WO2021212698A1

WO2021212698A1 - Protective hood, protective clothing, and protective system

Info

Publication number: WO2021212698A1
Application number: PCT/CN2020/108174
Authority: WO
Inventors: 金文�; 胡伟
Original assignee: Jin Wen; Hu Wei
Priority date: 2020-04-23
Filing date: 2020-08-10
Publication date: 2021-10-28
Also published as: CN212214399U

Abstract

A protective hood, comprising a hood body (1), a breathing filtering mechanism (2), an adjustment mechanism, and a lower sealing component (6). The hood body (1) provided with a visible region, and a breathing opening (11) and a lower mounting opening (15) are formed on the hood body (1); the head of a human body can penetrate through the lower mounting opening (15) to enter the hood body (1); the breathing filtering mechanism (2) is provided at the breathing opening (11) to filter air; the adjustment mechanism can be provided on the hood body (1) and can be in contact fit with the head of the human body so as to adjust the position of the hood body (1); and the lower sealing component (6) is provided at the lower mounting opening (15) so as to seal the space of the lower mounting opening (15) that is not occupied by the human body. Further disclosed are a protective clothing and a protective system. The present application can achieve the omnidirectional protection of the head of the human body and achieve an excellent virus prevention effect, and also can flexibly adjust the position of the hood body (1) relative to the head of the human body, thereby improving the comfort during use.

Description

Protective cover, protective clothing and protective system

Technical field

The utility model relates to the technical field of protection, in particular to a protective cover, protective clothing and a protective system.

Background technique

Existing masks, whether ear-mounted or bundled, can achieve a certain protective effect on the protective surface, but there is a problem in that it is difficult to ensure complete fit with the face, especially if it is not worn correctly In the case of masks, as long as there are gaps, viruses or harmful gases will enter. This makes the existing masks have the risk of failure in protection when they are used in high-risk places, such as places with high virus concentrations or high harmful gas concentrations. In addition, in order to prevent droplet infection and aerosol infection, the usual eye masks and face masks can only provide partial or frontal protection, but do not achieve all-round protection.

Summary of the invention

The purpose of the present utility model is to solve the above problems and provide a protective cover, which can not only realize all-round protection of the human head and achieve an excellent virus protection effect, but also can flexibly adjust the position of the cover relative to the human head , In order to improve the comfort during use.

In order to solve the above technical problems, the present utility model is implemented based on the following technical solutions:

A protective cover, including:

A cover body, the cover body is provided with a visible interval, the cover body is provided with a breathing opening and a lower installation port; the human head can enter the cover body through the lower installation port;

A breathing filter mechanism can be arranged at the breathing opening to filter the air;

The adjustment mechanism can be arranged on the cover; the adjustment mechanism can contact and cooperate with the human head to adjust the position of the cover;

The lower closing component is arranged at the lower installation opening to seal the space of the lower installation opening that is not occupied by the human body.

Further, the adjustment mechanism includes an adjustment component and an adjustment opening provided on the cover;

The adjustment component is assembled with the adjustment opening and is in contact with the human head to adjust the position of the cover.

Further, the position on the cover body where the adjustment opening is located is opposite to the position on the cover body where the breathing opening is located.

Further, the cover body is also provided with a left ventilation opening and a right ventilation opening at a position corresponding to the human ear;

The protective cover also includes a left filter component and a right filter component, which are respectively detachably connected to the left ventilation opening and the right ventilation opening.

Further, the preparation material of the cover body is a transparent material.

Further, the material of the cover body is glass or plastic.

Further, the breathing filter mechanism includes a cover and a filter device;

When the human head is located in the cover, the covering cover can be arranged inside the cover to cover the mouth and nose of the human body, and the covering cover is provided with a first vent communicating with the breathing opening;

The filtering device is detachably arranged at the breathing opening.

Further, the preparation material of the covering cover is a flexible material.

Further, the material of the covering cover is silica gel.

