133 results about "Plastic foam" patented technology

Disclosed is an all-plastic foam pump structure, including a pressing head (1) made of plastic, a mesh passage (2), a pump body (3), a bottle locking cap (4), a main column (5), an air suction plug (6), a liquid suction plug (7), an elastic sleeve (8), and a pump bead (9), where the bottle locking cap (4) is connected to an upper end of the pump body (3) in an inserted manner; the pump body (3) includes an air chamber (31) and a liquid chamber (32) which are provided at the top and bottom; the air suction plug (6) is provided in the air chamber (31) and connected to the pressing head (1) in an inserted manner, and the mesh passage (2) is arranged between the air suction plug (6) and the pressing head (1); an upper end of the main column (5) extends out of the air chamber (31) and is connected to the air suction plug (6); when the pressing head (1) is pressed downwards, the main column (5) moves downwards together with the air suction plug (6); the liquid suction plug (7) is provided in the liquid chamber (32) and is connected to a lower end of the main column (5); the elastic sleeve (8) sleeves an outer side of the main column (5) and is an elastic plastic annular piece with an opening arranged on a side surface; the pump bead (9) is provided at an inlet of a lower end of the liquid chamber (32). All assemblies of the foam pump are made of plastic and may be recycled without disassembly and classification, improving the recycling efficiency.

The present invention relates to the field of wastewater treatment technology, and discloses an intelligent wastewater treatment device for PET plastic foam processing, comprising a horizontally arranged transfer tank and a flocculation tank, a filtration tank, and a temporary storage tank arranged around the periphery of the transfer tank. The transfer tank is connected to the flocculation tank, the filtration tank, and the temporary storage tank via a connecting port arranged along the length of the transfer tank. The transfer tank is provided with a switching assembly, the switching assembly comprising a switching shaft rotatably arranged in the middle of the transfer tank, and three partitions are arranged around the sidewall of the switching shaft. The intelligent wastewater treatment device for PET plastic foam processing, through the flocculation tank, the filtration tank, the temporary storage tank, and the transfer tank, forms a horizontally rotatable overall structure. In conjunction with the switching assembly, the flocculation, filtration, adsorption, and other treatment processes are integrated into a compact horizontally arranged device, replacing traditional pumping with gravity flow, significantly reducing energy consumption and floor space. In addition, each treatment tank can be independently disassembled and maintained.

The utility model discloses crushing equipment for recycling and reusing a waste plastic foam box, which comprises a conveying mechanism, the top of the conveying mechanism is fixedly communicated with a blanking frame, the top of the blanking frame is fixedly communicated with a crushing frame, a crushing mechanism for crushing the foam box is arranged in the crushing frame, and a crushing mechanism for crushing the foam box is arranged in the crushing frame. And the top of the crushing mechanism fixedly communicates with a feeding frame for placing the foam box, and a preliminary crushing mechanism for preliminarily crushing the foam box is arranged in the feeding frame. According to the utility model, the arc-shaped feeding frame is arranged to conveniently feed the foam box, and the foam box is firstly contacted with the primary crushing mechanism after being fed, so that the foam box can be crushed into small foam blocks firstly, and the arranged primary crushing mechanism can also be conveniently detached to facilitate cleaning and maintenance of the primary crushing mechanism; then, the small foam blocks can be subjected to secondary treatment on the crushing mechanism, and the crushed foam blocks can be intensively collected and reused through the conveying mechanism.

