A nanofiber membrane air permeability experimental device

Abstract

The present invention relates to the field of nanofiber membrane detection technology, and in particular to a nanofiber membrane breathable experimental equipment, comprising an air intake structure, an air supply structure, an air outlet structure, a material discharge structure and a detection structure, wherein the inside of a ring disk and the inside of a bottom end of a carrier disk are threadedly assembled through external studs, at which time an air intake pipe is slidably inserted with an inner wall of a first silicone ring, and the inside of a sleeve ring and the inside of a top end of a carrier disk are threadedly assembled through external studs, at which time an air outlet pipe is slidably inserted with an inner wall of a second silicone ring, and the inside of a pad and the inside of a first threaded tube are threadedly assembled through external studs, at which time the outer side of a connecting tube is slidably inserted with an inner wall of a second rubber ring, and a plug-in that is slidably inserted inside a bar is manually pulled out, and the bar bar is slidably placed in an inner groove opened at the top of the bar, and then the plug-in is slidably inserted with the inside of the bar bar and the inclined hole inside the bar bar. The present invention makes the device body easy to disassemble, assemble and combine through the above-mentioned arrangement.

Description

Technical Field

[0001] The invention relates to the technical field of nanofiber membrane detection, in particular to a nanofiber membrane air permeability experimental device. Background Art

[0002] Nanofiber membrane is a nanofiber film prepared by high-voltage electrospinning process. It is environmentally friendly and degradable, with a microscopic network structure of "microfiber nodes". The minimum pore size formed by this network structure is 0.2μm, and the number of micropores per square centimeter is as high as billions. The diameter of the micropore is one hundredth of the smallest water droplet diameter (about 20μm), and it is a thousand times larger than a water molecule. Due to the existence of surface tension, it can block the passage of liquid water or solid particles, while allowing air or water vapor to pass through. Clothing materials can be formed by fluorine-free treatment of the nanofiber membrane. Taking the fluorine-free nanofiber membrane used in clothing production as an example, after the processing and production of the fluorine-free nanofiber membrane, the sample permeability needs to be tested in batches using nanofiber membrane breathable experimental equipment.

