113 results about "Nylon mesh" patented technology

The invention discloses a field miniature PVC litter decomposition experiment ring which comprises a miniature ring structure, observation opening structures are oppositely formed in the outer surface of the miniature ring structure, a nylon net structure with the pore diameter of 5 mm is glued in an inner cavity of one observation opening structure, a nylon net structure with the pore diameter of 50 microns is glued in the other observation opening structure, and the inner cavity of the other observation opening structure is glued with a nylon net structure with the pore diameter of 50 microns. The top of the outer ring of the miniature ring structure is sleeved with a disassembly and assembly ring, and a cover net structure which is in a stretched state and has the aperture of 50 micrometers is glued to the top of the disassembly and assembly ring. Firstly, the influence of microenvironment interference and physical limitation in the litter decomposition process is solved, and the situation that the decomposition rate deviates from a true value due to litter compaction and rainfall erosion in the environment is avoided; secondly, the problem that a litter mesh bag method changes the feeding preference of soil animals is solved, it is ensured that the decomposition behavior is consistent with the natural state, and finally, due to the fact that the decomposition process is protected by the miniature environment, the influence of human factors and large animals is avoided.

The invention belongs to the technical field of salix psammophila sand barrier laying, and particularly relates to an automatic degradable nylon net sand barrier combined mechanical salix psammophila sand barrier laying machine which comprises a vehicle body, salix psammophila strip finished products, a partition wall, a containing groove, a pushing structure, an avoiding type downward pressing structure, a reciprocating type net distributing structure and a net clamping assembly. A plurality of finished salix psammophila strips can be quickly inserted into sand land through an arranged receding type downward pressing structure, planting efficiency is high, planting grooves do not need to be dug manually, meanwhile, nylon nets can be attached to the finished salix psammophila strips in an S shape through an arranged reciprocating net distribution structure, and by attaching the nylon nets to the finished salix psammophila strips in an S shape, the yield of the finished salix psammophila strips is improved. The whole stability of the salix psammophila strip finished products is improved, local collapse of the salix psammophila strip finished products is avoided, meanwhile, gaps between every two adjacent salix psammophila strip finished products can be sealed through the nylon nets, the meshes of the nylon nets can disperse and weaken the impact force of wind and sand on the salix psammophila strip finished products, wind erosion to soil is reduced, and soil preparation and treatment are conducted on sand land.

The invention discloses a lightweight VC vapor chamber which comprises an upper cover shell, a lower cover shell and a capillary structure, the capillary structure is a nylon net and is arranged between the upper cover shell and the lower cover shell, and working water is quantitatively instilled on the capillary structure. The opposite edges of the upper cover shell and the lower cover shell are provided with sealing double-faced adhesive tape used for vacuum sealing connection, the upper cover shell and the lower cover shell are combined through the sealing double-faced adhesive tape to form a closed flat structure, a vacuum cavity is formed in the closed flat structure, and the capillary structure and the working water liquid are located in the vacuum cavity. Compared with a traditional vapor chamber, a pipe inserting opening / a water filling opening is omitted, the sealing double-faced adhesive tape is pressed and sealed in a vacuum environment, the production process is simplified, equipment investment and labor hour consumption are reduced, the production efficiency is improved, the nylon net serves as a capillary structure, circulation of working water can be effectively achieved, and it is ensured that a product has the stable heat conduction performance; and the nylon net is low in weight and cost, the lightweight requirement of products is met, and the production cost is reduced.

The utility model discloses a corona machine high-pressure gas filtering device, which relates to the technical field of filtering devices and comprises a corona back roller, a protective cover covers the outer side of the corona back roller, a high-pressure electrode is fixedly connected to the top end in the protective cover, a high-pressure tuyere is fixedly connected to one side of the protective cover, and the high-pressure tuyere is fixedly connected to the other side of the protective cover. A high-pressure air pump is fixedly connected to one side of the high-pressure air nozzle, a filter box is fixedly connected to one end of the high-pressure air pump, activated carbon, a nylon net and non-woven fabric are fixedly connected to the interior of the filter box, a metal filter net is installed on the front side of the filter box, a material receiving box is fixedly connected to the bottom of the front side of the filter box, and a cleaning plate is arranged on the rear side of a moving plate. According to the high-pressure gas filtering device of the corona machine, the cleaning plate moves and wipes on the surface of the metal filter screen, dust on the surface of the metal filter screen is cleaned, the dust is pushed to the discharging position, dust collection is facilitated, and meanwhile activated carbon, a nylon net and non-woven fabric can be detached and replaced conveniently.