Further, the breathing opening is provided with a front mounting protrusion, and the filtering device includes:

The front fixed cover is provided with a second vent, and the front fixed cover is detachably connected with the front mounting protrusion; the second vent communicates with the first vent;

The first filter material is arranged between the first vent and the second vent.

Further, the front fixing cover and the front mounting protrusion are threadedly connected.

Further, the covering cover is connected to the front fixing cover through a fixing piece; both the fixing piece and the covering cover are provided with an engaging groove, and the inner side of the front mounting protrusion is provided with a locking groove. Clamping post that fits the groove.

Further, both the left ventilation opening and the right ventilation opening are provided with side mounting protrusions; both the left filter component and the right filter component include:

The side fixing cover is provided with a third vent, the side fixing cover is detachably connected with the side mounting protrusion; the third vent is in communication with the left vent opening or the right vent opening;

The second filter material is arranged between the third vent and the left vent opening or the right vent opening.

Further, the side fixing cover is threadedly connected with the side mounting protrusion.

Further, the structural form of the front mounting protrusion is the same as the structural form of the side mounting protrusion, and the structural form of the side fixing cover is the same as that of the front fixing cover.

Further, the structural form of the first filter material is the same as the structural form of the second filter material.

Further, the adjustment component includes:

The installation cover is connected with the adjustment opening and can adjust its axial position relative to the adjustment opening;

One end of the extension piece is connected with the mounting cover, and the other end connected with the supporting part passes through the adjustment opening and extends into the cover body, so that the supporting part can contact and fit with the human head.

Further, the adjustment opening is provided with a rear mounting protrusion, and the mounting cover is threadedly connected with the rear mounting protrusion.

Further, the supporting member is an arc-shaped piece.

Further, the area of the supporting member that contacts the human head is arc-shaped.

Further, the preparation material of the supporting member is a flexible material.

Further, the preparation material of the supporting member is silica gel.

Further, the extension piece is provided with a mounting hole, and the supporting member is provided with a protrusion that can cooperate with the mounting hole.

Further, the extension piece is provided with a spherical shaft sleeve at one end close to the supporting member; the supporting member is provided with a spherical protrusion that can be matched with the spherical shaft sleeve.

Further, the lower closing component includes:

Cloth, connected with the edge of the lower installation opening, and provided with a wearing opening for the human head to pass through;

The elastic cord is arranged at the wearing opening.

Further, the cloth is a non-woven fabric protective material.

Further, the cover body is also provided with a temperature measurement opening, and the temperature measurement opening is detachably connected with a temperature measurement cover.

Further, the temperature measurement opening is provided in an area corresponding to the position of the forehead of the human body on the cover.

The utility model also discloses a protective clothing, which is provided with the aforementioned protective cover, and the protective clothing has an excellent all-round protection effect.

The utility model also discloses a protective system, which is provided with the aforementioned protective cover and external filtering equipment, the external filtering equipment is connected with the breathing opening, and the protective effect is excellent.

Compared with the prior art, the beneficial effects of this utility model are:

(1) The utility model discloses a protective cover, which can realize all-round protection of the human head by providing a cover body, a breathing filter mechanism and a lower sealing part. At the same time, it is provided with an adjustment mechanism to flexibly adjust the cover body. Relative to the position of the human head, it not only makes the breathing filter mechanism and the human head (specifically the nose and mouth) fit well to achieve an excellent virus protection effect, but also improves the comfort during use Spend.

(2) The present utility model discloses a protective suit, based on the protective cover provided above, which can play a good virus or harmful gas protection effect.

(3) The utility model discloses a protective system, which is provided with the aforementioned protective cover and external filtering equipment, and the protective effect is excellent.

It should be understood that within the scope of the present utility model, the above-mentioned technical features of the present utility model and the technical features specifically described in the following (such as the embodiments) can be combined with each other to form a new or preferred technical solution . Due to space limitations, I will not repeat them one by one here.

Description of the drawings

Fig. 1 is a schematic sectional view of the protective cover described in Embodiment 1 of the present invention.

Figure 2 is a schematic diagram of the exploded structure of the protective cover described in Embodiment 1 of the present invention.

