91results about How to "With thermal insulation function" patented technology

The invention relates to a preparation method for environment-friendly type tile stocks. The preparation method is characterized in that: besides wood pulp fibers, a plurality of different fibrous raw materials and functional additives are added in the stuff of the tile stocks in the preparation process; and the environment-friendly type tile stocks are prepared through the operations of beating, paper making, squeezing, drying and reeling. Compared to common wallpaper, the tile stocks provided in the invention have the following advantages: the tile stocks have the functions of energy saving and heat insulation and can release negative ions and far infrared rays at the same time, thereby purifying air as well as benefiting health of human bodies.

The invention discloses an integral type thermal insulation building, which belongs to the technical field of building engineering. The problem to be solved is to provide the integral type thermal insulation building. The adopted scheme is that the integral type thermal insulation building at least uses one of an inorganic thermal insulation structure layer and an inorganic thermal insulation layer, wherein the inorganic thermal insulation structure layer is formed by combining one or two of inorganic thermal insulation load-bearing concrete and inorganic thermal insulation load-bearing building blocks; and the inorganic thermal insulation load-bearing concrete comprises the following components in a mixing weight ratio (kg / m<3>) of concrete composite light bone admixture to cement to sandto stone to porcelain granule to fly ash to water to concrete admixture of (6-225):(200-800):(300-700):(500-1,600):(150-650):(10-600):(80-400):(0.1-200). The integral type thermal insulation buildingcan be widely applied to the technical field of buildings.

The invention discloses a wall fireproof insulating material, comprising, by weight, 40-60 parts of cement, 30-40 parts of closed-cell expanded perlite, 20-30 parts of vitrified glass beads, 10-30 parts of glass fiber, 10-20 parts of sepiolite powder, 5-15 parts of a fiber, 15-25 parts of a silicate, 5-10 parts of mica powder, 2-8 parts of lightweight ceramsite, 5-15 parts of quartz sand, 3-8 parts of magnesium oxide, 5-15 parts of asbestos, 4-10 parts of heavy calcium carbonate, 3-10 parts of latex powder, 2-6 parts of a flame retardant, 1-5 parts of a mildew preventive, 3-8 parts of a foaming agent, and 60-80 parts of deionized water. The wall fireproof insulating material has simple formulation and is convenient to prepare, and has good fireproof and insulating properties.

The invention provides a modified asphalt waterproof coiled material with a heat insulation function and a preparation method thereof. The coiled material comprises a bottom film 1, a first modified asphalt layer 2-1, a base layer 3 and a second modified asphalt layer 2-2, and is characterized by also comprising a coverage layer 4, wherein the first modified asphalt layer 2-1 and the second modified asphalt layer 2-2 are sequentially arranged on the upper surface of the bottom film 1; the base layer 3 is arranged between the first modified asphalt layer 2-1 and the second modified asphalt layer 2-2; and the coverage layer 4 is arranged on the upper surface of the second modified asphalt layer 2-2. The surface coverage layer is prepared by proportioning raw materials for a film forming agent, synthesizing the film forming agent and preparing a coverage layer material. The performance of the modified asphalt waterproof coiled material is increased by changing the category and the proportion of a filling material in the raw materials in a waterproof structural layer, so that the modified asphalt waterproof coiled material has extremely high waterproof performance and the heat insulation function and is an ideal building energy-saving product.

The invention discloses a water-based nano-coating for thermal insulation of building walls, and relates to the technical field of nano-coatings. The water-based nano-coating prepared by the invention consists of a surface coating, an intermediate coating and a primer coating, and is suitable for using water as a diluting solvent. Improve the safety of use; and the surface coating formed by the surface coating has the functions of solar heat reflection, waterproof, and self-cleaning; Anti-corrosion function, so as to meet the requirements of the building wall for the use of coatings, ensure the quality of the coating, and prolong the service life of the coating.

