CN215653491U - Protective device - Google Patents

Abstract

The utility model discloses a protective tool, which comprises: the temperature-adjusting mask comprises a central mask part, a shielding mask part, a sealing mask part, a temperature-adjusting module and a purifying module, wherein a breathing cavity opposite to the mouth and the nose is defined on one side of the central mask part facing to the face, the breathing cavity is provided with an air inlet and an air outlet, and the air outlet is communicated with the external space; the shielding cover part is connected with the central cover part and is positioned on one side of the central cover part, which is far away from the face part; the sealed cover part is connected with the shielding cover part to define an air inlet channel separated from the external space, the air inlet channel is provided with an air inlet and an air outlet, the air inlet is communicated with the external space, and the air outlet is communicated with the air inlet; at least part of the temperature adjusting module is arranged in the air inlet channel, and the temperature adjusting module is used for adjusting the temperature of air flow in the air inlet channel; the purification module is arranged at least one of the air inlet and the air inlet. According to the protective tool, the wearing comfort of a user can be improved.

Description

Protective device

Technical Field

The utility model relates to the technical field of protective articles, in particular to a protective tool.

Background

In daily life, the propagation of viruses such as poor and influenza of air quality for people attach importance to the precaution to ambient gas gradually, and common mode wears the gauze mask for going out, but in the wearing process of gauze mask, when the temperature of environment is higher or lower, all can cause the facial discomfort of wearer.

SUMMERY OF THE UTILITY MODEL

The utility model provides a protective tool which has the advantage of good comfort.

A protective gear according to an embodiment of the utility model comprises: the mask comprises a central mask part, wherein a breathing cavity opposite to the mouth and the nose is defined on one side of the central mask part facing to the face, the breathing cavity is provided with an air inlet and an air outlet, and the air outlet is communicated with the external space; the shielding cover part is connected with the central cover part and is positioned on one side of the central cover part, which is far away from the face part; the air inlet channel is provided with an air inlet and an air outlet, the air inlet is communicated with the external space, and the air outlet is communicated with the air inlet; the temperature adjusting module is at least partially arranged in the air inlet channel and is used for adjusting the temperature of air flow in the air inlet channel; and the purification module is arranged at least one of the air inlet and the air inlet.

According to the protective tool provided by the embodiment of the utility model, at least part of the temperature adjusting module is arranged in the air inlet channel, so that after air in an external space enters the air inlet channel through the air inlet, the temperature of the entering air flow can be adjusted to a more comfortable temperature by the temperature adjusting module, the temperature of the adjusted air flow is discharged into the breathing cavity through the air outlet and the air inlet so as to adjust the temperature in the breathing cavity, namely, the temperature of the breathing cavity can be kept at the more comfortable temperature by the temperature adjusting module, the face area of a user covered by the central cover part is in a more proper temperature environment, and the wearing comfort of the user can be further improved.

In some embodiments of the present invention, there are two air inlets, two air inlets are distributed on the left and right sides of the central cover portion, and two air inlet channels are provided, and the two air inlet channels correspond to the two air inlets one to one.

In some embodiments of the utility model, two temperature adjusting modules are provided, and the two temperature adjusting modules correspond to the two air inlet channels one by one.

In some embodiments of the utility model, the sealing cover part is provided with a mounting cavity, the bottom wall of the mounting cavity is provided with an opening communicated with the air inlet channel, the temperature adjusting module is arranged in the opening in a penetrating manner, and the outer peripheral wall of the temperature adjusting module is connected with the inner peripheral wall of the opening in a sealing manner.

In some embodiments of the present invention, a vent hole is provided on a side wall of the installation cavity, one side of the vent hole is communicated with the air intake channel, and the other side of the vent hole is communicated with the installation cavity.

In some embodiments of the utility model, the tempering module comprises: the semiconductor refrigeration piece, the semiconductor refrigeration piece has first heat dissipation end and second heat dissipation end, first heat dissipation end is located in the inlet air duct, the at least part of second heat dissipation end is located the installation intracavity.

In some embodiments of the utility model, the sealing cover part is provided with an exhaust channel facing away from the shielding cover part, one end of the exhaust channel is communicated with the installation cavity, and the other end of the exhaust channel is communicated with the external space.

In some embodiments of the present invention, two exhaust passages are provided, and the two exhaust passages are distributed on two opposite sides of the installation cavity.

In some embodiments of the utility model, the protective gear further comprises: the first shell is connected with one side, which is far away from the shielding cover part, of the sealing cover part, and the temperature adjusting module is arranged on one side, which is far towards the sealing cover part, of the first shell.

In some embodiments of the present invention, the first housing is a heat conducting member, and the second heat dissipating end is connected to the first housing through a heat conducting sheet.

In some embodiments of the utility model, the protective gear further comprises: a second housing replaceably connected with the first housing and the boot seal portion, the second housing adapted to shield the mounting cavity to separate the mounting cavity from an external space.

In some embodiments of the utility model, the first housing is connected with the sealing cover portion in a clamping manner or in a magnetic attraction manner, and the second housing is connected with the sealing cover portion in a clamping manner or in a magnetic attraction manner.

In some embodiments of the utility model, a side of the second housing facing the sealing cover portion is provided with a sealing member adapted to seal in the mounting cavity to seal the mounting cavity from the external space.

In some embodiments of the utility model, a side of the blocking cover portion facing away from the central cover portion is provided with a spacer bar, a side of the spacer bar facing away from the blocking cover portion abuts against the sealing cover portion, the spacer bar defines a separation chamber separated from the air inlet channel with the blocking cover portion and the sealing cover portion, the protective appliance further comprises: and the electric control module is connected with the temperature adjusting module and is arranged in the separation cavity.

In some embodiments of the present invention, an air inlet frame is disposed on a side of the shielding cover portion facing the central cover portion, the air inlet frame defines the air inlet, and the purifying module is connected to the air inlet frame in a clamping manner.

In some embodiments of the utility model, the protective gear further comprises: and the air supply module is arranged in the air inlet channel and is suitable for driving airflow to flow from the air inlet to the air inlet.