3 is a schematic sectional view of the protective cover described in Embodiment 2 of the present invention.

Fig. 4 is a schematic diagram of the exploded structure of the protective cover described in the second embodiment of the present invention.

Fig. 5 is a schematic sectional view of the protective cover described in Embodiment 3 of the present invention.

Fig. 6 is a schematic diagram of the exploded structure of the protective cover described in the third embodiment of the present invention.

Marked in the figure as:

Cover-1; Breathing Filter Mechanism-2; Adjusting Part-3; Left Filtering Part-4; Right Filtering Part-5; Lower Closure Part-6; Breathing Opening-11; Adjusting Opening-12; Left Ventilation Opening-13; Right ventilation opening-14; lower installation opening-15; temperature measurement opening-16; temperature measurement cover-161; temperature measurement installation protrusion-1611; covering cover-21; first ventilation opening-211; front installation protrusion- 111; Front fixed cover-22; First filter material-23; Second vent-221; Fixing member-24; Locking groove-201; Locking post-202; Side mounting protrusion-101; Side fixing cover -102; second filter material-103; third vent-1021; mounting cover-31; extension piece-32; supporting part-33; rear mounting protrusion-121; cloth-61; elastic cord-62; wearing Opening-611; elastic band-612; mounting hole-321; protrusion-331; spherical bushing-322; spherical protrusion-332.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the description The embodiments are part of the embodiments of the present utility model, but not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various configurations.

Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present utility model.

It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply one of these entities or operations. There is any such actual relationship or order between. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes those that are not explicitly listed Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or is The orientation or positional relationship that the utility model product is usually placed in use is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, structure and structure in a specific orientation. Operation, therefore cannot be understood as a limitation of the present utility model.

In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between the two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood under specific circumstances.

Example 1

As shown in Figures 1-2, this embodiment discloses a protective cover, including a cover body 1, a breathing filter mechanism 2, an adjustment mechanism, a left filter part 4, a right filter part 5 and a lower closing part 6, wherein the cover body 1 A part of the visible interval can be set, for example, a transparent area is set at the position corresponding to the human eye. Preferably, the cover 1 is made of transparent glass or plastic material, and the transparent material can make the whole human body in the cover 1 All can be identified, which not only ensures that the vision is not affected in any way during the wearing process, but also facilitates the identification and confirmation during the wearing process, for example, it is convenient to confirm the identity when entering the customs by plane.

Specifically, the cover 1 is provided with a breathing opening 11, a left ventilation opening 13, a right ventilation opening 14 and a lower mounting opening 15 respectively, wherein the human head can enter the cover 1 through the lower mounting opening 15. More specifically, the left ventilation opening 13 and the right ventilation opening 14 are respectively located at the positions of the cover 1 corresponding to the ears on both sides of the human body.

Specifically, the breathing filter mechanism 2 is arranged at the breathing opening 11 to filter the air. Specifically, in this embodiment, the breathing filter mechanism 2 includes a cover 21 and a filter device; wherein, when the human head is located in the cover 1 At this time, the cover 21 is arranged inside the cover 1 to cover the mouth and nose of the human body, and the cover 21 is provided with a first vent 211 communicating with the breathing opening 11. Specifically, in this embodiment, the cover is made of a flexible material, which can effectively protect the human mouth and nose. Preferably, the material of the cover is made of silica gel, which is more skin-friendly and comfortable, and improves user experience. By providing the above-mentioned cover 21, on the one hand, the double protection effect of the cover body 1 and the cover 21 can be realized, and it is ensured that all the airflow generated by breathing passes through the filter material in a larger range, and the protection and isolation effect is better achieved. On the other hand, it can solve the problem that the current protective cover causes fogging and affecting eyesight due to the exhaled hot air. Specifically, the exhaled air is all exported from the cover 21 to the outer space, which will not cause fogging on the overall cover 1. In addition, the covering cover 21 is arranged in the cover body 1, and the probability of being contaminated during use will be greatly reduced. Therefore, it is only necessary to disinfect and wipe the outer surface each time it is used, which improves the efficiency of disinfection. All-round disinfection treatment can ensure the practical and effective protection.