The invention discloses an aluminum alloy welding-free and roofing-tile solar collector, wherein, a collecting board is integrated with a heat-exchanging container; the solar collector is a section material with a semi-circle and tubular-shaped transect, the upper part of which is cambered and the lower part of which is flat, and connected with a plurality of aluminum alloy pipes which are connected with each other in parallel; the sunny side of the solar collector is coated with a selective heat absorption coating; water pipes which are arranged at the two sides of the solar collector and connected with the pipe section material are metal water pipes that are divided into an upper part and a lower part and has a pipe section material interface; the pipe section material and the water pipe are connected firmly by bolts and sealed by a sealant, and the upper part and the lower part of the water pipe are connected firmly by the bolts and sealed by the sealant; a glass cover plate is arranged on the pipe section material and the water pipe; a thermal insulation layer is arranged below the pipe section material and the water pipe; borders enclose the solar collector into a sealed whole at the periphery and extend out of regulas in all directions on the plane of the glass cover plate; the regulas on the left and right rise upwards so that the solar collection has the function of a large insulation roofing tile. The solar collector has the advantages of high heat collection efficiency, low price and long service life, basically requiring no maintenance, and being integrated with buildings and beneficial to scale production.

The invention relates to a heat-insulation flame-retardant asphalt shingle and a preparation method thereof. The asphalt shingle comprises a glass fiber body, a modified asphalt coating, a facing material layer and an isolation material layer; the modified asphalt coating adopts the following raw material formula in percentage by weight: 30 percent to 50 percent of 10# petroleum asphalt, 5 percent to 10 percent of 90# road asphalt, 1 percent to 3 percent of a polyolefin processing modifier, 15 percent to 25 percent of magnesium hydroxide, 6 percent to 12 percent of rubber powder and the balance of filling; the facing material layer adopts the following raw material formula in percentage by weight: 30 percent to 40 percent of hollow ceramic microbeads, 2 percent to 5 percent of powder butadiene styrene rubber and the balance of color sand. The asphalt shingle disclosed by the invention has excellent fireproof, flame-retardant, heat insulation and heat preservation effects, aging resistance and low flexibility, has both decoration performance and attraction performance and is low in cost.

The invention discloses a movable cabinet freezer for a cold chain. The movable cabinet freezer comprises an insulation heat-preservation box body, a compressor refrigerating module; a cold source supply device, a temperature sensing and transmission module and an electric power module, wherein the insulation heat-preservation box body is provided with a storage chamber for holding articles; the compressor refrigerating module is used for providing the refrigerating capacity; the cold source supply device is arranged on the periphery of the storage chamber and used for alleviating the temperature variation of the storage chamber within a preset time, and when the compressor refrigerating module is not operated, the current temperature of the storage chamber can be maintained as far as possible; the temperature sensing and transmission module is used for sensing the current temperature of the storage chamber and transmitting a temperature signal; the electric power module is used for supplying the electric power; a processor of a control module is used for receiving and processing the temperature signal, a temperature management module is used for calculating the electric power needed for reducing the temperature of the storage chamber to the preset temperature range according to the current temperature of the storage chamber and the residual electric power of the electric power module, then the electric power module supplies the electric quantity corresponding to the electric power to the compressor refrigerating module, and the compressor refrigerating module is started.

The invention discloses a novel corner constructional column with a building block-concrete structure, and belongs to the technical field of building. A constructional column cavity (4) is formed by connecting two self-insulating building blocks at a right angle and stacking, and one end of each self-insulating building block has a right-angle structure; steel bars are arranged and concrete is poured in the constructional column cavity (4); and the inner side face of the right-angle structure is provided with an insulating layer. The structure is constructed while thermal insulation property is achieved, construction processes are reduced, a template is saved, construction efficiency is improved, and construction cost is reduced.

The invention discloses a method for preparing a joint sealant by utilizing construction wastes, i.e. building rubbish. The method comprises the following steps: taking the building rubbish as one part of a raw material and directly preparing the heat-insulating, mould-proof, moth-proof and anti-permeable joint sealant with low cost and environment friendliness by utilizing the existing sealant production line. The joint sealant has the joint sealing and bonding double functions, is adjustable in color and is convenient to construct.