In some embodiments of the present invention, a filtering module and a one-way exhaust valve are disposed at the exhaust port, and the air exhaled to the breathing cavity is adapted to be exhausted to an external space through the filtering module and the one-way exhaust valve.

In some embodiments of the utility model, the central boot portion is a flexibly deformable unitary piece.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is an exploded view of a protective gear according to an embodiment of the utility model;

FIG. 2 is a rear view of a protective gear according to an embodiment of the utility model;

FIG. 3 is a front view of a visor portion of a protective appliance according to an embodiment of the present invention;

FIG. 4 is a front view of a sealed hood portion of a protective appliance according to an embodiment of the present invention;

FIG. 5 is a perspective view of a sealed hood portion of a protective appliance according to an embodiment of the present invention;

FIG. 6 is a perspective view of a first housing and a temperature regulating module of the protective gear according to an embodiment of the utility model;

FIG. 7 is a perspective view of a temperature conditioning module of a protective appliance according to an embodiment of the utility model;

FIG. 8 is a perspective view of a blower module, a shield hood section, and a center hood section of a protective appliance according to an embodiment of the present invention;

figure 9 is a partial exploded view of a protective gear according to an embodiment of the utility model.

Reference numerals:

a protective appliance 100;

a central cover part 1; a breathing chamber 11; an air inlet 12; an exhaust port 13; a filtration module 14;

a shielding cover part 2; an air intake passage 21; an air inlet 22; an air outlet 23; a dividing strip 24; a separation chamber 25; an air intake frame 26;

a sealing cover part 3; a mounting cavity 31; an open mouth 32; a vent hole 33; an exhaust passage 34; a reinforcing rib 35;

a temperature adjusting module 4; a semiconductor refrigerating sheet 41; a first heat dissipation end 411; a second heat dissipating end 412; the heat-dissipating fins 42;

a purification module 5; a first housing 6; a heat conductive sheet 61; a second housing 7; an electronic control module 8;

an air supply module 9; a centrifugal wind wheel 91; the air duct member 92.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

A protective gear 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, a protective tool 100 according to an embodiment of the present invention includes: the temperature control device comprises a central cover part 1, a shielding cover part 2, a sealing cover part 3, a temperature control module 4 and a purification module 5. Wherein, the side of the central cover part 1 facing the face defines a breathing cavity 11 opposite to the mouth and the nose, the breathing cavity 11 is provided with an air inlet 12 and an air outlet 13, and the air outlet 13 is communicated with the external space. Specifically, when the user wears the protective equipment 100, the central hood portion 1 can better cover the mouth and nose area of the user, so that the central hood portion 1 can better separate the external space and the breathing cavity 11, thereby avoiding the risk that the droplets carrying viruses and the like in the external space enter the breathing cavity 11 to cause the inhalation of the user to harm health and safety. In addition, during the wearing process of the protective device 100, the nose and mouth of the user are located in the breathing cavity 11, so that the gas exhaled by the user directly enters the breathing cavity 11 and is further exhausted into the external space through the exhaust port 13, that is, the gas exhaled by the user during the wearing process of the protective mask can be exhausted out of the breathing cavity 11 through the exhaust port 13. From this, can avoid the gas of user's exhalation to be detained in respiratory cavity 11 betterly to can improve the user and wear the suffocation that protective device 100 leads to for a long time, and then can promote the travelling comfort that the user wore.

As shown in fig. 1, the shield cover portion 2 is connected to the central cover portion 1, and the shield cover portion 2 is located on a side of the central cover portion 1 away from the face portion. Therefore, the shielding cover part 2 can have a good protection effect on the central cover part 1. In one specific example of the present invention, the shield hood section 2 extends along the contour of the face in the length direction of the shield hood section 2, so that the shield hood section 2 can have a good protective effect against the face of the wearer in the extending direction of the shield hood section 2, whereby discomfort caused to the face such as wind blow can be reduced.

Further, as shown in fig. 1 to 3, the sealing cover part 3 is connected to the shielding cover part 2 to define an air intake passage 21 separated from an external space, the air intake passage 21 having an air intake opening 22 and an air outlet opening 23, the air intake opening 22 communicating with the external space, the air outlet opening 23 communicating with the air intake opening 12. Specifically, when the user wears the protective device 100, the air in the external space can enter the air intake channel 21 through the air inlet 22, and further enter the breathing chamber 11 through the air outlet 23 and the air inlet 12, i.e., an air flow channel is formed between the external space and the breathing chamber 11. Therefore, fresh air in the external space can enter the breathing cavity 11 through the air inlet 22, the air inlet channel 21, the air outlet 23 and the air inlet 12, so that the user can inhale the fresh air, and the comfort of the user wearing the protective tool 100 is improved.

Moreover, the gas exhaled by the user can be exhausted from the breathing cavity 11 through the exhaust port 13 and exhausted into the external space, that is, the air flow is formed between the breathing cavity 11 and the external space, so that the suffocation caused by the fact that the user wears the protective tool 100 for a long time can be improved, and the wearing comfort of the protective tool 100 can be further improved. Secondly, can block better like the entering air inlet channel 21 of the droplet of carrying the virus etc. through sealed cover portion 3 and sheltering from cover portion 2, block effectively promptly that the droplet of carrying the virus etc. gets into in the respiratory cavity 11 to can ensure user's health safety.

Wherein, the temperature adjusting module 4 is at least partially arranged in the air inlet channel 21, and the temperature adjusting module 4 is used for adjusting the temperature of the air flow in the air inlet channel 21. It is understood that it is possible that parts of the tempering module 4 are located in the air inlet channel 21; or the temperature adjusting module 4 is completely positioned in the air inlet channel 21, so that the interference of the external environment on the temperature adjusting module 4 can be better reduced through the sealing cover part 3 and the shielding cover part 2, and the stable operation of the temperature adjusting module 4 is ensured. In addition, at least part of the temperature adjusting module 4 is arranged in the air inlet channel 21, the space occupied by the breathing cavity 11 after the temperature adjusting module 4 is installed can be avoided better, and the layout is reasonable. Therefore, the breathing cavity 11 can have a larger space, so that the suffocation caused by the fact that a user wears the protective appliance 100 for a long time can be improved, and the wearing comfort of the protective appliance 100 can be improved.