[0003] Some nanofiber membrane breathable experimental equipment have poor silencing and noise reduction effects on the suction and exhaust parts of the air pump device inside the device. At the same time, the device body is not convenient for disassembly and assembly, and it is not convenient to replace the nanofiber membrane body, and the air permeability of the nanofiber membrane body cannot be intuitively displayed. Therefore, a nanofiber membrane breathable experimental equipment is proposed to address the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a nanofiber membrane breathable experimental equipment to solve the problem that some nanofiber membrane breathable experimental equipment has poor silencing and noise reduction effect on the suction and exhaust parts of the air pump device inside the device, and the device body is not easy to disassemble and assemble, and it is not easy to replace the nanofiber membrane body, and the air permeability of the nanofiber membrane body cannot be intuitively displayed.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A nanofiber membrane air permeability experimental equipment, comprising an air intake structure, an air supply structure, an air outlet structure, a discharge structure and a detection structure, wherein the air intake structure is provided with an air supply structure on the top, the air supply structure is provided with an air outlet structure on the top, the air outlet structure is provided with a discharge structure on the top, and the detection structure is provided on the top of the discharge structure, the air intake structure comprises a ring disk, a slot box and a first silencer structure, the inner wall of the ring disk is fixedly provided with a slot box, the inside of the slot box is provided with a first silencer structure, the air supply structure comprises a carrier plate, a soft pad, a bottom pad, a first rubber ring, an air pump device, an air intake pipe and an air outlet pipe, the top of the carrier plate is fixedly provided with a soft pad, the inner wall of the soft pad and the top of the carrier plate are fixedly provided with a bottom pad, the inside of the carrier plate is fixedly provided with a first rubber ring, The inner wall of the soft cushion and the top of the bottom cushion are fixedly provided with an air pump device, the bottom end of the air pump device is fixedly connected with an air inlet pipe, the air inlet pipe is located inside the first rubber ring, the top of the air pump device is fixedly connected with an air outlet pipe, the air outlet structure comprises a collar, a cone disk, a bar, a plug-in, a ring plate, an inner disk, a fiber pad, a vertical rod, a ring disk, a connecting tube, a first threaded tube, a resin fiber layer and a second silencer structure, a cone disk is fixedly provided on the inner side of the collar, a bar is fixedly provided on the top of the inclined surface of the cone disk, a plug-in is obliquely inserted inside the bar, a ring plate is fixedly provided between the inner wall of the cone disk and the outer wall of the inner disk, a fiber pad is fixedly provided between the inner wall of the cone disk, the top of the ring plate and the top of the inner disk, a vertical rod is fixedly provided at the bottom of the inner wall of the inner disk, and the bottom end of the vertical rod A ring disk is fixedly arranged, a connecting tube is fixedly arranged at the center position of the top of the cone disk, two first threaded tubes are fixedly arranged symmetrically in the left and right directions on the top of the cone disk, resin fiber layers are fixedly arranged inside the connecting tube, inside the top of the cone disk and on the top of the fiber pad, a second silencer structure is arranged between the inside of the inner disk and the inside of the fiber pad, the discharge structure comprises a pad, a vertical tube, a cavity shell, a square box, an air film sheet, a rubber strip, a hard rubber frame, a nanofiber membrane body, a sheet plate, a lower buckle plate, a second rubber ring, an electrically controlled pressure relief valve, an upper buckle plate and a sliding part, a vertical tube is fixedly arranged on the top of the pad, the top of the vertical tube is fixedly connected to the cavity shell, the top of the cavity shell is fixedly connected to the square box, the top of the square box is fixedly arranged with an air film sheet, and the inner wall of the square box has a A rubber strip is fixedly arranged on the inner wall of the slide groove, the hard rubber frame and the rubber strip are slidably arranged, a nanofiber membrane body is fixedly arranged on the inner wall of the hard rubber frame, a sheet is fixedly arranged on the front end of the hard rubber frame, a lower buckle plate is fixedly arranged on the front end of the sheet plate, a second rubber ring is fixedly arranged on the inner wall of the vertical cylinder, an electrically controlled pressure relief valve is fixedly connected to the rear end of the square box, an upper buckle plate is fixedly arranged on the front end of the square box, and sliding parts are slidably inserted inside the upper buckle plate and the lower buckle plate. The detection structure includes an upper plate, a second threaded cylinder, a positioning cylinder, a pressure plate, a column block, a cylinder rack, a pressure sensor, a rod and an inclined hole, a second threaded cylinder is fixedly arranged on the left side of the top of the upper plate, a positioning cylinder is fixedly arranged on the right side of the top of the upper plate, and a pressure plate is arranged on the top of the upper plate.A column block is fixedly arranged on the right side of the bottom of the pressure plate, a cylinder rack is fixedly arranged on the inner wall of the pressure plate, a pressure sensor is fixedly arranged inside the bottom end of the cylinder rack, rods are symmetrically fixedly arranged on the left and right sides of the bottom of the upper plate, an inclined hole is opened inside the rods, the inside of the pressure plate and the inside of the second threaded cylinder are assembled by external stud threads, the column block is inserted and slidably arranged inside the positioning cylinder, the inside of the upper plate and the cylinder rack are slidably arranged, the first silencer structure includes a first cylinder, a first silicone ring, a first straight tube, a first clamping cylinder, a first sponge pad and a first foam metal layer, the first silicone ring is fixedly arranged on the inner wall of the first cylinder, the bottom end of the first cylinder is fixedly connected with a first straight tube, the left and right ends of the first straight tube are symmetrically fixed with first clamping cylinders. The first cartridge has a first sponge pad fixedly disposed on the inner wall of the first cartridge, a first foam metal layer is fixedly disposed inside the first sponge pad and on the inner wall of the first cartridge, the first cartridge is fixedly disposed inside the slot box, the second muffler structure comprises a second cylinder, a second silicone ring, a second straight tube, a second cartridge, a second sponge pad and a second foam metal layer, a second silicone ring is fixedly disposed on the inner wall of the second cylinder, a second straight tube is fixedly connected to the top of the second cylinder, a second cartridge is symmetrically fixedly disposed on the left and right ends of the second straight tube, a second sponge pad is fixedly disposed on the inner wall of the second cartridge, a second foam metal layer is fixedly disposed inside the second sponge pad and on the inner wall of the second cartridge, the second cartridge is fixedly disposed inside the inner disk and inside the fiber pad. ,

[0007] Preferably, when the air intake structure, air supply structure and air outlet structure are combined and assembled, the interior of the ring disk and the interior of the bottom end of the carrier disk are assembled and arranged by external stud threads, the air intake pipe is slidably inserted into the inner wall of the first silicone ring, the interior of the sleeve ring and the interior of the top end of the carrier disk are assembled and arranged by external stud threads, the air outlet pipe is slidably inserted into the inner wall of the second silicone ring, three circular grooves are opened on the top of the carrier disk, and three rubber strips are fixedly arranged on the bottom of the cone disk, the bottom of the inner disk and the bottom of the ring disk, respectively, and the three circular grooves opened on the top of the carrier disk are respectively embedded with the three rubber strips.

[0008] Preferably, when the air outlet structure, the material discharge structure and the detection structure are combined and assembled, the interior of the pad and the interior of the first threaded tube are assembled and arranged through external stud threads, the outer side of the connecting tube is slidably inserted and arranged with the inner wall of the second rubber ring, the inner groove opened on the top of the bar is inserted and slidably arranged with the bar, and the plug-in is inserted and slidably arranged with the interior of the bar and the inclined hole inside the bar.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. In the present invention, the inside of the ring disk and the inside of the bottom of the carrier disk are threadedly assembled by the external studs, at which time the air inlet pipe is slidably inserted with the inner wall of the first silicone ring, and the inside of the sleeve ring and the inside of the top of the carrier disk are threadedly assembled by the external studs, and at this time the air outlet pipe is slidably inserted with the inner wall of the second silicone ring, wherein three annular grooves are opened on the top of the carrier disk, and three rubber strips are fixedly arranged on the bottom of the cone disk, the bottom of the inner disk and the bottom of the ring disk, respectively. The three annular grooves opened on the top of the carrier disk are respectively embedded with the three rubber strips, and the inside of the pad disk and the inside of the first threaded tube are threadedly assembled by the external studs. At this time, the outer side of the connecting tube is slidably inserted with the inner wall of the pad disk and the inner wall of the second rubber ring, and the plug-in inserted in the sliding insertion of the rod is manually pulled out, and the rod strip is inserted and slidably placed in the inner groove opened on the top of the rod, and then the plug-in is inserted and slid with the inside of the rod and the inclined hole inside the rod. Through the above arrangement, the device body is easy to disassemble and assemble;

