CN115372199A - Penetration testing device of anti-blood-borne pathogen mask - Google Patents
Penetration testing device of anti-blood-borne pathogen mask Download PDFInfo
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- CN115372199A CN115372199A CN202211325809.2A CN202211325809A CN115372199A CN 115372199 A CN115372199 A CN 115372199A CN 202211325809 A CN202211325809 A CN 202211325809A CN 115372199 A CN115372199 A CN 115372199A
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- 238000012360 testing method Methods 0.000 title claims abstract description 100
- 230000035515 penetration Effects 0.000 title claims abstract description 14
- 244000052769 pathogen Species 0.000 title description 3
- 230000001717 pathogenic effect Effects 0.000 title description 3
- 244000078885 bloodborne pathogen Species 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 40
- 238000001125 extrusion Methods 0.000 claims description 27
- 238000006073 displacement reaction Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 17
- 230000035699 permeability Effects 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000009530 blood pressure measurement Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
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- 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
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- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Dispersion Chemistry (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a penetration testing device of a mask for resisting blood-borne pathogens, which relates to the technical field of penetration testing of a multilayer structure.
Description
Technical Field
The invention relates to the technical field of multilayer structure penetration tests, in particular to a penetration test device for a mask for resisting blood-borne pathogens.
Background
The mask is widely applied to environments such as medical clinics, laboratories, operating rooms and the like, the protection of blood, body fluid and splash propagation is prevented in the invasive operation process, the safety coefficient is relatively high, the blocking capability on bacteria and viruses is strong, the mask is divided into an inner surface and an outer surface, the inner surface of the mask is a contact area, the outer surface of the mask is a non-contact area, when the mask is worn, the contact area is directly contacted with the mouth and the nose, the non-contact area is not contacted with the mouth and the nose, and the contact area is a relatively soft layer;
because a human body needs to breathe, when the human body often needs gas to pass through a non-contact area from a contact area, good gas permeability is needed, and when external harmful gas passes through the non-contact area and reaches the contact area, the good separation effect is achieved, bacteria, viruses, particles and the like can be separated, so that the permeability of the harmful gas is in a reasonable range, but the existing mask permeation test only observes the permeation of external liquid into the contact area of the mask in a mode of manually dropping solution, the permeability of the gas passing through the contact area of the mask cannot be detected, the test is single, the mask permeability cannot be comprehensively and automatically tested and evaluated, and when more masks need to be tested, the method for manually testing the mask permeability is low in efficiency and low in intelligence;
in view of the above technical drawbacks, a solution is proposed.
Disclosure of Invention
The invention aims to: after the mask is installed, the mask is in a sealed environment, the intelligent permeability detection function of the contact surface and the non-contact surface of the mask is realized through automatic overturning, lifting, extruding, fixing, stabilizing and testing the mask, and the quality of the mask is visually evaluated by a tester in a mode of directly generating a table according to the tested data, so that the device is simpler and more convenient to use, the double-sided permeability of the mask is detected, the test is more comprehensive and more specific, and the test result is more accurate;
in order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a penetration test device of anti blood transmission pathogen gauze mask, includes spherical test box, control panel and arc sealing door are installed to the outer end of spherical test box, control panel electric connection has start button and display screen, the fixed handle that is equipped with of outer end side of arc sealing door, control panel includes memory table module, curve detection module, treater and component execution module, the bottom mounting of spherical test box is equipped with spacing supporting box, be equipped with the hollow tube section in the spherical test box, and the both ends thread bush of hollow tube section is equipped with the lock sleeve, the detection gas port has all been seted up with the tip of hollow tube section to the lock sleeve, the lock sleeve passes through the detection gas port with the tip of hollow tube section, and the tip of hollow tube section and lock sleeve is the arc, and the both ends of lock sleeve run through the inner wall of lock sleeve respectively and extend to its outside, the outer end adaptation of hollow tube section is furnished with diversified drive assembly, the tip of hollow tube section is movable embedding respectively is equipped with pressure mouth sleeve and pressure sensing seal assembly, pressure sensing seal assembly installs in spacing supporting box, and the top of pressure mouth drive assembly installs in the top of spherical test box, the flexible connection hose connection has the flexible hose to keep away from the flexible hose connection of flexible test tube.
Furthermore, the multi-directional driving assembly is composed of a fixed sleeve ring, the fixed sleeve ring is fixedly sleeved at the center of the outer end of the hollow pipe barrel, the outer end of the fixed sleeve ring is symmetrically and fixedly connected with a co-operating rotating rod, the outer end of the co-operating rotating rod is rotatably sleeved with a lifting sleeve rod through a bearing, the lifting sleeve rod is perpendicular to the co-operating rotating rod, a fixed support plate is fixedly connected to the bottom end, away from the co-operating rotating rod, of the lifting sleeve rod, the fixed support plate is fixedly arranged in the spherical test box, the fixed support plate is perpendicular to the lifting sleeve rod, the co-operating rotating rod is slidably arranged in the spherical test box, one co-operating rotating rod rotates to penetrate through one lifting sleeve rod and is connected with a deflection motor, the deflection motor is fixedly mounted on the opposite side of the one lifting sleeve rod, and the output shaft of the deflection motor is fixedly connected with one end of the co-operating rotating rod.