It should be noted that the temperature in the intake air channel 21 can be adjusted to increase or decrease the temperature of the airflow in the intake air channel 21. In other words, the user can control the temperature of the air flow in the air inlet channel 21 through the temperature adjustment module 4 to be at a more comfortable temperature, and then when the temperature is more comfortable air flow enters the breathing cavity 11 through the air outlet 23 and the air inlet 12, so that the temperature in the breathing cavity 11 is at a more comfortable temperature, and then the wearing comfort of the protective device 100 can be improved.

Specifically, when the ambient temperature of the external space is low, for example, when the user wears the protective device 100 in winter, the temperature of the airflow in the air intake passage 21 can be raised by the temperature adjustment module 4, the airflow after temperature rise enters the breathing cavity 11 through the air outlet 23 and the air inlet 22 to raise the temperature in the breathing cavity 11, so that the facial area covered by the central cover portion 1 of the user can be in a warmer environment, and the user can inhale warmer air, so that discomfort caused by the inhalation of cold air in the external space into the lungs can be reduced, and the wearing comfort of the protective device 100 can be raised.

In addition, when the ambient temperature of the external space is higher, for example, when the user wears the protective device 100 in summer, the temperature in the air intake passage 21 can be reduced by the temperature adjusting module 4, and the cooled air flow enters the breathing cavity 11 through the air outlet 23 and the air inlet 22 to reduce the temperature in the breathing cavity 11, so that the face area covered by the central cover part 1 can be in a cooler environment, and the wearing comfort of the user can be improved.

Further, the purification module 5 is provided at least one of the intake vent 22 and the intake port 12. That is, the air in the external space flows through at least one purification module 5 during the process of entering the breathing chamber 11 through the air inlet 22 and the air inlet 12. It will be appreciated that the purification module 5 may advantageously perform a degerming and/or haze removal and/or dust removal treatment of the airflow passing therethrough. From this, can guarantee the cleanliness factor of the air that gets into respiratory cavity 11 through air intake 22 and air inlet 12 betterly, can avoid pollutants such as bacterium, dust, haze to get into user's lung for the user can inhale clean air, thereby can promote protective apparatus 100 to user's protective capacities, and then can ensure user's health safety.

Wherein, can only set up purification module 5 in air intake 22, when making the gas of exterior space get into air intake passage 21 through air intake 22, purification module 5 that sets up in air intake 22 department can carry on the degerming and/or remove haze and/or dust removal to the air current that passes through it well and handle, thus guarantee the cleanness, the health of the gas in the air intake passage 21, in order to guarantee the cleanness, the health of the air current that gets into breathing chamber 11 through air intake 12 in the air intake passage 21, make the user can inhale clean air; or the purification module 5 can be arranged at the position of the air inlet 12, that is, when the air in the air inlet channel 21 enters the breathing cavity 11 through the air inlet 12, the purification module 5 arranged at the air inlet 12 can better perform degerming and/or haze removal and/or dust removal treatment on the air flow passing through the purification module, so as to ensure the cleanness and sanitation of the air entering the breathing cavity 11; or all set up purification module 5 at air intake 22 and air inlet 12, when exterior space's gas passes through air intake 22 and gets into inlet air duct 21, the purification module 5 that sets up in air intake 22 department can carry out the degerming and/or remove haze and/or dust removal processing to the air current through it better, when air in the inlet air duct 21 passes through air inlet 12 and gets into respiratory cavity 11, the purification module 5 that sets up in air inlet 12 department can carry out the degerming and/or remove haze and/or dust removal processing to the air current through it again, namely, exterior space's air gets into respiratory cavity 11 after through twice purification processing, further promote the cleanliness factor of the gas that gets into respiratory cavity 11.

According to the protective device 100 of the embodiment of the utility model, at least part of the temperature adjusting module 4 is arranged in the air inlet channel 21, so that after air in an external space enters the air inlet channel 21 through the air inlet 22, the temperature adjusting module 4 can adjust the temperature of the entering air flow to a more comfortable temperature, and the air flow after temperature adjustment is discharged into the breathing cavity 11 through the air outlet 23 and the air inlet 12 to adjust the temperature in the breathing cavity 11, that is, the temperature of the breathing cavity 11 can be kept at a more comfortable temperature through the temperature adjusting module 4, so that the facial area covered by the central cover part 1 of the user is in a more suitable temperature environment, and the wearing comfort of the user can be further improved.

In some embodiments of the present invention, as shown in fig. 2 and 3, two air inlets 12 are provided, two air inlets 12 are distributed on the left and right sides of the central cover portion 1, two air inlet channels 21 are provided, and the two air inlet channels 21 correspond to the two air inlets 12 one by one. That is, when the user wears the protective device 100, air in the external space can pass through the two air intake passages 21 and enter the breathing chamber 11 through the air inlets 12 on the left and right sides. From this, can increase respiratory cavity 11's the position and the air input of admitting air betterly to accelerate the air velocity in the respiratory cavity 11, thereby guarantee that the user can inhale fresh air, and, through the air inlet 12 of the left and right sides, make the gas distribution that gets into in the respiratory cavity 11 more even, thereby can guarantee user's smooth and easy breathing, thereby can improve the user and wear the suffocation that protective device 100 leads to for a long time, and then can promote the travelling comfort that the user wore.

In a specific example, as shown in fig. 2 and fig. 3, two air inlet channels 21 are symmetrically distributed on the left and right sides of the shielding cover portion 2, and both the two air inlet channels 21 form the air inlet 22 facing the face portion, so that the air inlet 22 can be better hidden, thereby reducing the influence of the air inlet 22 on the appearance of the protective tool 100.

In some embodiments of the present invention, as shown in fig. 6, two temperature adjusting modules 4 are provided, and two temperature adjusting modules 4 correspond to two air inlet channels 21 one by one. That is to say, all be equipped with corresponding temperature regulating module 4 in every inlet air duct 21, two temperature regulating module 4 can adjust the air current temperature in corresponding inlet air duct 21 to all adjust the air current in two inlet air duct 21 to comparatively comfortable temperature. And, the temperature-adjusted air flow in the two air intake channels 21 can be discharged into the breathing cavity 11 through the corresponding air inlet 12. Therefore, the temperature adjusting efficiency in the breathing cavity 11 can be improved well, so that the user can feel the temperature change of the face area more quickly, and the wearing comfort of the user can be improved.