The invention relates to a multifunctional emulsion paint as well as a preparation method and application thereof. The emulsion paint comprises the following components in parts by weight: 2-50 partsof resin emulsion, 0.1-10 parts of a graphene material, 0.3-3 parts of a graphene material dispersing agent, 0-25 parts of a filler, 16-30 parts of pigment, 0.1-0.5 part of a wetting agent, 0.1-0.5 part of a defoaming agent, 0.5-3 parts of a thickening agent, 3-4.5 parts of coalescing agent and 0.1-0.5 part of a preservative. The multifunctional emulsion paint provided by the invention not only has a plurality of functions such as a far infrared function, a bacteriostatic function, an antistatic function, and a heat insulation function, but also has greatly improved freeze-thaw resistance, weather aging resistance and cohesiveness compared with those of a traditional emulsion paint.

The invention provides a roof ecological heat preservation and waterproofing coiled material and belongs to the technical field of greening and environmental protection engineering. The roof ecological heat preservation and waterproofing coiled material orderly comprises an aluminized film layer, a foamed resin layer, a root inhibition layer and a bonding layer. The aluminized film layer is provided with multiple through holes with diameters of 1-2mm. One end surface of the foamed resin layer close to the aluminized film layer is provided with multiple loading grooves. The loading grooves arefilled with coated plant seeds and compound fertilizer. The coated plant seeds are prepared through coating plant seeds with a coating material. The coating material comprises, by weight, 10-15 partsof bentonite, 3-5 parts of ammonium molybdate, 1-2 parts of Emistim C, 8-12 parts of sodium alginate, 3-5 parts of an insecticide, 3-5 parts of a bactericide and 70-100 parts of water. The roof ecological heat preservation and waterproofing coiled material has a high plant seed germination rate. The plant has effects of greening, durst removal, heat preservation and heat insulation.

The invention discloses a side wall double-sided over-constrained movable foldable house, and relates to the technical field of foldable houses. The foldable house comprises main supporting frames, shear fork mechanisms, ceiling supporting devices, floor supporting devices, side plate supporting devices and vertical supporting devices. After the device is folded, all components are folded into themain supporting frames, so that space waste is greatly reduced; and meanwhile due to the fact that the size is small after the device is folded, maneuvering transportation can be carried out along with a vehicle; the device is easy to control, and unfolding and folding of all plates can be completed without manual work; according to the device, the double-sided over-constrained shear fork mechanisms are arranged between stand columns at the two ends, so that the overall rigidity of a system is greatly improved; according to the device, by increasing the number of unfolding stages, an ultra-large unfolding space is obtained, and the problem that the unfolding ratio of an existing foldable house is too small is solved; and besides, replaceable sealing rubber strips are arranged at the joints of all components of the device so that complete sealing of the space after unfolding can be achieved, and the sealing problem of the existing foldable house is solved.

The invention discloses an embedded-type combined wall, comprising a wall board; a top wing plate which is vertical to the wall board is integrally arranged at the top part of one end of the wall board; a middle wing plate which is arranged in parallel with the top wing plate is arranged at the middle part of the wall board; the wall board is integrally shaped like an English character F; the end face of the top surface of the wall board is provided with a concave hole; another raised line which is embedded, spliced and matched with another same wall board is arranged on the end face of the bottom of the wall board; two wall boards are arranged at intervals so as to form the combined wall; wherein relative to the other wall board, one board is arranged vertical to an mirror image and then is arranged horizontal to the mirror image; a mounting pre-remained hole is arranged on each wall board. The surface strength of the wall board reaches 12MPa, the horizontal impact load resistance and destroy resistance property are improved, the integrative wall board having thermal-insulation function is formed finally. After the wall construction of the embedded-type combined wall is finished, the facing decoration can be directly executed on the wall board without plastering on the wall surface, the power and material spent on plastering in and out the wall are saved, in this way, the construction cost is reduced.