The invention relates to the technical field of fruit fresh-keeping storage, and discloses a low-carbon fresh-keeping litchi normal-temperature storage, transportation and packaging method which comprises the following steps: (1) pretreatment: picking fresh litchis, screening the picked fresh litchis, and then precooling the screened litchis until the temperature of fruit cores is 0-15 DEG C; (2) packaging: carrying out e-commerce packaging in an operation room at the temperature of 15-20 DEG C, firstly putting a phase change cold storage agent at the bottom of an aluminum foil heat preservation bag, then putting a bacteriostatic fresh-keeping water absorption pad, then putting the pretreated fresh litchis, packaging by using the aluminum foil heat preservation bag coated with a macromolecular waterproof layer, and finally putting the litchis into a drying room at the temperature of 15-20 DEG C; the whole aluminum foil heat preservation bag is placed into a foam box made of polypropylene plastic foam materials and then sealed, and the outer layer is a common carton with a trademark; the bacteriostatic fresh-keeping water-absorbing pad contains a water-absorbing bacteriostatic compound (3) for transportation; according to the packaging method, temperature control, bacteriostasis, drying and air permeability are achieved, the fresh-keeping effect on the litchis is effectively achieved, and the method is low-carbon, environmentally friendly, simple, efficient and high in generalization performance.

The utility model discloses a plastic foam wire cutting machine, which belongs to the technical field of plastic foam processing and comprises a cutting table, a support is fixedly connected to the middle of the top of the cutting table, an upper guide wheel is rotatably connected to one side of the support, a cutting wire is arranged on the upper guide wheel, and a driving device for driving the cutting wire is arranged on the cutting table. A positioning frame is arranged at the bottom of the cutting table, a lower guide wheel is rotationally connected to the positioning frame, a hydraulic telescopic rod is fixedly connected to the top of the inner side of the support, a driving frame is fixedly connected to the bottom end of the hydraulic telescopic rod, and an abutting rod is fixedly connected to the bottom end of the driving frame. According to the plastic foam cutting device, plastic foam needing to be cut can be well propped against, so that follow-up cutting is facilitated, continuous linear cutting can be carried out only by changing the rotating direction of an output shaft of a driving motor through the arranged rotating wheel and the driving motor, and the using effect of the cutting device is improved.

The utility model discloses a plastic foam trepanning device, which relates to the field of plastic foam processing equipment and comprises a working table, plastic foam is placed on the working table, an L-shaped positioning plate is fixedly mounted on the working table, a movable clamping plate is mounted on the working table in a sliding manner, and the L-shaped positioning plate and the movable clamping plate are both matched with the plastic foam. A fixed sliding rail is fixedly installed on the side face of the workbench, a lifting assembly is slidably installed on the fixed sliding rail, a movable assembly is slidably installed on the side face of the lifting assembly, and a hot cutter and an adsorption pipe are arranged on the bottom side of the trepanning tool base. According to the utility model, the fixed sliding rail, the lifting assembly and the movable assembly are used for controlling the trepanning tool seats to move, so that the hot cutter is driven to freely move on the plastic foam, different holes are conveniently and quickly cut, meanwhile, different numbers of the trepanning tool seats can be arranged, the trepanning speed is adjusted, and the trepanning efficiency is improved. The effect of forming a plurality of holes at a time is achieved.

The utility model belongs to the technical field of ballastless tracks, and particularly relates to a roadbed double-block type ballastless track structure. Comprising a steel rail, a fastener, a double-block sleeper, a roadbed slab and a base plate, the base plate is divided into a plurality of base units, each base unit is provided with integer roadbed slabs, and expansion joints are reserved between the base units; closed-cell polyethylene plastic foam board caulking is arranged in the expansion joint, and caulking material sealing layers are arranged on the top face and the two sides of the expansion joint. A dowel bar is arranged at the expansion joint between the adjacent base units, the dowel bar is divided into a fixed section and a sliding section, the fixed section is fixedly connected with the base unit on one side of the expansion joint, and the sliding section can be inserted into a guide hole of the base unit on the other side of the expansion joint in a sliding mode; the roadbed double-block type ballastless track structure is simple in structural form and clear in stress, the independent base unit and the roadbed slab structure are arranged in the longitudinal direction of the roadbed, and deformation, cracking and damage of the roadbed slab caused by differential settlement of the roadbed can be effectively avoided.