In some embodiments of the present invention, as shown in fig. 4, the sealing cover portion 3 is provided with a mounting cavity 31, the bottom wall of the mounting cavity 31 is provided with an opening 32 communicated with the air intake channel 21, and the temperature regulating module 4 is inserted into the opening 32. Specifically, in the installation process of the temperature adjustment module 4, the temperature adjustment module 4 is inserted into the open hole 32, so that the installation position of the temperature adjustment module 4 can be quickly positioned, and the installation difficulty of the temperature adjustment module 4 can be reduced. Moreover, after the temperature adjusting module 4 is installed, the opening 32 can better limit the circumferential movement of the temperature adjusting module 4, so that the stability of the temperature adjusting module 4 after installation is improved.

Moreover, the temperature adjusting module 4 can adjust the temperature of the airflow in the air inlet channel 21 towards one end of the air inlet channel 21, and the airflow in the air inlet channel 21 flows into the breathing cavity 11, so that the face area covered by the central cover part 1 of the user can be in an environment with a proper temperature. And when the cold gas in the external space enters the breathing cavity 11 through the air inlet 22 and the air inlet 12, the temperature adjusting module 4 can enable the user to inhale warmer gas by increasing the temperature of the air flow in the air inlet channel 21, so that the discomfort caused by the cold gas in the external space inhaled into the lung can be reduced, and the wearing comfort of the user can be further improved.

Further, the outer circumferential wall of the temperature module 4 is sealingly connected to the inner circumferential wall of the opening 32. That is to say, after the temperature adjustment module 4 is installed, the temperature adjustment module 4 can better block the gas flow in the installation cavity 31 and the air inlet channel 21, so that the heat can be better blocked from being transferred between the installation cavity 31 and the air inlet channel 21 through the gas flow, the mutual interference of the temperature between the installation cavity 31 and the air inlet channel 21 can be reduced, and the temperature adjustment efficiency of the temperature adjustment module 4 can be ensured.

In some embodiments of the present invention, a ring of sealing ring made of silica gel or sponge is adhered to the outer peripheral wall of the temperature adjusting module 4. Wherein can understand, silica gel and sponge material deformability are good, make when the installation of module 4 adjusts the temperature, through the sealing washer that extrusion silica gel or sponge were made, make the sealing washer that silica gel or sponge were made can pack better on the clearance between the periphery wall of module 4 and the internal perisporium of opening 32 adjusts the temperature, further promote the sealed effect between module 4 and the opening 32 that adjusts the temperature, flow between inlet channel 21 and installation cavity 31 in order to block the air current, thereby can reduce the mutual interference of temperature between installation cavity 31 and the inlet channel 21, and then guarantee the temperature regulation efficiency of module 4 adjusts the temperature.

Moreover, since the texture of the silica gel and the sponge is soft, the friction between the outer peripheral wall of the temperature control module 4 and the inner peripheral wall of the opening 32 can be prevented in the process of inserting the temperature control module 4 into the opening 32, and the safety is high.

In some embodiments of the present invention, a vent hole 33 is provided on a side wall of the mounting cavity 31, one side of the vent hole 33 is communicated with the air intake channel 21, and the other side of the vent hole 33 is communicated with the mounting cavity 31. That is, after the temperature control module 4 is mounted, the mounting cavity 31 communicates with the air intake duct 21 through the vent hole 33. Specifically, after the air in the external space enters the air intake channel 21 through the air inlet 22, part of the air flow in the air intake channel 21 can enter the installation cavity 31 through the vent hole 33, so as to accelerate the air flow in the installation cavity 31. It can be understood that, in the process of flowing gas in the installation cavity 31, the heat dissipation of the temperature regulation module 4 can be better realized through the contact heat exchange between the gas flow and the temperature regulation module 4, so as to ensure the stability of the operation of the temperature regulation module 4.

In some embodiments of the utility model, as shown in fig. 7, the tempering module 4 comprises: the semiconductor refrigeration piece 41 is provided with a first heat dissipation end 411 and a second heat dissipation end 412, the first heat dissipation end 411 is located in the air inlet channel 21, and at least part of the second heat dissipation end 412 is located in the mounting cavity 31. It can be understood that the semiconductor cooling plate 41 can control the temperature adjustment by controlling the flowing direction and the magnitude of the current, and the semiconductor cooling plate has a small size, so that the installation space occupied by the temperature adjustment module 4 can be better saved.

Specifically, when the user needs to raise the temperature in the breathing cavity 11, for example, when the user wears the protective device 100 in winter, the first heat dissipation end 411 is a hot end, the second heat dissipation end 412 is a cold end, the temperature of the hot end gradually rises in the process of absorbing heat, so that the temperature of the air flow in the air intake channel 21 continuously rises, the air flow after temperature rise is discharged into the breathing cavity 11 through the air inlet 12, so that the temperature in the breathing cavity 11 continuously rises, so that the facial area covered by the central cover portion 1 can be in a warmer environment, and the user can inhale warmer air, so that the discomfort caused by the cold air in the outer space inhaled into the lung can be reduced, and the wearing comfort of the protective device 100 can be improved.

In addition, when the user need reduce the temperature in respiratory cavity 11, for example, when the user wears protective apparatus 100 in summer, first heat dissipation end 411 is the cold junction, second heat dissipation end 412 is the hot junction, the cold junction is at the in-process temperature decline gradually of heat absorption, make the air current temperature in inlet air duct 21 constantly descend, the air current after the cooling discharges into respiratory cavity 11 through air inlet 12 in, make the temperature in respiratory cavity 11 constantly reduce, make the user can be in comparatively cool environment by the facial region that central cover portion 1 covered, thereby can promote the travelling comfort that the user wore.

