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32results about How to "Meet water resistance" patented technology

Portable giant magnetostriction seismic source device

The invention discloses a portable giant magnetostriction seismic source device comprising an impact output bar, a guidance protection head, a compressive pre-stress regulation pressure board, a giant magnetostrictive rod, a drive coil, an impact control circuit, a power supply module and an external shell, wherein the impact control circuit is connected with the drive coil and the power supply module; the impact control circuit and the power supply module are arranged in the external shell; the impact output bar is sequentially connected to the guidance protection head, the external shell and a back cap; the impact output bar is fixed by the guidance protection head which has a cone-shape circular table structure, the bottom surface of the guidance protection head is connected to one end of the external shell, the giant magnetostrictive rod is connected to the impact output bar through a spiral filament opening; the impact control circuit is arranged in the middle part of a cavity and is connected to the drive coil and the power supply module; the power supply module is arranged at the back end of the cavity and is connected with the drive coil and the impact control circuit. The invention enhances the portability of the device, reduces the charging time, strengthens the quality of seismic source signals, improves the efficiency of detection work and is convenient for operating and applying on site.
Owner:武汉中岩科技股份有限公司

Modular expansion device and bridge

ActiveCN106320169AMeet the requirements of multi-directional displacementMeet water resistanceBridge structural detailsArchitectural engineeringJoist
The invention relates to an expansion joint and provides a modular expansion device. The modular expansion device comprises two edge beams, wherein the two edge beams are located on two sides of the expansion joint and are opposite to each other. The modular expansion device is characterized by further comprising at least one middle beam and a support beam; the middle beams are successively arranged between the two edge beams along the same direction of the edge beams; the support beam crosses over the expansion joint and is located under the middle beams; the edge beams and the middle beams are supported and mounted on the support beam; two ends of the support beam are respectively fixed on two sides of the expansion joint via a fixed steel ball support seat and a movable pressure-bearing support seat; each middle beam is connected with the edge beam which directly faces the middle beam or the other middle beam via a waterproof adhesive tape. The invention also provides a bridge comprising the expansion device. According to the expansion device, a displacement control system of the expansion device adopts an elastic system, so that the expansion device has certain adaptability to level angle; meanwhile, one end of the support beam is supported by the movable pressure-bearing support seat while the other end of the support beam is supported by the fixed steel ball support seat, so that the support beam can be adapted to the expansion change of the expansion joint and the multidirectional displacement of the expansion device caused by running of automobile wheels.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Preparing method of glass antifogging coating

The invention discloses a preparing method of a glass antifogging coating, and belongs to the technical field of coating material preparations. The preparing method comprises the steps of firstly preparing an ethanol solution and methyltrimethoxysilane to a silane coupling agent solution, then preparing nanosilicon dioxide to nanosilicon dioxide sol, conducting a reaction between the nanosilicon dioxide sol and the silane coupling agent solution to prepare reaction liquid, using acetone to scrub a glass base material, afterwards, conducting ultrasonic cleaning and etching processing on the glass base material, conducting soaking and curing processing on the glass base material by using the reaction liquid to obtain a glass after coating processing, then using 1H,1H,2H,2H-Perfluorooctyltrimethoxysilane and absolute ethyl alcohol to soak the glass, and finally taking out the glass and drying the glass so as to obtain the glass antifogging coating. According to the preparing method of the glass antifogging coating, the glass antifogging coating has a strong hydrophobic characteristic and a strong self-cleaning ability; meanwhile, the coating has good durability and strong adhesive force; in addition, the coating good antifogging performance, under the vapor environment, completely no fogdrop adheres to the surface of the coating glass, thus the use value of the glass is sharply improved, and the glass antifogging coating has a broad application prospect.
Owner:宁波欧贝特卫浴有限公司

Lithium ion battery module safety protection system

InactiveCN106026262AEffective overcurrentEffective overvoltageCells structural combinationElectric powerElectrical batteryElectronic switch
The invention discloses a lithium ion battery module safety protection system. The system comprises a battery management system circuit board, a safety protection circuit, a plastic fastening member, a flame retardation air bag and static isolation pads, wherein the battery management system circuit board is separately connected with the safety protection circuit, an equalization circuit, lithium ion soft single electric cores, a temperature sensor, a current sensor and a voltage sensor, the safety protection circuit realizes on and off through an electronic switch, the plastic fastening member is arranged between the lithium ion soft single electric cores and a battery module casing, the flame retardation air bag is arranged between the plastic fastening member and the battery module casing, all the lithium ion soft single electric cores of the battery module are divided into multiple groups which are consistent in number, and the static isolation pads are respectively arranged between every two lithium ion soft single electric cores and are tightly connected with the two-side lithium ion soft single electric cores. The system is advantaged in that the safety protection function of the battery module can be realized under multiple conditions, such as over-current over-voltage protection, high low temperature protection, flame retardation protection, electrostatic protection and expansion protection.
Owner:GUANGZHOU YIWEI ELECTROMOTION AUTOMOBILE CO LTD