The utility model discloses a packaging carton of an integrated stable assembly structure, which relates to the technical field of packaging cartons and comprises a bottom plate a and a top plate b, a rear plate is folded on one side of the bottom plate a, and one side of the rear plate is connected with a side plate a. According to the packaging carton of the integrated stable assembly structure, the carton is assembled through multiple times of folding, the integrated structure improves the overall strength of packaging, the assembly process is simplified, damage caused by misoperation is reduced, the packaging carton is convenient to disassemble, the cyclic utilization rate of packaging is increased, and the packaging carton is suitable for popularization and application. The clamping groove a and the supporting plate b in the carton can wrap an internal motor, impact force in the transportation process is effectively absorbed, the motor is protected against damage, use of plastic foam can be reduced, the carton is completely made of recyclable or degradable environment-friendly materials, it is ensured that the package can be effectively recycled after being used, and burden on the environment is reduced.

The invention relates to the technical field of foamed plastic recycling and discloses a foamed plastic leftover material recycling and smashing device and method.The foamed plastic leftover material recycling and smashing device comprises a base, the end face of the base is fixedly connected with a frame, the end face of the end, away from the base, of the frame is fixedly connected with a feeding pipe, and the end face of the end, away from the feeding pipe, of the frame is fixedly connected with a discharging pipe; an engine is fixedly connected to the surface of the side, away from the frame body, of the base, and an inner motor is fixedly connected to the inner wall of the frame body. When the foam plastic recycling device is used, foam plastic needing to be recycled is poured into the feeding pipe, at the moment, motors inside and outside the extrusion component are started, a transverse shaft is driven to operate along the inner wall of the material distribution plate, meanwhile, an extrusion sector plate is driven to operate, and the extrusion sector plate and the material distribution plate distribute and extrude the plastic foam entering the extrusion sector plate; the plastic products with smooth surfaces are extruded together, become rough and are pushed to move downwards, and meanwhile, the dust blowing fan can conduct dust blowing treatment on the surfaces of the plastic foam products.

The utility model relates to the technical field of channel desilting pipelines, in particular to a desilting conveying pipeline which comprises a pipe body, an elastic air bag, an air conveying pipe, a bearing end and a screwing end. The two elastic air bags symmetrically arranged on the pipe body replace a traditional plastic foam floating platform floating mode, so that the sludge conveying pipe can float on the water surface, and meanwhile, compared with a common plastic foam floating platform, the sludge conveying pipe is small in occupied area and does not need to be disassembled frequently; the elastic air bag can be stored along with the pipeline after being deflated, operation is simpler and more convenient, meanwhile, the structural design that the bearing end and the screwing end are connected in a rotating and clamping mode is adopted, a traditional screw or hoop fixed connection mode is replaced, the pipeline can be disassembled and assembled without the help of tools, and connection operation between conveying pipelines is simplified.

The present invention relates to a plastic foam circulating water treatment system. It solves the problem of poor filtering effect of the circulating water of plastic foam in the prior art. It includes a drainage tank for receiving sewage and a circulating water tank for receiving treated purified water. The drainage tank is connected to the drainage end of the plastic manufacturing equipment, and the circulating water tank is connected to the water inlet end of the plastic manufacturing equipment. The drainage tank is connected to a pressure filtration device, and the output end of the pressure filtration device is connected to a diaphragm pump water treatment component. The purified water end of the diaphragm pump water treatment component is provided with a drip irrigation water treatment structure connected to the circulating water tank, and the sewage discharge end of the diaphragm pump water treatment component is connected to a sludge treatment device. The advantages of the present invention are: not only the filtering effect is good, but also the harmful impurities in the circulating water can be reduced.

The utility model provides an automatic discharging device of a plastic foam molding machine. Belongs to the field of foamed plastic production. According to the technical key points, the device comprises a conveying mechanism, the conveying mechanism comprises a belt conveyor, and supporting columns are fixedly connected to the four corners of the bottom of the belt conveyor; the guiding mechanism comprises a bottom plate fixedly connected to one side of the bottom of the belt conveyor, fixing plates are symmetrically and fixedly connected to the top of the bottom plate, a two-way screw is rotationally connected between the two fixing plates, and a second stepping motor is fixedly connected to one side of each fixing plate; the output end of the second stepping motor is fixedly connected with one end of the two-way screw, and the outer side of the two-way screw is symmetrically connected with connecting plates in a threaded mode. The utility model aims to provide an automatic discharging device of a plastic foam molding machine. The foamed plastic discharging device is used for solving the problem of low discharging efficiency caused by short-time stagnation of foamed plastic in the discharging process.

