47results about How to "Improve waterproof function" patented technology

The invention discloses an exposed polymer cement waterproof coating with a permeable crystallization function and a preparation method thereof. The waterproof coating comprises a component A and a component B, the component A comprises acrylic polymer emulsion, fluorocarbon emulsion, methyl silicic acid, soluble inorganic silicate and other auxiliaries; and the component B comprises cement, a filler, a geopolymer, a nanoscale silicon-containing compound, cellulose ether and an optional pigment. The waterproof coating disclosed by the invention has the functions of repairing structural cracks by permeable crystallization in the structure and enhancing the waterproof function of the structure; the high-elasticity and high-strength coating film outside the structure has an external waterproof effect, and the structure is protected; and meanwhile, the comprehensive long-acting waterproof effect is achieved through the self-repairing function when the coating film is broken. The LED lamp has exposure performance, and is particularly suitable for maintenance engineering needing to be exposed and repaired.

The present invention relates to the technical field of waterproofing coiled materials, and discloses a composition for polyvinyl chloride waterproofing coiled materials, a polyvinyl chloride waterproofing coiled materials, and a preparation method and application thereof. The composition contains polyvinyl chloride, ethylene-vinyl acetate-carbon monoxide copolymer, a plasticizer, a filler, expandable microspheres, a crosslinking agent, and an antioxidant; relative to 100 parts by weight of polyvinyl chloride, the content of ethylene-vinyl acetate-carbon monoxide copolymer is 10-40 parts by weight, the content of the plasticizer is 35-50 parts by weight, the content of the filler is 20-55 parts by weight, the content of the expandable microspheres is 1-3 parts by weight, the content of the crosslinking agent is 1-3 parts by weight, and the content of the antioxidant is 0.1-0.4 parts by weight. The polyvinyl chloride waterproofing coiled material not only has strong tensile strength and elongation, but also has good waterproof function while being able to insulate and heat.

The utility model discloses an air inlet structure and energy storage equipment, and the air inlet structure comprises a first frame plate, a filter grating assembly, a second frame plate and an inner fan cover which are sequentially connected from outside to inside. An air inlet plate and a flow guide plate which correspond to each other in the height direction are respectively arranged in the first frame plate and the second frame plate; the air inlet plate and the flow guide plate are arranged in a staggered manner, and an S-shaped channel penetrating through the filtering grating assembly is formed; wherein the flow guide plate can intercept water drops penetrating through the S-shaped channel; an air inlet cavity with an opening in the top is formed between the inner fan cover and the filter grating assembly in a surrounding mode, and the air inlet cavity is communicated with the S-shaped channel; the sides, facing the inner fan cover, of the air inlet plate and the flow guide plate are each provided with a sound insulation piece. By means of the arrangement, the waterproof and noise reduction functions can be achieved at the same time, and therefore the use experience is improved.

The utility model discloses an elastic nylon fabric which comprises a fabric layer, the fabric layer is formed by interweaving warp yarns and weft yarns in a plain weave mode, the warp yarns are of a ZS double wrap yarn structure formed by wrapping spandex with low-denier nylon, the twisting mode is that Z twisting and S twisting are conducted at the same time, and the twisting degree ranges from 1800 twists to 2000 twists. According to the elastic nylon fabric, a ZS double-wrapping structure is adopted in the warp direction of the elastic nylon fabric, the overall tension of wrapping yarn is ensured, and the elasticity and stability of the fabric are improved. Meanwhile, by adjusting the density in the warp direction and the weft direction, the fabric not only has an excellent cool feeling effect, but also has good anti-ultraviolet performance, and the air permeability is optimized.

The invention provides a shower room integrating far infrared heating and sauna, the shower room comprises a shower room body, the shower room body is composed of a base, a top cover, a frame located between the base and the top cover, and a door body and a side wall which are installed on the frame, a shower system is arranged in the shower room body, an infrared sauna device is arranged on the side wall, and the infrared sauna device is connected with the door body. A waterproof door used for shielding the infrared sauna device and a control system used for controlling the working state of the shower system and the working state of the infrared sauna device are arranged in the shower room body, and when the waterproof door is closed and completely shields the infrared sauna device, the shower system can be started and work. The integrated shower room is convenient to use, the occupied area can be reduced, the space utilization rate can be increased, the manufacturing cost can be reduced, the applicability is wide, and the requirements of users can be fully met.