The invention relates to a seal primer and a preparation method thereof, in particular to a seal primer special for heat-insulating waterproof paint and a preparation method of the seal primer. The seal primer special for the heat-insulating waterproof paint and the preparation method of the seal primer aim at solving the problems that when an existing asphalt felt waterproof roll is used as a roof waterproof material, ageing cracking occurs, a waterproof layer fails, and consequently a roof leaks. The seal primer special for the heat-insulating waterproof paint is prepared from deionized water, a dispersing agent I, a dispersing agent II, filler, a defoaming agent I, pigment, a thickening agent premix, emulsion, a defoaming agent II, a film-forming agent and a mould inhibitor by weight. The preparation method includes the steps that firstly, weighing is carried out; secondly, slurry is prepared; thirdly, final mixing is carried out, and the seal primer special for the heat-insulating waterproof paint is obtained. The seal primer special for the heat-insulating waterproof paint and the preparation method have the advantages that the seal primer special for the heat-insulating waterproof paint has the excellent properties of high strength, large elongation, high and low temperature resistance, ageing resistance, large bonding force and good extensibility, construction is easy and convenient, and the construction period is short. The preparation method is mainly used for preparing the seal primer special for the heat-insulating waterproof paint.

The invention discloses a heat preservation decoration plate and a manufacturing method thereof. The heat preservation decoration plate comprises a heat preservation layer and a decoration layer arranged on one outer side surface of the heat preservation layer, wherein the heat preservation layer and the decoration layer are integrally formed; the heat preservation layer comprises the following raw materials in parts by weight: 40-50 parts of sepiolite powder, 10-15 parts of crushed crude pearlite, 30-40 parts of glass powder, 5-10 parts of bentonite, 2-3 parts of calcium carbonate, 0.1-1 part of charcoal, 2-3 parts of sodium phosphate, 2-3 parts of silicon carbide, 2-3 parts of borax and 25-35 parts of water. According to the technology that the decoration layer and the heat preservation layer are integrally pressed into a blank and then the blank is burnt, the decoration layer and the heat preservation layer are integrally combined, so that the two layers are firmly connected, and the heat preservation decoration plate has heat preservation and heat isolation functions and also achieves an effect of decorating an external wall; furthermore, raw materials selected for the heat preservation layer and the decoration layer are matched, so that the heat preservation decoration plate is light in mass and better in fireproofing and heat preservation and isolation effect.

The invention discloses a gypsum-based internal wall plastering material with heat preservation and heat insulation function. The plastering material has light weight, high bond strength, strong water resistance, significant heat preservation and heat insulation function and good air permeability, can be applied for plastering various internal walls, leveling the internal walls and providing excellent heat preservation and heat insulation function. The plastering material has the following formula by weight percent: 0.30-0.50 percent of building gypsum powder, 0.05-0.15 percent of finely milled high-strength cement clinker, 0.40-0.60 percent of vitrification microsphere, 0.02-0.06 percent of polyphenyl particles, 0.08-0.16 percent of powdery starch adhesive and 0.01-0.02 percent of methylcellulose. The principle of the plastering material is as follows: two heat preservation and heat insulation construction aggregates of the vitrification microsphere and the polyphenyl particles are utilized to provide the heat preservation and heat insulation function; the finely milled high-strength cement clinker is utilized to provide strength and water resistance for the plastering material; and the powdery starch adhesive with high adding amount is utilized to improve the bonding strength of the plastering material.

The invention relates to a multi-functional template floor structural system for quickly building and a construction method thereof. The multi-functional template floor structural system is integrally formed as follows: a bottom board is made of a metal material or an inorganic composite material, a triangular truss is fixedly or non-fixedly arranged on the bottom board, functional tubes are pre-arranged at the bottom of the upper surface of the bottom board, and / or the top of the upper surface of the bottom board, and / or functional tubes are post-arranged at the top of the lower surface of the bottom plate. The template floor is used as a bottom template of the floor, functional tubes are installed on the template floor and vertically distributed reinforced bars are bound onto the template floor, and then concrete is poured, and finally, cement mortar is used for leveling to form a functional floor. When the building is carried out by the method, 3-5 or 5-10 floors and a frame structure can be poured in one step on site, so that the building has a very good overall anti-seismic performance, the speed is fast and the cost is low.