Further, the pressure-sensitive sealing assembly comprises a pressure-sensitive cylinder sleeve, a pressure-sensitive floating block, a pressure-sensitive spring, a pressure sensor and a sealing sleeve ring, wherein the top end of the pressure-sensitive cylinder sleeve is fixedly arranged in the limiting supporting box, the top end of the pressure-sensitive cylinder sleeve is in through connection with the spherical testing box, the top end of the pressure-sensitive cylinder sleeve is fixedly penetrated through the outer wall of the spherical testing box and extends into the pressure-sensitive cylinder sleeve and movably abutted against the end part of the hollow pipe barrel, the pressure-sensitive floating block is slidably arranged in the pressure-sensitive cylinder sleeve, the pressure sensor is arranged at the bottom end of the inner cavity of the pressure-sensitive cylinder sleeve, the pressure-sensitive spring is arranged between the pressure sensor and the pressure-sensitive floating block, two ends of the pressure-sensitive spring are respectively and fixedly connected with the pressure sensor and the pressure-sensitive floating block, the sealing sleeve ring is fixedly arranged at the top end part of the pressure-sensitive cylinder sleeve, the inner end of the sealing sleeve ring is in a shape matched with the end part of the hollow pipe barrel, and the pressure-sensitive cylinder sleeve is in through connection with the hollow pipe barrel through the sealing sleeve ring.
Further, the lifting driving assembly comprises a power box, the power box is fixedly arranged at the top end of the spherical testing box, the power box is connected with the spherical testing box in a penetrating manner, a sliding plate is arranged in the power box in a sliding manner, the bottom center of the sliding plate is fixed to the top end of the pressure nozzle sleeve, one end, far away from the pressure nozzle sleeve, of the telescopic hose is fixedly arranged on the inner wall of the power box through a connecting pipe clamp, a lifting motor is fixedly arranged outside the power box, an output shaft of the lifting motor is fixedly connected with a driving rotating rod, one end of the driving rotating rod rotates to penetrate through the outer wall of the power box and extends to the interior of the power box, a first bevel gear is fixedly sleeved on the outer wall of the power box, the first bevel gear is symmetrically arranged in two positions, a second bevel gear is meshed with the first bevel gear, a limiting cylinder sleeve is connected with the second bevel gear, the second bevel gear is fixedly sleeved on the outer end of the limiting cylinder sleeve, the limiting cylinder sleeve is vertically arranged with the driving rotating rod, a lifting screw is sleeved on the internal thread of the limiting cylinder sleeve, the bottom end of the lifting screw is fixedly connected with the top surface of the sliding plate, limiting plate is rotatably connected to the two ends of the limiting cylinder sleeve through bearings, and the limiting plate is fixedly arranged in the power box and is arranged in parallel to the sliding plate.
Furthermore, sliding protrusions are fixedly arranged on two sides of the sliding plate, a sliding groove matched with the sliding protrusions to slide is formed in the power box, and the sliding protrusions are arranged in the sliding groove in a sliding mode.
Further, the gas pressure measurement assembly comprises a gas storage tube, a gas extrusion block, an electric gas rod and a displacement sensor, the electric gas rod is installed at the top end of the gas storage tube, the gas extrusion block is slidably arranged in the gas storage tube, the electric gas rod is fixedly connected with the center of the top surface of the gas extrusion block, and the displacement sensor is installed on the top surface of the gas extrusion block.
Further, the data processing process of the control panel is as follows:
the storage table module receives real-time displacement Qx1 output downwards by a gas extrusion block sensed by a displacement sensor of the gas pressure measurement component, real-time gas pressure rise value Qv1 sensed by a gas pressure sensor in a spherical test box and real-time pressure value rise Jv1 of gas sensed by the pressure sensor through a mask contact area, respectively stores the real-time gas pressure rise value Qv1 and the real-time pressure value rise value Jv1, constructs three first curve graphs according to time lines, and sends the generated first curve graphs to a display screen for display;
meanwhile, the curve graph detection module acquires a first curve graph in the table storage module, when the curve of the first curve graph is detected to be a straight line in a preset time range, a mask non-contact area test signal is generated, otherwise, no signal is generated;
and the generated testing signal of the non-contact area of the mask is sent to an element execution module through a processor,
after receiving a testing signal of a non-contact area of the mask, the element execution module immediately controls the gas pressure testing assembly to recycle gas, and in the process, the displacement sensor senses the upward return real-time displacement Qx2 of the gas extrusion block, the gas pressure sensor senses the real-time gas pressure reduction value Qv2 in the spherical testing box, and the pressure sensor senses the real-time pressure reduction value Jv2 of the gas passing through the non-contact area of the mask and sends the reduction value to the storage table module again for storage;
and storing a table module, respectively constructing three second curve graphs by using the obtained real-time displacement Qx2 of the upward return of the gas extrusion block, the real-time air pressure reduction value Qv2 in the spherical test box and the real-time pressure value reduction Jv2 of the gas passing through the non-contact area of the mask according to a time line, and sending the second curve graphs to a display screen for display.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
after the mask is installed, the mask is in a sealed environment, the intelligent permeability detection function of the contact surface and the non-contact surface of the mask is realized through automatic overturning, lifting, extruding, fixing, stabilizing and testing the mask, the quality of the mask is assisted to be visually evaluated by testers through a mode of directly generating a table by using tested data, the device is simpler and more convenient to use, the double-sided permeability of the mask is detected, the test is more comprehensive and more specific, the test result is more accurate, and the problems that the traditional equipment cannot perform double-sided test on a single mask simultaneously, the detection is single, and the permeability of the mask cannot be accurately and rapidly detected due to the fact that the traditional equipment adopts a mode of manually dropping solution are solved.
