CN111929213B - Gauze mask filters check out test set - Google Patents
Gauze mask filters check out test set Download PDFInfo
- Publication number
- CN111929213B CN111929213B CN202010665543.0A CN202010665543A CN111929213B CN 111929213 B CN111929213 B CN 111929213B CN 202010665543 A CN202010665543 A CN 202010665543A CN 111929213 B CN111929213 B CN 111929213B
- Authority
- CN
- China
- Prior art keywords
- hole
- plate
- mounting
- section
- bowl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 239000002245 particle Substances 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 239000000443 aerosol Substances 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000003292 glue Substances 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims description 16
- 238000013519 translation Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000013618 particulate matter Substances 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000003472 neutralizing effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 9
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000011160 research Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000711573 Coronaviridae Species 0.000 description 1
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/084—Testing filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Sampling And Sample Adjustment (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a mask filtering detection device which comprises a machine base, wherein an upper pressure plate capable of moving up and down and a lower pressure plate fixedly installed are arranged in a test space, the upper pressure plate is provided with a lower bowl-shaped section and an upper cylindrical section, a glue inlet is formed in the side wall of the upper cylindrical section, an upper pressure difference sensor and an upper particle counter are installed on the upper pressure plate, the lower pressure plate is provided with an upper bowl-shaped section and a lower cylindrical section, a lower pressure difference sensor and a lower particle counter are installed on the lower pressure plate, an air blower and an aerosol particle supply mechanism are arranged in the machine base, a high-temperature standing box, a low-temperature standing box and a normal-temperature standing box are arranged in the machine base, and a detection data processing system used for calculating and displaying a detection result is arranged on the machine base. Compared with the prior art, the filter effect of gauze mask can be learnt fast to the tester, and whole operation is simple and easy, saves time, and is quick, small to make things convenient for the transfer of whole platform equipment, convenient to use.
Description
Technical Field
The invention relates to detection equipment, in particular to detection equipment for the filtering effect of a mask.
Background
Along with the continuous improvement of the industrialization level, the exhaust gas such as industrial and automobile exhaust is continuously discharged, the air quality problem is more and more serious, the health of people is seriously influenced, and meanwhile, the mask becomes a necessary article for most people under the influence of new coronavirus. At present, the mask on the market is full of flowers, so that the selection of consumers on the mask lies in the style and the shape, and the mask can really function as a barrier, so that the consumers cannot distinguish the advantages and the disadvantages. In order to enable consumers to select the mask with excellent blocking performance, the detection of the blocking performance of the mask is needed, and the blocking performance of the mask to small particles can be detected.
Although many researchers and researchers are continuously involved in the development of the barrier performance detection device for the mouth mask, many detection devices are large in size and have more detection conditions, and for some industrial plants and workers in research institutes, the detection device is safest to detect the mouth mask when being used every day, so that the existing detection device is not suitable for being used in the industrial plants or the research institutes to facilitate the detection of people.
Accordingly, the present inventors have made extensive studies on the above problems, and as a result, the present invention has been made.
Disclosure of Invention
In view of the above, the present invention provides a mask filtration detection device that is convenient for personnel in an industrial plant or a research institute to quickly detect the mask filtration rate, and has the advantages of convenient detection operation and small size.
In order to achieve the above purpose, the solution of the invention is: the utility model provides a gauze mask filters check out test set, which comprises a support, the bottom of frame is equipped with the walking wheel, above-mentioned frame has the test space, be equipped with in the above-mentioned test space and reciprocate and be hollow structure's last pressure disk and fix and be in the lower pressure disk below product or hollow structure's that is in on the frame lower pressure disk, above-mentioned last pressure disk has from lower to upper convergent lower bowl shape section and with be in the last cylinder section that bowl shape section top and lower bowl shape section link up, be equipped with on the lateral wall of above-mentioned last cylinder section and supply the colloidal sol particulate matter to squeeze into glue mouthful in, and install the last differential pressure sensor that is used for testing lower cylinder section internal pressure and calculate the last particle counter of particle number in the lower cylinder section on the above-mentioned last cylinder section, above-mentioned lower pressure disk has from upper bowl shape section of up-to-down convergent and with be in the upper bowl shape section below and the lower cylinder section link up, install the lower differential pressure sensor that is used for testing lower cylinder section and calculate the lower particle number in the lower cylinder section on the above-mentioned lower cylinder section The lower parts of the lower cylindrical section and the upper bowl-shaped section are positioned in the machine base, the machine base is internally provided with an air blower communicated with the lower cylindrical section, the machine base is internally provided with an aerosol particle supply mechanism capable of heating, mixing, regulating pressure and neutralizing static electricity of generated aerosol particles, the output end of the aerosol particle supply mechanism is communicated with the glue inlet, the machine base is internally provided with a high-temperature standing box with the internal temperature of 67-73 ℃, a low-temperature standing box with the internal temperature of 27-33 ℃ below zero and a normal-temperature standing box with the internal temperature of normal temperature, and the machine base is provided with a detection data processing system for calculating and displaying a detection result.