Split type waterproof bottom case

The invention relates to a split type waterproof bottom case, which belongs to the technical field of architectural ornaments, and comprises a dry area plate, a wet area plate and a weather bar, wherein the dry area plate is formed by a dry area surrounding edge wall plate, a dry area surrounding edge bottom plate, a dry area base plate, a dry area side plate and a sewer hole; the dry area side plate, the dry area surrounding edge wall plate and the dry area surrounding edge bottom plate are arranged at the side of the dry area base plate; the wet area plate comprises a wet area surrounding edge wall plate, a wet area surrounding edge bottom plate, a wet area base plate, a wet area side plate and a floor drain hole; the wet area side plate, the wet area surrounding edge wall plate and the wet area surrounding edge bottom plate are arranged at the side of the wet area base plate; the dry area side plate and the wet area side plate are oppositely arranged; the weather bar is connected to the outer sides of the dry area side plate and the wet area side plate in a buckling way, and is used for connecting the dry area side plate and the wet area side plate. The split type waterproof bottom case provided by the invention overcomes the defects that the traditional bathroom is complex in a waterproof process, high in construction operation requirement, long in construction period and the like; due to the industrialized production, the construction period is shortened, the quick installation is realized, the labor cost is saved, and the sustainable development is facilitated.
Owner:ZHEJIANG YASHA DECORATION

Special-shaped shield segment structure penetrating through loess ground cracks and construction method thereof

The invention discloses a special-shaped shield segment structure penetrating through loess ground cracks and a construction method thereof. The special-shaped shield segment structure comprises a plurality of ring segments which are sequentially spliced along the axis of a tunnel; each ring segment is sequentially spliced into a ring by adopting splicing segments, and comprises a top sealing block, a plurality of adjacent blocks and a plurality of standard blocks; the plurality of standard blocks are sequentially spliced to form a lower half ring structure, the top sealing block is located at the top of the ring segment, and the two sides of the top sealing block are spliced and fixed with the lower half ring structure through the adjacent blocks; and the top sealing block and the standard blocks are wedge-shaped arc-shaped blocks, the adjacent blocks are parallelogram arc-shaped blocks, and the joints between the adjacent splicing segments are orthogonal to the loess ground cracks. The splicing segments are in a wedge-shaped arc-shaped block and parallelogram arc-shaped block combination form, and the joints between the adjacent splicing segments are kept orthogonal to the loess ground cracks, so that the damage to the tunnel structure when the ground cracks are vertically dislocated is effectively reduced, the safety of the tunnel structure is ensured, and the special-shaped shield segment structure has relatively high adaptability to the area penetrating through the ground cracks.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Single-component polyurethane adhesive and preparation method thereof

The invention discloses a single-component polyurethane adhesive and a preparation method thereof. The raw materials comprise the following components in parts by weight: 40 to 50 parts of HDI monomers, 10 to 15 parts of hydroxyl-terminated silicone oil, 10 to 20 parts of polycarbonate diol, 30 to 40 parts of trifunctional polyether polyol, 5 to 10 parts of chain extender and 0.015 to 0.03 part ofcatalyst. The trifunctional polyether polyol is a reaction product of polyol and polyisocyanate, the polyol contains trifunctional polyether polyol with more than one ethyleneoxy group in one molecule and the number average molecular weight of more than 3000, and the invention relates to the technical field of preparation of polyurethane adhesives. According to the invention, in specific practical application, the adhesive strength between glue and stones can be improved, outdoor water resistance, weather resistance, ultraviolet resistance, yellowing resistance and aging resistance are met, the service life of the water-permeable adhesive stone is prolonged, and by means of low viscosity of hydroxyl silicone oil, the polyurethane adhesive is solvent-free, more environmentally friendly inuse and capable of meeting the requirements of time development.
Owner:无锡庄周新材料科技有限公司