The utility model discloses a foam plastic machine which comprises a rack, a movable mold, a fixed mold and a guide rail, the guide rail is fixedly connected with the rack, the movable mold and the fixed mold are both in sliding connection with the guide rail, the movable mold is connected with an electric driving part, the electric driving part drives the movable mold to slide along the guide rail through a transmission mechanism, and the electric driving part drives the movable mold to slide along the guide rail. The movable mold has a mold opening state and a mold closing state under the driving of the electric driving part, the movable mold and the fixed mold are locked in the mold closing state, and the movable mold and the fixed mold are separated in the mold opening state. The foam plastic machine is stable in quality and high in control precision.

The utility model discloses a foaming pump press head demoulding structure relates to the field of plastic foaming pump production and processing. The structure is composed of 11 die plates of front mould and rear mould, matches with the auxiliary components such as inclined guide pillar, sliding block, cylinder, cylinder needle, buckle machine, adopts " push " type demoulding mode to replace traditional " pull " type operation. Through the step -by -step action of front -rear mould separation, product and water gap and rear mould separation, the stable demoulding of foaming pump press head is realized, the core pulling deformation problem caused by mould overheating, component slow cooling is effectively solved, the product defective rate is reduced, the raw material waste is reduced, and is applicable to the foaming pump press head demoulding procedure with convex structure.

The utility model relates to the technical field of heating foaming furnaces, and provides a heating foaming furnace for processing rubber and plastic heat insulation materials, which comprises a shell and an exhaust fan, the exhaust fan is arranged at the top of the shell, a heat exchange component is arranged outside the shell, telescopic cylinders are mounted at the top of the shell, and a conveying heating component is arranged in the shell. The maintenance assembly is arranged outside the shell, the conveying and heating assembly comprises a pair of outer frames, the outer frames are arranged on the two sides outside the shell, a pair of conveying rollers are rotationally connected into the outer frames, driving rollers are rotationally connected to openings in the two sides of the shell and controlled by a motor to rotate, and a plurality of inner rollers are rotationally connected into the shell. According to the technical scheme, the problems that in the prior art, a common rubber and plastic foaming furnace is not provided with a corresponding waste gas recycling device, waste gas generated in the production process is directly discharged into air to cause air pollution, and meanwhile, a corresponding closed heat preservation door is not arranged in the production process, and a large amount of heat of the device is lost are solved.

The utility model discloses a plastic foam strength detection device, which belongs to the technical field of detection equipment, and comprises a clamp, the clamp comprises a left block and a right block, the right block is provided with a positioning assembly, the positioning assembly comprises a fixed block, a connecting block and a sliding block, the fixed block is fixedly arranged on the right block, a cavity is formed in the fixed block, and the connecting block is connected with the sliding block. A cavity is formed in the left block, the connecting block slides in the cavity, a guide groove is formed in one side of the cavity, the sliding block slides in the guide groove and is fixedly connected with the connecting block, an opening is formed in the end, close to the left block, of the cavity, and when the sliding block slides towards one side of the left block, the connecting block extends out of the opening. The device has the advantage that the detection accuracy of the device is improved.

This invention provides a method for safely and securely framing uniforms, such as those worn by athletes, so that they can be displayed for a long time without wrinkles or deformation, making them a valuable keepsake. [Solution] This method of framing a uniform in a picture frame is used for framing the uniform of a talent or athlete. The frame is made of a decorative thin plywood backing board, and a lightweight plastic foam 3 to 20 mm thick or a cardboard mold 2 to 3 mm thick is inserted inside the torso and sleeve parts of the uniform. The molded uniform is then secured to the framed uniform using 4 to 8 screw-type roughly Z-shaped transparent resin fasteners at the stable fixing points.