The machine base is provided with an upper base body and a lower base body which are both of a hollow structure, the upper base body is erected at the rear part of the top surface of the lower base body, a mounting base which is arranged in a hanging mode and is of a hollow structure is arranged on the upper portion of the front side face of the upper base body in a protruding mode forwards, the mounting base and the top surface of the lower base body are arranged in a testing space in an interval mode, the upper pressure plate is located below the mounting base, a mounting plate is fixedly arranged on the top surface of the upper pressure plate, a lifting cylinder which is arranged vertically and located above the upper pressure plate is installed in the mounting base, a stretching hole for downward stretching of a piston rod of the lifting cylinder is formed in the bottom surface of the mounting base, the piston rod of the lifting cylinder is fixedly matched with the mounting plate, a control switch for controlling the lifting cylinder to work is installed on the top surface of the lower base body, and a pipeline stretching hole is formed in the position of the front side wall of the upper base body.
The bottom surface of the mounting seat is an inclined surface which is inclined downwards from outside to inside, the bottom surface of the mounting seat is positioned at the upper pressure plate and is convexly provided with a mounting block body, the bottom surface and the front side surface of the mounting block body are in a plane, the mounting plate is horizontally arranged along the front-back direction, the bottom surface of the mounting seat is provided with a channel, one end of the channel extends to the front side of the bottom surface of the mounting block body, the other end of the channel extends to the lower part of the front side wall of the upper seat body, and the channel is communicated with the upper seat body and the mounting seat.
The hollow cavity of the mounting seat is communicated with the hollow cavity of the upper seat body, a vertical plate which is vertically arranged on the top surface of the lower seat body is fixedly arranged at the position of an upper pressure plate on the front side wall of the upper seat body, the upper end of the vertical plate extends into the mounting seat, a strip-shaped through hole which extends along the vertical direction is formed in the vertical plate, an inclined hole which is communicated with the strip-shaped through hole at one end and extends along the inclined direction of the bottom surface of the mounting seat is formed in the position of the bottom surface of the mounting seat opposite to the strip-shaped through hole, a transverse through hole which extends along the front-back direction and is communicated with the inclined hole at the rear end is formed in the bottom surface of the mounting block body, the transverse through hole, the inclined hole and the strip-shaped through hole form a channel, a mounting transverse plate is convexly arranged forwards at the top end of the vertical plate, and the lifting cylinder is arranged on the mounting transverse plate.
The bottom of the lower base body is provided with a mounting hole for the upper pressure plate, the lower base body is arranged at the mounting hole and is stacked with a placing plate, the rear side face of the placing plate is forwardly and concavely provided with an embedding hole for embedding the lower end part of the aligning plate, the rear side of the top face of the placing plate is erected with a fastening plate which is respectively attached and matched with the left side wall and the right side wall of the vertical plate and locked together, the upper part of the upper bowl-shaped section is arranged in the embedding hole, and the upper end part of the upper bowl-shaped section is convexly provided with a limiting convex ring which penetrates out of the embedding hole and is stacked on the placing plate and locked together with the placing plate.
The round piece has been placed on above-mentioned spacing bulge loop, set up on the aforesaid go up the round piece with last bowl shape section communicating and along the oval-shaped hole that left right direction extends, the hole that the top surface of the aforesaid goes up the round piece lies in oval-shaped hole is equipped with the lantern ring bulge loop that supplies N95 gauze mask to overlap in outside along the department to the epirelief, it compresses tightly the round piece to stack on the aforesaid goes up the round piece, set up on the aforesaid compresses tightly the round piece and supply lantern ring bulge loop to imbed in the interior hole of stretching out.
The front side of the lower seat body is provided with an opening door which is opened left and right respectively, the high-temperature standing box, the low-temperature standing box and the normal-temperature standing box are stacked in the lower seat body up and down, the air blower is positioned in the lower seat body, the output end of the air blower is vertically arranged upwards, the lower end of the lower cylindrical section is locked with a communicating pipe which is connected and communicated with the output end of the air blower, an inner funnel which is gradually reduced from top to bottom is arranged in the communicating pipe, a space is arranged between the inner funnel and the communicating pipe, the lower end of the inner funnel integrally extends to a bent pipe which extends towards the side wall of the communicating pipe, the side wall of the communicating pipe is provided with a circular through hole, the free end of the bent pipe is tightly sleeved in the circular through hole, the outer side wall of the lower seat body is provided with a recovery cylinder, one end of the recovery cylinder is communicated with the recovery cylinder, The other end of the recovery pipe is communicated with the circular through hole.