In addition, in the temperature adjustment process of the semiconductor refrigeration sheet 41, when the temperature difference between the cold end and the hot end reaches a certain value, the temperature of the cold end and the temperature of the hot end do not change any more, so that the temperature of the cold end cannot be reduced to a certain value to ensure that the temperature of the hot end rises continuously. Therefore, by arranging the vent holes 33, partial airflow in the air inlet channel 21 can enter the installation cavity 31 through the vent holes 33, and the heat dissipation efficiency of the second heat dissipation end 412 can be improved through the contact heat exchange between the airflow and the second heat dissipation end 412, so that the temperature difference between the hot end and the cold end is reduced, and the continuous operation of the temperature adjusting module 4 is ensured.

In a specific example of the present invention, as shown in fig. 7, the first heat dissipating end 411 and the second heat dissipating end 412 are each provided with a heat dissipating fin 42. Therefore, by arranging the heat dissipation fins 42, the contact area with air can be increased well, so that heat on the first heat dissipation end 411 and the second heat dissipation end 412 can be well contacted with air for heat exchange after being transferred to the heat dissipation fins 42, and the heat dissipation efficiency of the first heat dissipation end 411 and the second heat dissipation end 412 is improved.

In some embodiments of the utility model, as shown in fig. 4, the seal case portion 3 is provided with an exhaust passage 34 away from the shield case portion 2, one end of the exhaust passage 34 communicating with the mounting chamber 31, and the other end of the exhaust passage 34 communicating with the external space. That is, the installation chamber 31 communicates with the external space through the exhaust passage 34, so that the air flow in the installation chamber 31 can be exhausted to the external space through the exhaust passage 34. Specifically, after a part of the gas in the air intake channel 21 enters the installation cavity 31 through the first through hole, the heat dissipation efficiency of the second heat dissipation end 412 is improved through the contact heat exchange between the gas and the second heat dissipation end 412, and the gas after the heat exchange can be discharged into the external space through the exhaust channel 34. Therefore, the airflow continuously enters the installation cavity 31 to contact with the second heat dissipation end 412 for heat exchange and then is discharged to the external space, so that the heat dissipation of the second heat dissipation end 412 can be continuously performed, the temperature difference between the first heat dissipation end 411 and the second heat dissipation end 412 is reduced, and the continuous operation of the temperature regulation module 4 is ensured.

In some embodiments of the present invention, two exhaust passages 34 are provided, and two exhaust passages 34 are distributed on two opposite sides of the installation cavity 31. That is, the installation chamber 31 communicates with the external space through the two exhaust passages 34, so that the gas in the installation chamber 31 can be exhausted to the external space through the two exhaust passages 34. Therefore, the exhaust efficiency of the gas in the installation cavity 31 to the external space can be better improved, the gas flowing speed in the installation cavity 31 is favorably accelerated, the heat dissipation efficiency of the second heat dissipation end 412 can be improved, the temperature difference between the first heat dissipation end 411 and the second heat dissipation end 412 is further reduced, and the continuous operation of the temperature regulation module 4 is guaranteed. In a specific example of the present invention, as shown in fig. 4, two exhaust channels 34 are respectively disposed on the upper and lower sides of the mounting cavity 31, and one end of the exhaust channel 34 away from the mounting cavity 31 is located on the upper and lower side walls of the sealing cover portion 3.

In some embodiments of the present invention, as shown in fig. 6, the guard 100 further comprises: the first shell 6 is connected with one side of the sealed cover part 3, which is far away from the shielding cover part 2, and the temperature adjusting module 4 is arranged on one side of the first shell 6, which is far towards the sealed cover part 3. From this, make the one end that the module 4 that adjusts the temperature deviates from first shell 6 wear to establish in opening 32 to guarantee that the module 4 that adjusts the temperature of air current in to inlet air duct 21, when the one side that the module 4 that adjusts the temperature deviates from facial can be better with first shell 6 complex, reduced the installation degree of difficulty of the module 4 that adjusts the temperature.

In addition, after the first housing 6 is connected with the sealing cover portion 3, the first housing can better shield the side of the sealing cover portion 3 away from the face portion, namely the outer side of the sealing cover portion 3, so that the sealing cover portion 3 can be well protected, and meanwhile, the mounting cavity 31 can be better covered, so that the protective tool 100 is more attractive. Moreover, since the first housing 6 is located at the outermost side of the protective device 100, substances harmful to the health of the user, such as droplets carrying germs, can be well blocked by the outer wall of the first housing 6, and the first housing 6 can be detached from the sealing cover portion 3 for cleaning, so that the difficulty in cleaning the protective device 100 is reduced.

In some embodiments of the present invention, as shown in fig. 6 and 7, the first housing 6 is a heat conducting member, and the second heat dissipating end 412 is connected to the first housing 6 via a heat conducting sheet 61. Specifically, when the semiconductor chilling plate 41 is operated, the heat of the second heat dissipation end 412 can be transferred to the first housing 6 through the heat conductive plate 61. It can be understood that the area of the outer side of the first housing 6 is larger, so that the contact area between the outer side of the first housing 6 and the external space is also larger, and further, the heat transferred from the second heat dissipation end 412 to the first housing 6 can be better transferred to the external space through the temperature exchange between the first housing 6 and the external space. Therefore, the heat dissipation efficiency of the second heat dissipation end 412 is further improved, so that the temperature difference between the first heat dissipation end 411 and the second heat dissipation end 412 is reduced, and the continuous operation of the temperature regulation module 4 is ensured.

In some embodiments of the present invention, as shown in fig. 9, the protective gear 100 further comprises: a second housing 7, the second housing 7 and the first housing 6 being replaceably attached to the hermetically sealed cover portion 3, the second housing 7 being adapted to shield the mounting chamber 31 so that the mounting chamber 31 is partitioned from an external space. It can be understood that, since the mounting cavity 31 is communicated with the air intake channel 21, when the mounting cavity 31 is spaced apart from the external space, the air in the external space can be better prevented from entering the air intake channel 21 through the mounting cavity 31, that is, the air in the external space can be better prevented from directly entering the breathing cavity 11 through the mounting cavity 31, so that when the second housing 7 is connected with the sealing cover portion 3, the air enters the breathing cavity 11 through the air intake opening 22 or the air intake opening 12. Because at least one in air intake 22 and the air inlet 12 is equipped with purification module 5 for when second shell 7 is connected with sealed cover portion 3, the air current through air intake 22 and air inlet 12 can carry out purification treatment through purification module 5, can promote the cleanliness factor that gets into the gas in respiratory cavity 11 better, makes the user can inhale clean air, thereby can ensure user's health and safety.