[0011] 2. In the present invention, the first foam metal layer of the first silencer structure is used to inhale the external air in a noise-reducing manner, the first sponge pad filled between the first cartridge and the first foam metal layer plays a certain role in buffering and silencing, the air outlet pipe is connected with the second straight pipe and the second foam metal layer, the internal air is discharged in a noise-reducing manner through the second foam metal layer of the second silencer structure, the second sponge pad filled between the second cartridge and the second foam metal layer plays a certain role in buffering and silencing, and then the air enters the fiber pad of the porous flexible material and the resin fiber layer for subsequent circulation and noise reduction. Through the above arrangement, the suction and exhaust parts of the air pump device inside the device can be well silenced and silenced;

[0012] 3. In the present invention, the sliding piece is manually pulled upward, and the lower buckle plate is manually pressed and pulled forward. At this time, the hard rubber frame and the rubber strip are inserted and slide forward, and the hard rubber frame, the nanofiber membrane body, the sheet plate and the lower buckle plate are pulled out as a whole, which can be quickly replaced and convenient for sliding reset. The air enters the vertical cylinder, the cavity shell and the square box through the connecting cylinder, and the bottom air passes through the inside of the nanofiber membrane body, so that the air pressure inside the square box between the air film sheet and the nanofiber membrane body increases, and the air film sheet bulges upward. The bulging rate of the air film sheet seen by the eyes can intuitively display the air permeability of the nanofiber membrane body. After the test of a single nanofiber membrane body is completed, the passage of the electrically controlled pressure relief valve is opened, and the air inside the square box between the air film sheet and the nanofiber membrane body is connected to the outside, so that the air film sheet is reset. Through the above arrangement, the nanofiber membrane body is easy to slide and replace, and the air permeability of the nanofiber membrane body can be intuitively displayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall split structure of the present invention;

[0014] Figure 2It is a schematic diagram of the installation positions of the gas outlet structure, the material discharge structure and the detection structure of the present invention;

[0015] Figure 3 It is a cross-sectional schematic diagram of some components of the air intake structure of the present invention;

[0016] Figure 4 is a schematic cross-sectional view of components of the first sound-absorbing structure of the present invention;

[0017] Figure 5 It is a schematic diagram of the right half of the structure of the first muffler structure of the present invention;

[0018] Figure 6 It is a schematic structural diagram of the middle part of the first sound-absorbing structure of the present invention;

[0019] Figure 7 It is a cross-sectional schematic diagram of some components of the air supply structure of the present invention;

[0020] Figure 8 For the present invention Figure 7 Schematic diagram of the upper and lower splitting of the central air supply structure;

[0021] Fig. 9 For the present invention Figure 8 A schematic diagram of the structure at A;

[0022] Fig.10 It is a cross-sectional schematic diagram of some components of the air outlet structure of the present invention;

[0023] Fig.11 It is a schematic diagram of the position structure of the second sound-absorbing structure of the present invention;

[0024] Fig.12 For the present invention Fig.11 Schematic diagram of the structure at B;

[0025] Fig.13 For the present invention Fig.11 Schematic diagram of the structure at C;

[0026] Fig.14 is a cross-sectional schematic diagram of a second sound-absorbing structure of the present invention;

[0027] Fig.15 It is a cross-sectional schematic diagram of some components of the discharge structure of the present invention;

[0028] Fig.16 For the present invention Fig.15 Schematic diagram of the structure at D;

[0029] Fig.17 This is a schematic diagram of the distribution position structure of the nanofiber membrane of the present invention;

[0030] Fig.18 It is a schematic diagram of the cross-section installation position of the nanofiber membrane of the present invention;

[0031] Fig.19 For the present invention Fig.18 Schematic diagram of the structure at E;

[0032] Fig. 20 For the present invention Fig.18 Schematic diagram of the structure at F;

[0033] Fig.21 It is a cross-sectional schematic diagram of some components of the detection structure of the present invention;

[0034] Fig. 22 For the present invention Fig.21 Schematic diagram of the structure at G;

[0035] Fig.23 It is a cross-sectional installation schematic diagram of the main structure of the present invention;

[0036] Fig.24 For the present invention Fig.23 Schematic diagram of the structure at H;

[0037] Fig.25 For the present invention Fig.23 A schematic diagram of the structure at location I;

[0038] Fig.26 For the present invention Fig.23 Schematic diagram of the structure at J;

[0039] Fig. 27 It is a schematic diagram of the installation structure of the air intake pipe and the first muffler structure of the present invention;

[0040] Fig.28 It is a schematic diagram of the installation structure of the air outlet pipe and the second muffler structure of the present invention;

[0041] Fig.29 It is a front structural schematic diagram of the present invention.

