CN212038652U - Gas mask and protective helmet - Google Patents

Abstract

The utility model relates to a gas mask and protective helmet. The gas mask includes a protective cover, a filter element, and an adapter. Wherein, the protection casing is used for covering to establish on user's mouth nose, and the protection casing is equipped with admission valve and air outlet valve. The filter element is connected with the air inlet valve. One end and the protection casing of adaptor are connected, and the other end of adaptor is equipped with the fast union piece, and the fast union piece is used for connecting the helmet. The protective cover of the gas mask is covered on the mouth and the nose of a user, so that the eyes of the user are avoided, the gas mask can be well compatible with the anti-fragment goggles, the user can wear the anti-fragment goggles while wearing the gas mask, and the fragile parts of the eyes are effectively protected. Furthermore, the adapter is arranged on the protective cover, and the quick connector matched with the guide rail of the helmet is arranged on the adapter, so that the gas mask can be hung on the guide rail of the helmet, the wearing and taking-off operation can be completed by using one-hand operation, and the emergency capacity of a user is greatly improved.

Description

Gas mask and protective helmet

Technical Field

The utility model relates to a tactics equipment technical field especially relates to gas mask and protective helmet.

Background

In the operation place with poison or dust, when the engineering protection measure can not reduce the concentration of the poison or dust below the safe and healthy concentration, the individual protection article becomes the last line of defense, and the respiratory protection article is the key article for preventing poison and dust, and particularly, the gas mask is the key equipment for preventing poison.

When special people such as military policemen perform tasks in places with poison or dust, the mask needs to be worn to protect the poison or dust, and the helmet also needs to be worn to protect important parts such as the head from bullet and impact. However, most of the existing gas masks are full-face masks, which are bulky, conspicuous among people and easy to expose positions. And the existing gas mask can not be well compatible with the anti-fragment goggles and can not protect the vulnerable parts such as eyes. Current gas masks are also not well compatible with helmets. When the helmet is used, the respirator needs to be taken firstly and then the helmet is worn, when the helmet is disassembled, the helmet needs to be taken off firstly and then the helmet is taken off, the use is complicated, and the operation fault tolerance is poor in emergency.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a respirator and protective helmet that is easy to put on and take off and that is compatible with both goggles and helmets.

A respirator that comprises:

the protective cover is used for covering the mouth and the nose of a user and is provided with an air inlet valve and an air outlet valve;

a filter element coupled to the intake valve; and the number of the first and second groups,

the one end of adaptor with the protection casing is connected, the other end of adaptor is equipped with the fast union piece, the fast union piece is used for connecting the guide rail of helmet.

The protective cover of the gas mask is covered on the mouth and the nose of a user, so that the eyes of the user are avoided, the interference of the protective cover and the anti-fragment goggles is avoided, the gas mask can be well compatible with the anti-fragment goggles, the user can wear the anti-fragment goggles while wearing the gas mask, and the fragile parts of the eyes are effectively protected. Furthermore, the adapter is arranged on the protective cover, and the quick connector matched with the guide rail of the helmet is arranged on the adapter, so that the gas mask can be hung on the guide rail of the helmet, the wearing and taking-off operation can be completed by using one-hand operation, and the emergency capacity of a user is greatly improved.

In one embodiment, the shield comprises:

the mask body is used for hermetically covering the mouth and the nose of a user and is made of soft materials;

the shell covers the cover body and wraps the cover body, and the shell is made of an impact-resistant material.

In one embodiment, the air inlet valve and the air outlet valve are integrally formed with the housing, and the housing is provided with an air inlet hole and an air outlet hole, wherein the air inlet hole is communicated with the air inlet valve, and the air outlet hole is communicated with the air outlet valve.

In one embodiment, the shell is provided with a first connecting portion and a second connecting portion which are spaced from each other, the adaptor is connected to the first connecting portion, the respirator further comprises a reinforcing member, one end of the reinforcing member is connected to the second connecting portion, and the other end of the reinforcing member is connected to the adaptor.

In one embodiment, the adaptor and the stiffener are made of elastic materials.

In one embodiment, the respirator further comprises a communication module disposed on a side of the hood remote from the housing.

In one embodiment, the communication module comprises a bluetooth transceiver and a microphone, and the bluetooth transceiver is electrically connected with the microphone.

In one embodiment, the quick connector is a buckle, the buckle is provided with an inverted buckle, and the inverted buckle is used for being hung on a guide rail of the helmet; or the quick connecting piece is a magnetic part which is used for being connected with a magnetic part arranged on the guide rail of the helmet in a magnetic way.

