Mask respirator with plug-in type filter

Abstract

The utility model discloses a mask respirator with a plug-in type filter. The mask respirator comprises a respirator body and the filter. The one-way air inlet bayonet sockets are arranged on the two sides of the front end of the respirator body, the connecting portion communicated with the interior is arranged at one end of the side wall of the filter, the filter is sealed through the connecting portion and detachably inserted into the bayonet sockets, and the grid holes are distributed in the front face and the rear face of the filter. Gas can enter the filter from the front surface and the rear surface, full of the grid holes, of the filter, so that the gas inlet area of the filter is greatly increased, a filter material in the filter can be fully utilized, and the filter has the advantage of high utilization efficiency of the filter material; moreover, during installation, only the filter needs to be hermetically inserted into the bayonet socket through the connecting part, so that the filter has the advantages of unique installation mode, simplicity and convenience.

Description

Technical Field

[0001] The utility model relates to the technical field of mask respirators, in particular to a mask respirator with a plug-in filter. Background Art

[0002] As we all know, in some working environments, there are a lot of dust and other harmful substances, such as mining, machinery manufacturing, metal smelting, cement and stone manufacturing, and tunnel construction, etc. Workers engaged in these jobs must wear masks and respirators. Workers wear masks and respirators on their faces to filter out dust and other harmful substances, helping people to work normally in high-dust environments.

[0003] Existing mask respirators usually include a respirator body and a filter. One-way air inlet ends are arranged on both sides of the front end of the breathing filter body, and a clamping block is arranged on the air inlet end. A connecting cylinder is arranged at the bottom of the filter, and a clamping groove is arranged in the connecting cylinder. When installing, the clamping groove and the clamping block are misaligned with each other, and the air inlet end is inserted into the connecting cylinder. Then, the filter is rotated so that the clamping groove and the clamping block are misaligned and clamped with each other, so that the filter is installed on the respirator body.

[0004] However, it is found through observation that after the connection tube is set at the bottom of the filter, the air intake grid cannot be set, which greatly reduces the air intake area of ​​the filter. The gas can only enter the filter from the air intake grid at the front end of the filter, resulting in that the filter material at the bottom of the filter cannot be fully utilized, and it has the defect of low filter material utilization efficiency. In addition, because the connection tube and the air intake end are located on the inside, it is impossible to see directly during installation, and it is impossible to determine the angle of rotation and clamping, which often leads to the phenomenon that the installation angle is incorrect and needs to be reinstalled. Therefore, it also has the defect of inconvenient installation.

[0005] In view of this, the designer has made in-depth considerations and actively researched, improved and tried to develop and design the present utility model in view of the many deficiencies and inconveniences caused by the imperfect structural design of the above-mentioned mask respirator. Utility Model Content

[0006] The utility model aims to provide a mask respirator with a plug-in filter which has high filter material utilization efficiency and is easy to install.

[0007] In order to achieve the above purpose, the solution of the utility model is:

[0008] A mask respirator with a plug-in filter, the mask respirator comprising

[0009] A respirator body, wherein both sides of the front end of the respirator body are provided with one-way air intake sockets;

[0010] And a filter, one end of the filter side wall is provided with a connecting part connected to the interior, the filter is sealed through the connecting part and detachably plugged into the socket, and the front and rear surfaces of the filter are covered with grid holes.

[0011] Preferably, the mask respirator further comprises a sealing member made of silicone, the socket is provided with a through hole, the sealing member fits in the through hole, and the connecting portion is sealably inserted in the sealing member and is detachably connected to the socket.

[0012] Preferably, a retaining wall is provided at the outer end of the sealing member, and the retaining wall is abutted against the outer end surface of the through hole. The mask respirator also includes a clamping member, and first buckles are provided at both ends of the clamping member. First slots are provided on both sides of the socket, and the first buckle is movably engaged with the first slot and presses the sealing member into the through hole.

[0013] Preferably, a second buckle is provided on the upper side of the connecting part, a protrusion is provided on the socket, and the second buckle is movably engaged with the protrusion; first limit plates are provided on both sides of the connecting part, and the first limit plates are abutted against the socket.

[0014] Preferably, the mask respirator also includes a valve plate mounting seat, which is provided with a third clip and a second limit plate, the interior of the respirator body is provided with an air inlet passage which is connected to the plug-in seat and extends toward the user's mouth, and the inner wall of the air inlet passage is provided with a second slot, the valve plate mounting seat is detachably mounted on the end of the air inlet passage by the movable snap connection between the third clip and the second slot, and the second limit plate is abutted against the inner wall of the air inlet passage.

[0015] Preferably, the mask respirator also includes an exhalation valve sheet and a dust cover, the front end of the respirator body is provided with a plug-in slot and an air outlet channel, the upper end of the exhalation valve sheet is installed at the front end of the respirator body, the lower part of the exhalation valve sheet is a free end and abuts against the air outlet channel, and the dust cover is detachably inserted in the plug-in slot and leaves an air outlet gap at the bottom.