[0042] In the figure: 1, air intake structure; 11, ring plate; 12, slot box; 13, first muffler structure; 131, first cylinder; 132, first silicone ring; 133, first straight pipe; 134, first cartridge; 135, first sponge pad; 136, first foam metal layer; 2, air supply structure; 21, carrier plate; 22, soft pad; 23, bottom pad; 24, first rubber ring; 25, air pump device; 26, air intake pipe; 27, air outlet pipe; 3, air outlet structure; 301, sleeve ring; 302, cone plate; 303, bar; 304, plug-in; 305, ring plate; 306, inner plate; 307, fiber pad; 308, vertical rod; 309, ring plate; 310, connecting tube; 311, first threaded tube; 312, resin fiber layer; 313, second muffler structure ; 3131, second cylinder; 3132, second silicone ring; 3133, second straight tube; 3134, second cartridge; 3135, second sponge pad; 3136, second foam metal layer; 4, discharge structure; 401, pad; 402, vertical cylinder; 403, cavity shell; 404, square box; 405, air film sheet; 406, rubber strip; 407, hard rubber frame; 408, nanofiber membrane body; 409, sheet; 410, lower buckle plate; 411, second rubber ring; 412, electric pressure relief valve; 413, upper buckle plate; 414, slide; 5, detection structure; 51, upper plate; 52, second threaded cylinder; 53, positioning cylinder; 54, pressure plate; 55, column block; 56, cylinder rack; 57, pressure sensor; 58, rod; 59, inclined hole. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the embodiments of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Similarly, similar words such as "one", "an", or "the" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Similar words such as "include" or "comprises" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0045] In addition, in the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] See also Figure 1-29 , the present invention provides a technical solution:

[0047] A nanofiber membrane air permeability experimental device, comprising an air intake structure 1, an air supply structure 2, an air outlet structure 3, a discharge structure 4 and a detection structure 5, the air intake structure 1 is provided with an air supply structure 2 on the top, the air supply structure 2 is provided with an air outlet structure 3 on the top, the air outlet structure 3 is provided with a discharge structure 4 on the top, the discharge structure 4 is provided with a detection structure 5 on the top, the air intake structure 1 comprises a ring disk 11, a slot box 12 and a first muffler structure 13, the inner wall of the ring disk 11 is fixedly provided with the slot box 12, the inside of the slot box 12 is provided with the first muffler structure 13, the air supply structure 2 comprises a carrier plate 21, a soft pad 22, a bottom pad 23, a first rubber ring 24, an air pump device 25, an air intake pipe 26 and an air outlet pipe 27, the top of the carrier plate 21 is fixedly provided with a soft pad 22, the inner wall of the soft pad 22 is provided with a first rubber ring 24, an air pump device 25, an air intake pipe 26 and an air outlet pipe 27, the top of the carrier plate 21 is fixedly provided with a soft pad 22, and the inner wall of the soft pad 22 is provided with a first rubber ring 24, an air pump device 25, an air intake pipe 26 and an air outlet pipe 27 The bottom pad 23 is fixedly arranged on the top of the carrier plate 21, the first rubber ring 24 is fixedly arranged inside the carrier plate 21, the inner wall of the soft pad 22 and the top of the bottom pad 23 are fixedly arranged with an air pump device 25, the bottom end of the air pump device 25 is fixedly connected with an air inlet pipe 26, the air inlet pipe 26 is located inside the first rubber ring 24, the top of the air pump device 25 is fixedly connected with an air outlet pipe 27, the air outlet structure 3 includes a collar 301, a cone disk 302, a bar 303, a plug 304, a ring plate 305, an inner disk 306, a fiber pad 307, a vertical rod 308, a ring disk 309, a connecting tube 310, a first threaded tube 311, a resin fiber layer 312 and a second silencer structure 313, the inner side of the collar 301 is fixedly provided with a cone disk 302, and the top of the inclined surface of the cone disk 302 is fixed A bar 303 is provided, and an insert 304 is obliquely inserted inside the bar 303; a ring plate 305 is fixedly provided between the inner wall of the cone disk 302 and the outer wall of the inner disk 306; a fiber mat 307 is fixedly provided between the inner wall of the cone disk 302, the top of the ring plate 305 and the top of the inner disk 306; a vertical rod 308 is fixedly provided at the bottom of the inner wall of the inner disk 306, and a ring disk 309 is fixedly provided at the bottom of the vertical rod 308; a connecting tube 310 is fixedly provided at the center position of the top of the cone disk 302; two first threaded tubes 311 are fixedly provided symmetrically in the left and right directions on the top of the cone disk 302; a resin fiber layer 312 is fixedly provided inside the connecting tube 310, inside the top of the cone disk 302 and on the top of the fiber mat 307; A second silencer structure 313 is arranged between them, and the discharge structure 4 includes a pad 401, a vertical cylinder 402, a cavity shell 403, a square box 404, an air film sheet 405, a rubber strip 406, a hard rubber frame 407, a nanofiber membrane body 408, a sheet 409, a lower buckle plate 410, a second rubber ring 411, an electrically controlled pressure relief valve 412, an upper buckle plate 413 and a slide 414. The top of the pad 401 is fixedly provided with a vertical cylinder 402, the top of the vertical cylinder 402 is fixedly connected to the cavity shell 403, the top of the cavity shell 403 is fixedly connected to the square box 404, the top of the square box 404 is fixedly provided with an air film sheet 405, the inner wall of the slide groove opened on the inner wall of the square box 404 is fixedly provided with a rubber strip 406, and the hard rubber frame 407 is slidably provided with the rubber strip 406.A nanofiber membrane body 408 is fixedly arranged on the inner wall of the hard rubber frame 407, a sheet 409 is fixedly arranged on the front end of the hard rubber frame 407, a lower buckle plate 410 is fixedly arranged on the front end of the sheet 409, a second rubber ring 411 is fixedly arranged on the inner wall of the vertical cylinder 402, an electrically controlled pressure relief valve 412 is fixedly connected to the rear end of the square box 404, an upper buckle plate 413 is fixedly arranged on the front end of the square box 404, a slide 414 is slidably inserted inside the upper buckle plate 413 and inside the lower buckle plate 410, and the detection structure 5 includes an upper plate 51, a second threaded cylinder 52, a positioning cylinder 53, a pressure plate 54, a column block 55, a cylinder frame 56, a pressure sensor 57, a rod 58 and an inclined hole 59, and a second threaded cylinder 52 is fixedly arranged on the left side of the top of the upper plate 51 A positioning cylinder 53 is fixedly arranged on the right side of the top of the upper plate 51, a pressure plate 54 is arranged on the top of the upper plate 51, a column block 55 is fixedly arranged on the right side of the bottom of the pressure plate 54, a cylinder frame 56 is fixedly arranged on the inner wall of the pressure plate 54, and a pressure sensor 57 is fixedly arranged inside the bottom end of the cylinder frame 56, and rods 58 are symmetrically fixedly arranged on the left and right sides of the bottom of the upper plate 51, and an inclined hole 59 is opened inside the rod 58. The inside of the pressure plate 54 and the inside of the second threaded cylinder 52 are assembled by external studs, and the column block 55 is inserted and slidably arranged inside the positioning cylinder 53, and the inside of the upper plate 51 and the cylinder frame 56 are slidably arranged. The first silencer structure 13 includes a first cylinder 131, a first silicone ring 132, a first straight tube 133, a first cartridge 134, a first sponge pad 135, and a first sound-absorbing structure 13. and a first foam metal layer 136, a first silicone ring 132 is fixedly arranged on the inner wall of the first cylinder 131, a first straight tube 133 is fixedly connected to the bottom end of the first cylinder 131, a first cartridge 134 is symmetrically fixedly arranged on the left and right ends of the first straight tube 133, a first sponge pad 135 is fixedly arranged on the inner wall of the first cartridge 134, a first foam metal layer 136 is fixedly arranged inside the first sponge pad 135 and on the inner wall of the first cartridge 134, the first cartridge 134 is fixedly arranged inside the tank box 12, and the first silencer structure 13 for silencing and reducing noise of the intake part of the intake pipe 26 is formed through the above arrangement, and the second silencer structure 313 includes a second cylinder 3131, a second silicone ring 3132, a second straight tube 3133, and a second The cartridge 3134, the second sponge pad 3135 and the second foam metal layer 3136, the second silicone ring 3132 is fixedly arranged on the inner wall of the second cylinder 3131, the second straight tube 3133 is fixedly connected to the top of the second cylinder 3131, the second cartridge 3134 is symmetrically fixedly arranged on the left and right ends of the second straight tube 3133, the second sponge pad 3135 is fixedly arranged on the inner wall of the second cartridge 3134, the second foam metal layer 3136 is fixedly arranged inside the second sponge pad 3135 and the inner wall of the second cartridge 3134, the second cartridge 3134 is fixedly arranged inside the inner disk 306 and the fiber pad 307, and through the above arrangement, a second silencing structure 313 for silencing and reducing noise of the outlet part of the outlet pipe 27 is formed.

[0048] When the air intake structure 1, the air supply structure 2 and the air outlet structure 3 are combined and assembled, the inside of the ring disk 11 and the inside of the bottom end of the carrier disk 21 are assembled and arranged by external stud threads, the air intake pipe 26 is slidably inserted into the inner wall of the first silicone ring 132, the inside of the ring 301 and the inside of the top end of the carrier disk 21 are assembled and arranged by external stud threads, the air outlet pipe 27 is slidably inserted into the inner wall of the second silicone ring 3132, three annular grooves are opened on the top of the carrier disk 21, and three rubber strips are fixedly arranged on the bottom of the cone disk 302, the bottom of the inner disk 306 and the bottom of the ring disk 309 respectively, and the three annular grooves opened on the top of the carrier disk 21 are respectively embedded and placed with the three rubber strips. Through the above arrangement, it is convenient to combine and assemble the air intake structure 1, the air supply structure 2 and the air outlet structure 3.