The invention relates to a multi-functional quickly-constructed house die room plate structure system and a construction method thereof. The construction method of the multi-functional quickly-constructed house die room plate structure system has the following steps that: firstly, improved type die floor slabs are used as the bottom plates of die room plates, various kinds of required functional pipes are also installed on the bottom plates, and reinforcing steel bars with upper / lower distribution are bound; afterwards, rainwater collecting pipes and various kinds of other connecting pipelines are installed on the bottom plates in a reserved way, and improved type die wall plates are also installed in a covering way as the panels of the die room plates; then, after a certain hollow cavity with the long bottom plates / the short panels, which is in the shape of an inclined bag, is formed between the two plates, concrete is poured to the inside of the hollow cavity step by step in a concession way; the connecting switches of pipelines are also used for controlling combining components to connect various kinds of upper / lower-layer functional holes or pipes inside the die room plates at both symmetrical sides at the upper face or the lower face of a roof well; and finally, the concrete is filled at the closing-in positions of ridge lines, and the glands of ridge tiles are also fixed on the room panels at both sides of the ridge lines, so that an integral die room plate structure system can be formed.

The invention discloses a heat insulation and heat preservation composite film with an air purifying function and a preparation method of the heat insulation and heat preservation composite film. The heat insulation and heat preservation composite film comprises an inorganic fiber gridding cloth layer, a heat insulation and heat preservation composite layer, an adhesive layer and an air purification composite layer, wherein the inorganic fiber gridding cloth layer comprises glass fiber gridding cloth or basalt fiber gridding cloth or ceramic fiber gridding cloth or carbon fiber gridding cloth; the heat insulation and heat preservation composite layer comprises a plastic layer and a metal oxide coating; and the air purification composite layer comprises a microporous polytetrafluoroethylene film, a charcoal layer and a plastic layer film. The heat insulation and heat preservation composite film has an efficient air purification function, is capable of durably eliminating harmful substances such as benzene and formaldehyde in air, plays a role in protecting the health of a human body, has a molecule controlled release function, and has a series of advantages of controlling release speed and space concentration, prolonging service life, being simple in manufacture process, saving the production cost, playing roles of saving energy and reducing emission, and the like.

The invention relates to a portable activated water preparation device. The activated water preparation device comprises a cover, a small activated water generating device and a water holding device, wherein the cover and the small activated water generating device are mutually and closely connected into a whole through thread; the small activated water generating device and the water holding device can be mutually and closely connected into a whole through thread; and the cover, the small activated water generating device and the water holding device form a whole from top to bottom.

The invention discloses a preparation method for a heat insulation wall paint. The preparation method comprises the following steps of preparing a modified crylic acid microemulsion; mixing TiO2, shale micro powder and ZnO to obtain a mixture and then adding the mixture into 20-25wt% of water and mixing and ball-milling at room temperature; preparing an assistant mixed liquor, and mixing uniformly at room temperature; and putting the prepared mixed filler into a reaction kettle, and stirring rapidly so as to obtain the needed paint. The heat insulation wall paint has a strong adhesive force to matrixes such as walls, metals, wooden products and the like, can achieve the heat insulation purpose by coating the paint on the surface of matrixes by about 0.3-0.5mm, and is an ideal environment-friendly paint.

The invention relates to a heat-insulation flame-retardant lightweight wall tile and a preparation method thereof. The wall tile comprises a glass fiber body, a modified asphalt coating and a facing material layer; the modified asphalt coating adopts the following raw material formula in percentage by weight: 40 percent to 60 percent of 10# petroleum asphalt, 3 percent to 5 percent of 90# road asphalt, 1 percent to 3 percent of a polyolefin processing modifier, 15 percent to 25 percent of magnesium hydroxide, 6 percent to 12 percent of rubber powder and the balance of filling; and the facing material layer adopts the following raw material formula in percentage by weight: 30 percent to 40 percent of hollow ceramic microbeads, 2 percent to 5 percent of powder butadiene styrene rubber and the balance of color sand. The wall tile disclosed by the invention has excellent corrosion resistance, waterproofness and aging resistance, high tensile strength and excellent cutting processing performance, is simple to construct, is attractive and elegant, particularly has excellent heat insulation and flame retardance performance and implements environmental-friendliness, energy conservation, safety and reliability of an external wall decoration material.