Above-mentioned high temperature case, low temperature case and the normal atmospheric temperature case of stewing all include the box, and the opening has been seted up to the leading flank of box, and above-mentioned internal being equipped with can be through the outside translation pull of opening out the external board of placing of box, and the above-mentioned leading flank of placing the board flushes with the leading flank of above-mentioned box mutually, and the above-mentioned internal translation cylinder that is equipped with control and places the board translation that is equipped with of box, above-mentioned translation cylinder and the above-mentioned control connection that detects data processing system.
After the technical scheme is adopted, the mask filtering detection equipment is directly pushed into a factory building or a research institute when in application, the mask is flatly attached above the upper bowl-shaped section of the lower pressure plate, the upper pressure plate moves downwards to be overlapped on the upper mask, the aerosol particulate matter supply mechanism is started, aerosol particulate matters generated by the aerosol particulate matter supply mechanism enter the upper pressure plate, the air blower is started to generate a drawing force on the lower pressure plate, the aerosol particulate matters in the upper pressure plate downwards penetrate the mask to the lower pressure plate under the influence of the drawing force, meanwhile, the upper pressure difference transmitter, the upper particle counter, the lower pressure difference sensor and the lower particle counter respectively work to sense data and send the data to the detection data processing system, and the resistance value calculated by the detection data processing system is displayed, so that a tester can quickly know the filtering effect of the mask, the whole operation is simple, time-saving, quick, small in size, convenient to use and convenient to transfer the whole equipment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention without a stand;
FIG. 3 is a schematic view of the combination of the upper platen and the lower platen of the present invention.
Detailed Description
The invention relates to a mask filtering and detecting device, which is shown in figures 1-3 and comprises a machine base 1, wherein the bottom of the machine base 1 is provided with a traveling wheel 2, the machine base 1 is provided with a testing space, an upper pressure plate 3 which can move up and down and is of a hollow structure and a lower pressure plate 4 which is fixed on the machine base and is positioned below the upper pressure plate 3 or of a hollow structure are arranged in the testing space, the upper pressure plate 3 is provided with a lower bowl-shaped section 31 which is gradually reduced from bottom to top and an upper cylindrical section 32 which is positioned above the lower bowl-shaped section and is communicated with the lower bowl-shaped section, the side wall of the upper cylindrical section 32 is provided with a glue inlet 321 for injecting sol particles into, the upper cylindrical section 32 is provided with an upper differential pressure sensor (not shown in the figures) for testing the pressure in the lower cylindrical section and an upper particle counter (not shown in the figures) for calculating the particle number in the lower cylindrical section, namely, the outer side wall of the upper cylindrical section 32 is provided with mounting holes for respectively installing the upper differential pressure sensor and the upper particle counter, the lower pressure plate 4 is provided with an upper bowl-shaped section 41 which is gradually reduced from top to bottom and a lower cylindrical section 42 which is positioned below the upper bowl-shaped section 41 and is communicated with the upper bowl-shaped section, the lower cylindrical section 42 is provided with a lower pressure difference sensor (not shown in the figure) for testing the pressure in the lower cylindrical section and a lower particle counter (not shown in the figure) for calculating the particle number in the lower cylindrical section, the lower parts of the lower cylindrical section 42 and the upper bowl-shaped section 41 are positioned in the machine base 1, the machine base 1 is internally provided with a blower (not shown in the figure) communicated with the lower cylindrical section 42, the machine base 1 is internally provided with an aerosol particle supply mechanism which can heat, mix, regulate and neutralize static electricity for the generated aerosol particles, the output end of the aerosol particle supply mechanism is communicated with a glue inlet, the aerosol particle supply mechanism is a known technology in the prior art and is generally used for testing the filtering effect of the particles, and the aerosol generator mainly generates high-concentration aerosol particles, the generated aerosol particles can be tested after heating, mixing, pressure regulation and electrostatic neutralization, and the treatment is the prior known technology and is not described in detail herein.
A high-temperature standing box (not shown in the figure) with the internal temperature of 67-73 ℃ and a low-temperature standing box (not shown in the figure) with the internal temperature of 27-33 ℃ below zero are arranged in the machine base 1, a detection data processing system for calculating and displaying a detection result is arranged on the machine base 1, the detection data processing system is a known data processing system, the data processing system mainly comprises a processor and a display screen, and the specific control principle is as follows: the output end of the upper differential pressure sensor, the output end of the upper particle counter, the output end of the lower differential pressure sensor and the output end of the lower particle calculator are respectively and electrically connected with the input end of the processor, the control end of the processor is respectively and controllably connected with the blower and the aerosol particle supply mechanism, and the processor is bidirectionally connected with the display screen; during the application, go up differential pressure sensor, go up the particle counter, the differential pressure sensor pushes down, the data transmission that the particle calculator sensed down sends the treater, carry out the comprehensive operation according to data after the treater receives and reachs the filter effect of test sample, and calculate the resistance value that reachs test sample, the data that the treater was handled are shown through the display screen, and simultaneously, go up differential pressure sensor, go up the particle counter, the differential pressure sensor pushes down, the data of particle calculator also can show through the display screen down, also the pressure adjustment key of adjusting the air-blower pressure on the display screen, be equipped with the master switch who opens data processing system on the upper portion front side of frame 1.
