attached with two head top belts 103, two ends of each head top belt 103 are respectively plugged in the plugging ports of the corresponding connecting piece 102, the two head top belts 103 are arranged in a crossed manner, a wearer wears the protection head cover 1, inserts two ends of each head top belt 103 into the corresponding connecting pieces 102, slides the corresponding connecting pieces 102 along the periphery adjusting belt 101 until the two head top belts 103 are tightly tightened and tightly attached to the protection head cover 1, so as to ensure the stability of the protection head, then, the girth adjusting belt 101 adjusts the girth of the protection head cover 1, and the inside diameter of the girth adjusting belt 101 is adjusted to adjust the girth of the protection head cover 1.

Example 3

Referring to fig. 1 and 3, a face mask for preventing a helmet visor from fogging, comprising a protective head cover 1, a face mask 2, an airtight mask body 201 and a fixing bracket 202, wherein the lower end face of the protective head cover 1 is movably connected with the face mask 2, the outer wall of the face mask 2 is fixedly connected with the airtight mask body 201, the outer wall of the airtight mask body 201 is fixedly connected with the fixing bracket 202, the outer wall of the fixing bracket 202 is provided with four fixing points 2021, the outer wall of the airtight mask body 201 is provided with at least one-way air inlet valve 203, the at least one-way air inlet valve 203 is respectively positioned at two sides of the fixing bracket 202, a hydrophobic filter screen 2031 is clamped inside the one-way air inlet valve 203, the lower end face of the airtight mask body 201 is provided with a one-way exhaust valve 204, protective glasses 207 are movably connected between the airtight mask body, fix on fixed point position 2021 through fixed bolster 202, thereby cover the gas tightness cover body 201 tight in the person's of wearing mouth nose department, thereby the air can only get into face guard 2 through one-way admission valve 203, hydrophobic filter screen 2031 in the one-way admission valve 203 has played the effect of impurity in the filtered air, and avoid the steam in the person's of wearing nose to adhere to one-way admission valve 203 inner wall, thereby avoid one-way admission valve 203 to block up the influence and breathe, and the person of wearing also can only be through one-way exhaust valve 204 with expired gas exhaust face guard 2, and the position that one-way exhaust valve 204 set up and orientation then keep away from protective spectacles 207, the direction of restraint people's expired waste gas has been realized, make waste gas keep away from protective spectacles 207, avoid the steam to condense at the place where the person's sight reaches.

Further, the back wall of the gas tightness cover body 201 closely laminates sponge 205, sponge 205 is "arc" slice, and the central point of sponge 205 is provided with circular opening, be convenient for during the person's of wearing the mouth nose gets into the gas tightness cover body 201, the back wall of sponge 205 closely laminates waterproof layer 206, waterproof layer 206 has played the effect of sweat-absorbing, sweat and influence wearing of the gas tightness cover body 201 when avoiding wearing, one side and human skin direct contact that sponge 205 was kept away from to waterproof layer 206, the back wall upper portion of waterproof layer 206 is provided with "U type" groove, make waterproof layer 206 and bridge of the nose laminating, and sponge 205 texture is softer, the travelling comfort of wearing has been promoted.

The equal fixed connection in the left and right sides of the gas tightness cover body 201 has had elasticity meshbelt 208, and elasticity meshbelt 208 has played the fixed action to whole modularization helmet, and elasticity meshbelt 208 is "rectangular" slice, and two elasticity meshbelt 208 symmetries set up, has reached the effect of the ligature of being convenient for, and elasticity meshbelt 208 can extend and stretch for elasticity meshbelt 208 closely laminates with the head after the ligature, has realized the firm fixed of elasticity meshbelt 208.

The working principle is as follows: firstly, a wearer wears the protective head cover 1, two ends of a head top belt 103 are inserted into a connecting piece 102, then the girth adjusting belt 101 is adjusted to adjust the girth of the protective head cover 1, then the wearer wears the protective glasses 207, then the face mask 2 is attached to the face, then the fixing bracket 202 is fixed on a fixing point 2021, then the waterproof layer 206 is attached to the skin, the sponge 205 separates the waterproof layer 106 from the airtight cover 201, so that the airtight cover 201 is tightly covered at the mouth and nose of the wearer, then air enters the face mask 2 through the one-way air inlet valve 203, the hydrophobic filter screen 2031 inside the one-way air inlet valve 203 filters inhaled air, water vapor cannot be attached to the hydrophobic filter screen 2031, the one-way air inlet valve 203 is kept near term, then the wearer exhausts exhaled air out of the face mask 2 through the one-way exhaust valve 204, and the exhaled air is far away from the protective glasses 207, finally, the two elastic webbings 208 are connected to secure the helmet.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a prevent face guard of helmet face screen hazing, includes protection skull (1), face guard (2), the gas tightness cover body (201) and fixed bolster (202), its characterized in that: the lower terminal surface swing joint of protection skull (1) has face guard (2), the outer wall fixedly connected with gas tightness cover body (201) of face guard (2), the outer wall fixedly connected with fixed bolster (202) of the gas tightness cover body (201), the outer wall of fixed bolster (202) is provided with four fixed point positions (2021), the outer wall of the gas tightness cover body (201) is provided with at least one-way admission valve (203), two one-way admission valve (203) are located respectively the both sides of fixed bolster (202), the inside joint of one-way admission valve (203) has hydrophobic filter screen (2031), the lower terminal surface of the gas tightness cover body (201) is provided with one-way exhaust valve (204), the gas tightness cover body (201) with swing joint has protection glasses (207) between protection skull (1).

2. A mask for preventing fogging of a helmet visor as claimed in claim 1, wherein: the outer wall of protection skull (1) has cup jointed girth regulation band (101), girth regulation band (101) are "ring" form, the internal diameter of girth regulation band (101) equals the external diameter of protection skull (1), just the internal diameter of girth regulation band (101) can zoom.

3. A mask for preventing fogging of a helmet visor as claimed in claim 2, wherein: the outer wall of the circumference adjusting belt (101) is movably connected with four connecting pieces (102), the upper end face of each connecting piece (102) is provided with a plug interface, and the connecting pieces (102) can slide along the circumference adjusting belt (101).

4. A mask for preventing fogging of a helmet visor as claimed in claim 3, wherein: two overhead belts (103) are tightly attached to the upper end face of the protective head cover (1), two ends of each overhead belt (103) are respectively inserted into the insertion ports of the connecting pieces (102), and the two overhead belts (103) are arranged in a crossed mode.

5. A mask for preventing fogging of a helmet visor as claimed in claim 1, wherein: the back wall of the air-tight cover body (201) is tightly attached with a sponge (205), the sponge (205) is in an arc shape sheet shape, and a circular opening is arranged at the center of the sponge (205).

6. A mask for preventing fogging of a helmet visor as claimed in claim 5, wherein: the back wall of sponge (205) is closely laminated with waterproof layer (206), waterproof layer (206) are kept away from one side and human skin direct contact of sponge (205), the back wall upper portion of waterproof layer (206) is provided with "U type" groove.

7. A mask for preventing fogging of a helmet visor as claimed in claim 1, wherein: the equal fixedly connected with elasticity meshbelt (208) of the left and right sides of the gas tightness cover body (201), elasticity meshbelt (208) are "rectangular" slice, two elasticity meshbelt (208) symmetry sets up, just elasticity meshbelt (208) can extend and elongate.