In one embodiment, the protective cover is provided with at least two air inlet valves, which are detachably connected to the filter element.

The utility model provides a protective helmet, includes helmet body and as above the breathing mask, helmet body is equipped with the guide rail, the breathing mask's express mail with the guide rail is connected or is separated.

The gas mask of the protective helmet is covered on the mouth and the nose of a user, so that the eyes of the user are avoided, the interference between the protective mask and the anti-fragment goggles is avoided, the gas mask can be well compatible with the anti-fragment goggles, the anti-fragment goggles can be worn by the user when the user wears the gas mask, and the fragile parts of the eyes are effectively protected. Further, through setting up the adaptor on the shield, and set up on the adaptor with helmet body's guide rail assorted quick-connect piece, make the breathing mask can hang outward on helmet body's guide rail, thereby use the one-hand operation can accomplish the operation of wearing to take off, when not needing the breathing mask, can dismantle quick-connect piece from the guide rail of helmet, and then make breathing mask and helmet separation, when carrying out the task under poisonous substance or dust environment, the quick-connect piece that again can make the breathing mask can be connected with helmet body's guide rail fast, and then make breathing mask and helmet body fixed mutually.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a respirator according to one embodiment;

FIG. 2 is a front view of the respirator shown in FIG. 1;

FIG. 3 is a left side view of the respirator shown in FIG. 1;

FIG. 4 is a rear view of the respirator shown in FIG. 1.

Description of reference numerals:

10. a protective cover; 11. an intake valve; 12. an air outlet valve; 13. a cover body; 14. a housing; 141. a first connection portion; 142. a second connecting portion; 20. a filter member; 30. a transfer belt; 31. a quick connection part; 32. a reinforcement.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, fig. 1 shows a schematic structural diagram of a respirator according to an embodiment of the present invention, which includes aprotective cover 10, afilter member 20, and anadaptor 30. Wherein, theprotection mask 10 is used for covering the mouth and the nose of a user, and theprotection mask 10 is provided with anair inlet valve 11 and anair outlet valve 12. Thefilter element 20 is connected to theintake valve 11. One end of theadaptor 30 is connected with theprotective cover 10, and the other end of theadaptor 30 is provided with aquick connector 31, and thequick connector 31 is used for connecting a helmet.

Specifically, theshield 10 is a half-face shield, and theshield 10 has an arc that substantially matches the contours of the user's nose and mouth, thereby allowing theshield 10 to fit snugly over the user's nose and mouth. Understandably, theinlet valve 11 and theoutlet valve 12 are both one-way conduction valves, that is, theinlet valve 11 can only suck gas, and theoutlet valve 12 can only discharge gas. Preferably, thefilter member 20 is a canister, and thefilter member 20 is filled with a filtering agent such as activated carbon and/or decomposition enzyme, so that thefilter member 20 can effectively filter toxic gas and dust. Preferably, thefilter element 20 is removably attached to theair inlet valve 11 to facilitate replacement of thefilter element 20. Specifically, the two sides of a general helmet are provided with guide rails for mounting tactical lamps, earphones or goggles, and thequick connector 31 of theadapter 30 is matched with the guide rails of the helmet, so that thequick connector 31 can be quickly connected with the guide rails of the helmet, and the gas mask is fixed with the helmet. Or to enable the quick-connect 31 to be quickly removed from the helmet's guide track, thereby enabling the respirator to be separated from the helmet.

Theprotective cover 10 of the gas mask is covered on the mouth and the nose of a user, so that the eyes of the user are avoided, theprotective cover 10 is prevented from interfering with the anti-fragment goggles, the gas mask is compatible with the anti-fragment goggles well, the user can wear the anti-fragment goggles while wearing the gas mask, and the fragile parts of the eyes are effectively protected. Further, theadapter piece 30 is arranged on theprotective cover 10, and the quick-connectingpiece 31 matched with the guide rail of the helmet is arranged on theadapter piece 30, so that the gas mask can be hung on the guide rail of the helmet, the wearing and taking-off operation can be completed by using one-hand operation, and the emergency capacity of a user is greatly improved.

Further, referring to fig. 2 and 3, theshield 10 includes acover 13 and ahousing 14. Themask body 13 is used for hermetically covering the nose and mouth of a user, themask body 13 is made of soft materials, preferably, themask body 13 can be made of soft materials such as silica gel, and therefore themask body 13 can be tightly attached to the face of the user, air leakage is avoided, and protection safety is improved. Theshell 14 covers thecover body 13, and theshell 14 is made of an impact-resistant material. Preferably, thehousing 14 is made of an impact resistant material, such as explosion proof glass, pvc plastic, etc., to provide protection to theflexible enclosure 13 and the nose and mouth of the user.