In addition, the user can flexibly replace the first shell 6 and the second shell 7 according to the requirement of temperature adjustment. Specifically, when a user needs to adjust the temperature in the breathing cavity 11, the first housing 6 is connected with the sealing cover portion 3, the temperature of the airflow in the air inlet channel 21 is adjusted through the temperature adjusting module 4, and the airflow in the air inlet channel 21 flows into the breathing cavity 11, so that the temperature in the breathing cavity 11 is adjusted. When the user does not need to adjust the temperature in the breathing chamber 11, the first housing 6 to which the temperature adjustment module 4 is attached is detached from the hermetically sealed cover part 3, and the second housing 7 is attached to the hermetically sealed cover part 3. From this, the weight of the module 4 that adjusts the temperature can be better reduced to can reduce the weight of protective apparatus 100, and then can promote the travelling comfort that the user wore.

In some embodiments of the present invention, the first housing 6 is snap-fit or magnetically attached to the sealing cover portion 3, and the second housing 7 is snap-fit or magnetically attached to the sealing cover portion 3. Make the cooperation connected mode between first shell 6, second shell 7 and the sealed cover portion 3 comparatively simple, the degree of difficulty when having reduced first shell 6 and second shell 7 installation or dismantling to the degree of difficulty when can having reduced first shell 6 and second shell 7 replacement better.

In a concrete example, first shell 6 and second shell 7 and sealed cover portion 3 are connected through magnetism, through removing the magnetic attraction between first shell 6 or second shell 7 and sealed cover portion 3, can pull down first shell 6 or second shell 7 from sealed cover portion 3 to through the cooperation of magnetism of first shell 6, second shell 7 and the last corresponding position of sealed cover portion 3, the realization first shell 6 that can be quick, the location of second shell 7 and sealed cover portion 3, the location degree of difficulty when can reduce first shell 6 and second shell 7 installation better, promote the replacement speed of first shell 6 and second shell 7.

In some embodiments of the utility model, the second housing 7 is provided with a sealing element on the side facing the sealing cup portion 3, the sealing element being adapted to seal in the mounting cavity 31, so that the mounting cavity 31 is arranged in a sealing manner with respect to the external space. It can be understood that, because the installation cavity 31 is communicated with the air intake channel 21, by sealing the installation cavity 31 and the external space, the air in the external space cannot enter the air intake channel 21 through the installation cavity 31, that is, the air in the external space cannot directly enter the breathing cavity 11 through the installation cavity 31, so that when the second housing 7 is connected with the sealing cover portion 3, the air enters the breathing cavity 11 through the air intake 22 or the air intake 12. Because at least one of the air inlet 22 and the air inlet 12 is provided with the purification module 5, when the second housing 7 is connected with the sealing cover portion 3, the air flow passing through the air inlet 22 and the air inlet 12 can be purified by the purification module 5, and the air in the external space can be better prevented from directly entering the breathing cavity 11 through the installation cavity 31 and the air inlet 12 after not being purified. From this, can promote the cleanliness factor that gets into the gas in the respiratory cavity 11 better for the user can inhale clean air, thereby can ensure user's health safety.

In some embodiments of the utility model, as shown in fig. 3 and 8, a side of the shielding hood section 2 facing away from the central hood section 1 is provided with a separation bar 24, a side of the separation bar 24 facing away from the shielding hood section 2 abuts against the sealing hood section 3, the separation bar 24 defines a separation cavity 25 separated from the air intake channel 21 with the shielding hood section 2 and the sealing hood section 3, and the shielding tool 100 further comprises: the electronic control module 8, the electronic control module 8 is connected with the temperature adjusting module 4, and the electronic control module 8 is arranged in the separation cavity 25.

That is, the air supply channel 21 on the side of the division bar 24 is formed as the air supply channel 21, and the air supply channel 21 on the side of the division bar 24 away from the air supply channel 21 is formed as the division chamber 25. Therefore, the temperature adjusting module 4 and the electric control module 8 can be well separated through the separating strip 24, interference between the temperature adjusting module 4 and the electric control module 8 is avoided through a physical separation mode, and safety of the electric control module 8 can be well guaranteed. In a specific example, the electronic control module 8 includes a circuit board and a power supply unit, the circuit board is in communication connection with the temperature adjustment module 4, and the power supply unit is electrically connected with the temperature adjustment module 4.

Wherein, can control temperature adjustment module 4 better through electrical control module 8 for the user can be according to the temperature demand to in the respiratory cavity 11, through operation electrical control module 8 control temperature adjustment module 4, here can be for the control of functions such as set temperature, intensification, cooling to temperature adjustment module 4.

In one specific example of the present invention, as shown in fig. 5, a rib 35 abutting on the spacer 24 is provided on the side of the sealing cover portion 3 facing the shield cover portion 2. That is, the side of the division bar 24 facing away from the shielding cover part 2 abuts against the side of the reinforcing rib 35 facing away from the sealing cover part 3, thereby dividing the second chamber 21 into the air inlet passage 21 and the mounting cavity 31. In addition, the reinforcing ribs 35 thus extend from the top end to the bottom end of the backside of the sealed cover portion 3, so that the reinforcing ribs 35 can better enhance the structural strength of the sealed cover portion 3 to improve the shock resistance of the sealed cover portion 3.

In some embodiments of the present invention, as shown in fig. 9, an air intake frame 26 is disposed on a side of the shielding cover portion 2 facing the central cover portion 1, the air intake frame 26 defines the air inlet 22, and the purification module 5 is connected to the air intake frame 26 in a snap-fit manner. That is, the air intake frame 26 and the air intake opening 22 are disposed inside the shielding hood portion 2, so that the air intake frame 26 and the air intake opening 22 cannot be observed from a side of the shielding hood portion 2 away from the central hood portion 1. Therefore, the air inlet 22 can be better hidden, so as to reduce the influence of the air inlet 22 on the appearance of the protective tool 100. In addition, through setting up air inlet frame 26 for can fix a position to the mounted position when purification module 5 installs fast, thereby can reduce purification module 5's the installation degree of difficulty. Secondly, the projected area of the air inlet 22 on the horizontal plane is smaller, so that the accumulation of dust on the air inlet 22 in the use process can be better reduced.