The utility model relates to the technical field of plastic foam processing equipment, in particular to an R290 type central air conditioner with hot water floor heating, which comprises a base, the inner wall of the base is slidably clamped with the outer wall of a sliding part, one side of the sliding part is fixedly connected with one side of a rotating part, and the outer wall of the rotating part is fixedly welded with the outer wall of one side of a fixed part. The inner wall of the rotating piece movably abuts against the outer wall of the floor heating piece, the inner wall of the base is movably connected with the outer wall of the rotating piece in an inserted mode, when the hot water floor heating pipe is installed, the floor heating hot water pipe is laid on the sliding blocks, the distance between the sliding blocks is adjusted to be appropriate, the rotating sleeve is rotated, the rotating sleeve drives the connecting block to rotate, and the floor heating hot water pipe is installed. The bottom of the connecting block abuts against the top of the fixing block, a bolt is inserted into a through hole and screwed into a threaded hole, the connecting block is fixed, a hot water floor heating pipe is sleeved and fixed through a rotating sleeve, people can install the hot water floor heating pipe more conveniently, and the installation speed of people is effectively increased.

The invention provides a microcellular foaming master batch composition for a controlled weight loss and controlled microcellular foaming plastic product. The microcellular foaming master batch composition comprises a thermoplastic carrier plastic, a two-component microcellular foaming agent comprising a gas carrier and an acid carrier, an amphiphilic stabilizer selected from a fatty acid modified salt, glyceryl stearate or a combination thereof, and an adsorption dispersant. The master batch composition is suitable for a wider processing temperature range to meet the requirements of producing various base material plastic foaming products, and allows controllable microcellular foaming in plastic products, so that the microcellular foaming plastic product which is lighter in weight, good in mechanical strength, low in cost and high in flexibility and meets the requirements of laws and regulations can be easily manufactured.

The utility model belongs to the technical field of injection molding equipment, and particularly relates to an automobile seat plastic foam injection molding device which comprises a lower die holder and an upper die holder, a positioning seat is arranged in the lower die base and wraps the outer side of the die core, a fluid cavity is formed in the lower die base so that a cooling medium can be injected into the fluid cavity to achieve the cooling effect on a product, and cooling treatment of an inner layer and an outer layer is achieved through cooperation of the fluid cavity and a cooling chamber; a boss is arranged at the upper end of the positioning seat, a containing groove is formed in one side of the positioning seat, and a scraping plate which scrapes the outer wall of a mold core of the upper mold seat to scrape impurities on the surface of the mold core is arranged at the upper end of the containing groove so that the impurities can be temporarily stored in the containing groove to facilitate follow-up centralized treatment. According to the utility model, an inner-outer double-layer cooling effect can be formed, so that the cooling time of a product is shortened so as to improve the efficiency, the outer surface of the upper mold core can be automatically cleaned in the mold opening process, residual impurities can be removed at the first time so as to prevent agglomeration from forming dirt, and the subsequent cleaning operation is facilitated.

The utility model relates to the technical field of boat fenders, and discloses an anti-collision bulletproof boat fender for an official business boat, which comprises a fixed frame, and a first protection component is arranged on the right side of the fixed frame. The bulletproof and anti-collision effects are achieved through the first elastic armor and the second elastic armor, when the first elastic armor and the second elastic armor are collided, deformation is generated between the first elastic armor and the second elastic armor, buffering and shock absorption are achieved under the action of the rubber columns, the plastic foam balls and the first air bags, the anti-collision effect is improved, and the service life of the bulletproof and anti-collision device is prolonged. Meanwhile, when the fender is hit by bullets, the bullets can be unloaded, so that the service life of the fender is prolonged, after the first elastic armor and the second elastic armor are damaged, the stable effect of the boat is kept under the action of the two sets of second air bags, and therefore it is avoided that after the plastic foam ball and the first air bag are damaged, the boat cannot be damaged. And the ship loses the balance effect and shakes due to leakage, and the bulletproof effect is continuously achieved on the second protection assembly.