The utility model discloses a high strength coalescence filter element relates to coalescence filter element technical field, including coalescence filter element body, coalescence filter element body includes from inside to outside in proper order inner skeleton net, foldable coalescence layer and nylon net cover, nylon net cover is provided with a plurality of hot melt rubber ring that wrap coalescence layer outer surface and along filter element length direction interval arrangement. According to the utility model, the plurality of hot melt adhesive rings which are arranged at intervals along the length direction of the filter element are heated, so that the hot melt adhesive is melted and enters the foldable coalescence layer, and then the filter element is cooled, so that the coalescence layer with the hot melt adhesive is solidified, a plurality of supports are arranged in gaps of the coalescence layer along the length direction of the filter element, and the internal strength of the coalescence filter element is improved; and gaps in the coalescence layer are forced to open, so that the gaps in the coalescence layer are not easy to change in the ventilation process, and the filtering efficiency is indirectly improved.

The utility model discloses a purification device for precious metal platinum recovery in the technical field of platinum recovery, which comprises a support table, a blanking mechanism and a pushing mechanism arranged above the support table, a quartz beaker arranged on the left side of the support table, a second rubber base plate arranged at the rear end of the quartz beaker, and a motor body mounted at the rear end of the second rubber base plate. A connecting plate is fixedly mounted on the outer wall of the motor body, telescopic rods are fixedly mounted at the left end and the right end of the connecting plate correspondingly, and the purifying device for precious metal platinum recovery is composed of a supporting table, a discharging mechanism and a pushing mechanism. According to the device, core assemblies such as clamping and overturning of the quartz beaker, precise liquid injection of the electric control valve, solid-liquid separation of the nylon net body, automatic pushing of the gas rod body and high-temperature smelting of the fire-jet head are modularly integrated, so that full-process automatic continuous operation of acid leaching impurity removal, waste liquid recovery, washing and drying and smelting purification is realized; the problem of low efficiency of multi-container step-by-step operation in the traditional process is effectively solved, the operation safety is improved, and the precious metal loss rate is reduced.

The utility model relates to a windproof breathable car cover. The vehicle cover is composed of a plurality of cover forming pieces, a front stabilizing assembly, a rear stabilizing assembly, a front elastic assembly and a rear elastic assembly. The overclothes composition pieces comprise an overclothes top piece, a right side piece, a left front piece and a left rear piece and cooperatively wrap a vehicle, the right side piece and the left rear piece are provided with ventilation positions, ventilation holes, high-strength nylon mesh cloth and waterproof and breathable ventilation opening covering cloth, and ventilation, heat dissipation and waterproofness are guaranteed. Invisible zipper ear caps are arranged on the right side piece and the left front piece and can adapt to the positions of rearview mirrors of different vehicle types. The front stabilizing assembly and the rear stabilizing assembly are connected in a three-point mode through adjustable braid inserting buckles, and the vehicle cover is stabilized. The length of the car cover can be flexibly adjusted through telescopic adjusting braid inserting buckles of the front elastic assembly and the rear elastic assembly. The car cover effectively solves the problems of wind resistance, ventilation, universality and size adjustment of an existing car cover, and is widely suitable for outdoor parking, severe weather, long-term parking, night parking and other scenes.

This invention relates to a wearable, integrated, self-powered pressure sensing device based on a flexible zinc-sodium hybrid battery and its fabrication method. The device includes an integrated sensor and a signal processing unit. The integrated sensor comprises a sensing layer, a shared positive electrode layer, and a battery layer arranged sequentially from top to bottom. The signal processing unit is connected to the sensing layer, the shared positive electrode layer, and the battery layer. This invention effectively overcomes the challenges of baseline instability and mechanical failure of flexible devices in complex environments by leveraging the sensitivity enhancement effect of MXene nanosheets, the zero-drift control technology of nylon mesh, and the low-temperature antifreeze mechanism of ethylene glycol (EG). This invention opens up a key path from "modification of basic electrochemical materials" to "portable terminal system applications," truly realizing portable, wide-temperature-range, and long-life in-situ online monitoring of human physiological signals, providing a new design paradigm for the engineering implementation of next-generation high-performance, low-power wearable sensing systems.