[0016] Preferably, the filter comprises an upper cover and a lower cover, and the lower cover is fixedly connected to the upper cover by ultrasonic welding.

[0017] After adopting the above scheme, the utility model provides one-way air intake sockets on both sides of the front end of the respirator body, and provides a connecting part connected to the inside at one end of the filter side wall. The filter is sealed and detachably plugged into the socket through the connecting part, and the front and rear surfaces of the filter are covered with grid holes. In this way, gas can enter the filter from the front and rear surfaces of the filter covered with grid holes, which greatly increases the air intake area of ​​the filter and makes it possible to fully utilize the filter material inside the filter. It has the advantage of high filter material utilization efficiency; and during installation, the filter only needs to be sealed and plugged into the socket through the connecting part. It has the advantages of unique and simple installation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model.

[0019] Figure 2 This is an exploded view of a preferred embodiment of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the respirator body in a preferred embodiment of the utility model.

[0021] Description of main component symbols:

[0022] In the figure: 1. respirator body; 11. socket; 111. through hole; 112. first slot; 113. bump; 12. air inlet channel; 121. second slot; 13. socket; 14. air outlet channel; 2. filter; 21. connecting part; 211. second buckle; 212. first limit plate; 22. grid hole; 23. upper cover; 24. lower cover; 3. sealing member; 31. retaining wall; 4. pressing member; 41. first buckle; 5. valve plate mounting seat; 51. third buckle; 52. second limit plate; 6. exhalation valve plate; 7. dust cover. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] like Figures 1 to 3 As shown, a preferred embodiment of a mask respirator with a plug-in filter of the utility model is shown, the mask respirator comprises a respirator body 1, and a plug-in socket 11 for one-way air intake is provided on both sides of the front end of the respirator body 1; and a filter 2, and one end of the side wall of the filter 2 is provided with a connecting portion 21 connected to the interior, and the filter 2 is sealed and detachably plugged into the plug-in socket 11 through the connecting portion 21, and the front and rear surfaces of the filter 2 are covered with grid holes 22.

[0026] The key point of the utility model is that the utility model provides a one-way air intake socket 11 on both sides of the front end of the respirator body 1, and provides a connecting portion 21 connected to the inside at one end of the side wall of the filter 2. The filter 2 is sealed and detachably plugged into the socket 11 through the connecting portion 21, and the front and rear surfaces of the filter 2 are covered with mesh holes 22. In this way, the gas can enter the filter 2 from the front and rear surfaces of the filter 2 covered with mesh holes 22, which greatly increases the air intake area of ​​the filter 2, so that the filter material inside the filter 2 can be fully utilized, and it has the advantage of high filter material utilization efficiency; and when installing, it only needs to seal the filter 2 on the socket 11 through the connecting portion 21, which has the advantages of unique and simple installation method.

[0027] The above-mentioned mask respirator further includes a seal 3 made of silicone, a through hole 111 is provided on the plug socket 11, the seal 3 is fitted in the through hole 111, and the connecting portion 21 is sealed and inserted in the seal 3 and detachably connected to the plug socket 11. In this way, the seal 3 made of silicone ensures that the filter 2 is sealed and connected to the respirator body 1.

[0028] The outer end of the seal 3 is provided with a retaining wall 31, and the retaining wall 31 is close to the outer end surface of the through hole 111. The mask respirator also includes a pressing member 4, and the two ends of the pressing member 4 are provided with a first buckle 41, and the two sides of the plug socket 11 are provided with a first clamping groove 112, and the first buckle 41 is movably engaged with the first clamping groove 112 and presses the seal 3 into the through hole 111. In this way, while ensuring that the seal 3 is firmly installed, the pressing member 4 can be disassembled, and the seal 3 can be taken out of the through hole 111 for cleaning to remove impurities and odors on the seal 3.

[0029] The upper side of the connecting part 21 is provided with a second buckle 211, and the socket 11 is provided with a protrusion 113, and the second buckle 211 is movably engaged with the protrusion 113; both sides of the connecting part 21 are provided with a first limiting plate 212, and the first limiting plate 212 is attached to the socket 11. In this way, the connecting part 21 and the socket 11 are detachably connected through the cooperation of the second buckle 211 and the protrusion 113; and the limiting effect between the first limiting plate 212 and the socket 11 can make the connection between the filter 2 and the respirator body 1 more firm and stable.

[0030] The above-mentioned mask respirator also includes a valve plate mounting seat 5, on which a third buckle 51 and a second limit plate 52 are provided. An air inlet channel 12 connected to the plug-in seat 11 and extending toward the user's mouth is provided inside the respirator body 1. A second clamping groove 121 is provided on the inner wall of the air inlet channel 12. The valve plate mounting seat 5 is detachably mounted on the end of the air inlet channel 12 through the movable clamping of the third buckle 51 and the second clamping groove 121, and the second limit plate 52 is attached to the inner wall of the air inlet channel 12. In this way, the valve plate mounting seat 5 can be closer to the user's mouth, making it effortless for the user to inhale. The valve plate mounting seat 5 can also be removed from the air inlet channel 12, which makes it more convenient for the user to install the exhalation valve plate, and the valve plate mounting seat 5 can also be cleaned to remove impurities and odors on the valve plate mounting seat 5.