The utility model discloses a fusion networking communication terminal, and relates to the technical field of communication equipment. Comprising a shell, a first spring and a second spring are fixedly installed on the left inner wall, the right inner wall and the rear inner wall of the shell respectively, a rectangular frame is fixedly installed between the first spring and the second spring, and mounting holes are formed in the positions, corresponding to the first spring, of the left side wall and the right side wall of the rectangular frame; and a mounting box is mounted in the rectangular frame through a fixing mechanism, the fixing mechanism comprises third springs and a fixing rod, and the third springs are fixedly mounted at the positions, corresponding to the mounting holes, of the left side face and the right side face of the mounting box correspondingly. According to the utility model, the damping function of the terminal body is added through the first spring and the second spring, the fixing mechanism and the dismounting mechanism facilitate dismounting and maintenance of the terminal body, the terminal forms a sealed whole through the sealing ring between the shell and the interface board, and the terminal has a better waterproof function and is safer to use.

This invention relates to the field of building waterproof coating technology, and discloses a high-elasticity, high-adhesion spray waterproof coating, which is composed of component A and component B in a mass ratio of 10:1 to 12:1. Component A includes the following components and their mass parts: 40 to 55 parts of polyurethane prepolymer, 12 to 22 parts of cement-based composite filler, 1.0 to 2.0 parts of fluorosilicone modified halloysite, 0.6 to 1.4 parts of γ-(2,3-epoxypropoxy)propyltrimethoxysilane, 0.4 to 1.2 parts of polycarboxylate cement modifier, 0.2 to 0.7 parts of antioxidant 1010, and 0.1 to 0.5 parts of defoamer. This highly elastic and highly adhesive sprayable waterproof coating and its preparation method introduce γ-(2,3-epoxypropoxy)propyltrimethoxysilane into the coating system. Its epoxy groups can react chemically with the hydroxyl groups abundant on the surface of the cement-based substrate to form stable chemical bonds. At the same time, the cement-based composite filler in component A is homologous to the cement-based substrate material, which can improve the compatibility between the coating and the substrate and effectively solve the problem of weak adhesion of organic waterproof coatings.

The utility model provides a dustproof and waterproof protection box for communication equipment, and relates to the technical field of communication equipment protection, the dustproof and waterproof protection box comprises a communication equipment metal outer box, metal heat conduction supports are fixed on two sides of the inner surface of the communication equipment metal outer box, and a heat dissipation air pump is fixed on the top of the inner surface of the communication equipment metal outer box. An air blowing pipe and an air suction pipe are fixed to the output end and the input end of the heat dissipation air pump respectively, the air suction pipe is fixedly connected with the communication equipment metal outer box in a penetrating mode, through detection of the raindrop sensor and regulation and control of the control box, the heat dissipation mode of the communication equipment in rainy days and sunny days can be changed, and the heat dissipation efficiency is improved under the condition that heat dissipation is not delayed. And the dustproof and waterproof effects on the communication equipment are ensured.

The utility model discloses an automobile decorative adhesive tape which comprises a winding drum, an automobile decorative adhesive tape body is wound outside the winding drum, and a first sawtooth cutting line and a second sawtooth cutting line are fixedly arranged at the connecting end of the automobile decorative adhesive tape body respectively. The number of the first sawtooth cut-connecting wires and the number of the second sawtooth cut-connecting wires are both multiple, the multiple first sawtooth cut-connecting wires and the multiple second sawtooth cut-connecting wires are connected in a meshed mode, and a plurality of cut-connecting holes are evenly formed in the meshed connecting positions. Notches are formed in the two ends of the meshing connection position of the first sawtooth cutting connection line and the second sawtooth cutting connection line. The adhesive tape can be torn completely without a tool, so that the use is more convenient; the waterproof function and the corrosion resistance are increased, the diversity of the overall functions of the automobile decorative adhesive tape main body is improved, and the market development and requirements are better met.

