CN215414920U

CN215414920U - Novel gauze mask filtration efficiency test device

Info

Publication number: CN215414920U
Application number: CN202120265499.4U
Authority: CN
Inventors: 毛留伟; 赵作勇; 崔改革; 崔雪丽
Original assignee: Henan Beiya Biotechnology Co ltd
Current assignee: Henan Beiya Biotechnology Co ltd
Priority date: 2021-01-31
Filing date: 2021-01-31
Publication date: 2022-01-04
Anticipated expiration: 2031-01-31

Abstract

The utility model discloses a novel mask filtering efficiency testing device, which comprises a box body, wherein a plurality of air holes are formed in the top end of the box body, a round pipe with threads on the outer part is fixedly installed in the middle of the top end of the box body, the diameter of the distribution range of the air holes is smaller than that of the round pipe, a silica gel sealing ring is movably sleeved at the bottom of the round pipe, the bottom of the silica gel sealing ring is in contact with the middle of the top end of the box body, and a transparent plastic pipe is sleeved on the outer threads of the round pipe, so that the novel mask filtering efficiency testing device has the beneficial effects that: whole device volume is less, and occupation space is not big, so the quality is light conveniently carries different places and uses moreover, through plastic tubing, pipe, clamping device and fixing device and the cooperation that supports the cover, makes things convenient for the testing arrangement installation to dismantle, can fix the gauze mask of testing between two rubber circles through clamping device, makes things convenient for the gauze mask to strut like this, has avoided the gauze mask fold to overlap, thereby avoided the unsafe phenomenon of testing result.

Description

Novel gauze mask filtration efficiency test device

Technical Field

The utility model relates to a mask filtering efficiency testing device, in particular to a novel mask filtering efficiency testing device, and belongs to the technical field of testing devices.

Background

At present, air pollution is more serious, inhalable particles in the air are more and more prominent, particularly, the proportion of PM2.5 is more and more, PM2.5 is also called as an atmospheric pollutant and is a main source of air pollution, compared with other pollutants, the atmospheric pollutant directly enters alveolus and is harmful to human health, so people need to wear a mask when going out at present, and the filtering efficiency of the mask is different at present, so a testing device is needed for testing.

The too big inconvenient carrying of current gauze mask filtration efficiency testing arrangement volume, inconvenient installation is dismantled moreover, generally all wraps up in the measurement mouth when testing the gauze mask, so have the part that the fold overlaps, can lead to the test result inaccurate like this, so need a novel gauze mask filtration efficiency testing arrangement in order to solve above-mentioned problem now.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel mask filtering efficiency testing device, and aims to solve the problems that the existing mask filtering efficiency testing device in the background art is inconvenient to carry and assemble and disassemble, and the testing result is inaccurate due to overlapping of folds of masks.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel mask filtering efficiency testing device comprises a box body, wherein a plurality of air holes are formed in the middle of the top end of the box body, a round pipe with threads on the outer portion is fixedly installed in the middle of the top end of the box body, the diameter of the range where the air holes are distributed is smaller than that of the round pipe, a silica gel sealing ring is movably sleeved at the bottom of the round pipe, the bottom of the silica gel sealing ring is in contact with the middle of the top end of the box body, a transparent plastic pipe is sleeved on the outer threads of the round pipe, a steel wire mesh is movably arranged at the top end of the round pipe and movably arranged inside the plastic pipe, a detector is movably arranged at the top end of the steel wire mesh, four electric telescopic rods are fixedly installed at four corners of the top end of the box body respectively, four clamping devices are fixedly installed at the top ends of the electric telescopic rods and comprise two clamping plates, one of the two clamping plates is fixedly arranged at the top ends of the four electric telescopic rods, two through two first bolt swing joint between the splint, the equal fixed mounting in the top of one of them splint and the bottom of another splint has the rubber circle, two the through-hole has all been seted up on the splint, two the diameter of rubber circle all is greater than the diameter of two through-holes, two the diameter of through-hole all is greater than the diameter of plastic tubing, two press from both sides between the rubber circle and be equipped with the test gauze mask, the air discharge fan is installed in the bottom interlude of box, box bottom fixed mounting all around has fixing device.

According to a preferred technical scheme of the utility model, the fixing device comprises a square annular fixing plate and a silica gel gasket, the fixing plate and the silica gel gasket are fixedly sleeved at the bottom of the box body, and four second bolts penetrate through the periphery of the fixing plate in a threaded manner respectively.

As a preferred technical scheme of the utility model, the bottom end of the silica gel gasket is fixedly connected with a supporting cover through four second bolts.

As a preferable technical scheme of the utility model, a round hole is formed on the side of the support cover.

As a preferable technical scheme of the utility model, a storage battery is fixedly arranged at the top of one side of the box body.