The invention discloses a preparation method of an atomic oxygen erosion resistant rigid plastic foam material, which comprises the following steps: preparing a polymer, an initiator, a modifier, a foaming agent, a cross-linking agent and a nucleating agent into a material mixed solution according to a certain mass ratio, carrying out polymerization reaction, and heating and foaming to obtain the atomic oxygen erosion resistant rigid plastic foam material, the polymer is a mixture containing an acrylic acid compound, an acrylonitrile compound and a copolymerization reactant, and the modifier comprises polyhedral oligomeric silsesquioxane. The rigid plastic foam material obtained by the preparation method has good atomic oxygen resistance, and can be applied to the fields of aerospace and atomic oxygen environment resistant materials.

The utility model discloses a rubber and plastic foam board cutting device which comprises a rack, a motor, a feeding assembly, a roller, a pressing roller, a first rotating roller, a second rotating roller, a cutting assembly and a discharging table. The output end of the motor is coaxially connected with a first chain wheel, the first chain wheel is in transmission connection with a second chain wheel through a first chain, and the second chain wheel is arranged at the end, close to the motor, of the first rotating roller; the second rotating roller is arranged right above the first rotating roller in parallel, a first gear and a second gear are arranged at the ends, close to the motor, of the first rotating roller and the second rotating roller respectively, the first gear is meshed with the second gear, and a third chain wheel and a fourth chain wheel are arranged at the ends, away from the motor, of the first rotating roller and the roller respectively. The third chain wheel is in transmission connection with the fourth chain wheel through a second chain, and the pressing roller is rotationally arranged above the discharging table and is parallel to the roller, the first rotating roller and the cutting assembly. The foam board cutting device can achieve automatic pushing and cutting of foam boards, reduces labor cost, and is high in safety, high in efficiency, easy to operate and high in flexibility.

The invention provides a ganoderma strain SM07 and application thereof. The preservation number of the ganoderma strain (Ganoderma sp.) SM07 is CCTCC (China Center for Type Culture Collection) NO: M 20251816. The bacterial strain is developed in aerial hypha, rapid in hypha growth and high in hypha kinking property, straw can be used as a raw material to produce the biomass lining, and the biomass lining package is pure white and smooth in appearance, light and attractive in texture, has the loose and porous structural characteristic, is excellent in air permeability, can provide good buffering protection and can be used for preparing the biomass lining. And the quality stability in the tobacco leaf storage process is guaranteed. Besides, the environment-friendly characteristic is outstanding, the smoke biomass lining can be degraded by microorganisms in soil and converted into soil organic matter after being used, resource cyclic utilization of agricultural by-products is achieved, traditional plastic foam can be replaced, the problem of white pollution is avoided, and wide market prospects are shown in the field of green packaging.

The utility model relates to the field of three-dimensional cutting machines, in particular to an integrated three-dimensional cutting machine which comprises a vertical cutting frame body, a cutting frame walking guide rail, a vertical cutting frame lifting guide rail, a transverse and vertical integrated cutting assembly and a carrying assembly. The transverse and vertical integrated cutting assembly comprises a vertical cutting structure. A transverse cutting structure is arranged at the end part of one side of the vertical cutting structure; a transverse and vertical cutting vibration mechanism is arranged at the lower end part of the transverse cutting structure; workpieces are placed through the moving trolley, the vertical cutting structure and the transverse cutting structure are driven by the vertical cutting frame body to cut foam plates, and therefore the problem that in the workpiece cutting process, due to the fact that most of existing integrated three-dimensional cutting machines are provided with large cutting line structures, the sizes of plastic foam plates to be cut are large, and the cutting efficiency is high is solved. The problems that the overall large cutting line is long, the occupied area and the maintenance cost of the cutting line are increased, and the use cost of an integrated three-dimensional cutting machine is increased are solved.