The utility model provides a transformer circulation heat dissipation device, which relates to the technical field of transformer heat dissipation, and comprises a base station, one side of the base station is fixedly connected with an inclined surface step, the top of the base station is fixedly connected with a metal outer box, the two sides of the metal outer box are both provided with a protection device, the top of the metal outer box is fixedly provided with a top cover, and the top cover is fixedly provided with a top cover. An insulating wooden box is fixedly connected to the inner side of the metal outer box, a transformer body is fixedly mounted in the insulating wooden box, and a control panel is fixedly mounted on one side of an inner cavity of the insulating wooden box. According to the insulation wooden box, the temperature sensor detects the temperature inside the insulation wooden box and transmits the temperature to the control panel, after the temperature exceeds a set parameter, the control panel starts the exhaust fan, the exhaust fan operates to generate suction force to exhaust air inside the insulation wooden box, and new air enters the insulation wooden box through the first ventilation groove to achieve the cooling purpose. The purpose of circulating cooling is achieved through cooperation of all the assemblies, and the transformer body is prevented from being damaged due to high temperature.

The utility model discloses a zinc alloy gate that can prevent water, including door frame body, the front side of door frame body is provided with hinge body, and the back of hinge body is installed with zinc alloy door board, and the back of zinc alloy door board is provided with zinc alloy door frame, limit block is set up in the outside of zinc alloy door frame, and the inside of zinc alloy door frame is installed with reinforcing structure, the outside of limit block is provided with sealing strip, and the inside of sealing strip is provided with the limit hole, and the front side of sealing strip is provided with rubber pad, baffle is set up in the outside of sealing strip, and the outside of baffle is installed with positioning frame. The zinc alloy gate that can prevent water, through the sealing connection between zinc alloy gate and door frame, can effectively improve the waterproof function of zinc alloy gate, at the same time, the inside of zinc alloy gate is additionally installed with support, effectively improves the firmness of zinc alloy gate inside, improves the service life of zinc alloy gate.

A gas-generating device drug column sealing end cap and sealing device, the sealing end cap comprises a circular cover plate, a three-layer cylinder standing on the inner surface of the circular cover plate, the three-layer cylinder is a concentric cylinder extending axially inward from the inner surface of the circular cover plate, and the three-layer cylinder comprises an outer cylinder, an inner cylinder and a center cylinder; a positioning cavity 1 for positioning the end of the outer tube is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder, the inner surface of the circular cover plate between the inner wall of the outer cylinder and the outer wall of the inner cylinder is the bottom surface of the positioning cavity; a positioning cavity 2 for positioning the end of the center tube is formed between the center cylinder and the inner circle of the circular cover plate. The sealing end cap can completely cover the edge of the outer tube to avoid drug leakage at both ends of the drug column, greatly reducing the safety hazards caused by drug leakage during production and transportation, and also improving the waterproof function of the drug column; the end cap and the outer tube are tightly assembled without the need for the process of tape sealing, thereby improving the production efficiency of the gas-generating device.

The utility model provides a kind of pipe well, including two wallboards of mutual lap to enclose pipeline, two groups of support frame and the protective layer being arranged on the outer surface of wallboard by the fixed part connecting wall and wallboard, can improve the structural stability of pipe well, construction efficiency, sound insulation and waterproof thermal insulation.

The utility model discloses a waterproof electric toothbrush with an embedded brush head, which comprises a toothbrush operating handle, a wireless charging seat is clamped at the bottom of the toothbrush operating handle, the output end of the toothbrush operating handle is connected with an embedded insertion rod, a plastic assembly slot is arranged on the embedded insertion rod, and a waterproof cover is arranged on the plastic assembly slot. And an independent brush head is arranged at the top of the plastic assembly slot. According to the wireless charging device, the toothbrush operating handle and the like are installed, so that when the device is used, a user can clamp the toothbrush operating handle into the wireless charging base when the device is idle, the convenient wireless charging function is achieved, and the flexibility is improved; a user can clamp the disinfection cap at the top of the toothbrush operating handle to cover the independent brush head, and at the moment, the ultraviolet sterilization lamp in the disinfection cap can be turned on to sterilize and disinfect the independent brush head, so that the risk of bacterium breeding is reduced, and the functionality of the device is enhanced.

The utility model belongs to the technical field of LED lighting equipment, and particularly relates to LED lighting equipment with a waterproof protection structure, which comprises a shell, the shell is of a rectangular frame structure, and a supporting net plate is fixed in the middle of an inner cavity of the shell; a blocking cover is arranged, two sets of first transverse plates and second transverse plates are arranged in an inner cavity of the blocking cover in a staggered mode, the first transverse plates and the second transverse plates are used for forming an S-shaped air channel, external rainwater is effectively prevented from entering an inner cavity of a shell through two-layer staggered blocking, and the device is simple in structure, excellent in waterproof performance and extremely high in practicability; and a waterproof and dustproof assembly is arranged in the inner cavity of the filter box, dust in air is effectively filtered through a dustproof net, water vapor in the air is adsorbed and filtered through a water absorption layer, and the waterproof and dustproof functions of the device are further improved.