The utility model discloses a protective support and public building construction device, including the support assembly, the support assembly includes shell, one side outer wall of shell is welded with the support plate, and both sides outer wall of the support plate is welded with a plurality of spacer pins, the support assembly is internally provided with the partition assembly, the partition assembly includes rolling shaft tube, support frame, rolling shaft tube, the support frame, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube and rolling shaft tube. The supporting frame is installed in the center of the top end of the shell through a bolt. The top end of the winding shaft pipe is installed on the supporting frame through a bearing. When a construction site is protected and isolated, the nylon net can be fixed to the other support assembly through matching of the rubber blocks and the limiting pins, the nylon net unfolded in the process has the large length, the purpose of protecting and isolating the large-area public building construction site can be achieved, meanwhile, the mesh diameter of the nylon net is small, and the service life of the nylon net is prolonged. Short people such as children can be prevented from penetrating through the protective support, broken stones and the like generated during construction are prevented from splashing out of a construction site, and the protective capacity for the construction site is greatly improved.

The present application relates to the field of environmental analysis, in particular to a forest litter decomposition rate estimation method, system, device and storage medium. The present application aims at the problems of long cycle, great environmental influence, time-consuming and laborious of the existing nylon mesh bag method for determining the forest litter decomposition rate, and the problem of being unable to carry out decomposition research on large-scale forests, and provides a forest litter decomposition rate estimation method, system, device and storage medium, measures and calculates the current year input of the forest litter p and the annual input increment, determines the residual rate constant r of the forest litter through experimental method or searching for relevant data in the past, and combines the residual rate constant r with the OLson single index decomposition model of the forest litter to establish a solution equation of the forest litter decomposition rate. This method has short cycle, does not need to be measured in the field regularly and frequently, has small environmental influence, the parameters and variables in the equation are easy to obtain, time and labor are saved, and decomposition rate research can be carried out on large-scale forests.

The utility model discloses a waterproof breathable composite TPU film which comprises a TPU film base layer, an upper supporting layer and a lower supporting layer are arranged at the bottom of the TPU film base layer, a heat preservation layer, a nylon net layer and a corrugated film layer are arranged above the TPU film base layer, a reinforcing assembly is arranged between the upper supporting layer and the lower supporting layer, and the upper supporting layer is connected with the lower supporting layer. A plurality of waterproof isolation holes are formed in the TPU film base layer, flow guide grooves are formed between the adjacent waterproof isolation holes, and the waterproof isolation holes are filled with waterproof agent layers. The TPU composite film is scientific and reasonable in structural design, the TPU composite film structure formed by compositing the TPU film base layer, the upper supporting layer, the lower supporting layer, the heat preservation layer, the nylon net layer and the corrugated film layer is arranged, the strength of the TPU film is effectively improved, and the good tear-resistant effect is achieved.

A kind of polyvinylidene fluoride and poly (methyl methacrylate) gradient composite fiber membrane and its preparation method and application, poly (methyl methacrylate) and polyvinylidene fluoride are respectively dissolved in the mixed solution of N, N dimethylformamide and methyl acetate, oil bath stirring, obtain homogeneous transparent spinning solution;The above two kinds of spinning solution are added in needle tube respectively, fixed on microfluidic spinning advance pump, connect infusion hose;Temperature and humidity in spinning bin are controlled, install nylon net on receiver to carry out gradient composite fiber membrane collection, by microfluidic control system, polyvinylidene fluoride and poly (methyl methacrylate) spinning solution pumping is carried out at different change rate, open air valve, and carry out spinning;Gradient composite fiber membrane is taken off from nylon net, and dried to obtain two-component air-blowing poly (methyl methacrylate) and polyvinylidene fluoride gradient composite membrane.

The utility model relates to electronic equipment technical field, especially a kind of sound production device and earphone. The sound production device includes shell, nylon net and silica gel net, the shell is provided with sound production hole, installation cavity is formed at the sound production hole;The nylon net is clamped in the installation cavity, and the nylon net completely covers the sound production hole;The silica gel net is set to the side of the nylon net away from the sound production hole, the silica gel net is clamped in the installation cavity, and the silica gel net completely covers the nylon net. The earphone includes the sound production device described above. The earphone of the above-mentioned sound production device can effectively prevent dirt from entering the sound production hole of the earphone, which is beneficial to ensure the cleanliness of the sound production hole of the earphone and prolong the service life of the earphone.