Radioactive source tank-mounted monitoring device and using method thereof

The invention relates to the technical field of radioactive source monitoring and to a radioactive source tank-mounted monitoring device and a using method thereof. The radioactive source tank-mountedmonitoring device includes a radioactive source tank body, an intelligent tank-mounted terminal and a battery. The radioactive source tank body has an internal hollow structure. The intelligent tank-mounted terminal is installed inside the radioactive source tank body and provided with a battery slot. A battery slice is fixed to the intelligent tank-mounted terminal and the lower end of the battery slice extends into the battery slot. A battery contact is arranged on the battery. A battery slot contact is arranged in the battery slot and matches the battery contact. The upper part of the battery is detachably installed in the battery slot through the battery piece. The battery contact and the battery slot contact coincide with each other. A control device is disposed in the intelligent tank-mounted terminal. The radioactive source tank-mounted monitoring device achieves three-in-one real-time online monitoring. The intelligent tank-mounted terminal performs online real-time radiationdose monitoring, online real-time positioning monitoring, and radioactive source basic information management on a radioactive source and a radioactive source database.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Smart home engineering box with good heat dissipation effect

The invention discloses a smart home engineering box with good heat dissipation effect. The smart home engineering box comprises an engineering box, wherein the bottom of the inner cavity of the engineering box is fixedly connected with a distribution component through a fixed plate; the top of the inner cavity of the engineering box is rotatably connected with a worm through a bearing; two sidesof the bottom surface of the worm are fixedly connected with first connecting plates respectively; the bottoms of the two first connecting plates are fixedly connected with support rods; a second connecting plate is fixedly connected between the two support rods; the bottom of the second connecting plate is fixedly connected with cooling fins; and the back of the engineering box is fixedly connected with a first fixed block. The invention relates to the technical field of smart home. According to the smart home engineering box with good heat dissipation effect, through the engaged effect of aworm and a gear, the cooing fins move to realize cooling for the distribution component inside the engineering box, an excellent cooling effect can be reached, normal service life of the distributioncomponent is guaranteed, and the smart home engineering box has high practicability and excellent economic benefit.
Owner:合肥吴亦科技有限公司

Preparation method for degradable wood-plastic board

The invention discloses a preparation method for a degradable wood-plastic board. The preparation method comprises the following preparation steps: weighing bamboo charcoal microparticles, biologicalstraw powder, modified diatomite and glass fiber, adding NaOH, carrying out soaking for 12 to 24 hours, carrying out filtering to remove a solution, carrying out washing, adding deionized water, carrying out mixing under stirring, and carrying out dissolving so as to obtain a mixed base material A; weighing a degradable modified starch binder, adding a composite stabilizer, and placing an obtainedmaterial into a heating kettle at 60 to 85 DEG C, and carrying out a reaction for 2 to 4 h so as to obtain a mixed base material B; and mixing the mixed base material A with the mixed base material Bunder stirring at a stirring rate of 500 to 600 r/min at 80 to 130 DEG C, carrying out stretching, forging and extrusion, wherein the stress of extrusion is 300 to 400 N/cm<2>, introducing argon as acarrier, filling a pressurized mixture with calcium carbonate at a pressure of 1.5 to 2.0 KPa, and carrying out cooling to a room temperature so as to obtain a product. According to the invention, the modified starch binder is adopted; starch is a cheap and renewable natural polymer material and has the advantages of no toxicity, easy biodegradability and excellent environmental friendliness; thus, the starch is modified to meet the requirements of the wood-plastic board for strength, water resistance and mildew resistance in the process of application.
Owner:徐晨攀

Weather-resistant waterproof elastic galling paint and preparation method thereof

The invention discloses a weather-resistant waterproof elastic galling paint. The galling paint is prepared from the following components in percentage by weight: 38 to 55 percent of pure acrylic emulsion, 10 to 15 percent of titanium dioxide, 20 to 30 percent of ground calcium carbonate, 0.5 to 1 percent of coalescing agent, 1 to 1.5 percent of antifreezing agent, 1 to 1.5 percent of organic silicon additive, 1.1 to 1.5 percent of defoaming agent, 0.5 to 1 percent of dispersing agent, 0.5 to 0.8 percent of wetting agent, 0.2 to 0.7 percent of pH regulator, 0.1 to 0.5 percent of thickening agent, 0.5 to 1.2 percent of water-based ultraviolet light absorber, 0.1 to 0.4 percent of AMP-95 multifunctional additive, 0.8 to 1 percent of flatting agent and the balance of water. The invention also provides a preparation method of the weather-resistant waterproof elastic galling paint. According to the weather-resistant waterproof elastic galling paint prepared by the preparation method disclosed by the invention, the solid content meets the requirements, the elastic performance, the waterproof performance and the weather resistance can meet the requirements, the weather resistance can resist artificial aging for over 1000 hours, and the performance indexes about the elongation at break can pass the standard after acid treatment, alkali treatment and artificial aging resistance treatment, and the method has obvious performance advantages.
Owner:河北三棵树涂料有限公司
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