The present invention discloses a thermal resistance optimized heat insulation integrated wallboard structure and its production process, which relates to the technical field of wallboards, including the preparation of heat insulation materials, wherein the heat insulation materials include polystyrene insulation boards, vacuum insulation boards, aerogels and silicate boards, wherein the polystyrene insulation boards and aerogels constitute heat insulation layers, and the preparation of the polystyrene insulation boards includes the following steps: material selection, foaming treatment, mixing and stirring, and solidification molding. The present invention achieves stable indoor temperature and reduced indoor and outdoor heat exchange by designing the preparation of heat insulation materials, solves the problem of energy waste of heat insulation wallboards, and improves living comfort.

The waterproof breathable system comprises a waterproof breathable unit, an air collecting unit and an air channel unit, the air collecting unit is located at the heel, the air channel unit is a one-way exhaust channel, one end of the air channel unit is communicated with the interior of the shoe, the other end of the air channel unit is communicated with the air collecting unit, and the air is exhausted in the direction of an air collecting groove. The water-stopping breathable unit is an opening and closing body which is conducted or closed under the pressure condition and comprises an air outlet end and an inner connecting end, the inner connecting end is communicated with the air collecting unit, when the air pressure in the inner connecting end is larger than the deformation force of the air outlet end, the air outlet end is conducted and communicated with the outside to exhaust air in the shoe, and when the pressure in the air outlet end is smaller than the outside pressure, the water-stopping breathable unit is closed. The utility model further discloses an outdoor waterproof breathable shoe, the outdoor waterproof breathable shoe comprises a sole, a waterproof breathable system is arranged on the sole, and the outdoor waterproof breathable shoe achieves the breathable and waterproof functions of the outdoor shoe, especially the airtight shoe such as a boot or a military training shoe.

The utility model belongs to the technical field of automobile air conditioner drain pipe, disclose a kind of drain pipe device and car, drain pipe device is connected with vehicle body sheet metal, for discharging automobile air conditioner condensate, drain pipe device includes drainage structure, plugging piece, support ring, connecting structure and sealing element.When the depth of water outside is deeper, when over the containing cavity, plugging piece is acted on by the buoyancy of water and can automatically float, block the outlet of first drain pipe, water will not continue to enter the first drain pipe inside through containing cavity, to reach the effect of sealing;When water level outside drops, plugging piece is automatically lowered by gravity, falls on support ring, and the condensate produced when air conditioner is opened refrigeration can smoothly enter second drain pipe and discharge outside the car through opening. Connecting piece and sealing element are fixed on vehicle body sheet metal by bolt, the sealing effect of sealing element plays the function of sealing waterproof, completely separates inside the car and outside the car, further improves the waterproof function of vehicle when wading.

The utility model relates to a high-temperature-resistant zipper, which belongs to the technical field of zippers and comprises two zipper tapes, zipper teeth are fixed on opposite sides of the two zipper tapes, a same detaching mechanism is arranged between the zipper teeth on the left side and the right side, and protective components are arranged on the outer sides of the zipper teeth on the left side and the right side. According to the high-temperature-resistant zipper, pressing blocks on the left side and the right side are extruded in the direction of the opposite sides, connecting plates on the left side and the right side move relatively, positioning blocks on the left side and the right side are separated from positioning grooves in the left side and the right side correspondingly, at the moment, two square boxes can be driven by arc-shaped blocks to be pulled out of a box body, and disassembly work is completed; the zipper teeth have good heat insulation performance, the waterproof function of the zipper teeth is enhanced, permeation of rainwater and liquid can be effectively resisted, the zipper teeth have the advantages of being waterproof, heat-insulating, moisture-proof, flame-retardant and wear-resistant, and the problem that the overall coordination degree of common zipper pulls and clothes is affected even if the zipper pulls and the clothes are matched products is solved.