The invention discloses a novel building assembly structure. The novel building assembly structure comprises a building wall and a building floor slab arranged on the building wall, and the novel building assembly structure is characterized in that the building wall is made of a plurality of brick bodies, the brick bodies are provided with through holes arranged in the height direction, the through holes are internally filled with cement to form a bearing beam column, and groove holes used for accommodating water pipelines or electric pipelines or gas pipelines are formed in the brick bodies.The through holes can reduce the weight of the brick bodies and make the masonry wall have the function of heat insulation and heat preservation; reinforcing steel bars are inserted in series into through holes and groove holes produced after the brick bodies are stacked according to the load-bearing demand of a house, then hole gaps with positions of the reinforcing steel bars inserted in seriesare filled with concrete or adhesive materials, at the same time, the filled concrete or the adhesive materials cannot be seen on the wall stacked by the brick bodies, and the house reinforcing steelbars inserted in series in the groove holes of the brick bodies according to the demand form a net cage type frame structure invisible in the house; and the groove holes can further be used for placing pipelines, pipeline grooves are not additionally opened during masonry, and masonry time is further saved.

The invention discloses a clean utilization method of coal slime generated in a coal mining process. The clean utilization method comprises the following steps: weighing coal slime, brucite fibers, borax, Sb2O3 and bis(2-ethylhexyl) phthalate; mixing the coal slime and the borax, and then carrying out crushing to obtain a mixture A; adding the brucite fibers, the Sb2O3 and the bis(2-ethylhexyl) phthalate into the mixture A, and carrying out uniform mixing to obtain a mixture B; granulating the mixture B to obtain raw material balls; and pre-roasting the raw material balls at 400-500 DEG C for30 minutes, and alternately roasting the raw material balls at 800-1000 DEG C and 1000-1100 DEG C twice to obtain ceramsite. According to the method, the ceramsite is prepared from the coal slime, theceramsite with excellent functions is prepared by utilizing the characteristics of the coal slime, and the prepared ceramsite is good in mechanical property and good in heat insulation effect, can beused as coarse aggregate or fine aggregate to be applied to a preparation process of concrete, and has a wide application prospect.

The invention relates to a seal primer specially used for heat-insulating and waterproof coating, and a preparation method of the seal primer, in particular to a seal primer specially used for heat-insulating and waterproof coating of an aging asphalt roofing, and a preparation method of the seal primer, aiming at solving the problems that as a roof water-proofing material, the existing asphalt felt waterproof coiled material has phenomena of premature aging and cracking, so that a waterproof layer loses efficacy and roofing leakage is further caused. The seal primer is prepared from deionized water, a dispersing agent, a defoaming agent I, filler, pigment, polymer emulsion, a defoaming agent II, a film-forming agent, a mildew preventive and a thickening agent component, wherein the thickening agent component is prepared from a thickening agent and a solvent of the thickening agent. The preparation method comprises the steps of 1, preparing slurry; 2, preparing primer. The seal primer specially used for the heat-insulating and waterproof coating of the aging asphalt roofing is high in strength and elongation, high and low temperature-resistant, aging-resistant, strong in binding power and good in extensibility.