As a preferred technical scheme of the utility model, a switch panel is fixedly mounted at the top of the other side of the box body, a negative pressure switch and a telescopic switch are respectively fixedly mounted on the switch panel, and the four electric telescopic rods and the exhaust fan are respectively electrically connected with the storage battery through the telescopic switch and the negative pressure switch.

Compared with the prior art, the utility model has the beneficial effects that: according to the novel mask filtering efficiency testing device, the whole device is small in size, small in occupied space and light in weight, so that the novel mask filtering efficiency testing device is convenient to carry to different places for use, the testing device is convenient to mount and dismount through the matching of the plastic pipe, the circular pipe, the clamping device, the fixing device and the supporting cover, the mask for testing can be fixed between the two rubber rings through the clamping device, the mask is convenient to unfold, the folds of the mask are prevented from being overlapped, and the phenomenon that the detection result is inaccurate is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention.

In the figure: 1. a box body; 2. air holes are formed; 3. a circular tube; 4. a silica gel seal ring; 5. a plastic tube; 6. steel wire mesh; 7. a detector; 8. an electric telescopic rod; 9. a clamping device; 91. a splint; 92. a first bolt; 93. a rubber ring; 94. a through hole; 10. testing the mask; 11. an exhaust fan; 12. a fixing device; 121. a fixing plate; 122. a silica gel gasket; 123. a second bolt; 13. a support housing; 14. a circular hole; 15. a storage battery; 16. a switch panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a novel mask filtration efficiency testing device, which comprises a box body 1, wherein a plurality of air holes 2 are formed in the middle of the top end of the box body 1, a round pipe 3 with threads on the outer part is fixedly installed in the middle of the top end of the box body 1, the diameter of the distribution range of the plurality of air holes 2 is smaller than that of the round pipe 3, a silica gel sealing ring 4 is movably sleeved at the bottom of the round pipe 3, the bottom of the silica gel sealing ring 4 is in contact with the middle of the top end of the box body 1, a transparent plastic pipe 5 is sleeved on the outer threads of the round pipe 3, a steel wire mesh 6 is movably arranged at the top end of the round pipe 3, a detector 7 is movably arranged at the top end of the steel wire mesh 6, four electric telescopic rods 8 are respectively and fixedly installed at four corners of the top end of the box body 1, a clamping device 9 is fixedly installed at the top ends of the four electric telescopic rods 8, the clamping device 9 comprises two clamping plates 91, one of the clamping plates 91 is fixedly arranged at the top ends of the four electric telescopic rods 8, the two clamping plates 91 are movably connected through two first bolts 92, the top end of one of the clamping plates 91 and the bottom end of the other clamping plate 91 are fixedly provided with rubber rings 93, through holes 94 are formed in the two clamping plates 91, the diameters of the two rubber rings 93 are larger than the diameters of the two through holes 94, the diameters of the two through holes 94 are larger than the diameter of the plastic pipe 5, a testing mask 10 is clamped between the two rubber rings 93, an exhaust fan 11 is installed at the bottom end of the box body 1 in an inserting mode, a fixing device 12 is fixedly arranged at the bottom of the periphery of the box body 1, the plastic pipe 5 can be communicated with the inside of the box body 1 through the air holes 2, the plastic pipe 5 can be conveniently installed and disassembled through the circular pipe 3, meanwhile, the silica gel sealing ring 4 can increase air tightness, and the steel wire mesh 6 is used for preventing the detector 7 from blocking the air holes 2, can extrude test gauze mask 10 to the top of plastic tubing 5 through electric telescopic handle 8 and clamping device 9's cooperation, avoid simultaneously the test to appear the phenomenon that the fold overlaps with gauze mask 10 when covering the top of plastic tubing 5, can form the negative pressure with the inside of box 1 through air discharge fan 11.

Preferably, the fixing device 12 includes a fixing plate 121 and a silica gel gasket 122 in a square ring shape, the fixing plate 121 and the silica gel gasket 122 are both fixedly disposed at the bottom of the periphery of the box 1, four second bolts 123 are respectively threaded through the periphery of each silica gel gasket 122 on the periphery of the fixing plate 121, the fixing device 12 can facilitate the mounting and dismounting of the support cover 13, the bottom end of the silica gel gasket 122 is fixedly connected with the support cover 13 through the four second bolts 123, a circular hole 14 is formed in the lateral side of the support cover 13, the box 1 can be supported through the support cover 13, the bottom end of the box 1 is prevented from being covered to affect exhaust, the box 1, the clamping device 9 and the electric telescopic rod 8 can be placed inside the support cover 13 when being folded, the carrying is facilitated, the protection effect on the devices can be achieved, meanwhile, the circular hole 14 is used for exhausting, a storage battery 15 is fixedly mounted at the top of one side of the box 1, the top of the other side of the box body 1 is fixedly provided with a switch panel 16, the switch panel 16 is respectively and fixedly provided with a negative pressure switch and a telescopic switch, and the four electric telescopic rods 8 and the exhaust fan 11 are respectively and electrically connected with the storage battery 15 through the telescopic switch and the negative pressure switch.