The utility model provides a concrete self-waterproof structure of an underground superimposed side wall. The concrete self-waterproof structure comprises an enclosure structure, cement-based capillary crystalline composite cloth and a self-waterproof concrete inner wall. The cement-based capillary crystalline composite cloth is mounted on the enclosure structure; and the self-waterproof concrete inner wall is poured between the cement-based capillary crystalline composite cloth and the building surface layer. The structure is simple to install, does not need other equipment on site, is convenient to operate, and has good waterproof performance.

The present application relates to the technical field of textiles, and particularly relates to a production method of waterproof nylon yarn. The production method of waterproof nylon yarn comprises the following steps: sequentially performing plasma treatment and silane coupling agent modification on nylon filaments to obtain modified nylon filaments; mixing the modified nylon filaments and polyester elastic filaments, and sequentially performing combining, twisting and network processing to obtain composite filaments; soaking the composite filaments in a fluorine-free composite waterproof finishing liquid to perform finishing to obtain waterproof filaments; and sequentially performing first solidification and second solidification on the waterproof filaments to obtain waterproof nylon yarn after post-processing. The present application constructs a complete process system comprising fiber surface synergistic modification, yarn structure optimization, multifunctional fluorine-free composite finishing and gradient solidification crosslinking, and finally obtains high-quality waterproof nylon yarn which is environmentally friendly, has excellent waterproof performance, excellent mechanical properties and soft hand feeling.

The invention discloses a novel composite multilayer breathable gauze material with waterproof and anti-infection functions and a preparation method thereof. The preparation method comprises the following specific preparation steps: 1) dipping gauze in a graphene oxide solution, and then washing and drying; forming a first reinforced layer structure on the surface of the gauze; 2) dipping the gauze forming the first reinforced layer structure in a stearic acid / organic silicon emulsion / vegetable oil mixed solution for hydrophobic modification to form a second waterproof layer structure; 3) performing cold gas dynamic spraying on the surface of the gauze to deposit nano-silver particles so as to form a third antibacterial layer structure; and 4) carrying out light-proof packaging and irradiation sterilization to obtain the novel composite multi-layer breathable gauze material with waterproof and anti-infection functions. When the novel composite multi-layer breathable gauze material is used, the side with the silver coating is in direct contact with a wound. The gauze material can achieve efficient prevention and treatment of wound infection, the hydrophobic coating can effectively block external water and guarantee breathability, and the gauze material has important clinical significance on wound treatment.

The present invention discloses a light and thin flexible circuit board, comprising an upper PET layer, an upper circuit, an upper insulating UV layer, an upper jumper, an upper waterproof glue layer, a middle spacer, a lower waterproof glue layer, a lower jumper, a lower insulating UV layer, a lower circuit and a lower PET layer, which are arranged in sequence from top to bottom; wherein the thickness of the upper PET layer is 0.05-0.06mm, the thickness of the lower PET layer is 0.05-0.06mm, the thickness of the middle spacer is 0.025-0.038mm, and the total thickness of the flexible circuit board is 0.15-0.22mm; the upper waterproof glue fully covers the upper circuit, the upper insulating UV layer and the upper jumper; the lower waterproof glue fully covers the lower circuit, the lower insulating UV layer and the lower jumper; a layer of exhaust groove is printed on the upper waterproof glue or the lower waterproof glue. The light and thin flexible circuit board provided by the present invention makes the flexible circuit board lighter and thinner, the pressing force is more comfortable, the hand feel is better, and it has excellent waterproof function and exhaust function.

The utility model discloses a kind of laying isolation structures and underground cable PE conduit thereof, including two groups of alignment clamping plate for supporting, two groups of alignment clamping plate inside equidistantly provided with protective tube sleeve, and located in the inner end surface of each protective tube sleeve is through to the alignment clamping plate outside opening has location guide slot, the inner end surface of two groups of alignment clamping plate is fixedly provided with concrete casing.The utility model is prefabricated assembly in protective housing, concrete casing, alignment clamping plate and protective tube sleeve, can effectively improve the convenience when subsequent cable PE conduit is laid, while concrete casing can carry out all-round protection to the outside of protective tube sleeve, and the combination of protective housing and alignment clamping plate, can further improve the waterproof function outside equipment, double protection and waterproof structure, can effectively improve the protection and waterproof function of cable PE conduit, and then improve the service life of subsequent cable PE conduit.