The machine base 1 is provided with an upper seat body 11 and a lower seat body 12 which are both in a hollow structure, the lower seat body 12 is a hollow square seat body, the front side surface of the lower seat body 12 is open, the front side of the lower seat body is hinged with a left opening door 13 and a right opening door 13, four corners of the bottom surface of the lower seat body 12 are respectively provided with traveling wheels 2, and the whole machine base 1 is convenient to carry through four rows of traveling wheels 2; the upper seat body 11 is erected at the rear part of the top surface of the lower seat body 12, the width of the upper seat body 11 is smaller than half of the width of the lower seat body, the upper part of the front side surface of the upper seat body 11 is convexly provided with a mounting seat 111 which is suspended and is of a hollow structure, and the space between the mounting seat 111 and the top surface of the lower seat body 12 is the testing space.
Go up the pressure disk and be in mount pad 111 below, the top surface lock solid of going up pressure disk 3 has mounting panel 33, install in the mount pad 111 and erect the setting and be in the lift cylinder (not drawn in the picture) of last pressure disk 3 top, the bottom surface of mount pad 111 is seted up the stretch out hole that supplies the piston rod of lift cylinder to stretch out downwards, the piston rod and the mounting panel 33 fixed coordination of lift cylinder, the position that the top surface of lower pedestal 12 is located test space the place ahead is installed the control switch (not drawn in the picture) of control lift cylinder work, the preceding lateral wall of upper base body 1 has been seted up the pipeline to being located last pressure disk and has been stretched out the hole.
Specifically, the bottom surface of the mounting seat 111 is an inclined surface which is inclined downwards from outside to inside, the inclined surface is utilized to enable the lifting of the lifting cylinder and the placement space of the object to be tested to be wide, a mounting block 112 with a plane bottom surface and a plane front side surface is convexly arranged at the position, located on the upper platen 3, of the bottom surface of the mounting seat 111, the mounting block 112 is of a hollow structure and is communicated with the mounting seat 111, the mounting plate 33 is horizontally arranged along the front-back direction, a channel with one end extending to the front side of the bottom surface of the mounting block and the other end extending to the lower part of the front side wall of the upper seat body is formed in the bottom surface of the mounting seat 111, and the channel is communicated with the upper seat body and the mounting seat; that is, the hollow chamber of the mounting seat 111 is communicated with the hollow chamber of the upper seat 11, the rear side of the mounting seat 111 is communicated with the front side of the upper seat 11, the front side wall of the upper seat 11 is locked and installed with a vertical plate 51 erected on the top surface of the lower seat 12 at the position corresponding to the upper platen, the upper end of the vertical plate 51 extends into the mounting seat 111, the left and right sides of the vertical plate 51 are attached and matched with the front side wall of the upper seat 11, the front side wall of the upper seat 11 is provided with a through hole extending to the bottom surface of the mounting seat corresponding to the position, the vertical plate 51 is provided with a strip-shaped through hole 511 extending in the up-down direction, the bottom surface of the mounting seat 111 is provided with an inclined hole 113 having one end communicated with the strip-shaped through hole 511 and extending in the inclined direction of the bottom surface of the mounting seat, the bottom surface of the mounting block 112 is provided with a transverse through hole (not shown in the figure) extending in the front-back direction and having a rear end communicated with the inclined hole 113, horizontal through-hole, inclined hole and bar through-hole constitute the passageway, the top of riser 51 is equipped with installation diaphragm 511 to the forward projection, and the lift cylinder is installed on this installation diaphragm 511, utilizes the structure of this patent application to prescribe a limit to make the installation and the lift of lift cylinder not account for the position on the one hand, and on the other hand makes whole overall arrangement compact, and can not cause the space to prescribe a limit to for placing of the sample that awaits measuring.
The bottom surface of the lower seat body 12 is provided with a mounting hole (not shown in the figure) at the position corresponding to the upper pressure plate 3, the lower seat body 12 is stacked with a placing plate 52 at the mounting hole, the rear side surface of the placing plate 52 is recessed forwards to form an embedding hole (not shown in the figure) for embedding the lower end part of the aligning plate, the rear side of the top surface of the placing plate 52 is vertically provided with a fastening plate 53 which is respectively matched with the left side wall and the right side wall of the vertical plate in an attaching way and locked together, the upper part of the upper bowl-shaped section 41 is positioned in the embedding hole, and the upper end part of the upper bowl-shaped section 41 is convexly provided with a limiting convex ring 411 which penetrates out of the embedding hole and is stacked on the placing plate 52 and locked together with the placing plate 52 through screws; adopt this kind of mounting structure of pressure disk down, the dismouting of pressure disk is changed easily down on the one hand, and on the other hand erects the installation of board 51 and has the counterpoint effect, and each part can the split transportation of getting off when guaranteeing the transportation, avoids whole transportation to cause the problem of part damage, and the split equipment after the transportation can be accurate.