The present invention belongs to the field of plastic foam processing and crushing technology, and in particular to a foam processing and crushing device. In view of the fact that the existing foam crushing devices proposed in the background technology mostly adopt a single-stage crushing structure, which has the problems of low efficiency, uneven crushing particles, high energy consumption, etc., the following scheme is proposed, including a machine body, wherein the internal ends of the machine body are respectively provided with a pushing chamber and a foam plate crushing chamber, and the interior of the machine body is provided with a foam pre-crushing mechanism, and a connecting rod is provided on the outer wall of the foam pre-crushing mechanism, and the outer wall of one end of the connecting rod is provided with a foam secondary crushing mechanism. The present invention solves the problems of low efficiency, high energy consumption, and easy clogging of traditional equipment through innovative designs such as double-stage crushing, linked feeding, negative pressure conveying, and gradually shrinking crushing gap. While improving the crushing uniformity and processing efficiency, it achieves the comprehensive performance of compact structure and stable operation, and is suitable for various plastic foam recycling scenarios.

After three or four abrasive rock tumbling steps with successively finer and finer adhesive, the rocks are tumbled with pieces of an elastomer, for example plastic foam. The plastic foam may be polyurethane foam. The result is a higher polish than could be achieved by prior abrasive and finishing approaches. A polishing compound may be embedded in the polyurethane foam. Advantages of doing this include that the user gets multiple polishings out of the material base, there is less breakage of the rocks during tumbling process, and the tumbling mix will not “sludge up” if the user were to let the barrel sit after tumbling.

A layered composite includes: a foam core made of a plastic foam; and a first cover layer and a second cover layer, between which the foam core is arranged, wherein at least one of the cover layers is a fiber material layer containing reinforcement fibers embedded in plastic. A plastic resin fills intermediate spaces between the cover layers in and around the foam core and holds the cover layers and the foam core together. The layered composite includes a fire protection layer made of a composite material on a side of the fiber material layer facing away from the foam core. The composite material contains hollow micro-bodies made of ceramics or glass in a plastic material.

The utility model relates to the technical field of foam pumps, and discloses a folding spring all-plastic foam pump which comprises a pipe body, the top of the pipe body is in threaded connection with a connector, the connector is connected with a discharging port, a sealing mechanism is arranged in the connector, the sealing mechanism comprises a threaded ring, and the threaded ring is in threaded connection with the connector. The threaded ring is installed at the top of the discharging port, the inner wall of the threaded ring is in threaded connection with a first screw rod, the first screw rod extends towards the inner end and the outer end respectively, a rotary knob is fixedly installed at the top end of the first screw rod, a sealing block is installed at the inner extending end of the first screw rod, and a through opening is formed in the other end of the sealing block; according to the foam pump, the sealing block is installed at the inner extending end of the first screw rod, and the through opening is formed in the sealing block, so that the position of the through opening of the sealing block can be replaced according to needs, and the situation that the foam pump cannot discharge foam due to the fact that impurities enter the foam pump from the discharging opening is prevented.

The invention discloses a drainage device and application thereof in building construction, and relates to the technical field of building construction.The device comprises a supporting frame, a sewage tank, a waste tank and an anti-blocking assembly, the supporting frame is rotationally connected with a rotating cylinder through a bearing, a filter cylinder is arranged on the rotating cylinder, the sewage tank is arranged below the filter cylinder, and the waste tank is arranged below the filter cylinder; a supporting frame is fixedly connected to the side wall of the sewage tank, a waste tank is fixedly connected to the side wall of the sewage tank, a blow-off pipe is arranged on the side wall of the sewage tank, and an anti-blocking assembly is arranged above the rotating cylinder and used for preventing some foams and stones from blocking filter holes of the filter cylinder. According to the anti-blocking assembly, through cooperation of vibration and water flow, foam stones and the like are effectively prevented from blocking filter holes, then through cooperation of a spiral plate, some plastic foam is cleaned into a waste box for centralized treatment, and the cleaning task load of follow-up workers is greatly reduced.