The utility model relates to the field of dyeing devices, and discloses a dyeing device of a cotton thread chinlon net, which comprises a box body, the outer side of the box body is fixedly connected with a fixing plate, the outer side of the fixing plate is rotatably connected with two rotating wheels I, the peripheries of the two rotating wheels I are sleeved with a belt I, the outer sides of the rotating wheels I are fixedly connected with a motor, and the motor is fixedly connected with a belt II. Wherein one first rotating wheel is fixedly connected to the output end of the motor, a fixing clamp is fixedly connected to the outer side of the first belt, a second rotating wheel is rotationally connected to the outer side of the fixing plate, the periphery of the second rotating wheel is sleeved with a second belt, and the second belt is fixedly connected to the middle of the fixing clamp. According to the deep cleaning device, the first belt and the second belt are fixed through the fixing clamp, when the first rotating wheel moves, the second belt is driven to move, the second belt is fixed to the connecting plate, the other end of the connecting plate is fixed to the water sprayer, and therefore the water sprayer moves up and down along with the second belt when the motor operates, and the deep cleaning effect is achieved.

This utility model discloses a device for cleaning and salvaging floating objects on water, including a float assembly and a nylon net (5). The nylon net (5) is set below the float assembly. The float assembly includes at least two floats (3), at least one left-side brush float (1), and at least one right-side brush float (4). The two ends of the floats (3) are provided with interlocking modular structures, and the modular structures are provided with through holes (7) and threaded holes (8). The left-side brush float (1) and the floats (3), the two adjacent floats (3), and the floats (3) and the right-side brush float (4) are connected as a whole by threaded pins (2). The float assembly and the nylon net (5) are connected to the aqueduct, aqueduct (13), or ship compartment by cables (10). When the ship lift is not in operation, the device of this application is placed in the ship lift aqueduct, aqueduct, or ship compartment to collect floating objects on water by active capture or passive interception.

The utility model discloses a coalescence filter element, and relates to the technical field of filter elements, the coalescence filter element comprises a filter element assembly and a supporting mechanism installed in the filter element assembly, the filter element assembly comprises a filter pipe, the outer wall of the filter pipe is sleeved with a coalescence layer, the outer wall of the coalescence layer is sleeved with a nylon net, and the nylon net is arranged on the outer wall of the filter pipe. A plurality of through holes which are distributed at equal intervals are formed in the outer wall of the filter pipe. The coalescence layer is arranged on the outer wall of the filter pipe, the coalescence layer is formed by combining the wood pulp paper and the wave fiber layer, and a double-V-shaped combination mode is adopted at the bonding position of the wood pulp paper, so that an original double-sided bonding mode is changed into a four-sided bonding mode, the stability of the bonding position of the wood pulp paper is improved, and the service life of the filter pipe is prolonged. The problem that the bonding position of existing wood pulp paper is prone to glue failure is solved.

The utility model belongs to the technical field of earthworm breeding, and particularly relates to a breeding frame for breeding earthworms, which comprises a support frame, a plurality of supporting frames and a plurality of supporting frames, a cover plate is arranged at the top of the anti-escape frame, and the bottom of the anti-escape frame is fixed to the supporting frame through bolts; limiting holes are formed in the middles of the cover plates. The periphery of the nylon net is pressed between the supporting frame and the anti-escape frame, and the middle of the nylon net naturally droops and penetrates through the avoiding opening; a clamping plate is arranged on the supporting plate, and two symmetrical vent pipes are vertically arranged on the clamping plate; the bottom of the vent pipe penetrates through the clamping plate and the bottom of the nylon net and is fixed with the supporting plate through nuts; a connecting plate is arranged at the top of the vent pipe; a connecting ring is arranged on the upper surface of the connecting plate; the motor is located on the cover plate, and an output shaft of the motor is connected with a wire spool; a pull rope on the wire spool penetrates through the limiting hole downwards and is connected with the connecting ring. The earthworm breeding device can solve the problem that the growth of earthworms is affected due to the fact that the oxygen content in breeding feed is gradually reduced along with time, and has good market application prospects.