Drawings
FIG. 1 shows a front view of the present invention;
FIG. 2 shows an internal structural view of the present invention;
FIG. 3 illustrates an enlarged partial cross-sectional view at the pressure sensitive seal assembly;
FIG. 4 shows an enlarged partial cross-sectional view at the lift drive assembly;
FIG. 5 shows a partial enlarged view at A of FIG. 1;
FIG. 6 shows a flow chart of the present invention;
illustration of the drawings: 1. a spherical test box; 2. a limit support box; 3. a hollow tube barrel; 4. a locking sleeve; 5. a multi-directional driving assembly; 6. a pressure sensitive seal assembly; 7. a pressure nozzle sleeve; 8. a lift drive assembly; 9. a gas pressure sensing assembly; 10. a flexible hose; 11. a connecting conduit; 12. an air pressure sensor; 101. a control panel; 102. a start button; 103. a display screen; 104. an arc-shaped sealing door; 105. a grip; 501. a fixed collar; 502. a co-operating rotating rod; 503. a lifting sleeve rod; 504. a lifting cylinder; 505. fixing a support plate; 601. a pressure-sensitive cylinder liner; 602. a pressure-sensitive floating block; 603. a pressure-sensitive spring; 604. a pressure sensor; 605. a sealing collar; 801. a lifting motor; 802. an active rotating rod; 803. a first bevel gear; 804. a second bevel gear; 805. limiting the cylinder sleeve; 806. a lifting screw; 807. a slide plate; 808. sliding and protruding; 809. a power box; 810. a chute; 811. a limiting plate; 901. a gas storage tube; 902. a gas extrusion block; 903. an electric air rod; 904. and a displacement sensor.
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.
Example 1:
as shown in fig. 1-6, a penetration test device for a mask for resisting blood-borne pathogens, comprising a spherical test box 1, a limit support box 2 is fixedly arranged at the bottom end of the spherical test box 1, a hollow tube barrel 3 is arranged in the spherical test box 1, locking sleeves 4 are respectively sleeved at two end parts of the hollow tube barrel 3 through threads, detection air ports are respectively arranged at the end parts of the locking sleeves 4 and the hollow tube barrel 3, the end parts of the locking sleeves 4 and the hollow tube barrel 3 pass through the detection air ports, the end parts of the hollow tube barrel 3 and the locking sleeves 4 are both arc-shaped, two ends of the locking sleeves 4 respectively penetrate through the inner wall of the locking sleeves 4 and extend to the outside of the locking sleeves, mask covers are covered at the end parts of the hollow tube barrel 3 in the same direction, then the locking sleeves 4 are screwed at the end parts of the hollow tube barrel 3, so that the mask covers are fastened at the end parts of the hollow tube barrel 3, a multi-directional driving assembly 5 is adapted to the outer end of the hollow tube barrel 3, the multi-azimuth driving assembly 5 is used for driving the hollow pipe barrel 3 to ascend and descend and rotate at a fixed angle, the end part of the hollow pipe barrel 3 is respectively and movably embedded with a pressure nozzle sleeve 7 and a pressure sensing sealing assembly 6, the pressure sensing sealing assembly 6 is installed in the limiting supporting box 2, the pressure nozzle sleeve 7 is adaptive to a lifting driving assembly 8, the lifting driving assembly 8 is used for driving the pressure nozzle sleeve 7 to ascend and descend, the lifting driving assembly 8 is installed at the top end of the spherical testing box 1, the top end of the pressure nozzle sealing sleeve is connected with a telescopic hose 10 in a penetrating manner, one end, far away from the pressure nozzle sealing sleeve, of the telescopic hose 10 is connected with a connecting pipe 11 in a penetrating manner, one end, far away from the connecting pipe 11, of the connecting pipe 11 is connected with a gas pressure measuring assembly 9 in a penetrating manner, an air pressure sensor 12 is installed in the spherical inner testing box 1, and the air pressure sensor 12 is used for sensing the pressure value of the spherical testing box 1 in real time;
the outer end of the spherical testing box 1 is provided with a control panel 101 and an arc-shaped sealing door 104, the control panel 101 is electrically connected with a starting button 102 and a display screen 103, the starting button 102 is used for starting equipment to run, the display screen 103 is used for displaying a testing data result and the like, the arc-shaped sealing door 104 is closed to enable the equipment to be in a completely sealed state, a handle 105 is fixedly arranged on the outer end side of the arc-shaped sealing door 104, the arc-shaped sealing door 104 is opened by pulling the handle 105, a tested mask is taken out, and the control panel 101 comprises a table storage module, a curve diagram detection module, a processor and an element execution module;
the multi-azimuth driving assembly 5 is composed of a fixed lantern ring 501, the fixed lantern ring 501 is fixedly sleeved at the center of the outer end of the hollow pipe barrel 3, the outer end of the fixed lantern ring 501 is symmetrically and fixedly connected with a co-operating rotating rod 502, the outer end of the co-operating rotating rod 502 is rotatably sleeved with a lifting sleeve rod 503 through a bearing, the lifting sleeve rod 503 is perpendicular to the co-operating rotating rod 502, the bottom end of the lifting sleeve rod 503, which is far away from the co-operating rotating rod 502, is fixedly connected with a fixed support plate 505, the fixed support plate 505 is fixedly arranged on the spherical test box 1, the fixed support plate 505 is perpendicular to the lifting sleeve rod 503, the co-operating rotating rod 502 is slidably arranged in the spherical test box 1, one co-operating rotating rod 502 rotatably penetrates through one of the lifting sleeve rods 503 and is connected with a deflection motor, the deflection motor is fixedly arranged on the opposite side of one of the lifting sleeve rods 503, and the output shaft of the deflection motor is fixedly connected with one end of the co-operating rotating rod 502, wherein the deflection motor is not shown, and the spherical test box 1 is fixedly arranged in a limit box suitable for the deflection motor to slide;