When the novel mask filtering efficiency testing device is used, firstly, the support cover 13 is fixed through the second bolt 123 in the fixing device 12, at the moment, the support cover 13 is tightly attached to the silica gel gasket 122, meanwhile, the electric telescopic rod 8 is controlled through the telescopic switch to lift the clamping device 9 to the top, the first bolt 92 is rotated to separate the two clamping plates 91, at the moment, the mask 10 for testing is placed between the two rubber rings 93, the two rubber rings 93 are tightly clamped through rotating the first bolt 92 again, at the moment, the mask 10 for testing is fixed, secondly, the steel wire gauze 6 is placed at the top end of the circular tube 3, the detector 7 with the type being SW-825 is opened and placed at the top end of the steel wire gauze 6, at the moment, the electric telescopic rod 8 is controlled through the telescopic switch to slowly descend the clamping device 9, one through hole 94 penetrates through the plastic tube 5 until the mask 10 for testing is tightly attached to the top end of the plastic tube 5, open exhaust fan 11 through the negative pressure switch and make the inside formation negative pressure of box 1, the gas of bottom can be discharged from round hole 14, outside air can see through test gauze mask 10 and circulate in the inside of plastic tubing 5, detector 7 will detect out PM 2.5's content in the air after filtering like this, see through plastic tubing 5 and can observe the testing result once, and assay department tests the filtration efficiency of gauze mask 10, finally, through pipe 3, plastic tubing 5, clamping device 9, fixing device 12 and support cover 13 alright dismantle whole device, can be with box 1 after the dismantlement is accomplished, plastic tubing 5, electric telescopic handle 8 and clamping device 9 are put in the inside of supporting cover 13, thereby make things convenient for it to carry, deposit, also can play the effect of protection to these equipment.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel mask filtering efficiency testing device comprises a box body (1) and is characterized in that a plurality of air holes (2) are formed in the middle of the top end of the box body (1), a round pipe (3) with threads is fixedly mounted in the middle of the top end of the box body (1), the diameter of the distribution range of the air holes (2) is smaller than that of the round pipe (3), a silica gel sealing ring (4) is movably sleeved at the bottom of the round pipe (3), the bottom of the silica gel sealing ring (4) is in contact with the middle of the top end of the box body (1), a transparent plastic pipe (5) is sleeved on the outer threads of the round pipe (3), a steel wire mesh (6) is movably arranged at the top end of the round pipe (3), the steel wire mesh (6) is movably arranged inside the plastic pipe (5), a detector (7) is movably arranged at the top end of the steel wire mesh (6), four corners on the top of the box body (1) are respectively fixedly provided with four electric telescopic rods (8), four clamping devices (9) are fixedly arranged on the top ends of the electric telescopic rods (8), each clamping device (9) comprises two clamping plates (91), one clamping plate (91) is fixedly arranged on the top ends of the four electric telescopic rods (8), the two clamping plates (91) are movably connected through two first bolts (92), the top end of one clamping plate (91) and the bottom end of the other clamping plate (91) are respectively fixedly provided with a rubber ring (93), through holes (94) are respectively formed in the two clamping plates (91), the diameters of the two rubber rings (93) are respectively larger than the diameters of the two through holes (94), the diameters of the through holes (94) are respectively larger than the diameter of the plastic pipe (5), and a testing mask (10) is clamped between the rubber rings (93), the bottom of box (1) alternates installs air discharge fan (11), box (1) bottom fixed mounting all around has fixing device (12).

2. The novel mask filtration efficiency testing device according to claim 1, wherein: fixing device (12) are including square annular fixed plate (121) and silica gel gasket (122), fixed cover is all established in box (1) bottom all around in fixed plate (121) and silica gel gasket (122), the screw thread runs through respectively around fixed plate (121) has four second bolts (123).

3. The novel mask filtering efficiency testing device according to claim 2, characterized in that: the bottom of silica gel gasket (122) is through being connected with support cover (13) through four second bolt (123) fixedly.

4. The novel mask filtration efficiency testing device according to claim 3, wherein: the side of the support cover (13) is provided with a round hole (14).

5. The novel mask filtration efficiency testing device according to claim 1, wherein: and a storage battery (15) is fixedly mounted at the top of one side of the box body (1).

6. The novel mask filtration efficiency testing device according to claim 1, wherein: the top fixed mounting of box (1) opposite side has flush mounting plate of switch (16), there are negative pressure switch and telescopic switch, four respectively fixed mounting on flush mounting plate of switch (16) electric telescopic handle (8) and air discharge fan (11) are respectively through telescopic switch and negative pressure switch and battery (15) electric connection.