The invention discloses a manufacture method of a pan stand. The manufacture method includes the steps that firstly, an upper cover plate and a lower cover plate of the pan stand are formed through molds correspondingly; secondly, multiple corner sheets are installed on the upper cover plate, and the upper cover plate is installed on the lower cover plate, wherein a hollow thermal insulation cavity is formed between the upper cover plate and the lower cover plate; thirdly, stainless steel material metal is sprayed to the surface of the pan stand through a cold spraying process to form a stainless steel material metal coating; and fourthly, high-temperature-resistant ceramic is sprayed to the surface of the stainless steel material metal coating to form a high-temperature-resistant ceramiccoating. According to the manufacture method, the upper cover plate and the lower cover plate of the pan stand are made of cold plate materials, cold spraying is conducted on the hollow structure, formed by the upper cover plate and the lower cover plate, through stainless steel materials, the stainless steel metal coating is formed on the surface of the pan stand, spraying of the high-temperature-resistant ceramic coating is conducted on this basis, and therefore while it is ensured that the pan stand has thermal insulation and heat preservation functions, use of the stainless steel materialsis greatly reduced, and the manufacture cost of the pan stand is saved.

The invention relates to a fabric concrete block and a preparation method. The block has high crush resistance strength, no holes and pitted surfaces, good appearance quality and strong wall adhesionability, and can restrain wall cracks and prolong wall life to enable the block is matched with the service life of a main structure. The block comprises four L-shaped angle shafts arranged to form arectangular barrel corner angle, a fabric shell which is fixed outside the L-shaped angle shafts in tension winding mode and form a rectangular barrel structure and filler, wherein the fabric shell isfilled with the filler.. The preparation method comprises the steps that 1, the preparation of the fabric shell is carried out; 2, the fabric shell is filled with the filler, pressing and concrete vibrating are carried out to enable the filler to be compact, so that the fabric adheres to the inner wall of a steel mould; and 3, maintenance is carried out for molding, maintenance is carried out until the initial solidification of the filler is completed, the steel mould is removed, maintenance is carried out until the filler is fully solidified, and the block production is completed.

The invention relates to the technical field of optical cable cross connecting boxes, in particular to a double-layer optical cable cross connecting box with a heat insulation function. The box comprises an outer box body and an inner box body, the inner box body is positioned in the outer box body, a box door is hinged to the front surface of the outer box body through hinges, sealing mechanisms are arranged on two sides of the front surface of the inner box body, and a heat insulation mechanism is arranged on the peripheral surface of the inner box body. The internal space of the inner box body is closed and opened through the sealing mechanism, and when the internal environment temperature of the inner box body is too high or too low, coordinated processing of the internal environment temperature of the inner box body is achieved through cooperative work of a heat dissipation mechanism and a heat preservation mechanism, and the environment temperature in the inner box body is ensured to be maintained at a normal optical cable line working temperature. In addition, the optical cable cross connecting box adopts the structural design of the inner box body and the outer box body, so that the internal environment temperature of the inner box body has an effective heat preservation and heat insulation function, and further, the normal operation of the optical cable line in the inner box body is effectively prevented from being influenced by external high temperature or low temperature.

The invention relates to a preparation method of hollow monofilament three-dimensional fabric. The method comprises the following steps: 1) weaving: selecting CVS blended yarns and hollow monofilaments to weave gray cloth of the fabric; (2) pre-shaping: pre-shaping the gray cloth of the fabric; (3) dyeing: dyeing the pre-shaped gray cloth of the fabric; (4) softening arrangement: performing softening arrangement on the dyed gray cloth of the fabric; (5) wrinkle-resisting arrangement: performing wrinkle-resisting arrangement on the gray cloth of the fabric which is subjected to the softening arrangement; (6) secondary shaping: performing secondary shaping on the gray cloth of the fabric which is subjected to the wrinkle-resisting arrangement in order to acquire the fabric, wherein the CVS blended yarns are CVS staple fibre yarns. The method enjoys the following advantages: hollow polyester monofilaments are selected such that the monofilaments can be adjusted on a jacquard machine; dueto the reasonable proportion of hollow polyester monofilaments and yarns, brusting of monofilament jacquard fabric is avoided; during a post-processing process, a heat-preserving thermal-insulating auxiliary agent is added in order to ensure that the fabric has a high heat-preserving thermal-insulating function.