Furthermore, theair inlet valve 11 and theair outlet valve 12 are integrally formed with thehousing 14, an air inlet hole and an air outlet hole are formed in thehousing 14, the air inlet hole is communicated with theair inlet valve 11, and the air outlet hole is communicated with theair outlet valve 12. Preferably, theinlet valve 11 and theoutlet valve 12 are integrally formed with thehousing 14 by injection molding.

Further, theprotective cover 10 is provided with at least twoair inlet valves 11, and theair inlet valves 11 are detachably connected to thefilter member 20, and preferably, theair inlet valves 11 are threadedly connected to thefilter member 20, so that thefilter member 20 can be quickly disassembled without using an additional tool. Further, the respirator further includes a sealing cap, and theair intake valve 11 may be selectively coupled to thefilter member 20 or the sealing cap. For example, theprotective cover 10 is provided with a plurality ofair inlet valves 11, a part of the plurality ofair inlet valves 11 is connected with thefilter member 20, and the other part of the plurality ofair inlet valves 11 is provided with a sealing cover for sealing, so that a user can select the number of thefilter members 20 arranged on theprotective cover 10 according to the concentration of poison or dust, thereby further improving the protective capability of the gas mask and improving the economy. Further, thehood 10 may be provided with at least oneair outlet valve 12, thereby improving the comfort of the respirator.

Further, thehousing 14 is provided with afirst connection portion 141 and asecond connection portion 142 spaced apart from each other, and theadaptor 30 is connected to thefirst connection portion 141. The respirator also includes areinforcement member 32, one end of thereinforcement member 32 being connected to the second connectingportion 142 and the other end of thereinforcement member 32 being connected to theadapter member 30. The respirator is more stable when worn by connecting theadaptor 30 and thereinforcement 32 to different positions outside. Preferably, theadaptor 30 and thestiffener 32 are made of elastic materials, for example, theadaptor 30 and thestiffener 31 are elastic strips, so that the respirator can be tightly fastened on the face of the user by the elastic force of theadaptor 30 and thestiffener 32, thereby improving the protection of the respirator.

Further, referring to fig. 4, the respirator also includes a communication module disposed on a side of thecover 13 remote from thehousing 14. The communication module is used for remote communication of users, is limited by cost and social technical conditions in the past, and military polices tend to communicate and transmit commands in a semaphore or a hand mode when executing tasks. By integrating the communication module on the gas mask, the communication efficiency and the accuracy of command transmission are improved. Preferably, the communication module includes a bluetooth transceiver and a microphone, and the bluetooth transceiver is electrically connected to the microphone. Can realize real-time wireless communication through bluetooth transceiver and microphone, compare in traditional intercom and film microphone, this application communication module adopts bluetooth communication, and communication quality is good, and the simple operation.

Preferably, thequick connector 31 is a buckle, and the buckle is provided with an inverted buckle for being hung on a guide rail of the helmet, so that thequick connector 31 can be quickly clamped with or separated from the clamping position on the guide rail of the helmet. It should be noted that the quick connector can also be a magnetic connector, and further, a magnetic connector can be arranged on the guide rail of the helmet, and the magnetic connector is used for being magnetically connected with the magnetic connector arranged on the guide rail of the helmet, and also can realize quick connection or separation of the quick connector and the helmet guide rail. In addition, the quick-connect component 31 can also be a first magic buckle, a second magic buckle can be arranged on the guide rail of the helmet, and the quick disassembly and assembly of the gas mask can also be realized by connecting the first magic buckle with the second magic buckle. Further, thequick connector 31 and the guide rail of the helmet can be connected by adhesion, which is not described herein.

Further, another embodiment of the present application also provides a protective helmet, and the protective helmet of an embodiment includes a helmet body and a gas mask, the helmet body is provided with a guide rail, and the gas mask includes aprotective cover 10, afilter 20 and anadaptor 30. Wherein, theprotection mask 10 is used for covering the mouth and the nose of a user, and theprotection mask 10 is provided with anair inlet valve 11 and anair outlet valve 12. Thefilter element 20 is connected to theintake valve 11. One end of theadapter piece 30 is connected with theprotective cover 10, the other end of theadapter piece 30 is provided with a quick-connectingpiece 31, and the quick-connectingpiece 31 of the gas mask can be connected with or separated from the guide rail.