The utility model discloses a nylon gauze double-sided bath ball which is composed of an annular nylon layer and a gauze layer and further comprises a first bridle and a second bridle which are bound at the opposite ends of the nylon layer and the gauze layer. A movable hanging rope is arranged on the first bridle / the second bridle, and a fixing buckle is arranged on the other second bridle / the first bridle. On the premise that original functions are guaranteed, the hanging rope can be stored in the bath ball, the hanging rope is prevented from being shaken when the bath ball is used, and when fingers penetrate through the hanging rope in the bath ball, the bath ball can be further prevented from falling off.

This utility model discloses a fluorocarbon-free packaging paper. The utility model includes a paper base layer: a first waterproof layer is disposed on the top of the paper base layer, and a second waterproof layer is disposed on the bottom of the paper base layer. A nylon mesh and a degradation layer are disposed on the top of the first waterproof layer. With this utility model, users can tear the food packaging paper along the creases to expose the nylon mesh inside the food packaging paper. Pulling the nylon mesh then cuts the food packaging paper, thereby destroying the oil-proof layer. This breaks down the overall structure of the paper base layer, the first waterproof layer, the second waterproof layer, the reinforcing layer, and the oil-proof layer, allowing them to fully contact the outside environment and increasing the degradation rate of the food packaging paper. Furthermore, the waterproof adhesive, the first oil-proof adhesive, the second oil-proof adhesive, and the oil-proof layer are disposed on the food packaging paper, preventing the food packaging paper from being soaked in oil or water. The nylon mesh facilitates the separation of the printed layer and the food packaging paper, promoting the degradation of the food packaging paper.

The utility model discloses a water ecological environment biodegradation repairing device which comprises a floating frame, the extension part comprises a nylon net frame, a spring, a moving groove, a pressing plate, a guide rod, a guide hole and a moving block, the nylon net frame is connected to the bottom of the floating frame, the moving groove is formed in the floating frame, and the moving block is connected to the upper portion of the outer surface of the nylon net frame and movably connected to the interior of the moving groove; the guide rod is connected to the inner surface of the moving groove, and the guide hole is formed in the middle of the moving block. When the device is actually used, the storage capacity of the floating net cage is limited, when floating plants in the floating net cage are increased to a certain amount, the floating plants are extremely easy to overflow and are difficult to adjust adaptively according to the accumulation condition of the floating plants, and the internal space of the net cage cannot be utilized reasonably and effectively, so that the collected floating plants are scattered back to a water area again; therefore, the efficiency and the quality of water ecological environment biodegradation restoration work are influenced.

The invention discloses a washable flexible electronic tag and a manufacturing process thereof, and belongs to the technical field of radio frequency identification, and the manufacturing process of the washable flexible electronic tag comprises the following steps: laying a nylon grid in a mold, fixing the nylon grid, spraying a release agent, injecting SE-1740 transparent sealant into the mold, strickling, curing, and demolding to obtain the washable flexible electronic tag. Forming a rubber base layer; an antenna and a chip are laid on the surface of the rubber base layer, and an antenna-chip layer is formed after hot-pressing lamination; spraying an outer protective layer on the surface of the antenna-chip layer, wherein the outer protective layer sequentially comprises a bottom compound layer, a middle photo-thermal / conductive layer and a super-hydrophobic / antibacterial layer from inside to outside; and coating a hot melt adhesive on the back surface of the rubber base layer to form a back adhesive layer. Through the multi-stage collaborative design of the nylon grid reinforced matrix, the MXene conductive layer, the Fe3O4 self-repairing layer and the silver fluoride antibacterial layer, the washing resistance, the conductive stability, the antibacterial performance and the mechanical reliability are improved.

The invention discloses a construction method of a desert road composite sand prevention system, which belongs to the technical field of desert road sand prevention, and comprises the following steps of: measuring and paying off sand on two sides of a roadbed, and laying a composite system consisting of grass checkered sand barriers and high standing sand barriers; the reeds soaked with the bio-based sand solidification agent are laid to form grass checkered sand barriers, and the reeds are pressed into a sand layer; a high vertical sand barrier is arranged on the outer side of the grass checkered sand barrier, the high vertical sand barrier is formed by combining reed bundle sand barriers and PE nylon net sand barriers at intervals, and the surface of the PE nylon net is coated with an anti-ultraviolet composite coating; the high-standing sand barrier takes a timber pile as a stand column, and a wind speed sensor and a wind erosion flux sensor are mounted at the top of the timber pile; during construction, a fireproof isolation belt filled with a flame-retardant ecological blanket is arranged in the direction of a route. Through composite arrangement of the grass checkered sand barriers and the high standing sand barriers, a multi-layer and three-dimensional wind prevention and sand fixation structure is formed, the near-surface wind speed is effectively reduced, starting and transportation of sand grains are inhibited, and the overall wind erosion resistance of the system is remarkably improved.