[0049] When the air outlet structure 3, the material discharge structure 4 and the detection structure 5 are combined and assembled, the interior of the pad 401 and the interior of the first threaded tube 311 are assembled and arranged through external stud threads, the outer side of the connecting tube 310 is slidably inserted and arranged with the inner wall of the second rubber ring 411, the inner groove opened at the top of the bar 303 is inserted and slidably arranged with the bar 58, and the plug-in 304 is inserted and slidably arranged with the inclined hole 59 inside the bar 303 and the bar 58. Through the above arrangement, it is convenient to combine and assemble the air outlet structure 3, the material discharge structure 4 and the detection structure 5.

[0050] Working process: The present invention provides a nanofiber membrane breathable experimental equipment, which can effectively reduce the noise of the suction and exhaust parts of the air pump device 25 inside the device. At the same time, the device body is easy to disassemble and assemble, and the nanofiber membrane body 408 can be easily replaced by sliding, and the air permeability of the nanofiber membrane body 408 can be intuitively displayed.

[0051] The parameter setting and parameter display of the air pump device 25, the electric pressure relief valve 412 and the pressure sensor 57 provided in the device are all controlled and processed by an external PLC display controller, and the air pump device 25, the electric pressure relief valve 412 and the pressure sensor 57 provided in the device are all electrically connected to an external power supply.

[0052] The device body is a detachable combined structure, and the device body can be disassembled into an air intake structure 1, an air supply structure 2, an air outlet structure 3, a material discharge structure 4 and a detection structure 5.

[0053] The main body of the device first assembles the air intake structure 1, the air supply structure 2 and the air outlet structure 3, wherein the inner part of the ring plate 11 and the inner part of the bottom of the carrier plate 21 are threadedly assembled through the external studs. At this time, the air intake pipe 26 is slidably inserted into the inner wall of the first silicone ring 132 to form a Fig. 27 The combined installation structure shown in the figure is threadedly assembled on the inside of the collar 301 and the top of the carrier plate 21 through the external studs. At this time, the air outlet pipe 27 is slidably inserted into the inner wall of the second silicone ring 3132 to form a Fig.28The combined installation structure shown in the figure has three annular grooves on the top of the carrier plate 21, and three rubber strips are fixedly provided on the bottom of the cone plate 302, the bottom of the inner plate 306 and the bottom of the ring plate 309 respectively. The three annular grooves on the top of the carrier plate 21 are respectively embedded with the three rubber strips, which play an auxiliary positioning role in the combined assembly of the air supply structure 2 and the air outlet structure 3.

[0054] When the device body assembles the air outlet structure 3, the material discharge structure 4 and the detection structure 5, the inner part of the pad 401 and the inner part of the first threaded tube 311 are threadedly assembled through the external studs. At this time, the outer side of the connecting tube 310 is slidably inserted into the inner wall of the second rubber ring 411 to form a Fig.25 The combined installation structure shown is to manually unplug the plug-in 304 that is slidably inserted inside the bar 303, insert and slide the bar 58 into the inner groove opened at the top of the bar 303, and then insert and slide the plug-in 304 and the inclined hole 59 inside the bar 303 and the bar 58 to form a combined structure of the air outlet structure 3, the material discharge structure 4 and the detection structure 5.

[0055] When the device is in use, the air pump device 25 is started with the same rated power, the air intake pipe 26 arranged at the bottom of the air pump device 25 is connected to the first silencer structure 13, the foam metal layer is a material with good sound absorption and noise reduction performance, and the external air is sucked in a noise-reducing manner through the first foam metal layer 136 of the first silencer structure 13, and the first sponge pad 135 filled and arranged between the first cartridge 134 and the first foam metal layer 136 plays a certain buffering and noise reduction role. The air enters the first straight pipe 133, the interior of the air intake pipe 26 and the interior of the air pump device 25, and the ... The air is discharged through the air outlet pipe 27 arranged on the top of the air pump device 25, and the air outlet pipe 27 is connected with the second straight pipe 3133 and the second foam metal layer 3136. The internal air is discharged in a noise-reducing manner through the second foam metal layer 3136 of the second silencer structure 313. The second sponge pad 3135 filled between the second cartridge 3134 and the second foam metal layer 3136 plays a certain buffering and sound-absorbing role. Then the air enters the fiber pad 307 made of porous flexible material and the resin fiber layer 312 for subsequent circulation and noise reduction.

[0056] Manually pull the slider 414 upwards, manually press the lower buckle plate 410 and pull it forward, then the hard rubber frame 407 slides forward, the hard rubber frame 407, the nanofiber membrane body 408, the sheet 409 and the lower buckle plate 410 are pulled out as a whole, and the hard rubber frame 407, the nanofiber membrane body 408, the sheet 409 and the lower buckle plate 410 can be quickly replaced as a whole. When replacing, manually push the lower buckle plate 410 backward, then the hard rubber frame 407 and the rubber strip 406 are inserted and slide backward until a shape as shown in the figure is formed. Fig.15 , Fig.16 , Fig.18 as well as Fig.19 The sliding installation structure shown in the figure is adjusted until the internal hole position of the upper buckle plate 413 is aligned with the internal hole position of the lower buckle plate 410, and the sliding member 414 is manually inserted into the upper buckle plate 413 and the lower buckle plate 410 for reset, as shown in the figure. Fig. 20 shown.

