Comprehensive protective respirator convenient to replace

Abstract

The utility model discloses a comprehensive protective respirator convenient to replace, and belongs to the technical field of sanitary protective articles. Comprising a mask body and a poison filtering box, and the mask body is detachably connected with the poison filtering box; the side, away from the mask body, of the poison filtering box is detachably connected with a lower cover, the lower cover is detachably connected with an upper cover, the lower cover and the upper cover are arranged in a matched mode to form a cavity, and filtering cotton is placed in the cavity. According to the comprehensive protective respirator, the poison filtering box and the filtering cotton on the comprehensive protective respirator are independently and detachably connected, when one or two of the poison filtering box and the filtering cotton need to be replaced, the poison filtering box and the filtering cotton can be rapidly detached and replaced, the whole filtering piece does not need to be replaced, time and labor are saved, and cost is saved; meanwhile, a certain distance is formed between the two filter materials through the lower cover, so that the problems that the filter materials are damaged and the filtering effect is reduced due to the fact that the two filter materials are placed together at a short distance for a long time are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of health protection articles, and specifically relates to a comprehensive protective respirator convenient to replace. BACKGROUND

[0002] Wearing a respirator for respiratory protection is required in many working environments, such as coal mines, welding, grinding, painting, and other environments where particulate matter or toxic and harmful gases exist. Sometimes, particulate matter and gaseous / steam pollutants may exist in the working environment at the same time, at which time a respirator with the functions of protecting against particulate matter and toxic and harmful gases needs to be selected for use.

[0003] A respirator with the functions of protecting against particulate matter and toxic and harmful gases generally consists of a respiratory mask main body and a filter element with comprehensive functions connected to the mask main body. The filter element with comprehensive functions consists of an activated carbon filter cartridge with the function of adsorbing toxic and harmful gases or vapors and a filter cotton with the function of protecting against particulate matter.

[0004] After searching, the Chinese utility model patent: a filter box and a gas mask with air purification function (publication number: CN219072421U, publication date: 2023.05.26) discloses a filter box and a gas mask with air purification function. The filter box includes a detachable first shell and a second shell, and a mounting sleeve is clamped between the first shell and the second shell. The mounting sleeve is used to place activated carbon filter material and dustproof filter material. The two ends of the mounting sleeve are provided with a first sealing ring and a second sealing ring. The second sealing ring is detachable. The gas mask includes a mask and a filter box. The outer end of the first shell of the filter box is provided with a connector. The connector is provided with a second internal thread. The mask is provided with a second external thread. The filter box and the mask are detachably connected through the second external thread and the second internal thread. The filter box places the activated carbon filter material and the dustproof filter material in the mounting sleeve. When the filter material needs to be replaced, the mounting sleeve needs to be detached from between the first shell and the second shell, and then replaced. This replacement method takes a long time, and the two types of filter material are placed together in the same mounting sleeve. The activated carbon filter material and the dustproof filter material are placed together for a long time, which can easily cause damage to the filter material and reduce the filtering effect. SUMMARY

[0005] 1. Technical problem to be solved by the utility model

[0006] The utility model aims to solve the problem of inconvenient replacement of two types of filter material in the existing filter box and the problem of reduction of filtering effect caused by placing two types of filter material together.

[0007] 2. Technical scheme

[0008] To achieve the above object, the utility model provides a technical scheme for

[0009] The utility model discloses a convenient to replace's comprehensive protective respirator, including the face guard main part and the filter poison box, the face guard main part detachably connects filter poison box,

[0010] The lower cover detachably connected with the upper cover, the lower cover and the upper cover cooperate to set up the cavity, and the filter cotton is placed in the cavity.

[0011] Preferably, the face guard main part is provided with the interface one, the filter poison box is provided with the interface two, and the face guard main part is connected with the filter poison box through the interface one and the interface two.

[0012] Preferably, the side of the lower cover close to the upper cover forms a cavity or the side of the upper cover close to the lower cover forms a cavity to accommodate the filter cotton.

[0013] Preferably, the side of the lower cover close to the upper cover forms a cavity one, and the side of the upper cover close to the lower cover forms a cavity two, and the cavity one and the cavity two are matched to accommodate the filter cotton.

[0014] Preferably, the relative two sides of the lower cover contacting with the filter poison box and the upper cover are provided with sealing rings.

[0015] Preferably, the lower cover and the upper cover are connected through the externally arranged connecting piece or connected through the matched components.

[0016] Preferably, the upper cover is provided with an air inlet channel, and the center of the air inlet channel coincides with the center of the upper cover.

[0017] Preferably, the upper cover is provided with a plurality of auxiliary air inlet channels, and the plurality of auxiliary air inlet channels are arranged at equal intervals along the outer perimeter of the air inlet channel, and the auxiliary air inlet channels are configured to deliver gas to the delivery path of the air inlet channel.

[0018] Preferably, the air inlet area of the air inlet channel accounts for 40% to 80% of the area of the upper cover.

[0019] Preferably, the air inlet area of the plurality of auxiliary air inlet channels accounts for 20% to 50% of the area of the upper cover.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model discloses a kind of comprehensive protective respirators of convenient replacement, including face guard main body and filter box, the face guard main body detachably connect the filter box;The filter box is detachably connected with lower cover on side away from the face guard main body, the lower cover is detachably connected with upper cover, the lower cover and the upper cover cooperation arrangement form cavity, filter cotton is placed in the cavity.This application is separately detachably connected by the filter box and the filter cotton on comprehensive protective respirator, when one or both needs replacement, can be quickly disassembled and replaced, without replacing the whole filter piece, save time and effort, save expense;Filter material damage caused by the close distance of two filter materials long time is placed together, reduce the problem of filtering effect is solved by the lower cover and form certain spacing between the two. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the overall structure diagram of the utility model of a kind of comprehensive protective respirators of convenient replacement Figure 1 ;

[0024] Figure 2 It is the overall structure diagram of the utility model of a kind of comprehensive protective respirators of convenient replacement Figure 2 ;

[0025] Figure 3 It is the structure diagram of the utility model of comprehensive filter assembly;

[0026] Figure 4 It is the explosion drawing of the utility model of comprehensive filter assembly.

[0027] Explanation of reference numerals in schematic view:

[0028] 100, face guard main body;110, interface one;120, exhalation valve;

[0029] 200, comprehensive filter assembly;210, filter box;211, interface two, 220, lower cover;230, filter cotton;240, upper cover;241, air inlet passage;242, auxiliary air inlet passage;250, sealing ring. DETAILED DESCRIPTION

[0030] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the present application embodiment will be described clearly and completely in the following with the drawings in the present application embodiment, obviously, the described embodiment is only a part of the embodiment of the present application, not all. Based on the embodiment in the present application, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the scope of protection of the present application.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0033] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0034] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Example 1

[0037] See attached document Figures 1-4The comprehensive protection respirator of the embodiment is convenient to replace, comprising a mask main body 100 and a comprehensive filter assembly 200, the comprehensive filter assembly 200 is used for filtering dirty air containing particulate matter pollutants or gaseous / vapor pollutants or both, the mask main body 100 is arranged as a half-face mask covering the mouth and nose or a full-face mask covering the mouth, nose and eyes and is used for wearing on the human face.

[0038] The mask main body 100 comprises an interface one 110 and an exhalation valve 120, the interface one 110 is connected with the comprehensive filter assembly 200, the interface one 110 is used for inputting air filtered by the comprehensive filter assembly 200 for human respiration, and the exhalation valve 120 is used for discharging waste gas exhaled by the human body.

[0039] The comprehensive filter assembly 200 comprises a filter cartridge 210 and filter cotton 230, the filter cartridge 210 is used for adsorbing gaseous / vapor pollutants, and the filter cotton 230 is used for protecting particulate matter pollutants, the filter cartridge 210 is detachably connected with a lower cover 220, the lower cover 220 is detachably connected with an upper cover 240, the lower cover 220 and the upper cover 240 are arranged to form a cavity, and the filter cotton 230 is placed in the cavity.

[0040] The filter cartridge 210 is provided with an interface two 211, and the mask main body 100 is connected with the filter cartridge 210 through the interface one 100 and the interface two 211.

[0041] When the filter cartridge 210 and the filter cotton 230 are used and both or one of them are invalid, the invalid filter cartridge 210 and / or filter cotton 230 can be replaced with new ones, and the comprehensive filter assembly 200 does not need to be replaced as a whole, so that the replacement is quick and convenient and cost is saved; meanwhile, the lower cover 220 is arranged between the filter cartridge 210 and the filter cotton 230 to separate the filter cartridge 210 from the filter cotton 230, so that a certain spacing is formed between the filter cartridge 210 and the filter cotton 230, and the problem that the filter materials in the filter cartridge 210 and the filter cotton 230 are placed close to each other for a long time and are damaged and the filtering effect is reduced is avoided.

[0042] The filter cartridge 210 is detachably connected with the lower cover 220 away from the mask main body 100, specifically, the filter cartridge 210 and the lower cover 220 are connected through components suitable for each other, which can be screw connection, or the filter cartridge 210 and the lower cover 220 are connected through externally arranged connecting pieces, which can be hinge connection or buckle connection. An air inlet or air inlet grid is arranged on the side, where the filter cartridge 210 is connected with the lower cover 220.

[0043] The lower cover 220 and the upper cover 240 are matched to form a cavity, and the filter cotton 230 is placed in the cavity. Specifically, the side of the lower cover 220 close to the upper cover 240 forms a cavity, and the filter cotton 230 is placed in the cavity. Alternatively, the side of the lower cover 220 close to the upper cover 240 forms a cavity one, and the side of the upper cover 240 close to the lower cover 220 forms a cavity two. The cavity one and the cavity two are matched to accommodate the filter cotton 230.

[0044] The opposite sides of the lower cover 220 in contact with the filter box 210 and the upper cover 240 are provided with sealing rings 250 to improve the sealing of the lower cover 220 and the filter box 210 and the sealing of the lower cover 220 and the upper cover 240, improve the effect of the comprehensive filter assembly 200 during filtering, and prevent external dirty air from entering from the connection. The material of the sealing ring 250 is rubber, silicone or thermoplastic elastomer.

[0045] The lower cover 220 and the upper cover 240 are detachably connected. Specifically, the lower cover 220 and the upper cover 240 are provided to be connected by an externally provided connecting piece, which can be a hinge connection or a buckle connection. Alternatively, the lower cover 220 and the upper cover 240 are provided to be connected by a component that matches itself, which can be a threaded connection.

[0046] The upper cover 240 is provided with an air inlet channel 241, and the center of the air inlet channel 241 coincides with the center of the upper cover 240. The upper cover 240 is provided with a plurality of auxiliary air inlet channels 242, and the plurality of auxiliary air inlet channels 242 are arranged at equal intervals along the outer perimeter of the air inlet channel 241. The auxiliary air inlet channel 242 is configured to transport gas to the transport path of the air inlet channel 241, so that during use of the comprehensive protective respirator, the dirty air that needs to be filtered is transported into the comprehensive filter assembly 200 from the middle position of the upper cover 240, so that the dirty air can fully contact the filter cotton 230 and the filter box 210, and the filtering effect is improved.

[0047] The air inlet area of the air inlet channel 241 accounts for 40% to 80% of the area of the upper cover 240, and can be preferably any one of 45%, 50%, 55%, 60%, 65%, 70% and 75%. The air inlet area of the plurality of auxiliary air inlet channels 242 accounts for 20% to 50% of the area of the upper cover 240, and can be preferably any one of 25%, 30%, 35%, 40% and 45%. According to the specific use, the breathing filtering effect of the comprehensive protective respirator is best.

[0048] The above-described embodiments only express certain implementation manners of the present application, and the description is relatively specific and detailed, but should not be understood as a limitation on the scope of the present application; it should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A replaceable integrated protective respirator, characterized in that: The mask includes a mask body and a filter cartridge, wherein the mask body is detachably connected to the filter cartridge. The filter cartridge is detachably connected to a lower cover on the side away from the mask body. The lower cover is detachably connected to an upper cover. The lower cover and the upper cover are configured to form a cavity, in which filter cotton is placed. Sealing rings are provided on the two opposite sides of the lower cover that contact the filter cartridge and the upper cover.

2. The easily replaceable integrated protective respirator according to claim 1, characterized in that: The mask body is provided with a first interface that can be connected, and the filter cartridge is provided with a second interface. The mask body and the filter cartridge are connected through the first interface and the second interface.

3. The easily replaceable integrated protective respirator according to claim 1, characterized in that: The lower cover forms a cavity on the side near the upper cover, or the upper cover forms a cavity on the side near the lower cover, to accommodate the filter cotton.

4. The easily replaceable integrated protective respirator according to claim 1, characterized in that: The lower cover forms a cavity one on the side near the upper cover, and the upper cover forms a cavity two on the side near the lower cover. The cavity one and the cavity two are adapted to accommodate the filter cotton.

5. The easily replaceable integrated protective respirator according to claim 1, characterized in that: The lower cover and the upper cover are configured to be connected by an externally installed connector or by a compatible component.

6. The easily replaceable integrated protective respirator according to claim 1, characterized in that: The upper cover is provided with an air intake channel, the center of which coincides with the center of the upper cover.

7. A replaceable integrated protective respirator according to claim 6, characterized in that: The upper cover is provided with multiple sets of auxiliary air intake channels, which are equally spaced along the outer perimeter of the air intake channel. The auxiliary air intake channels are configured to deliver gas to the delivery path of the air intake channel.

8. The easily replaceable integrated protective respirator according to claim 7, characterized in that: The air intake area of ​​the air intake channel accounts for 40% to 80% of the area of ​​the top cover.

9. A replaceable integrated protective respirator according to claim 7, characterized in that: The air intake area of ​​the multiple sets of auxiliary air intake channels accounts for 20% to 50% of the area of ​​the upper cover.

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