This utility model relates to a seamless steel pipe for ultra-low temperature alloy structures with rust-proof function, comprising a steel base pipe, an outer wall of which is provided with a corrosion-resistant layer, an outer layer of which is provided with a water-proof layer, and an outer layer of which is provided with a wear-resistant layer. This seamless steel pipe for ultra-low temperature alloy structures with rust-proof function comprises, from the inside out, a steel base pipe, a galvanized metal layer, a fiber reinforcement layer, a water-proof layer, and a wear-resistant layer. The galvanized metal layer is hot-dip galvanized and directly adheres to the surface of the steel base pipe, filling the microscopic defects of the matrix and making the pores smaller. The fiber reinforcement layer is a glass fiber braided layer, with the glass fiber braided layer interlaced at 45° and bonded to the galvanized metal layer with epoxy resin. The mesh skeleton is a nylon mesh, and the water-proof adhesive layer is a butyl rubber / polyurethane composite adhesive. The nylon mesh is embedded in the middle of the water-proof adhesive layer, which can enhance the shear deformation resistance of the water-proof layer.

The utility model relates to the technical field of pomacea canaliculata trapping, and discloses a pomacea canaliculata trapper which comprises a collecting box, the upper end of the collecting box is fixedly connected with a shielding mechanism through a plurality of supporting rods, and one side of the collecting box and one side of the shielding mechanism are jointly provided with a fixing rod. The shielding mechanism comprises a supporting plate and a soft nylon net bag installed at the lower end of the supporting plate, and a balancing weight is arranged at the lower end of the inner side of the soft nylon net bag. The fixing rod is inserted into sludge, so that the whole trapper can be fixed, the situation that the trapper cannot be found after use is avoided, and the trapper can be recycled and reused easily; according to the pomacea canaliculata collecting box, the soft nylon net bag covers the inlet in the collecting box, when the pomacea canaliculata crawl towards the inlet, the soft nylon net bag can be easily jacked open from the outside, the soft nylon net bag is attached to the inlet, and the pomacea canaliculata cannot crawl out from the interior of the box body; and external garbage and sundries can be prevented from falling into the box body from the inlet.

The utility model provides a blast hole protection device for blasting of a stone cutting close to a high-voltage line, which comprises a plugging bag assembly for plugging a blast hole, a blast cover layer covering the outer surface of the plugging bag assembly, and a positioning assembly for fixing a plurality of adjacent blast cover layers on the ground surface, the positioning assembly comprises a flexible protective layer covering the outer side of the cannon cover layer and a plurality of flexible pressing and covering bags, the bottoms of the flexible pressing and covering bags are provided with inserting rods inserted into the ground surface soil layer, and the pressing and covering sandbags can enable the nylon net to be tightly attached to the ground, so that the phenomenon that the nylon net is loosened due to wrinkles is avoided.

The utility model provides adjustable isolation net rack for corn inbred line isolation seed production relates to corn inbred line isolation seed production field, include: a plurality of support frame, a plurality of support frame's top is provided with height adjusting mechanism, the height adjusting mechanism includes a plurality of adjusting sliding slot, a plurality of telescopic stand, a plurality of first threaded hole, a plurality of first locking screw, a plurality of support subassembly and a plurality of ground -grabbing subassembly, fixed mechanism is located in the side wall of support frame and height adjusting mechanism, the scheme, through setting height adjusting mechanism, can be convenient according to the height of corn's growth to the height of isolated surrounding direct telescopic regulation heightening, thereby reached without replacing the net rack of different height to carry out isolated surrounding, simple operation is convenient time -saving and labor -saving, effectively improve the purpose of use convenience, and through setting fixed mechanism, can be convenient according to the use need to the nylon net or screen is convenient magnetism suction adsorption fixed, thereby reached the purpose of effectively further improving use convenience.