the lifting cylinder 504 is started to work and the output shaft of the lifting cylinder is controlled to extend quantitatively, the output shaft of the lifting cylinder 504 drives the lifting sleeve rod 503 fixed with the lifting cylinder to move quantitatively upwards after extending quantitatively, the lifting sleeve rod 503 pushes the cooperative rotating rod 502 connected with the lifting cylinder through a bearing to move quantitatively upwards after moving quantitatively upwards, the cooperative rotating rod 502 drives the fixed sleeve ring 501 fixedly sleeved with the fixed sleeve ring to move quantitatively upwards after moving quantitatively upwards, the fixed sleeve ring 501 drives the hollow pipe barrel 3 fixedly sleeved at the center of the outer end of the hollow pipe barrel to move upwards after moving quantitatively upwards, and at the moment, the central point of the central axis of the hollow pipe barrel 3 is opposite to the spherical center of the spherical test box 1; the output shaft of the lifting cylinder 504 is controlled to return quantitatively, and the hollow pipe barrel 3 is returned through the transmission of the components, so that the lifting and returning work of the hollow pipe barrel 3 is controlled; the deflection motor is started to work and the output shaft of the deflection motor is controlled to rotate at a fixed angle, the output shaft of the deflection motor drives the cooperative rotating rod 502 fixed with the deflection motor to rotate at a fixed angle after rotating at a fixed angle, the cooperative rotating rod 502 drives the fixed lantern ring 501 fixed with the cooperative rotating rod to rotate at a fixed angle after rotating at a fixed angle, the fixed lantern ring 501 drives the hollow pipe barrel 3 fixedly sleeved with the fixed lantern ring to rotate at a fixed angle after rotating at a fixed angle, and the hollow pipe barrel 3 is controlled to rotate at 90 degrees, rotate at 180 degrees and reset to zero through controlling the angle of the output shaft of the deflection motor and transmission of the components; the multi-direction driving assembly 5 is controlled to realize multi-direction and multi-angle high-freedom-degree movement of the hollow pipe barrel 3, so that the device is more convenient to use in the later period and has more intelligent functions;
the pressure-sensitive sealing assembly 6 comprises a pressure-sensitive cylinder sleeve 601, a pressure-sensitive floating block 602, a pressure-sensitive spring 603, a pressure sensor 604 and a sealing sleeve ring 605, wherein the top end of the pressure-sensitive cylinder sleeve 601 is fixedly arranged in the limiting support box 2, the top end of the pressure-sensitive cylinder sleeve 601 is communicated with the spherical test box 1, the top end of the pressure-sensitive cylinder sleeve 601 fixedly penetrates through the outer wall of the spherical test box 1 to extend into the pressure-sensitive cylinder sleeve 601 and movably abut against the end part of the hollow pipe barrel 3, the pressure-sensitive floating block 602 is slidably arranged in the pressure-sensitive cylinder sleeve 601, the pressure sensor 604 is arranged at the bottom end of the inner cavity of the pressure-sensitive cylinder sleeve 601, the pressure-sensitive spring 603 is arranged between the pressure sensor 604 and the pressure-sensitive floating block 602, two ends of the pressure-sensitive spring 603 are fixedly connected with the pressure sensor 604 and the pressure-sensitive floating block 602 respectively, the sealing sleeve ring 605 is fixedly arranged at the top end part of the pressure-sensitive cylinder sleeve 601, part of the sealing sleeve ring 605 is fixedly arranged in the pressure-sensitive cylinder sleeve 601, the inner end part of the sealing sleeve 605 is in a shape matched with the end part of the hollow pipe barrel 3, the pressure-sensitive cylinder sleeve 601, the pressure-sensitive cylinder barrel is connected with the sealing sleeve barrel 601;
when the gas in the hollow pipe barrel 3 enters the inner cavity at the top of the pressure-sensitive cylinder sleeve 601 through the sealing sleeve 605, the gas pressure in the inner cavity at the top of the pressure-sensitive cylinder sleeve 601 gradually rises along with the increase of the gas, when the gas pressure in the inner cavity at the top of the pressure-sensitive cylinder sleeve is raised to a certain degree, high pressure can extrude the pressure-sensitive floating block 602 to move downwards along the inner wall of the pressure-sensitive cylinder sleeve 601, the pressure-sensitive floating block 602 can extrude the pressure-sensitive spring 603 to shrink after moving downwards along the inner wall of the pressure-sensitive cylinder sleeve 601, and the reverse acting force of the pressure-sensitive spring 603 after shrinking can act on the surface of the pressure sensor 604, so that the pressure sensor 604 can sense the real-time pressure of the gas passing through the hollow pipe barrel 3;