The high-temperature standing box and the low-temperature standing box are vertically stacked in the front side of the lower base body 12, the high-temperature standing box is a box body which is internally provided with an electric heating wire and can be opened, the low-temperature standing box is a box body which is internally provided with a refrigerating system and can be opened, the high-temperature standing box and the low-temperature standing box are internally provided with placing plates, the electric heating wire and the refrigerating system are both in control connection with a processor, an air blower is positioned in the middle area of the lower base body 12, the output end of the air blower is vertically arranged upwards, the lower end of the lower cylindrical section 42 is locked and fixedly connected with and communicated with a communicating pipe 6 of the output end of the air blower, an inner funnel 7 which is gradually reduced from top to top is arranged in the communicating pipe 6, a space is reserved between the inner funnel 7 and the communicating pipe 6, an elbow 71 which extends towards the side wall direction of the communicating pipe extends integrally from the lower end of the inner funnel 7, and the side wall of the communicating pipe 6 is provided with a circular through hole 61, the free end of the elbow 71 is tightly sleeved in the circular through hole 61, the outer side wall of the lower seat 12 is provided with a recovery cylinder (not shown in the figure), the recovery cylinder is provided with a recovery pipe (not shown in the figure) of which one end is communicated with the recovery cylinder and the other end is communicated with the circular through hole, and the installation height of the recovery cylinder is lower than that of the circular through hole 61.
When the mask filtering detection device is applied, the mask is directly pushed into a factory building or a research institute, when the mask filtering detection device is applied, the mask is flatly paved above an upper bowl-shaped section 41 of a lower pressure plate 4, a main switch is turned on, a control switch is operated, an upper pressure plate 3 moves downwards and is overlapped on the upper mask, a lower bowl-shaped section 31 of the upper pressure plate is overlapped with the lower bowl-shaped section 41 and stops descending, an aerosol particle supply mechanism and an air blower are started, aerosol particles generated by the aerosol particle supply mechanism enter the upper pressure plate, the air blower generates a drawing force on the lower pressure plate, the aerosol particles in the upper pressure plate can downwards penetrate through the mask to the lower pressure plate under the influence of the drawing force, most of the aerosol particles penetrating through the mask can fall into an inner funnel 7 and flow downwards into a recovery pipe through an elbow 71 of the inner funnel to finally flow into a recovery cylinder; meanwhile, the upper differential pressure transmitter, the upper particle counter, the lower differential pressure sensor and the lower particle counter respectively work, sense data and send the data to the detection data processing system, and the resistance value calculated by the detection data processing system is displayed at the moment, so that a tester can quickly know the filtering effect of the mask, the whole operation is simple, time-saving and quick, the whole equipment is convenient to transfer, and the use is convenient; in addition, the arrangement of the upper seat body, the lower seat body, the mounting seat and the mounting block body enables the air blower, the high-temperature standing box and the low-temperature standing box to be placed in the lower seat body, the aerosol particle supply mechanism is placed in the upper seat body and the mounting seat, and the lifting cylinder is arranged in the mounting block body, so that the overall arrangement is compact, the occupied space is avoided, and the overall appearance volume of the whole equipment is smaller; and through the combination of the inner funnel and the communicating pipe and the combination of the inner funnel and the recovery cylinder which are specified by the applicant, the wind suction force of the air blower can be transmitted to the mask, meanwhile, aerosol particles can be recovered, and the problem that the air blower is damaged due to the fact that the aerosol particles flow into the air blower along with wind can be solved.