The utility model discloses anti-deformation high-cleanness bobbin paper, and relates to the technical field of textile. The anti-deformation high-cleanliness bobbin paper comprises a bobbin paper body and a lining, the bobbin paper body is installed at the upper end of the lining, a waterproof layer is arranged at the top end of the bobbin paper body, a pressure-resistant mechanism is arranged on the inner wall of the lining, a flame-retardant layer is arranged at the lower end of the lining, and a wear-resistant layer is arranged at the lower end of the flame-retardant layer. The strength of the bobbin paper body is improved through the nylon net in the pressure-resistant mechanism, so that the bobbin paper body is not prone to being torn, when the bobbin paper body is extruded, force is guided into the lining, the pressure is evenly transmitted to the nylon net through the rubber rod to be relieved, the buffering performance of the bobbin paper body can be enhanced, and the bobbin paper body is not prone to being torn. Therefore, the bobbin paper is prevented from deforming after being extruded by a machine or the outside.

The utility model discloses a platelet rich plasma preparation device which comprises a vacuum tube, a permeation tube and a pipeline communicated with the vacuum tube and the permeation tube, the vacuum tube is a cylindrical hollow tube, the top of the vacuum tube is provided with a pressing plug capable of being pressed, and the pressing plug is provided with an area for inserting a blood drawing needle. A first membrane assembly with the aperture of 0.2-5 microns is arranged in the vacuum tube, and the first membrane assembly comprises a first membrane layer, a coating layer arranged on the bottom surface of the first membrane layer and a nylon net arranged at the bottom of the coating layer; the permeation tube is U-shaped, an inlet and an outlet are respectively arranged at two ends of the U-shaped permeation tube, a hollow fiber membrane is arranged in the permeation tube, the hollow fiber membrane is bent to have a radian consistent with the appearance of the permeation tube, two ends of the hollow fiber membrane are respectively connected with the inlet and the outlet, and the molecular weight cut-off of the hollow fiber membrane is 2-40,000 Daltons. A waste discharge port is formed in the permeation pipe. According to the utility model, the preparation efficiency is improved, and high-concentration PRP (platelet rich plasma) can be obtained under the condition of less blood consumption.

The utility model belongs to the technical field of packaging boxes, and particularly relates to a honeycomb lining special-shaped structure packaging box which comprises a box body, a honeycomb bearing piece used for flexible protection is arranged in the box body, and a containing cavity attached to the appearance of a packaged product is arranged in the honeycomb bearing piece. The buffer sponge layer is arranged on the outer side of the box body and used for providing buffer protection for the box body; the nylon net reinforcing layer is arranged on the outer side of the buffer sponge layer and used for improving the overall toughness and avoiding tearing; the paperboard layer is arranged on the outer side of the nylon net reinforcing layer; the waterproof layer is arranged on the outer side of the paperboard layer and is used for preventing water; the buffering sponge layer can provide buffering protection for the box body, the nylon net reinforcing layer can improve the overall toughness and avoid tearing damage, the waterproof layer is arranged to play a waterproof role, and the anti-slip layer is arranged to increase the friction force and prevent the paper from slipping off when the paper is taken.

The invention discloses a device and an estimation method for contribution of soil animals to decomposition of forest litter, the device comprises a net post, the top end and the bottom end of the net post are respectively provided with a net cover and a net bottom, the net cover is connected with the top of the net post through a zipper, and the net bottom is fixedly connected with the bottom of the net post; the net columns, the net cover and the net bottom are all made of nylon nets, and the diameter of net holes of the nylon nets ranges from 50 micrometers to 5 millimeters. And soil animals are arranged in the net columns. Compared with a nylon net bag method for testing the influence of soil animals on litter decomposition, a planar litter bag is changed into the three-dimensional litter decomposition column, the large three-dimensional space can reduce changes of hydrothermal conditions in the net caused by separation of a nylon net, the hydrothermal conditions in the decomposition column are closer to the nature, and the litter decomposition effect is greatly improved. Meanwhile, the net cover prevents litters in the decomposition column from flowing away and litters outside the decomposition column from entering, so that the accuracy of decomposition determination of the litters and the accuracy of determination of influence on physical and chemical properties of soil in the decomposition process are improved.