the lifting driving component 8 comprises a power box 809, the power box 809 is fixedly arranged at the top end of the spherical testing box 1, the power box 809 is communicated with the spherical testing box 1, a sliding plate 807 is arranged in the power box 809 in a sliding manner, sliding protrusions 808 are fixedly arranged at two sides of the sliding plate 807, the power box 809 is provided with a sliding chute 810 matched with the sliding protrusions 808 to slide, the sliding protrusions 808 are arranged in the sliding chute 810 in a sliding manner, the center of the bottom end of the sliding plate 807 is fixed with the top end of the pressure nozzle sleeve 7, one end of the flexible hose 10 far away from the pressure nozzle sleeve 7 is fixedly arranged on the inner wall of the power box 809 through a connecting pipe clamp, one end of the connecting pipe 11 far away from the gas pressure testing component 9 is fixedly connected to the connecting pipe clamp, the connecting pipe clamp is fixedly arranged on the inner wall of the power box 809 and used for preventing the device from gas leakage, a lifting motor 801 is fixedly arranged outside the power box 809, an output shaft of the lifting motor 801 is fixedly connected with a driving rotating rod 802, one end of the driving rotating rod 802 rotatably penetrates through the outer wall of the power box 809 to extend to the interior of the power box 809 and is fixedly sleeved with two first bevel gears 803, the first bevel gears 803 are symmetrically arranged, the first bevel gears 803 are meshed with two second bevel gears 804, the second bevel gears 804 are connected with limiting cylinder sleeves 805, the second bevel gears 804 are fixedly sleeved at the outer ends of the limiting cylinder sleeves 805, the limiting cylinder sleeves 805 are perpendicular to the driving rotating rod 802, lifting screws 806 are sleeved in the internal threads of the limiting cylinder sleeves 805, the bottom ends of the lifting screws 806 are fixedly connected with the top surface of the sliding plate 807, limiting plates 811 are rotatably connected to the outer parts of the two ends of the limiting cylinder sleeves 805 through bearings, the limiting plates 811 are fixedly arranged in the power box 809, and the limiting plates 811 are arranged in parallel to the sliding plate 807;
the lifting motor 801 is started to work and control the output shaft of the lifting motor to rotate in the forward direction, the output shaft of the lifting motor 801 rotates in the forward direction and then drives the driving rotating rod 802 fixed with the driving rotating rod to rotate in the forward direction, the driving rotating rod 802 rotates in the forward direction and then drives the two first bevel gears 803 which are fixedly sleeved with the driving rotating rod and symmetrically arranged with the driving rotating rod to rotate in the forward direction, the two first bevel gears 803 rotate in the forward direction and then drive the two second bevel gears 804 meshed with the driving rotating rod 804 to rotate in the forward direction, the two second bevel gears 804 rotate in the forward direction and then drive the two limiting cylinder sleeves 805 fixedly sleeved with the driving rotating rod to rotate in the forward direction, the two limiting cylinder sleeves 805 are driven to rotate in the forward direction through the two limiting cylinder sleeves 805, the two lifting screws 806 arranged in the thread sections with opposite rotation directions extend out of the limiting cylinder sleeves 805, the two lifting screws 806 uniformly transmit power to the sliding plate 807, the sliding plate 807 slides downwards along the inner wall of the power box 809 and drives the pressure nozzle sleeve 7 fixedly sleeved with the sliding plate to move downwards, the output shaft of the lifting motor 801 is controlled to rotate in the reverse direction, and the pressure nozzle 7 is driven by the components, so that the pressure nozzle 8 drives the lifting sleeve 8 to move upwards;
the gas pressure measuring assembly 9 is composed of a gas storage tube 901, a gas extrusion block 902, an electric gas rod 903 and a displacement sensor 904, wherein the electric gas rod 903 is installed at the top end of the gas storage tube 901, the gas extrusion block 902 is slidably arranged in the gas storage tube 901, the electric gas rod 903 is fixedly connected with the center of the top surface of the gas extrusion block 902, the displacement sensor 904 is installed on the top surface of the gas extrusion block 902, the electric gas rod 903 is started to work and drive the gas extrusion block 902 fixed with the electric gas rod to move downwards or upwards, when the gas extrusion block 902 moves downwards or upwards, gas stored in the gas storage tube 901 can be extruded or sucked back, and the displacement sensor 904 is installed on the top surface of the gas extrusion block 902 at the moment, so that the displacement of the gas extrusion block 902 during downward or upwards movement is sensed, and the pressure of the gas entering the spherical test box 1 can be known through the displacement of the gas extrusion block 902 during downward movement;
working principle, when in use: the mask is divided into an inner surface and an outer surface, the inner surface of the mask is a contact area, when the mask is worn, the contact area is directly contacted with the mouth and the nose, the outer surface of the mask is a non-contact area, the non-contact area is not contacted with the mouth and the nose, and the contact area is a relatively soft layer;