In the invention, the high-temperature placing box is a drawing type placing box which can keep the temperature below 70 +/-3 ℃ for 24 hours and automatically stop heating after 24 hours, the low-temperature placing box is a drawing type placing box which can keep the temperature in minus or plus 3 ℃ for 24 hours and automatically stop refrigerating after 24 hours, the normal-temperature placing box is a drawing type placing box which can automatically pop out after 4 hours, namely, a drawing plate which can draw out downwards is arranged in the box body, the front side surface of the drawing plate is flush with the front side surface of the box body, the front side surface of the box body is provided with a through hole for drawing out the drawing plate, a push-pull air cylinder which controls the drawing plate to move horizontally is arranged in the box body, each push-pull air cylinder is in control connection with a processor, the input end of the processor is electrically connected with a control switch button which respectively controls the work of each push-pull air cylinder, therefore, the drawing plate can be automatically popped out forwards by the high-temperature placing box and the low-temperature placing box after 24 hours, the normal temperature placing box can automatically pop out after 4 hours, and three box bodies are adopted, so that when the equipment is applied in a research institute and a researcher is used for accurately detecting the filtering effect of the mask, the mask can be placed on a drawing plate of the high temperature placing box and placed for 24 hours in an environment of 70 +/-3 ℃; place back pull board auto-eject, the researcher can be with the gauze mask commentaries on classics put to the pull board that the case was placed to the low temperature, and place 24h in-30 ℃ +/-3 ℃ environment, place back pull board auto-eject, the researcher places the gauze mask on the pull board that the case was placed to the normal atmospheric temperature again, and place just take out after 4h under the normal atmospheric temperature condition and place and test on the pressure disk down, make the gauze mask carry out the high temperature immediately after standing horse low temperature promptly normal atmospheric temperature is handled like this, the bacterium that makes the gauze mask of treating to detect can germicidal treatment, thereby make the filtration detection of gauze mask comparatively accurate, in addition, also can make things convenient for workman or institute to carry out disinfection treatment with the gauze mask that needs to use next day in advance one day, the function is various.
In the invention, an upper round block (not shown in the figure) is placed on the limit convex ring 411, an oval hole which is communicated with the upper bowl-shaped section and extends along the left-right direction is formed in the upper round block, a lantern ring convex ring for sleeving an N95 port cover tightly outside is arranged on the top surface of the upper round block in an upward protruding mode at the position of the hole edge of the oval hole, a compression round block is stacked on the upper round block, and an extending hole for embedding the lantern ring convex ring into the compression round block is formed in the compression round block; like this, tightly overlap N95 gauze mask on the tight bulge loop of cover, then place the disk under on, later cover and compress tightly the disk, the detection site of N95 gauze mask upwards stretches out through stretching out the hole and compresses tightly outside the disk this moment, when going up the pressure disk and pushing down, it is tightly folding on compressing tightly the disk to go up the pressure disk, the detection site of N95 gauze mask stretches into in the lower bowl shape section of last pressure disk, and thus, whole equipment also can detect N95 gauze mask, it is various to detect the product, detection range is wide, need not to dispose an N95 gauze mask check out test set alone, and N95 gauze mask is the fixed state of compressing tightly during the detection, can not squint, detection effect is good.
The above embodiments and drawings are not intended to limit the form and style of the product of the present invention, and any suitable changes or modifications thereof by one of ordinary skill in the art should be considered as not departing from the scope of the present invention.
Claims (6)
1. A gauze mask filters check out test set, wherein including the frame, the bottom of frame is equipped with the walking wheel, the above-mentioned frame has test spaces, there are upper pressure disks that can move up and down and present hollow structure and lower pressure disks that are fixed on frame and present hollow structure below the upper pressure disk in the above-mentioned test space, the above-mentioned upper pressure disk has from bottom to top convergent lower bowl-shaped section and upper cylinder section that is in the upper of lower bowl-shaped section and is well versed in with lower bowl-shaped section, there are glue inlets for the colloidal sol particulate matter to hit into in on the sidewall of the above-mentioned upper cylinder section, and install the upper differential pressure sensor used for testing the internal pressure of upper cylinder section and upper particle counter of the particle number in the upper cylinder section on the above-mentioned upper cylinder section, the above-mentioned lower pressure disk has from top to bottom convergent upper bowl-shaped section and lower cylinder section that is in the lower bowl-shaped section and well versed in with upper bowl-shaped section, install the lower differential pressure sensor used for testing the lower cylinder section and calculate the lower cylinder section in the above-mentioned lower cylinder section A lower particle counter with internal particle number, wherein the lower parts of the lower cylindrical section and the upper bowl-shaped section are positioned in the machine base, a blower communicated with the lower cylindrical section is arranged in the machine base, an aerosol particle supply mechanism capable of heating, mixing, regulating pressure and neutralizing static electricity of generated aerosol particles is arranged in the machine base, the output end of the aerosol particle supply mechanism is communicated with the glue inlet, a high-temperature standing box with the internal temperature of 67-73 ℃, a low-temperature standing box with the internal temperature of 27-33 ℃ below zero and a normal-temperature standing box with the internal temperature of normal temperature are arranged in the machine base, and a detection data processing system for calculating and displaying a detection result is arranged on the machine base;
the machine base is provided with an upper base body and a lower base body which are both in a hollow structure, the upper base body is vertically arranged at the rear part of the top surface of the lower base body, the upper part of the front side surface of the upper base body is convexly provided with a mounting seat which is arranged in a hanging manner and is in a hollow structure forwards, the distance between the mounting seat and the top surface of the lower base body is the testing space, the upper pressure plate is arranged below the mounting seat, the top surface of the upper pressure plate is fixedly locked with a mounting plate, a lifting cylinder which is vertically arranged and is arranged above the upper pressure plate is arranged in the mounting seat, the bottom surface of the mounting seat is provided with an extending hole for the piston rod of the lifting cylinder to extend downwards, the piston rod of the lifting cylinder is fixedly matched with the mounting plate, the top surface of the lower base body is provided with a control switch for controlling the lifting cylinder to work, and the front side wall of the upper base body is provided with a pipeline extending hole at the position of the upper pressure plate;
the front side of the lower seat body is provided with an opening door which is opened left and right respectively, the high-temperature standing box, the low-temperature standing box and the normal-temperature standing box are stacked in the lower seat body up and down, the air blower is positioned in the lower seat body, the output end of the air blower is vertically arranged upwards, the lower end of the lower cylindrical section is locked with a communicating pipe which is connected and communicated with the output end of the air blower, an inner funnel which is gradually reduced from top to bottom is arranged in the communicating pipe, a space is arranged between the inner funnel and the communicating pipe, the lower end of the inner funnel integrally extends to a bent pipe which extends towards the side wall of the communicating pipe, the side wall of the communicating pipe is provided with a circular through hole, the free end of the bent pipe is tightly sleeved in the circular through hole, the outer side wall of the lower seat body is provided with a recovery cylinder, one end of the recovery cylinder is communicated with the recovery cylinder, The other end of the recovery pipe is communicated with the circular through hole.