And, purification module 5 is connected with air inlet frame 26 joint, has reduced purification module 5's the installation and has dismantled the degree of difficulty, is convenient for pull down purification module 5 and change or wash to guarantee purification module 5's purification performance, thereby guarantee clean, the health of the air current of purification module 5 of flowing through, make the user can inhale clean gas, and the security is high.

In some embodiments of the utility model, the protective gear 100 further comprises: and the air supply module 9, the air supply module 9 is arranged in the air inlet channel 21, and the air supply module 9 is suitable for driving the airflow to flow from the air inlet 22 to the air inlet 12. Therefore, the air supply module 9 can accelerate the air flowing speed in the air inlet channel 21, introduce the air in the external space into the air inlet channel 21 and introduce the air in the air inlet channel 21 into the breathing cavity 11 more quickly, and thus realize the forced circulation of the air in the external space and the breathing cavity 11. Therefore, the airflow with the temperature adjusted in the air inlet channel 21 can enter the breathing cavity 11 more quickly, and the temperature adjusting efficiency in the breathing cavity 11 is improved. And, fresh air of the external space can be ensured to continuously enter the breathing cavity 11, thereby ensuring that the user can inhale the fresh air. In addition, through accelerating the gaseous flow in the respiratory cavity 11, can accelerate the gaseous exhaust efficiency that discharges into the exterior space through gas vent 13 in the respiratory cavity 11 equally to can improve the user and wear the suffocation that protective device 100 leads to for a long time, and then can promote the travelling comfort that the user wore.

In a specific example of the present invention, the protective device 100 comprises an electronic control module 8 and an air supply module 9, and the electronic control module 8 is connected with both the air supply module 9 and the temperature regulation module 4. Therefore, the rotation speed of the air supply module 9 can be well controlled through the electric control module 8, so that the control of the air supply amount is realized, and the air supply control device is more humanized.

And, through installing air supply module 9 in inlet air duct 21 for sealed cover portion 3 and shelter from cover portion 2 and have good guard effect to air supply module 9, from this, can reduce the interference of exterior space when air supply assembly operates betterly, and rationally distributed, promoted the space utilization in the inlet air duct 21.

Further, as shown in fig. 8, the air supply module 9 includes a centrifugal wind wheel 91 and an air duct 92, the air duct 92 is disposed on one side of the shielding cover portion 2 departing from the central cover portion 1, the air duct 92 is connected with the shielding cover portion 2 through a plurality of threaded fasteners in the circumferential direction, the centrifugal wind wheel 91 is disposed in a space defined by the air duct 92 and the shielding cover portion 2, the air duct 92 forms a first opening facing the air inlet 22 and a second opening facing the air inlet channel 21, and the central axis of the centrifugal wind wheel 91 is parallel to the air inlet direction of the air inlet 22. Specifically, in the operation process of the air supply module 9, the centrifugal wind wheel 91 rotates to drive the air at the position of the air inlet 22 to enter the first opening, and the air is discharged into the air inlet channel 21 through the second opening, and then is discharged into the breathing cavity 11 through the air outlet 23 and the air inlet 12. Therefore, the air quantity entering the breathing cavity 11 can be increased well, and a user can be ensured to inhale fresh air.

On the other hand, when adjusting the air current temperature in the inlet air duct 21 through the module 4 that adjusts the temperature, under centrifugal wind wheel 91's drive for the speed that the gas after adjusting the temperature got into respiratory cavity 11 accelerates, thereby promotes the efficiency that adjusts the temperature in respiratory cavity 11, thereby reduces temperature regulation's time, in order to promote the comfort when the user wears.

In some embodiments of the present invention, as shown in fig. 2, the exhaust port 13 is provided with a filter module 14 and a one-way exhaust valve, and the air exhaled to the breathing chamber 11 is adapted to be exhausted to the external space through the filter module 14 and the one-way exhaust valve. The filtering module 14 can perform sterilization and other treatments on the gas exhaled by the user, for example, when the user catches a cold, the gas exhaled by the user and having pathogenic bacteria can be prevented from being exhausted to the outside of the protective device 100, which is beneficial to creating a healthier respiratory environment.

Secondly, the one-way exhaust valve is in a conducting state when the gas flows from the side of the exhaust port 13 close to the user to the side of the exhaust port 13 far from the user, and in a blocking state when the gas flows from the side of the exhaust port 13 far from the user to the side of the exhaust port 13 close to the user, so that the gas cannot flow from the side of the exhaust port 13 far from the user to the side of the exhaust port 13 close to the user. This can prevent the reverse flow of the gas exhaled by the user, and can further improve the comfort of the user wearing the protective device 100.

In a concrete example, as shown in fig. 2, the exhaust port 13 has two, two exhaust ports 13 are arranged at intervals in the left and right directions, so the setting can make the exhaust port 13 just to set up with the user's mouth, the exhaust resistance of the exhaled air can be reduced to a certain extent, and, the space here is great, can be convenient for set up the great exhaust port 13 of size here, thereby can further reduce the exhaust resistance, in addition, can be convenient for set up the great one-way exhaust valve of size at exhaust port 13, compare with traditional gill formula exhaust valve body, the exhaust flow of this kind of setting mode is great, thereby can effectively alleviate because of the suffocation that the exhaust is not smooth and produced, breathe not smooth and easy scheduling problem, and then can further improve the comfort when the user wears protective apparatus 100. Moreover, the exhaust port 13 faces the lower side, so that the impact of the exhaled air on the glasses can be better avoided, and the problem of fogging of the glasses can be better avoided.

Further, an exhaust processing component and/or an exhaust component may be disposed at the exhaust port 13, and the exhaust port 13 may be understood as an upstream or a downstream of the exhaust port 13, that is, the exhaust processing component and/or the exhaust component may be disposed at the upstream or the downstream of the exhaust port 13, so as to accelerate the exhaust efficiency of the exhaled air, and to better improve the suffocation caused by the user wearing the protective device 100 for a long time, so as to improve the comfort of the user wearing the protective device.