step one, opening an arc-shaped sealing door 104, driving a hollow pipe barrel 3 to rotate for 90 degrees by controlling a multi-azimuth driving assembly 5, enabling a central axis of the hollow pipe barrel 3 to be opposite to an arc center of the arc-shaped sealing door 104, then rotationally taking a locking sleeve 4 sleeved on one end part of the hollow pipe barrel 3, sleeving a mask contact area on the end part of the hollow pipe barrel 3, then rotationally locking the locking sleeve 4 again, indirectly controlling the hollow pipe barrel 3 to rotate for 180 degrees, rotationally taking the locking sleeve 4 sleeved on the other end part of the hollow pipe barrel 3 again, sleeving a mask non-contact area on the end part of the hollow pipe barrel 3, and then rotationally locking the locking sleeve 4 again, so that the mask is firmly locked and fixed on the end part of the hollow pipe barrel 3; the purpose is to arrange the two masks in the same direction;
step two, after the mask is locked and locked, indirectly controlling the hollow tube barrel 3 to rotate by 90 degrees again, enabling the mask non-contact area of the hollow tube barrel 3 to be sleeved on the end part of the hollow tube barrel 3 upwards, then indirectly controlling the hollow tube barrel 3 to descend and be inserted into the sealing lantern ring 605 of the pressure-sensitive cylinder sleeve 601, and simultaneously driving the pressure nozzle sleeve 7 to descend and abut against the mask contact area by controlling the lifting driving assembly 8, so that the hollow tube barrel 3 descends stably, and the end part of the hollow tube barrel 3 is tightly and firmly extruded into the sealing lantern ring 605;
step four, after the two end parts of the hollow tube 3 are respectively inserted into the pressure nozzle sleeve 7 and the pressure sensing tube sleeve 601 and locked, the gas pressure measurement component 9 is started to work, so that the gas in the gas pressure measurement component 9 enters the pressure nozzle sleeve 7 through the telescopic hose 10 and the connecting conduit 11, the displacement sensor 904 of the gas pressure measurement component 9 senses the real-time displacement Qx1 output downwards by the gas extrusion block 902 at this time, the gas in the pressure nozzle sleeve 7 enters the spherical test box 1, the gas pressure sensor 12 in the spherical test box 1 senses the real-time gas pressure rise value Qv1 in the spherical test box 1, when the gas pressure in the spherical test box 1 rises to a certain degree, the gas pressure in the spherical test box continues to rise, and part of the gas passes through the contact areas of the two masks and also passes through the hollow tube 3, and at this time, the pressure sensor 604 of the pressure sensing sealing component 6 senses the real-time pressure value rise Jv1 of the gas passing through the mask contact areas;
the generated real-time displacement Qx1 output downwards by the gas extrusion block 902, a real-time air pressure increase value Qv1 in the spherical test box 1 and a real-time pressure value increase Jv1 of gas passing through a mask contact area are sent to a storage table module for storage, three first curve graphs are constructed according to time lines, and the generated first curve graphs are sent to the display screen 103 for display;
meanwhile, the curve graph detection module acquires a first curve graph in the table storage module, when the curve of the first curve graph is detected to be a straight line in a preset time range, a mask non-contact area test signal is generated, otherwise, no signal is generated; and the generated testing signal of the non-contact area of the mask is sent to an element execution module through a processor,
step five, after the element execution module receives a testing signal of the mask non-contact area, the element execution module immediately controls the gas pressure testing assembly 9 to recycle gas, in the process, the displacement sensor 904 senses the upward return real-time displacement Qx2 of the gas extrusion block 902, the gas pressure sensor 12 senses the real-time gas pressure reduction value Qv2 in the spherical testing box 1, the pressure sensor 604 senses the real-time pressure reduction value Jv2 of the gas passing through the mask non-contact area and sends the real-time pressure reduction value Jv2 to the storage table module for storage, three second curve graphs are constructed according to time lines, and the second curve graphs are sent to the display screen 103 for display;
the quality of the mask can be directly obtained by quantitatively processing data stored in a storage table module through the first curve graph and the second curve graph, and a large amount of experience and test data need to be accumulated firstly;