[0057] The air enters the vertical cylinder 402, the cavity shell 403 and the square box 404 through the connecting cylinder 310, and the bottom air passes through the nanofiber membrane body 408, so that the air pressure inside the square box 404 between the air film sheet 405 and the nanofiber membrane body 408 increases, and the air film sheet 405 bulges upward. The bulged air film sheet 405 squeezes the bottom sensing area of ​​the pressure sensor 57 until the pressure test reading of the pressure sensor 57 is transmitted to the external PLC display controller. After the pressure sensor 57 senses the rated pressure reading, the PLC display controller controls the air pump device 25 to turn off. The start-up time of the air pump device 25 is calculated to describe the air permeability comparison of different nanofiber membrane bodies 408. Fig.29 The front-view angle of the device shown is used as the main direction of observation for operators. The swelling rate of the air film sheet 405 seen by the eyes can intuitively show the air permeability of the nanofiber membrane body 408. After the test of a single nanofiber membrane body 408 is completed, the passage of the electrically controlled pressure relief valve 412 is opened to connect the inside of the square box 404 between the air film sheet 405 and the nanofiber membrane body 408 with the outside, so that the air film sheet 405 is reset.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nanofiber membrane air permeability experimental device, comprising an air intake structure (1), an air supply structure (2), an air outlet structure (3), a discharge structure (4) and a detection structure (5), characterized in that: The air intake structure (1) is provided with an air supply structure (2) on the top, an air outlet structure (3) is provided on the top of the air outlet structure (3), a material discharge structure (4) is provided on the top of the material discharge structure (3), and a detection structure (5) is provided on the top of the material discharge structure (4). The air intake structure (1) comprises a ring disk (11), a slot box (12), and a first silencer structure (13). The inner wall of the ring disk (11) is fixedly provided with a slot box (12), and the first silencer structure (13) is provided inside the slot box (12). The air supply structure (2) comprises a carrier disk (21), a soft pad (22), a bottom pad (23), a first rubber ring (24), an air pump device (25), an air intake pipe (26), and a first sound-absorbing structure (13). and an air outlet pipe (27), a soft pad (22) is fixedly arranged on the top of the carrier (21), a bottom pad (23) is fixedly arranged on the inner wall of the soft pad (22) and the top of the carrier (21), a first rubber ring (24) is fixedly arranged inside the carrier (21), an air pump device (25) is fixedly arranged on the inner wall of the soft pad (22) and the top of the bottom pad (23), the bottom end of the air pump device (25) is fixedly connected to an air inlet pipe (26), the air inlet pipe (26) is located inside the first rubber ring (24), the top end of the air pump device (25) is fixedly connected to an air outlet pipe (27), and the air outlet structure (3) comprises a collar (301), a cone disk (302), and a bar (303). , a plug-in (304), a ring plate (305), an inner disk (306), a fiber mat (307), a vertical rod (308), a ring disk (309), a connecting tube (310), a first threaded tube (311), a resin fiber layer (312) and a second sound-absorbing structure (313), wherein a cone disk (302) is fixedly arranged on the inner side of the collar (301), a bar (303) is fixedly arranged on the top of the inclined surface of the cone disk (302), a plug-in (304) is obliquely inserted inside the bar (303), a ring plate (305) is fixedly arranged between the inner wall of the cone disk (302) and the outer wall of the inner disk (306), the inner wall of the cone disk (302), the top of the ring plate (305) and the inner A fiber pad (307) is fixedly arranged between the tops of the disks (306); a vertical rod (308) is fixedly arranged at the bottom of the inner wall of the inner disk (306); a ring disk (309) is fixedly arranged at the bottom end of the vertical rod (308); a connecting tube (310) is fixedly arranged at the center position of the top of the cone disk (302); two first threaded tubes (311) are fixedly arranged symmetrically in the left and right directions on the top of the cone disk (302); a resin fiber layer (312) is fixedly arranged inside the connecting tube (310), inside the top of the cone disk (302) and on the top of the fiber pad (307); a second sound-absorbing structure (313) is arranged between the inside of the inner disk (306) and the inside of the fiber pad (307);The discharge structure (4) comprises a pad (401), a vertical cylinder (402), a cavity shell (403), a square box (404), an air film sheet (405), a rubber strip (406), a hard rubber frame (407), a nanofiber membrane body (408), a sheet (409), a lower buckle plate (410), a second rubber ring (411), an electrically controlled pressure relief valve (412), an upper buckle plate (413) and a sliding member (414), wherein the top of the pad (401) is fixedly provided with a vertical cylinder (402), the top of the vertical cylinder (402) is fixedly connected to the cavity shell (403), the top of the cavity shell (403) is fixedly connected to the square box (404), the top of the square box (404) is fixedly provided with an air film sheet (405), and the square box (404) ) is fixedly provided with a rubber strip (406) on the inner wall of the slide groove opened on the inner wall, the hard rubber frame (407) is slidably provided with the rubber strip (406), the inner wall of the hard rubber frame (407) is fixedly provided with a nanofiber membrane body (408), the front end of the hard rubber frame (407) is fixedly provided with a sheet (409), the front end of the sheet (409) is fixedly provided with a lower buckle plate (410), the inner wall of the vertical cylinder (402) is fixedly provided with a second rubber ring (411), the rear end of the square box (404) is fixedly connected to an electrically controlled pressure relief valve (412), the front end of the square box (404) is fixedly provided with an upper buckle plate (413), and the interior of the upper buckle plate (413) and the interior of the lower buckle plate (410) are both slidably inserted with a sliding member ( 414), the detection structure (5) comprises an upper plate (51), a second threaded cylinder (52), a positioning cylinder (53), a pressure plate (54), a column block (55), a cartridge frame (56), a pressure sensor (57), a rod (58) and an inclined hole (59), wherein the second threaded cylinder (52) is fixedly arranged on the left side of the top of the upper plate (51), the positioning cylinder (53) is fixedly arranged on the right side of the top of the upper plate (51), a pressure plate (54) is provided on the top of the upper plate (51), a column block (55) is fixedly arranged on the right side of the bottom of the pressure plate (54), a cartridge frame (56) is fixedly arranged on the inner wall of the pressure plate (54), a pressure sensor (57) is fixedly arranged inside the bottom end of the cartridge frame (56), and the left and right sides of the bottom of the upper plate (51) are symmetrically fixed. A rod (58) is provided, an inclined hole (59) is provided inside the rod (58), the inside of the pressure plate (54) and the inside of the second threaded cylinder (52) are assembled by means of external stud threads, the column block (55) is inserted and slidably arranged inside the positioning cylinder (53), the inside of the upper plate (51) is slidably arranged with the cylinder frame (56), the first silencer structure (13) comprises a first cylinder (131), a first silicone ring (132), a first straight tube (133), a first clamping cylinder (134), a first sponge pad (135) and a first foam metal layer (136), the first silicone ring (132) is fixedly arranged on the inner wall of the first cylinder (131), the bottom end of the first cylinder (131) is fixedly connected to the first straight tube (133),The first cartridge (134) is symmetrically fixedly arranged at the left and right ends of the first straight tube (133); a first sponge pad (135) is fixedly arranged on the inner wall of the first cartridge (134); a first foam metal layer (136) is fixedly arranged inside the first sponge pad (135) and on the inner wall of the first cartridge (134); the first cartridge (134) is fixedly arranged inside the slot box (12); the second sound-absorbing structure (313) comprises a second cylinder (3131), a second silicone ring (3132), a second straight tube (3133), a second cartridge (3134), a second sponge pad (3135) and a second foam metal layer (3136); 6) A second silicone ring (3132) is fixedly arranged on the inner wall of the second cylinder (3131), a second straight tube (3133) is fixedly connected to the top of the second cylinder (3131), a second cartridge (3134) is symmetrically fixedly arranged on the left and right ends of the second straight tube (3133), a second sponge pad (3135) is fixedly arranged on the inner wall of the second cartridge (3134), a second foam metal layer (3136) is fixedly arranged inside the second sponge pad (3135) and on the inner wall of the second cartridge (3134), and the second cartridge (3134) is fixedly arranged inside the inner disk (306) and inside the fiber pad (307).