Specifically, the both sides of helmet body all are equipped with the guide rail, and the guide rail is used for installing tactics lamps and lanterns, earphone or goggles. The quick-connectingpiece 31 of theadapter 30 is matched with the guide rail of the helmet, and preferably, the quick-connectingpiece 31 is provided with an inverted buckle which is hung on the guide rail of the helmet body, so that the quick-connectingpiece 31 can be quickly connected with the guide rail of the helmet, and the gas mask is fixed with the helmet. Or to enable the quick-connect 31 to be quickly removed from the helmet's guide track, thereby enabling the respirator to be separated from the helmet.

Specifically, theshield 10 is a half-face shield, and theshield 10 has an arc that substantially matches the contours of the user's nose and mouth, thereby allowing theshield 10 to fit snugly over the user's nose and mouth. Understandably, theinlet valve 11 and theoutlet valve 12 are both one-way conduction valves, that is, theinlet valve 11 can only suck gas, and theoutlet valve 12 can only discharge gas. Preferably, thefilter member 20 is a canister, and thefilter member 20 is filled with a filtering agent such as activated carbon and/or decomposition enzyme, so that thefilter member 20 can effectively filter toxic gas and dust. Preferably, thefilter element 20 is removably attached to theair inlet valve 11 to facilitate replacement of thefilter element 20. The quick-connect piece 31 of theadapter piece 30 is matched with the guide rail of the helmet, so that the quick-connect piece 31 can be quickly connected with the guide rail of the helmet, and the gas mask is fixed with the helmet. Or to enable the quick-connect 31 to be quickly removed from the helmet's guide track, thereby enabling the respirator to be separated from the helmet.

Further, referring to fig. 2 and 3, theshield 10 includes acover 13 and ahousing 14. Themask body 13 is used for hermetically covering the nose and mouth of a user, themask body 13 is made of soft materials, preferably, themask body 13 can be made of soft materials such as silica gel, and therefore themask body 13 can be tightly attached to the face of the user, air leakage is avoided, and protection safety is improved. Theshell 14 covers thecover body 13, and theshell 14 is made of an impact-resistant material. Preferably, thehousing 14 is made of an impact resistant material, such as explosion proof glass, pvc plastic, etc., to provide protection to theflexible enclosure 13 and the nose and mouth of the user.

Furthermore, theair inlet valve 11 and theair outlet valve 12 are integrally formed with thehousing 14, an air inlet hole and an air outlet hole are formed in thehousing 14, the air inlet hole is communicated with theair inlet valve 11, and the air outlet hole is communicated with theair outlet valve 12. Preferably, theinlet valve 11 and theoutlet valve 12 are integrally formed with thehousing 14 by injection molding.

Further, theprotective cover 10 is provided with at least twoair inlet valves 11, and theair inlet valves 11 are detachably connected to thefilter member 20, and preferably, theair inlet valves 11 are threadedly connected to thefilter member 20, so that thefilter member 20 can be quickly disassembled without using an additional tool. Further, the respirator further includes a sealing cap, and theair intake valve 11 may be selectively coupled to thefilter member 20 or the sealing cap. For example, theprotective cover 10 is provided with a plurality ofair inlet valves 11, a part of the plurality ofair inlet valves 11 is connected with thefilter member 20, and the other part of the plurality ofair inlet valves 11 is provided with a sealing cover for sealing, so that a user can select the number of thefilter members 20 arranged on theprotective cover 10 according to the concentration of poison or dust, thereby further improving the protective capability of the gas mask and improving the economy. Further, thehood 10 may be provided with at least oneair outlet valve 12, thereby improving the comfort of the respirator.

Further, thehousing 14 is provided with afirst connection portion 141 and asecond connection portion 142 spaced apart from each other, and theadaptor 30 is connected to thefirst connection portion 141. The respirator also includes areinforcement member 32, one end of thereinforcement member 32 being connected to the second connectingportion 142 and the other end of thereinforcement member 32 being connected to theadapter member 30. The respirator is more stable when worn by connecting theadaptor 30 and thereinforcement 32 to different positions outside. Preferably, theadaptor 30 and thestiffener 32 are made of elastic materials, for example, theadaptor 30 and thestiffener 31 are elastic strips, so that the respirator can be tightly fastened on the face of the user by the elastic force of theadaptor 30 and thestiffener 32, thereby improving the protection of the respirator.