by integrating the technical scheme, after the mask is installed, the mask is in a sealed environment, the intelligent permeability detection function of the contact surface and the non-contact surface of the mask is realized through automatic overturning, lifting, extruding, fixing, stabilizing and testing the mask, the quality of the mask is visually evaluated by an auxiliary tester in a mode of directly generating a table according to tested data, the device is simpler and more convenient to use, the double-sided permeability of the mask is detected, the test is more comprehensive and specific, the test result is more accurate, and the problems that the traditional equipment is complicated and cannot perform double-sided test on a single mask simultaneously, the detection is single, and the permeability of the mask cannot be accurately and quickly detected due to the fact that the traditional equipment adopts a mode of manually dropping solution are solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A penetration testing device of a mask for resisting blood-borne pathogens comprises a spherical testing box (1), wherein a control panel (101) and an arc-shaped sealing door (104) are installed at the outer end of the spherical testing box (1), the control panel (101) is electrically connected with a start button (102) and a display screen (103), a handle (105) is fixedly arranged on the outer end side of the arc-shaped sealing door (104), the control panel (101) comprises a storage table module, a curve diagram detection module, a processor and an element execution module, and is characterized in that a limiting support box (2) is fixedly arranged at the bottom end of the spherical testing box (1), a hollow pipe barrel (3) is arranged in the spherical testing box (1), locking sleeves (4) are sleeved at two end parts of the hollow pipe (3) in a threaded manner, detection air ports are formed in the end parts of the locking sleeves (4) and the hollow pipe barrel (3), the end parts of the locking sleeves (4) and the hollow pipe barrel (3) pass through the detection air ports, the end parts of the hollow pipe (3) and the hollow pipe barrel (3) are arc-shaped, and the inner walls of the two ends of the locking sleeves (4) respectively extend through the locking sleeves (4) to the outer wall of the hollow pipe (3), a movable pressing component (7) and a multi-direction pressing component (7) is arranged on the movable sleeve (3) and a movable sleeve) respectively, the pressure sensing sealing assembly (6) is installed in the limiting supporting box (2), the pressure nozzle sleeve (7) is adaptive to the lifting driving assembly (8), the lifting driving assembly (8) is installed at the top end of the spherical testing box (1), the top end of the pressure nozzle sealing sleeve is connected with the telescopic hose (10) in a penetrating mode, one end of the telescopic hose (10), far away from the pressure nozzle sealing sleeve, is connected with the connecting pipe (11) in a penetrating mode, one end of the connecting pipe (11), far away from the connecting pipe (11), is connected with the gas pressure testing assembly (9) in a penetrating mode, and the air pressure sensor (12) is installed in the spherical testing box (1).
2. The penetration testing device of the mask for resisting the blood-borne pathogens according to claim 1, wherein the multi-directional driving assembly (5) is composed of a fixed collar (501), the fixed collar (501) is fixedly sleeved at the center of the outer end of the hollow tube (3), the outer end of the fixed collar (501) is symmetrically and fixedly connected with a co-operating rotating rod (502), the outer end of the co-operating rotating rod (502) is rotatably sleeved with a lifting sleeve rod (503) through a bearing, the lifting sleeve rod (503) is vertically arranged with the co-operating rotating rod (502), the bottom end of the lifting sleeve rod (503) far away from the co-operating rotating rod (502) is fixedly connected with a fixed support plate (505), the fixed support plate (505) is fixedly arranged in the spherical testing box (1), the fixed support plate (505) is vertically arranged with the lifting sleeve rod (503), the co-operating rotating rod (502) is slidably arranged in the spherical testing box (1), one of the co-operating rotating rod (502) rotatably penetrates one of the lifting sleeve rod (503) and is connected with a deflection motor, and one end of the co-operating rotating rod (502) is connected with an output shaft of the deflection motor.
3. The penetration test device of a mask against blood-borne pathogens according to claim 2, it is characterized in that the pressure-sensitive sealing component (6) consists of a pressure-sensitive cylinder sleeve (601), a pressure-sensitive floating block (602), a pressure-sensitive spring (603), a pressure sensor (604) and a sealing lantern ring (605), the top end of the pressure-sensitive cylinder sleeve (601) is fixedly arranged in the limit supporting box (2), the top end of the pressure-sensitive cylinder sleeve (601) is communicated with the spherical test box (1), the top end of the pressure-sensitive cylinder sleeve (601) fixedly penetrates through the outer wall of the spherical test box (1) to extend into the spherical test box and movably abuts against the end part of the hollow pipe barrel (3), the pressure-sensitive floating block (602) is arranged in the pressure-sensitive cylinder sleeve (601) in a sliding manner, the pressure sensor (604) is arranged at the bottom end of the inner cavity of the pressure-sensitive cylinder sleeve (601), the pressure-sensitive spring (603) is arranged between the pressure sensor (604) and the pressure-sensitive floating block (602), and both ends of the pressure-sensitive spring (603) are respectively and fixedly connected with the pressure sensor (604) and the pressure-sensitive floating block (602), the sealing collar (605) is fixedly arranged at the top end part of the pressure-sensitive cylinder sleeve (601), and the local part of the sealing lantern ring (605) is fixedly arranged in the pressure-sensitive cylinder sleeve (601), the inner end of the sealing collar (605) is in a shape matched with the end of the hollow pipe barrel (3), the pressure-sensitive cylinder sleeve (601) is communicated with the hollow pipe barrel (3) through a sealing sleeve ring (605).