Further, in the up-down direction shown in fig. 1, the setting position of the air inlet 12 may be higher than the setting position of the air outlet 13, so that the setting position of the air inlet 12 and the setting position of the air outlet 13 may correspond to the positions of the mouth and the nose of the user, that is, the nose is inhaled and the mouth is exhausted, thereby the setting positions of the air inlet 12 and the air outlet 13 may correspond to the positions of the five sense organs of the human body, the setting positions of the air inlet 12 and the air outlet 13 may be reasonable, and the comfort when the user wears the protective tool 100 may be improved.

In some embodiments of the utility model, the central boot portion 1 is a flexibly deformable unitary piece. That is, the central cover portion 1 has good deformability, so that the central cover portion 1 can be deformed according to the facial contour of the user to ensure the fit of the central cover portion 1 with the facial area. This allows the center cover portion 1 to adapt to different facial shapes, and improves the comfort of the user when wearing the protective device 100. In addition, the integrated piece makes the production difficulty of the center cowl portion 1 low, so that the production efficiency of the center cowl portion 1 can be improved. In a specific example, the central cover portion 11 is made of silicone, is relatively soft, can better fit the face of the user, and has a relatively small pressing force on the face, so that the wearing comfort of the protective tool 100 is improved.

In some embodiments of the present invention, the left and right sides of the protective device 100 may be provided with fixing bands, so that when a user wears the protective device 100, the fixing bands on the left and right sides of the protective device 100 can be respectively sleeved at the roots of the two ears, preferably, the fixing bands can be elastic bands, which can conveniently wear the protective device 100 on the face, and can ensure the firmness of wearing the protective device 100 and prevent the protective device 100 from falling off during the wearing process.

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

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (18)

1. A protective gear, comprising:

the mask comprises a central mask part, wherein a breathing cavity opposite to the mouth and the nose is defined on one side of the central mask part facing to the face, the breathing cavity is provided with an air inlet and an air outlet, and the air outlet is communicated with the external space;

the shielding cover part is connected with the central cover part and is positioned on one side of the central cover part, which is far away from the face part;

the air inlet channel is provided with an air inlet and an air outlet, the air inlet is communicated with the external space, and the air outlet is communicated with the air inlet;

the temperature adjusting module is at least partially arranged in the air inlet channel and is used for adjusting the temperature of air flow in the air inlet channel;

and the purification module is arranged at least one of the air inlet and the air inlet.

2. The protective device according to claim 1, wherein there are two air inlets, two air inlets are distributed on the left and right sides of the central cover portion, and there are two air inlet channels, and the two air inlet channels correspond to the two air inlets one to one.

3. The protective implement according to claim 2, wherein there are two of said temperature-regulating modules, two of said temperature-regulating modules corresponding one-to-one to two of said air intake passages.

4. The protective tool according to claim 1, wherein the sealing cover portion is provided with a mounting cavity, the bottom wall of the mounting cavity is provided with an opening communicated with the air inlet channel, the temperature adjusting module is arranged in the opening in a penetrating mode, and the outer peripheral wall of the temperature adjusting module is connected with the inner peripheral wall of the opening in a sealing mode.

5. The protective tool according to claim 4, wherein a vent hole is formed in a side wall of the mounting cavity, one side of the vent hole is communicated with the air inlet channel, and the other side of the vent hole is communicated with the mounting cavity.

6. The protective appliance according to claim 5, characterized in that the tempering module comprises: the semiconductor refrigeration piece, the semiconductor refrigeration piece has first heat dissipation end and second heat dissipation end, first heat dissipation end is located in the inlet air duct, the at least part of second heat dissipation end is located the installation intracavity.

7. The protective tool according to claim 6, wherein the sealing hood portion is provided with an exhaust channel facing away from the shielding hood portion, one end of the exhaust channel being in communication with the mounting cavity and the other end of the exhaust channel being in communication with an external space.

8. The protective implement according to claim 7, wherein there are two exhaust channels, the two exhaust channels being distributed on opposite sides of the mounting cavity.

9. The protective gear of claim 7, further comprising: the first shell is connected with one side, which is far away from the shielding cover part, of the sealing cover part, and the temperature adjusting module is arranged on one side, which is far towards the sealing cover part, of the first shell.

10. The protective implement of claim 9, wherein the first housing is a thermally conductive member and the second heat dissipating end is connected to the first housing by a thermally conductive sheet.

11. The protective gear of claim 10, further comprising: a second housing replaceably connected with the first housing and the boot seal portion, the second housing adapted to shield the mounting cavity to separate the mounting cavity from an external space.

12. The protective implement of claim 11, wherein the first housing is snap-fit connected or magnetically attached to the sealed cover portion and the second housing is snap-fit connected or magnetically attached to the sealed cover portion.

13. The protective implement according to claim 11, characterized in that a side of the second housing facing the sealed hood portion is provided with a seal adapted to seal within the mounting cavity to seal the mounting cavity from the external space.

14. The protective implement according to claim 1, wherein a side of the shield cup portion facing away from the central cup portion is provided with a spacer bar, a side of the spacer bar facing away from the shield cup portion abuts the sealing cup portion, the spacer bar defining with the shield cup portion and the sealing cup portion a separation chamber separated from the air intake channel, the protective implement further comprising: and the electric control module is connected with the temperature adjusting module and is arranged in the separation cavity.

15. The protective apparatus according to claim 1, wherein an air inlet frame is provided on a side of the shielding hood portion facing the central hood portion, the air inlet frame defining the air inlet, and the purifying module is connected to the air inlet frame in a snap-fit manner.

16. The protective gear of claim 1, further comprising: and the air supply module is arranged in the air inlet channel and is suitable for driving airflow to flow from the air inlet to the air inlet.

17. The protective gear according to claim 1, wherein a filtering module and a one-way exhaust valve are provided at the exhaust port, and the air exhaled to the breathing chamber is adapted to be exhausted to an external space through the filtering module and the one-way exhaust valve.

18. The protective implement of claim 1, wherein the central cover portion is a flexibly deformable unitary piece.

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