Specifically, in this embodiment, the filter device is detachably arranged at the breathing opening 11. Specifically, the breathing opening 11 is provided with a front mounting protrusion 111, the filter device includes a front fixed cover 22 and a first filter material 23, the front fixed cover 22 is provided with a second vent 221, and the front fixed cover 22 is detachably mounted with the front The protrusion 111 is connected, the second vent 221 communicates with the first vent 211, and the first filter material 23 is disposed between the first vent 211 and the second vent 221 to filter the air derived from the cover 21.

Specifically, in this embodiment, the front fixing cover 22 is provided with internal threads, and the front mounting protrusion 111 is provided with correspondingly matched external threads, so that the front fixing cover 22 and the front mounting protrusion 111 can be threadedly connected.

Specifically, in this embodiment, the cover 21 is fixedly connected to the front fixing cover 22 through the fixing member 24. Both the fixing member 24 and the cover 21 are provided with an engaging groove 201, and the inner side of the front mounting protrusion 111 is provided with The locking post 202 matched with the locking groove 201 restricts the movement of the fixing member 24 and the cover 21 to achieve a stable installation effect.

Specifically, the left filter component 4 and the left ventilation opening 13 are detachably connected, and the right filter component 5 and the right ventilation opening 14 are detachably connected. Specifically, in this embodiment, both the left ventilation opening 13 and the right ventilation opening 14 are provided with side mounting protrusions 101. Specifically, the structures of the left filter component 4 and the right filter component 5 both include a side fixing cover 102 and a second filter material 103. Specifically, the side fixed cover 102 is provided with a third vent 1021, the side fixed cover 102 is detachably connected with the side mounting protrusion 101, the third vent 1021 is connected to the left vent opening 13 or the right vent opening 14, and the second The filter material 103 is provided between the third vent 1021 and the left vent opening 13 or the right vent opening 14 to filter the air. The left filter component 4 and the right filter component 5 arranged in this way can not only ensure that the hearing of the human body will not be affected by the closed cover 1 but also increase the air permeability effect of the cover 1.

Specifically, in this embodiment, the side fixing cover 102 is provided with an internal thread, and the side mounting protrusion 101 is provided with a corresponding matching external thread, and the two are threadedly connected.

As a preferred implementation of this embodiment, you can choose to design the side fixing cover 102 and the front fixing cover 22 as interchangeable universal covers. Specifically, the front mounting protrusion 111 and the side mounting protrusion 101 can be designed as The same structural form, correspondingly, the side fixing cover 102 and the front fixing cover 22 are also designed with the same structural form, thereby increasing the replaceability of the parts of the device, and at the same time, it is equivalent to adding two spare parts for the breathing filter mechanism 2. The fixed cover, thereby increasing the storage capacity of materials. In a more preferred solution, the front mounting protrusion 111 and the side mounting protrusion 101 can be designed to have the same outer diameter and thread form, and the side fixing cover 102 and the front fixing cover 22 can be designed to have the same inner diameter. The size of the opening and the form of the internal thread are designed to achieve the same structural design purpose as mentioned above.

Correspondingly, the first filter material 23 and the second filter material 103 can also be preferably designed as filter materials that can be used interchangeably, which can also increase the replaceability of the filter material and increase the amount of materials carried by the user, thereby reducing The protection time of one wear is extended to 3 times. Specifically, the first filter material 23 and the second filter material 103 are designed to have the same structure, that is, filter materials of the same shape and/or thickness are used. Preferably, the same filter material can also be used for both. Specifically, the filter material in this embodiment can be selected but not limited to polyester fiber filter cotton, synthetic fiber filter cotton, activated carbon filter cotton, glass fiber filter cotton and other filter cotton materials. Any material that can achieve a filtering effect should be included in the Within the scope of protection of this application.