4. The penetration testing device for the mask resisting the blood-borne pathogens according to claim 3, wherein the lifting driving assembly (8) comprises a power box (809), the power box (809) is fixedly arranged at the top end of the spherical testing box (1), the power box (809) is in through connection with the spherical testing box (1), a sliding plate (807) is arranged in the power box (809) in a sliding manner, the center of the bottom end of the sliding plate (807) is fixed to the top end of the nozzle pressing sleeve (7), one end, far away from the nozzle pressing sleeve (7), of the flexible hose (10) is fixedly arranged on the inner wall of the power box (809) through a connecting pipe clamp, a lifting motor (801) is fixedly arranged outside the power box (809), an output shaft of the lifting motor (801) is fixedly connected with a driving rotating rod (802), one end of the driving rotating rod (802) rotatably penetrates through the outer wall of the power box (809) and extends to the inside of the power box (809) and is fixedly sleeved with a first bevel gear (803), two first bevel gears (803) are symmetrically arranged, the first bevel gears (803) are meshed with a gear (804), the second bevel gear (804), a limiting cylinder sleeve (805) is fixedly sleeved on the second bevel gear sleeve (805), a limiting cylinder sleeve (805), and a limiting cylinder sleeve (805) is arranged on the second bevel sleeve (805) perpendicular to the cylinder sleeve (805), the bottom of lifting screw (806) and the top surface fixed connection of slide (807), the both ends outside of spacing cylinder liner (805) is connected with limiting plate (811) through the bearing rotation, limiting plate (811) are fixed to be located in headstock (809), and limiting plate (811) and slide (807) parallel arrangement.
5. The penetration testing device of the mask for resisting the blood-borne pathogens according to claim 4, wherein sliding protrusions (808) are fixedly arranged on two sides of the sliding plate (807), the power box (809) is provided with a sliding groove (810) matched with the sliding protrusions (808) to slide, and the sliding protrusions (808) are slidably arranged in the sliding groove (810).
6. The penetration test device of the mask for resisting the blood-borne pathogens according to claim 4, wherein the gas pressure measuring component (9) is composed of a gas storage tube (901), a gas extrusion block (902), an electric gas rod (903) and a displacement sensor (904), the electric gas rod (903) is installed at the top end of the gas storage tube (901), the gas extrusion block (902) is slidably arranged in the gas storage tube (901), the electric gas rod (903) is fixedly connected with the center of the top surface of the gas extrusion block (902), and the displacement sensor (904) is installed on the top surface of the gas extrusion block (902).
7. The apparatus for testing the permeability of a mask against blood-borne pathogens according to claim 6, wherein the control panel (101) is programmed with the following data processing steps:
the storage table module receives real-time displacement Qx1 output downwards by a gas extrusion block (902) sensed by a displacement sensor (904) of a gas pressure measurement component (9), real-time gas pressure rise value Qv1 sensed by a gas pressure sensor (12) in a spherical test box (1) and real-time pressure value increase Jv1 sensed by a pressure sensor (604) when gas passes through a mask contact area, the real-time pressure value increase value is stored respectively and is constructed into three first curve graphs according to time lines, and the generated first curve graphs are sent to a display screen (103) for display;
meanwhile, the curve diagram detection module acquires a first curve diagram in the table storage module, when the curve diagram of the first curve diagram is detected to be a straight line in a preset time range, a mask non-contact area test signal is generated, otherwise, no signal is generated;
and the generated testing signal of the non-contact area of the mask is sent to an element execution module through a processor,
after receiving a testing signal of a non-contact area of the mask, the element execution module immediately controls the gas pressure testing assembly (9) to recycle gas, in the process, the displacement sensor (904) senses the upward return real-time displacement Qx2 of the gas extrusion block (902), the gas pressure sensor (12) senses the real-time gas pressure reduction value Qv2 in the spherical testing box (1), and the pressure sensor (604) senses the real-time pressure value reduction Jv2 of the gas passing through the non-contact area of the mask and sends the real-time pressure value reduction value Jv2 to the storage table module again for storage;
and storing a table module, respectively constructing three second curve graphs by using the obtained real-time displacement Qx2 of the upward return of the gas extrusion block (902), the real-time air pressure reduction value Qv2 in the spherical test box (1) and the real-time pressure value reduction Jv2 of the gas passing through the non-contact area of the mask according to a time line, and sending the second curve graphs to a display screen (103) for displaying.
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| CN202211325809.2A CN115372199B (en) | 2022-10-27 | 2022-10-27 | Infiltration testing arrangement of anti blood transmission pathogen gauze mask |
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