2. The mask filter test device of claim 1, wherein: the bottom surface of the mounting seat is an inclined surface which is inclined downwards from outside to inside, the bottom surface of the mounting seat is positioned at the upper pressure plate and is convexly provided with a mounting block body, the bottom surface and the front side surface of the mounting block body are in a plane, the mounting plate is horizontally arranged along the front-back direction, the bottom surface of the mounting seat is provided with a channel, one end of the channel extends to the front side of the bottom surface of the mounting block body, the other end of the channel extends to the lower part of the front side wall of the upper seat body, and the channel is communicated with the upper seat body and the mounting seat.
3. The mask filter test apparatus of claim 2, wherein: the hollow cavity of the mounting seat is communicated with the hollow cavity of the upper seat body, a vertical plate which is vertically arranged on the top surface of the lower seat body is fixedly arranged at the position of an upper pressure plate on the front side wall of the upper seat body, the upper end of the vertical plate extends into the mounting seat, a strip-shaped through hole which extends along the vertical direction is formed in the vertical plate, an inclined hole which is communicated with the strip-shaped through hole at one end and extends along the inclined direction of the bottom surface of the mounting seat is formed in the position of the bottom surface of the mounting seat opposite to the strip-shaped through hole, a transverse through hole which extends along the front-back direction and is communicated with the inclined hole at the rear end is formed in the bottom surface of the mounting block body, the transverse through hole, the inclined hole and the strip-shaped through hole form a channel, a mounting transverse plate is convexly arranged forwards at the top end of the vertical plate, and the lifting cylinder is arranged on the mounting transverse plate.
4. The mask filter test apparatus of claim 3, wherein: the bottom surface of the lower seat body is provided with a mounting hole at the position of the upper pressure plate, the lower seat body is stacked at the mounting hole and is provided with a placing plate, the rear side surface of the placing plate is forwardly concavely provided with an embedding hole for embedding the lower end part of the aligning plate, the rear side of the top surface of the placing plate is vertically provided with a fastening plate which is respectively attached and matched with the left side wall and the right side wall of the vertical plate and is locked together, the upper part of the upper bowl-shaped section is positioned in the embedding hole, and the upper end part of the upper bowl-shaped section is convexly provided with a limiting convex ring which penetrates out of the embedding hole and is stacked on the placing plate and is locked together with the placing plate.
5. The mask filter test device of claim 4, wherein: the round piece has been placed on above-mentioned spacing bulge loop, set up on the aforesaid go up the round piece with last bowl shape section communicating and along the oval-shaped hole that left right direction extends, the hole that the top surface of the aforesaid goes up the round piece lies in oval-shaped hole is equipped with the lantern ring bulge loop that supplies N95 gauze mask to overlap in outside along the department to the epirelief, it compresses tightly the round piece to stack on the aforesaid goes up the round piece, set up on the aforesaid compresses tightly the round piece and supply lantern ring bulge loop to imbed in the interior hole of stretching out.