The utility model discloses a waterproof well lid for urban cable tunnel, including waterproof well lid and inspection well foundation, waterproof well lid is composed of well lid, well seat, F type magnetic rubber sealing strip, inspection well foundation is composed of well curb plate and shaft, well seat and well curb plate are connected through fixed bolt, and the well lid is fixed in the shaft. And an F-shaped magnetic rubber sealing strip is arranged between the well cover and the well seat. And the structure is simple, the waterproof performance is good, maintenance is easy, and great significance is achieved for improving the urban space utilization efficiency and improving the urban road landscape effect.

The utility model relates to the technical field of metal roofs, in particular to a waterproof metal roof structure which comprises a perforated profiled steel bottom plate, a glass wool sound absorption layer arranged on the surface of the perforated profiled steel bottom plate, a vapor barrier layer arranged on the surface of the glass wool sound absorption layer, and a rock wool heat preservation layer arranged on the surface of the vapor barrier layer. The TPO waterproof coiled material is arranged on the surface of the rock wool heat preservation layer, the metal support is installed on the surface of the TPO waterproof coiled material, the metal roof board is installed on the surface of the metal support, and the n-shaped lining purlins are arranged on one side of the rock wool heat preservation layer, and the number of the n-shaped lining purlins is two. The service life of the waterproof material on a building is prolonged, the waterproof material is not prone to failure in long-term use, the good waterproof function is kept all the time, the damage risk caused by temperature change and aging is reduced, and the structural safety of the building is guaranteed.

The application relates to a novel cable accessory connecting structure, which belongs to the technical field of cable systems and is used for connecting between a cable metal sheath and a cable accessory metal shell. A coaxial sleeve is arranged on the cable metal sheath, and the coaxial sleeve comprises an electrical connecting part and a waterproof part. The electrical connecting part is used for providing an electrical connecting channel between the cable metal sheath and the cable accessory metal shell, and the waterproof part is used for guaranteeing the waterproof performance between the cable outer sheath and the cable accessory metal shell. The electrical connecting part comprises a conductive layer and a spiral supporting belt arranged in the conductive layer. The electrical connecting part is spirally wound on the exposed cable metal sheath. Under the action of the spiral supporting belt pressure, the conductive layer is kept in abutting contact with the outer wall of the cable metal sheath and the inner wall of the cable accessory metal shell. The application has the effect of reducing the influence of external factors on the electrical continuity and waterproof performance between the cable metal sheath and the cable accessory metal shell.

The utility model discloses a carbonized wood outer wall construction system for a steel structure building, which relates to the technical field of steel structure outer wall engineering and comprises a steel structure system, a building waterproof heat insulation system and a carbonized wood external hanging system. Wherein the steel structure system provides support for the building waterproof heat preservation system and the carbonized wood external hanging system; the building waterproof heat preservation system plays a role in heat preservation and water prevention; the carbonized wood external hanging system comprises carbonized wood, bending pieces used for fixing the carbonized wood and a supporting pipe, and the bending pieces are evenly arranged on the supporting pipe. The carbonized wood external hanging system can be adaptively connected to a steel structure main body with a certain radian by adjusting the bending angle of the supporting pipe and selecting a plurality of bending pieces with different angles, and the problem that carbonized wood is difficult to apply to a curved surface outer wall of a steel structure building is solved. Meanwhile, the heat-preservation building block has the advantages of being simple in structure, waterproof, weather-proof, good in heat-preservation effect, environment-friendly, energy-saving, simple, attractive and standardized in component.

The utility model discloses a door plank with hidden hinges. The door plank comprises a door plank profile, a hinge and a hinge, the connecting structures are connected to the two ends of the door plate sectional material correspondingly, and the connecting structures are connected to the inner side of the door plate sectional material in a clamped mode and used for hiding the connecting structures; and the rotating shafts are rotatably inserted between the adjacent connecting structures. The arrangement mode that the door plate profiles and the connecting structures are matched is utilized, the connecting structures are clamped between the shielding assemblies and the outwards-protruding type connectors, and therefore the connecting structures can be conveniently installed, normal rotation between the two door plate profiles is not affected, meanwhile, the connecting structures at the hinged positions between the door plate profiles can be hidden, and the door plate profiles can be conveniently installed. The sealing performance of the directly-closed position of the door plate sectional materials is conveniently improved, so that the sealing performance of the connecting position between the door plate sectional materials is improved, the waterproof function can be improved, the hinge cannot be seen integrally after the door plate sectional materials are closed, and the door plate sectional materials are more attractive.