[0031] The above-mentioned mask respirator also includes an exhalation valve sheet 6 and a dust cover 7. The front end of the respirator body 1 is provided with a plug-in slot 13 and an air outlet channel 14. The upper end of the exhalation valve sheet 6 is installed at the front end of the respirator body 1, and the lower part of the exhalation valve sheet is a free end and abuts against the air outlet channel 14. The dust cover 7 is detachably plugged into the plug-in slot 13 and leaves an air outlet gap at the bottom. In this way, when the user exhales, the airflow can blow up the exhalation valve sheet 6 through the air outlet channel 14 and flow downward, and blow out through the air outlet gap below the dust cover 7. The dust cover 7 is provided in front of the exhalation channel, and the airflow is blown out from the bottom, which can effectively prevent flying impurities and particles from accumulating outside the air outlet channel 14.

[0032] The filter 2 comprises an upper cover 23 and a lower cover 24, and the lower cover 24 is fixedly connected to the upper cover 24 by ultrasonic welding. In this way, the connection is more firm and stable.

[0033] The above description of the specific exemplary embodiments of the utility model is for the purpose of illustration and demonstration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that ordinary technicians in the field can realize and use various different exemplary embodiments and various different selections and changes of the utility model. Any appropriate changes or modifications made by ordinary technicians in the technical field should be deemed to be within the patent scope of the utility model.

Claims

1. A facepiece respirator with a plug-in filter (2), Features: The face mask respirator comprises A respirator body (1), wherein both sides of the front end of the respirator body (1) are provided with one-way air intake sockets (11); and a filter (2), wherein one end of the side wall of the filter (2) is provided with a connection portion (21) communicating with the interior, the filter (2) is sealed and detachably plugged into the plug socket (11) via the connection portion (21), and both the front and rear surfaces of the filter (2) are covered with mesh holes (22).

2. A face mask respirator with a plug-in filter (2) as claimed in claim 1, Features: The mask respirator further comprises a sealing member (3) made of silicone, the socket (11) being provided with a through hole (111), the sealing member (3) being fitted in the through hole (111), and the connecting portion (21) being sealingly inserted in the sealing member (3) and detachably connected to the socket (11).

3. A face mask respirator with a plug-in filter (2) as claimed in claim 2, Features: The outer end of the sealing member (3) is provided with a retaining wall (31), the retaining wall (31) being in contact with the outer end surface of the through hole (111), the mask respirator further comprising a pressing member (4), both ends of the pressing member (4) being provided with first buckles (41), both sides of the plug socket (11) being provided with first clamping grooves (112), the first buckles (41) being movably engaged with the first clamping grooves (112) and compressing the sealing member (3) into the through hole (111).

4. A face mask respirator with a plug-in filter (2) as claimed in claim 1, Features: A second buckle (211) is provided on the upper side of the connecting portion (21), a protrusion (113) is provided on the plug socket (11), and the second buckle (211) is movably engaged with the protrusion (113); first limit plates (212) are provided on both sides of the connecting portion (21), and the first limit plates (212) are abutted against the plug socket (11).

5. A face mask respirator with a plug-in filter (2) as claimed in claim 1, Features: The mask respirator further comprises a valve plate mounting seat (5), on which a third buckle (51) and a second limit plate (52) are provided, an air intake passage (12) communicating with the plug-in seat (11) and extending towards the user's mouth is provided inside the respirator body (1), a second clamping groove (121) is provided on the inner wall of the air intake passage (12), the valve plate mounting seat (5) is detachably mounted on the end of the air intake passage (12) by means of movable clamping of the third buckle (51) and the second clamping groove (121), and the second limit plate (52) is abutted against the inner wall of the air intake passage (12).

6. A face mask respirator with a plug-in filter (2) as claimed in claim 1, Features: The face mask respirator further comprises an exhalation valve sheet (6) and a dust cover (7); a plug-in slot (13) and an air outlet passage (14) are provided at the front end of the respirator body (1); the upper end of the exhalation valve sheet (6) is mounted at the front end of the respirator body (1); the lower part of the exhalation valve sheet is a free end and abuts against the air outlet passage (14); the dust cover (7) is detachably plugged into the plug-in slot (13) and has an air outlet gap at the bottom.

7. A face mask respirator with a plug-in filter (2) as claimed in claim 1, Features: The filter (2) comprises an upper cover (23) and a lower cover (24), and the lower cover (24) is fixedly connected to the upper cover (24) by ultrasonic welding.

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