The adjustment mechanism can be arranged on the cover 1; the adjustment mechanism can contact and cooperate with the human head to adjust the position of the cover 1. Specifically, the adjustment mechanism includes an adjustment member 3, an adjustment opening 12 provided on the cover 1, and the adjustment member 3 is assembled with the adjustment opening 12 and is in contact with the human head (such as the back of the head) to adjust the position of the cover 1. adjust. The position on the mask body 1 where the adjustment opening 12 is located is opposite to the position on the mask body 1 where the breathing opening 11 is. Back side. In this way, the front cover 21 is in contact with the human mouth and nose, and the rear adjusting part 3 is in contact with the human neck, so as to ensure that the position of the entire protective cover is determined. At the same time, the rear adjusting part 3 Firstly, it is effective to ensure that the covering cover 21 is in contact with the face of the human mouth and nose. This can improve the possible protective loopholes of the existing mask wearing, that is, all breathing air flows through the covering cover 21 and the connected filter device. , And will not circulate in the fitting place. Secondly, through adjustment, it can adapt to the difference in head size of different people, and then achieve a relatively comfortable state, thereby alleviating the discomfort that may be caused by long-term wearing. Therefore, the function of the adjusting component 3 is to adjust the front and back contact and fit state of the cover body 1 with the head, thereby firstly ensuring the fitting effect of the covering cover 21 covering the mouth and nose, and secondly ensuring the protective effect of the entire protective cover in place.

Specifically, in this embodiment, the adjustment component 3 includes a mounting cover 31 and an extension piece 32; the mounting cover 31 is connected to the adjustment opening 12 and can adjust its axial position relative to the adjustment opening 12. The cover 31 is connected, and the other end connected with the supporting member 33 extends into the cover body 1 through the adjustment opening 12 so that the supporting member 33 is in contact with the human head. With this design, the user can adjust the supporting member 33 by installing the cover 31 to apply pressure to the head and neck of the human body from the rear, so that the nose and mouth of the human head can be more closely attached to the cover 21 on the front side. Good fixation and adjustment.

Specifically, in this embodiment, the adjustment opening 12 is provided with a rear mounting protrusion 121, the mounting cover 31 is provided with an internal thread, and the rear mounting protrusion 121 is provided with a correspondingly matched external thread, and the two are threadedly connected. Specifically, in this embodiment, combined with ergonomic principles, the supporting member 33 is an arc-shaped piece so that it can fit well with the back neck of the human body. Among them, the arc-shaped piece can be made of hard or flexible materials, preferably Yes, the arc-shaped piece can be designed according to the curvature of the back neck of the human body.

Specifically, the lower closing member 6 is disposed at the lower installation opening 15 to seal the space of the lower installation opening 15 not occupied by the human body. Specifically, in this embodiment, the lower closure member 6 includes a cloth 61 and an elastic cord 62, wherein the cloth 61 is connected to the edge of the lower installation opening 15 and is provided with a wearing opening 611 for the human head to pass through, and the elastic cord 62 It is arranged at the wearing opening 611 and is used to tighten and seal the neck of the human body after the human head passes through the wearing opening 611 to achieve a hermetic effect. Preferably, the cloth 61 uses a non-woven protective material with a filtering effect. Optionally, the material can also be selected but not limited to polyester fiber filter cotton, synthetic fiber filter cotton, activated carbon filter cotton, glass fiber filter cotton and other filter cotton Material, any material that can achieve the filtering effect should be included in the scope of protection of this application.

Optionally, the cloth 61 is provided with an elastic band 612 at a position corresponding to the edge of the lower installation opening 15, so that the cloth 61 can be arranged on the edge of the lower installation opening 15 through the elastic band 612. Optionally, the cloth 61 can be a disposable protective cloth or a reusable protective cloth.