6. The mask filter test device of claim 1, wherein: the high-temperature standing box, the low-temperature standing box and the normal-temperature standing box all comprise box bodies, openings are formed in the front side faces of the box bodies, the box bodies are internally provided with plates capable of being pulled out of the box bodies in an outward translation mode through the openings, the front side faces of the plates are flush with the front side faces of the box bodies, translation cylinders for controlling the plates to translate are arranged in the box bodies, and the translation cylinders are in control connection with the detection data processing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010665543.0A CN111929213B (en) | 2020-07-11 | 2020-07-11 | Gauze mask filters check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010665543.0A CN111929213B (en) | 2020-07-11 | 2020-07-11 | Gauze mask filters check out test set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111929213A CN111929213A (en) | 2020-11-13 |
| CN111929213B true CN111929213B (en) | 2022-08-23 |
Family
ID=73312375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010665543.0A Active CN111929213B (en) | 2020-07-11 | 2020-07-11 | Gauze mask filters check out test set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111929213B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418839B (en) * | 2021-06-22 | 2023-02-24 | 中建中新建设工程有限公司 | Raise dust monitoring devices |
| CN115372199B (en) * | 2022-10-27 | 2023-02-07 | 山东德瑞克仪器股份有限公司 | Infiltration testing arrangement of anti blood transmission pathogen gauze mask |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094779A (en) * | 1990-12-31 | 1992-03-10 | The United States Of America As Represented By The Secretary Of The Army | Method for measuring and testing the efficiency of gas mask filters using monodispersed aerosols |
| CN202837151U (en) * | 2012-09-27 | 2013-03-27 | 厦门高科防静电装备有限公司 | Automatic filter efficiency tester |
| KR20140146860A (en) * | 2013-06-18 | 2014-12-29 | (주)에이치시티 | Mask Filter Test System |
| CN106950159A (en) * | 2016-01-06 | 2017-07-14 | 华北电力大学（保定） | A kind of method and system for detecting mask filtration efficiency |
| CN209117537U (en) * | 2018-09-20 | 2019-07-16 | 苏州八九昱昊材料科技有限公司 | A kind of mask strainability tester |
| CN209167073U (en) * | 2018-11-27 | 2019-07-26 | 苏州苏信环境科技有限公司 | Mask testboard |
-
2020
- 2020-07-11 CN CN202010665543.0A patent/CN111929213B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094779A (en) * | 1990-12-31 | 1992-03-10 | The United States Of America As Represented By The Secretary Of The Army | Method for measuring and testing the efficiency of gas mask filters using monodispersed aerosols |
| CN202837151U (en) * | 2012-09-27 | 2013-03-27 | 厦门高科防静电装备有限公司 | Automatic filter efficiency tester |
| KR20140146860A (en) * | 2013-06-18 | 2014-12-29 | (주)에이치시티 | Mask Filter Test System |
| CN106950159A (en) * | 2016-01-06 | 2017-07-14 | 华北电力大学（保定） | A kind of method and system for detecting mask filtration efficiency |
| CN209117537U (en) * | 2018-09-20 | 2019-07-16 | 苏州八九昱昊材料科技有限公司 | A kind of mask strainability tester |
| CN209167073U (en) * | 2018-11-27 | 2019-07-26 | 苏州苏信环境科技有限公司 | Mask testboard |
Non-Patent Citations (1)
| Title |
|---|
| GK-1000自动过滤效率测试仪的研制;林国成;《中国职业安全健康协会2013年学术年会论文集》;20131231;第884-900页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111929213A (en) | 2020-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111929213B (en) | Gauze mask filters check out test set | |
| CN206804436U (en) | A kind of steel construction resistance to compression detection means | |
| CN202393573U (en) | Air-tightness detection device | |
| CN104382350B (en) | A kind of computer teaching device | |
| CN208654997U (en) | Fire alarm system based on BIM | |
| CN107570220B (en) | Cabin capable of forming low-pressure environment | |
| CN110501192A (en) | A kind of constant temperature, closed soil respiration collection device | |
| CN211365645U (en) | Nursing device is deposited to medicinal material | |
| CN205729385U (en) | X-ray DR physical examination device | |
| CN110231132A (en) | A kind of opto-electronic device metal shell sealing test device | |
| CN206215240U (en) | A kind of cabin that can form environment under low pressure | |
| CN205259064U (en) | Novel bridge detects device | |
| CN208188379U (en) | A kind of conventional six parameter monitoring equipments of atmosphere combined pollution observation | |
| CN207375472U (en) | A kind of yarn arranging apparatus | |
| CN209069905U (en) | A kind of pernicious gas detection auxiliary device automatically controlled for environmental protection equipment | |
| CN207087307U (en) | Air filter for automobile assemble mechanism | |
| CN205562108U (en) | A atmospheric pressure automatic checkout device for inflate house | |
| CN211668549U (en) | Mask fitting degree detection device | |
| CN209112501U (en) | A kind of laminator cabinet and laminator | |
| CN2357202Y (en) | Serial-type flexible gas-bag | |
| CN109765012B (en) | Airtight detection device controlled by single chip microcomputer | |
| CN211467615U (en) | Chinese-medicinal material rotary tablet press forming device | |
| CN206750188U (en) | A kind of rice sack-filling device | |
| CN209857873U (en) | Measuring device for house building engineering management | |
| CN209311226U (en) | A kind of test device of high pressure resistant aluminum substrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |