CN220477963U

CN220477963U - Waterproof cover assembly of filter cotton and respirator

Info

Publication number: CN220477963U
Application number: CN202321482901.XU
Authority: CN
Inventors: 杨军; 朱荟
Original assignee: Shanghai Huyou Environmental Protection Technology Co ltd
Current assignee: Shanghai Huyou Environmental Protection Technology Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2024-02-13
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses a filter cotton waterproof cover assembly and a respirator, and belongs to the technical field of respirators. Including filter cotton and be used for the cooperation to fix the protecgulum and the back lid of filter cotton, the outside arch in center of protecgulum is formed with the protecgulum and advances the arch of air, the protruding circumference lateral wall of protecgulum is equipped with the protecgulum inlet port of a plurality of, the outside arch of back lid is formed with the back lid along the respiration direction and advances the arch of air, the protruding circumference lateral wall of back lid is equipped with a plurality of back lid inlet port, protecgulum inlet port and back lid inlet port all set up in the outside parcel of filter cotton along the air current respiration direction have protecgulum and back lid, thereby protecgulum and back lid form a relative sealed space and reduce the contact of filter cotton with external water, in addition, the protecgulum inlet port and the back lid inlet port that are equipped with can guarantee the normal circulation of air, and protecgulum inlet port and back lid inlet port set up and can reduce the contact surface with air in one side, it is possible that filter cotton and water contact to advance one's reduction, promote the water-proof effects.

Description

Waterproof cover assembly of filter cotton and respirator

Technical Field

The utility model belongs to the technical field of respirators, and particularly relates to a filter cotton waterproof cover assembly and a respirator.

Background

Many work environments require workers to wear particulate matter resistant respirators for respiratory protection, such as coal mine workers, welding workers, and others who work in environments where particulate matter contaminants are present. Particulate-resistant respirators are generally classified into disposable particulate-resistant masks and reusable masks (half-masks or full-masks). Reusable masks are favored by more businesses and users at lower overall use costs because they can be reused by replacing particulate filter cotton.

The reusable mask is used for protecting particulate matters by matching filter cotton for preventing the particulate matters. Many times these particulate filter batts are designed as multi-layer nonwoven over-composite structures plus interfaces that can connect to the mask air inlet. These nonwoven composite structures are typically made from polypropylene meltblown as the core filtration layer, with polypropylene spunbond or hydroentangled or other polymeric nonwoven composites. However, the filter cotton product with the structure is completely exposed to the use environment when in use. When the filter cotton is used in some high-humidity or water-spraying and water-splashing working environments, the surface of the filter cotton is easily covered by water vapor or water drops with particulate pollutants, so that the suction resistance of the filter cotton is rapidly increased, and a respirator can be continuously used only by replacing the filter cotton. For example, in the underground working environment, the typical situation can be ensured to be carried out continuously by replacing the filter cotton, but the high-frequency filter cotton replacement is convenient, so that the use cost of the respiratory protection articles of enterprises is greatly increased, and the working efficiency of workers is greatly reduced.

The patent provides a respirator with filter cotton waterproof cover, is applicable to the above-mentioned high humidity or have water to drench, splash etc. operational environment. Under the premise that normal air intake is guaranteed by the design of the filter cotton waterproof cover, the surface of the filter cotton is well protected from being covered by water vapor or water drops, and the service life of the filter cotton is prolonged.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to solve the problem that the filter cotton structure of the existing respirator is easy to feed water.

2. Technical proposal

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the utility model discloses a filter cotton waterproof cover assembly, which comprises filter cotton, a front cover and a rear cover, wherein the front cover and the rear cover are used for being matched and fixed with the filter cotton, a front cover air inlet bulge is formed on the outer bulge of the center of the front cover, a plurality of front cover air inlet holes are formed on the outer circumferential side wall of the front cover air inlet bulge, a rear cover air inlet bulge is formed on the outer bulge of the center of the rear cover along the breathing direction, a plurality of rear cover air inlet holes are formed on the outer circumferential side wall of the rear cover air inlet bulge, and the front cover air inlet holes and the rear cover air inlet holes are both arranged along the air flow breathing direction.

Preferably, one side of the front cover attached to the filter cotton is provided with a plurality of supporting protrusions and a plurality of reinforcing ribs II, the reinforcing ribs II are arranged on one side of the front cover air inlet protrusions, and the supporting protrusions are arranged on one side of the front cover attached to the filter cotton, which is not connected with the front cover air inlet protrusions.

Preferably, the first reinforcing ribs are arranged in parallel with each other and gradually reduce in thickness along the direction away from the front cover air inlet protrusions, the second reinforcing ribs are uniformly arranged along the circumferential direction of the front cover air inlet protrusions, and the second reinforcing ribs are provided with transverse fixing blocks for increasing support fixing.

Preferably, the center of the rear cover is provided with a hole for the filter cotton interface to penetrate through, and the hole is connected with the mask interface, one side of the rear cover attached to the filter cotton is provided with a plurality of reinforcing ribs III along the edge of the hole in an outward diffusion manner, and the reinforcing ribs III are used for fixedly supporting the filter cotton.

Preferably, the joint surface of the front cover and the rear cover is provided with a plurality of uniformly distributed fixing clamping blocks, the joint surface of the rear cover and the front cover is provided with a plurality of uniformly distributed fixing grooves, and the fixing grooves are matched with the fixing clamping blocks to fix the front cover and the rear cover.

Preferably, the front cover edge is provided with an assembly indicating protrusion, the rear cover edge is provided with an assembly indicating groove, and the assembly indicating protrusion is matched with the assembly indicating groove in position so as to facilitate installation.

Preferably, the front cover edge is provided with a front cover U-shaped groove, the rear cover edge is provided with a rear cover U-shaped groove, and the front cover U-shaped groove is in contact fit with the rear cover U-shaped groove to form a circular arc-shaped groove.

Preferably, the thickness of the rear cover air inlet bulge is gradually increased along the direction away from the opening, the side wall of the front cover is provided with a plurality of first reinforcing ribs, and the surfaces of the front cover and the rear cover are respectively provided with an arrow indication mark.

The filter cotton waterproof cover assembly comprises a respirator body and filter cotton waterproof cover assemblies arranged on two sides of the respirator body.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

the utility model relates to a filter cotton waterproof cover assembly and a respirator, which comprise filter cotton, a front cover and a rear cover, wherein the front cover and the rear cover are used for being matched and fixed with the filter cotton, a front cover air inlet bulge is formed in the center of the front cover outwards bulge, a plurality of front cover air inlets are formed in the peripheral outer side wall of the front cover air inlet bulge, a rear cover air inlet bulge is formed in the center of the rear cover outwards bulge along the breathing direction, a plurality of rear cover air inlets are formed in the peripheral outer side wall of the rear cover air inlet bulge, the front cover air inlets and the rear cover air inlets are all arranged on the outer side of the filter cotton along the airflow breathing direction and are wrapped with the front cover and the rear cover, a relative sealing space is formed between the front cover and the rear cover so as to reduce the contact between the filter cotton and external water, in addition, the arranged front cover air inlets and the rear cover air inlets can ensure the normal circulation of air, the front cover air inlets and the rear cover air inlets are arranged on one side so that the contact surface with air can be reduced, the possibility of the filter cotton in contact with water is reduced, and the waterproof effect is improved.

Drawings

FIG. 1 is a schematic view of the overall construction of the respirator of the present utility model;

FIG. 2 is a schematic view of the structure of the filter cotton of the present utility model;

fig. 3 is a schematic structural view of the waterproof cover for filter cotton of the present utility model;

fig. 4 is a front view of the front cover of the present utility model;

FIG. 5 is a side view of the front cover of the present utility model;

FIG. 6 is a rear view of the front cover of the present utility model;

FIG. 7 is a rear view of the rear cover of the present utility model;

FIG. 8 is a front view of the rear cover of the present utility model;

fig. 9 is a side view of the rear cover of the present utility model.

Reference numerals in the schematic drawings illustrate:

100. a respirator body;

200. a filter cotton waterproof cover assembly; 210. filtering cotton; 211. a filter cotton interface; 220. a front cover; 221. a front cover air inlet bulge; 222. a front cover air inlet hole; 223. a front cover U-shaped groove; 224. assembling an indication bulge; 225. a supporting protrusion; 226. fixing the clamping block; 227. a first reinforcing rib; 228. a second reinforcing rib; 229. a transverse fixing block;

230. a rear cover; 231. opening holes; 232. reinforcing ribs III; 233. a rear cover air inlet bulge; 234. assembling an indication groove; 235. a fixing groove; 236. a rear cover air inlet hole; 237. the arrow indicates the identity.

Detailed Description

In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

Referring to fig. 1-9, a filter cotton waterproof cover assembly of the present embodiment includes a filter cotton 210, and a front cover 220 and a rear cover 230 for fixing the filter cotton 210 in a matching manner, a front cover air inlet protrusion 221 is formed by protruding outwards from the center of the front cover 220, a plurality of front cover air inlet holes 222 are formed in the circumferential outer side wall of the front cover air inlet protrusion 221, a rear cover air inlet protrusion 233 is formed by protruding outwards from the center of the rear cover 230 along the breathing direction, a plurality of rear cover air inlet holes 236 are formed in the circumferential outer side wall of the rear cover air inlet protrusion 233, and the front cover air inlet holes 222 and the rear cover air inlet holes 236 are all disposed along the airflow breathing direction. In the waterproof cover assembly of the filter cotton in this embodiment, the front cover 220 and the rear cover 230 are wrapped on the outer side of the filter cotton 210, the front cover 220 and the rear cover 230 form a relative sealing space, so that the contact between the filter cotton 210 and the outside water is reduced, in addition, the front cover air inlet hole 222 and the rear cover air inlet hole 236 can ensure the normal circulation of air, the contact surface between the front cover air inlet hole 222 and the rear cover air inlet hole 236 and the air can be reduced, the possibility of the contact between the filter cotton 210 and the water is further reduced, and the waterproof effect is improved.

The front cover 220 is attached to one side of the filter cotton 210, a plurality of supporting protrusions 225 and a plurality of reinforcing ribs II 228 are arranged on one side of the front cover air inlet protrusion 221, and the supporting protrusions 225 are arranged on one side, which is not connected with the front cover air inlet protrusion 221, of the front cover 220 attached to one side of the filter cotton 210. The supporting protrusion 225 and the second reinforcing rib 228 not only can effectively clamp and fix the filter cotton 210, but also can form an air flow path so as to ensure the ventilation filtering effect.

The first reinforcing ribs 227 are arranged in parallel with each other and gradually reduce in thickness along the direction away from the front cover air inlet protrusion 221, and the first reinforcing ribs 227 can ensure the air inlet effect and simultaneously reduce the contact between the filter cotton 210 and liquid. The second reinforcing ribs 228 are uniformly arranged along the circumferential direction of the front cover air inlet protrusion 221, and the second reinforcing ribs 228 are provided with transverse fixing blocks 229 for increasing support and fixing, so that the clamping and fixing effects on the filter cotton 210 are improved.

The center of the rear cover 230 is provided with an opening 231 for the filter cotton interface 211 to penetrate through the opening 231 and be connected with the mask interface, one side of the rear cover 230 attached to the filter cotton 210 is provided with a plurality of reinforcing ribs III 232 along the edge of the opening 231 in an outward diffusion manner, and the reinforcing ribs III 232 are used for fixedly supporting the filter cotton 210. The joint surface of the front cover 220 and the rear cover 230 is provided with a plurality of uniformly distributed fixing clamping blocks 226, the joint surface of the rear cover 230 and the front cover 220 is provided with a plurality of uniformly distributed fixing grooves 235, and the fixing grooves 235 are matched with the fixing clamping blocks 226 to fix.

The front cover 220 has a fitting indicating protrusion 224 at the edge, the rear cover 230 has a fitting indicating groove 234 at the edge, and the fitting indicating protrusion 224 is positioned to be matched with the fitting indicating groove 234 so as to facilitate installation.

The edge of the front cover 220 is provided with a front cover U-shaped groove 223, the edge of the rear cover 230 is provided with a rear cover U-shaped groove, and the front cover U-shaped groove 223 is in contact fit with the rear cover U-shaped groove to form a circular arc-shaped groove, so that the front cover 220 and the rear cover 230 can be conveniently detached.

The thickness of the rear cover air inlet protrusion 233 gradually increases along a direction away from the opening 231, the side wall of the front cover 220 is provided with a plurality of reinforcing ribs 227, and the surfaces of the front cover 220 and the rear cover 230 are respectively provided with an arrow indication mark 237.

Example 2

The filter cotton waterproof cover assembly of the embodiment comprises a respirator body 100 and filter cotton waterproof cover assemblies 200 arranged on two sides of the respirator body 100, wherein the filter cotton waterproof cover assemblies 200 are the filter cotton waterproof cover assemblies of the embodiment 1.

The foregoing examples merely illustrate certain embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the concept of the utility model, all of which fall within the scope of protection of the utility model; accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A filter pulp waterproof cover assembly, characterized in that: including filter cotton (210) and be used for the cooperation to fix protecgulum (220) and back lid (230) of filter cotton (210), the outside arch in center of protecgulum (220) is formed with protecgulum inlet bulge (221), protecgulum inlet bulge (221) circumference lateral wall is equipped with protecgulum inlet port (222) of a plurality of, the outside arch in the center of back lid (230) is formed with back lid inlet bulge (233) along the direction of respiration, back lid inlet bulge (233) circumference lateral wall is equipped with a plurality of back lid inlet port (236), protecgulum inlet port (222) and back lid inlet port (236) all set up in along the air current direction of respiration.

2. A cotton filter waterproof cover assembly according to claim 1, wherein: the front cover (220) is attached to one side of the filter cotton (210) and is provided with a plurality of supporting protrusions (225) and a plurality of reinforcing ribs II (228), the reinforcing ribs II (228) are arranged on one side of the front cover air inlet protrusions (221), and the supporting protrusions (225) are arranged on one side, which is attached to the front cover (220), of the filter cotton (210) and is not connected with one side of the front cover air inlet protrusions (221).

3. A cotton filter waterproof cover assembly according to claim 2, wherein: the center of the rear cover (230) is provided with a hole (231) for the filter cotton interface (211) to penetrate through the hole (231) and be connected with the mask interface, one side of the rear cover (230) attached to the filter cotton (210) is provided with a plurality of reinforcing ribs (232) along the edge of the hole (231) in an outward diffusion mode, and the reinforcing ribs (232) are used for fixedly supporting the filter cotton (210).

4. A cotton filter waterproof cover assembly according to claim 1, wherein: the front cover (220) is provided with a plurality of evenly distributed fixing clamping blocks (226) on the joint surface of the rear cover (230), a plurality of evenly distributed fixing grooves (235) are formed on the joint surface of the rear cover (230) and the front cover (220), and the fixing grooves (235) are matched with the fixing clamping blocks (226) to fix.

5. A cotton filter waterproof cover assembly according to claim 1, wherein: the front cover (220) edge is provided with an assembly indicating protrusion (224), the rear cover (230) edge is provided with an assembly indicating groove (234), and the assembly indicating protrusion (224) is matched with the assembly indicating groove (234) in arrangement position so as to facilitate installation.

6. A cotton filter waterproof cover assembly according to claim 1, wherein: the edge of the front cover (220) is provided with a front cover U-shaped groove (223), the edge of the rear cover (230) is provided with a rear cover U-shaped groove, and the front cover U-shaped groove (223) is in contact fit with the rear cover U-shaped groove to form a circular arc-shaped groove.

7. A cotton filter waterproof cover assembly according to claim 3, wherein: the thickness of the rear cover air inlet bulge (233) gradually increases along the direction away from the opening (231), a plurality of first reinforcing ribs (227) are arranged on the side wall of the front cover (220), and arrow indication marks (237) are arranged on the surfaces of the front cover (220) and the rear cover (230).

8. The cotton filter cover assembly as defined in claim 7, wherein: the first reinforcing ribs (227) are arranged in parallel with each other and gradually reduce in thickness along the direction away from the front cover air inlet bulge (221), the second reinforcing ribs (228) are uniformly arranged along the circumferential direction of the front cover air inlet bulge (221), and the second reinforcing ribs (228) are provided with transverse fixing blocks (229) for increasing support and fixing.

9. A respirator that is characterized in that: comprising a respirator body (100) and filter cotton waterproof cover assemblies (200) arranged on two sides of the respirator body (100), wherein the filter cotton waterproof cover assemblies (200) are the filter cotton waterproof cover assemblies as claimed in any one of claims 1 to 8.