Further, referring to fig. 4, the respirator also includes a communication module disposed on a side of thecover 13 remote from thehousing 14. The communication module is used for remote communication of users, is limited by cost and social technical conditions in the past, and military polices tend to communicate and transmit commands in a semaphore or a hand mode when executing tasks. By integrating the communication module on the gas mask, the communication efficiency and the accuracy of command transmission are improved. Preferably, the communication module includes a bluetooth transceiver and a microphone, and the bluetooth transceiver is electrically connected to the microphone. Can realize real-time wireless communication through bluetooth transceiver and microphone, compare in traditional intercom and film microphone, this application communication module adopts bluetooth communication, and communication quality is good, and the simple operation.

Furthermore, thequick connector 31 is a buckle, a reverse buckle is arranged on the buckle, a clamping position matched with the reverse buckle is arranged on the guide rail of the helmet, and the reverse buckle is used for being hung on the clamping position of the guide rail of the helmet, so that thequick connector 31 can be quickly clamped with or separated from the clamping position on the guide rail of the helmet. It should be noted that the quick connector can also be a magnetic connector, and further, a magnetic connector can be arranged on the guide rail of the helmet, and the magnetic connector is used for being magnetically connected with the magnetic connector arranged on the guide rail of the helmet, and also can realize quick connection or separation of the quick connector and the helmet guide rail. In addition, the quick-connect component 31 can also be a first magic buckle, a second magic buckle can be arranged on the guide rail of the helmet, and the quick disassembly and assembly of the gas mask can also be realized by connecting the first magic buckle with the second magic buckle. Further, thequick connector 31 and the guide rail of the helmet can be connected by adhesion, which is not described herein.

The gas mask of the protective helmet is covered on the mouth and the nose of a user, so that the eyes of the user are avoided, the interference between the protective mask and the anti-fragment goggles is avoided, the gas mask can be well compatible with the anti-fragment goggles, the anti-fragment goggles can be worn by the user when the user wears the gas mask, and the fragile parts of the eyes are effectively protected. Further, through set upadaptor 30 onprotection casing 10, and set up onadaptor 30 with helmet body's guide rail assorted quick-connect 31, make the breathing mask can hang outward on helmet body's guide rail, thereby use one-hand operation can accomplish the operation of wearing and taking off, when not needing the breathing mask, can dismantle quick-connect 31 from the guide rail of helmet, and then make breathing mask and helmet separation, when carrying out the task under poisonous substance or dust environment, can make breathing mask's quick-connect 31 again can be connected with helmet body's guide rail fast, and then make breathing mask and helmet body fixed mutually.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A respirator, comprising:

the protective cover is used for covering the mouth and the nose of a user and is provided with an air inlet valve and an air outlet valve;

a filter element coupled to the intake valve; and the number of the first and second groups,

the one end of adaptor with the protection casing is connected, the other end of adaptor is equipped with the fast union piece, the fast union piece is used for connecting the guide rail of helmet.

2. The respirator of claim 1, wherein the protective hood comprises:

the mask body is used for hermetically covering the mouth and the nose of a user and is made of soft materials;

the shell covers the cover body and wraps the cover body, and the shell is made of an impact-resistant material.

3. The respirator of claim 2, wherein the inlet valve and the outlet valve are integrally formed with the housing, the housing having an inlet aperture in communication with the inlet valve and an outlet aperture in communication with the outlet valve.

4. The respirator of claim 2 wherein the shell has first and second spaced apart connecting portions, the adapter being connected to the first connecting portion, the respirator further comprising a reinforcing member having one end connected to the second connecting portion and the other end connected to the adapter.

5. The respirator of claim 4, wherein the adapter and the reinforcement are each made of a resilient material.

6. The respirator of claim 2 further comprising a communication module disposed on a side of the hood remote from the housing.

7. The respirator of claim 6, wherein the communication module comprises a bluetooth transceiver and a microphone, the bluetooth transceiver being electrically connected to the microphone.

8. The respirator of claim 1, wherein the quick-connect member is a buckle having an inverted buckle for hanging on a guide rail of the helmet; or the quick connecting piece is a magnetic part which is used for being connected with a magnetic part arranged on the guide rail of the helmet in a magnetic way.

9. The respirator according to claim 1 wherein the shield is provided with at least two air admittance valves, the air admittance valves being removably connected to the filter element.

10. A protective helmet comprising a helmet body and a respirator according to any one of claims 1 to 9, the helmet body being provided with a guide track to which a quick-connect element of the respirator is connected or disconnected.

Images