Preferably, the cover 1 is also provided with a temperature measurement opening 16, and the temperature measurement opening 16 is detachably connected with a temperature measurement cover 161. Specifically, in this embodiment, the temperature measurement cover 161 is provided with a temperature measurement opening The temperature measurement mounting protrusion 1611 matched with the hole 16, and the temperature measurement cover 161 can be connected to the temperature measurement opening 161 through the temperature measurement mounting protrusion 1611. Through this setting, the user can remove the temperature measuring cover 161 so that the relevant personnel can use the temperature measuring gun to measure their own body temperature through the temperature measuring opening 16 without having to release the entire protection system, which is convenient and quick. Preferably, the temperature measurement opening 16 is provided in the area corresponding to the position of the forehead of the human body on the cover 1, so that the temperature measuring gun can directly measure the temperature of the forehead of the human body, so that the body temperature data is more reliable and effective. The temperature measurement method is consistent.

Example 2

As shown in Figures 3-4, this embodiment discloses a protective cover, which is similar in structure to the protective cover disclosed in Embodiment 1, except that in this embodiment, the supporting member 33 is connected to the human head The contact area is arc-shaped, and the supporting member 33 can be made of a flexible material, such as a silicone pad. The arc-shaped area of the silicone pad can fit well with the back neck of the human body, which is beneficial to improve the coverage of the mouth and nose of the cover 21 Fitting effect at the place, and can improve the user's comfort. Specifically, in this embodiment, the extension member 32 is provided with a mounting hole 321, and the supporting member 33 is provided with a protrusion 331 that cooperates with the mounting hole 321, so as to realize the cooperation between the two.

Example 3

As shown in Figures 5-6, this embodiment discloses a protective cover, which is similar in structure to the protective cover disclosed in Embodiment 2, except that, specifically in this embodiment, the extension member 32 is close to the bearing One end of the supporting member 33 is provided with a spherical shaft sleeve 322; the supporting member 33 is provided with a spherical protrusion 332 that cooperates with the spherical shaft sleeve 322. This design increases the adjustability of the supporting member 33 in multiple directions, thereby This allows the user to adjust the supporting member 33 at more angles to fit different curves of the back neck of the human body, which improves the user experience, and is also more conducive to the fit of the covering mask 21 with the mouth and nose.

Example 4

This embodiment discloses a protective suit, which is provided with the protective cover as described in any one of Embodiment 1, Embodiment 2 or Embodiment 3 to form an integral protective suit with the protective cover to provide more comprehensive protection to users. protection of.

Example 5

This embodiment discloses a protective system, which is provided with the protective cover and external filter device as described in any one of Embodiment 1, Embodiment 2 or Embodiment 3, wherein the external filter device is connected to the breathing opening of the protective cover. Preferably, the external filtering device may be an existing shaped air filtering device to improve air filtration.

The above are only preferred embodiments of the present utility model, and do not impose any formal restrictions on the present utility model. Therefore, unless deviating from the content of the technical solution of the present utility model, the above embodiments are based on the technical essence of the present utility model. Any simple modifications, equivalent changes and modifications made are still within the scope of the technical solution of the present invention.

Claims

A protective cover, characterized in that it comprises:

A cover body, the cover body is provided with a visible interval, the cover body is provided with a breathing opening and a lower installation port; the human head can enter the cover body through the lower installation port;

A breathing filter mechanism can be arranged at the breathing opening to filter the air;

The adjustment mechanism can be arranged on the cover; the adjustment mechanism can contact and cooperate with the human head to adjust the position of the cover;

The lower closing component is arranged at the lower installation opening to seal the space of the lower installation opening that is not occupied by the human body.
The protective cover according to claim 1, wherein the adjustment mechanism comprises an adjustment component and an adjustment opening provided on the cover body;

The adjustment component is assembled with the adjustment opening and is in contact with the human head to adjust the position of the cover.
The protective cover according to claim 2, wherein the position on the cover body where the adjustment opening is located is opposite to the position on the cover body where the breathing opening is located.
The protective cover according to claim 1, wherein the cover body is further provided with a left ventilation opening and a right ventilation opening at a position corresponding to the human ear;