2. A nanofiber membrane air permeability experimental device according to claim 1, characterized in that: When the air intake structure (1), the air supply structure (2) and the air outlet structure (3) are assembled, the inside of the ring disk (11) and the inside of the bottom end of the carrier disk (21) are assembled and arranged by means of external stud threads, the air intake pipe (26) is slidably inserted into the inner wall of the first silicone ring (132), the inside of the sleeve ring (301) and the inside of the top end of the carrier disk (21) are assembled and arranged by means of external stud threads, the air outlet pipe (27) is slidably inserted into the inner wall of the second silicone ring (3132), three annular grooves are provided on the top of the carrier disk (21), three rubber strips are fixedly provided on the bottom of the cone disk (302), the bottom of the inner disk (306) and the bottom of the ring disk (309), and the three annular grooves provided on the top of the carrier disk (21) are respectively embedded with the three rubber strips.

3. A nanofiber membrane air permeability experimental device according to claim 1, characterized in that: When the air outlet structure (3), the material discharge structure (4) and the detection structure (5) are assembled, the interior of the pad (401) and the interior of the first threaded tube (311) are assembled by means of external stud threads, the outer side of the connecting tube (310) is inserted and slidably connected to the inner wall of the second rubber ring (411), the inner groove provided on the top of the bar (303) is inserted and slidably connected to the bar (58), and the plug-in unit (304) is inserted and slidably connected to the interior of the bar (303) and the inclined hole (59) inside the bar (58).

Images