The protective cover also includes a left filter component and a right filter component, which are respectively detachably connected to the left ventilation opening and the right ventilation opening.
The protective cover according to claim 1, wherein the material of the cover body is a transparent material.
The protective cover according to claim 5, wherein the material of the cover body is glass or plastic.
The protective cover according to claim 4, wherein the breathing filter mechanism comprises a cover cover and a filter device;

When the human head is located in the cover, the covering cover can be arranged inside the cover to cover the mouth and nose of the human body, and the covering cover is provided with a first vent communicating with the breathing opening;

The filtering device is detachably arranged at the breathing opening.
The protective cover according to claim 7, wherein the material of the covering cover is a flexible material.
The protective cover according to claim 8, wherein the material of the covering cover is silica gel.
The protective cover according to any one of claims 7-9, wherein the breathing opening is provided with a front mounting protrusion, and the filtering device comprises:

The front fixed cover is provided with a second vent, and the front fixed cover is detachably connected with the front mounting protrusion; the second vent communicates with the first vent;

The first filter material is arranged between the first vent and the second vent.
The protective cover according to claim 10, wherein the front fixing cover and the front mounting protrusion are threadedly connected.
The protective cover according to claim 10, wherein the cover cover is connected to the front fixing cover through a fixing part; both the fixing part and the cover cover are provided with engaging grooves, the The inner side of the front mounting protrusion is provided with a locking column that is matched with the locking groove.
The protective cover according to claim 10, wherein the left vent opening and the right vent opening are both provided with side mounting protrusions; both the left filter part and the right filter part comprise:

The side fixing cover is provided with a third vent, the side fixing cover is detachably connected with the side mounting protrusion; the third vent is in communication with the left vent opening or the right vent opening;

The second filter material is arranged between the third vent and the left vent opening or the right vent opening.
The protective cover according to claim 13, wherein the side fixing cover is threadedly connected with the side mounting protrusion.
The protective cover according to claim 13, wherein the structural form of the front mounting protrusion is the same as that of the side mounting protrusion, and the structural form of the side fixing cover is the same as that of the front fixing cover. The structure is the same.
The protective cover according to claim 15, wherein the structure of the first filter material is the same as the structure of the second filter material.
The protective cover according to claim 2 or 3, wherein the adjusting component comprises:

The installation cover is connected with the adjustment opening and can adjust its axial position relative to the adjustment opening;

One end of the extension piece is connected with the mounting cover, and the other end connected with the supporting part passes through the adjustment opening and extends into the cover body, so that the supporting part can contact and fit with the human head.
The protective cover according to claim 17, wherein the adjustment opening is provided with a rear mounting protrusion, and the mounting cover is threadedly connected with the rear mounting protrusion.
The protective cover according to claim 17, wherein the supporting member is an arc-shaped piece.
The protective cover according to claim 17, wherein the contact area of the supporting member with the human head is arc-shaped.
The protective cover according to claim 17, wherein the material of the supporting member is a flexible material.
The protective cover according to claim 21, wherein the material of the supporting member is silica gel.
The protective cover according to claim 17, wherein the extension piece is provided with a mounting hole, and the supporting member is provided with a protrusion that can be matched with the mounting hole.
The protective cover according to claim 17, wherein a spherical shaft sleeve is provided on one end of the extension member close to the supporting member; Raised.
The protective cover according to claim 1, wherein the lower closing component comprises:

Cloth, connected with the edge of the lower installation opening, and provided with a wearing opening for the human head to pass through;

The elastic cord is arranged at the wearing opening.
The protective cover according to claim 25, wherein the cloth is a non-woven protective material.
The protective cover according to claim 1, wherein the cover body is further provided with a temperature measurement opening, and the temperature measurement opening is detachably connected with a temperature measurement cover.
The protective cover according to claim 27, wherein the temperature measurement opening is provided in an area corresponding to the position of the forehead of the human body on the cover.
A protective clothing, characterized in that it is provided with the protective cover according to any one of claims 1-28.
A protective system, characterized in that the protective cover and an external filter device according to any one of claims 1-28 are provided, and the external filter device is connected to the breathing opening.