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257results about How to "Good waterproof effect" patented technology

Construction method for applying polyurea to old flexible waterproof roof for renovation transformation

The invention relates to a construction method for applying polyurea to the old flexible waterproof roof for renovation transformation, which comprises the steps of: (1) base layer cleaning; (2) field maintenance; (3) primer brush application: adopting epoxy modified polyurethane type materials with the 100 percent solid content as primer to be directly coated and brushed on the base layer; (4) polyurea waterproof layer formation through polyurea spraying and coating on the primer surface, wherein the spraying and coating construction is completed by regions, the construction overlap edge is designed into 150 to 200mm, the secondary construction is carried out, the solvent cleaning is carried out before secondary polyurea spraying and coating at time intervals more than 6h, then, the primer is coated and brushed, the polyurea is then sprayed and coated, and the thickness of the polyurea waterproof layer is not lower than 1.5mm; and (5) facing formation through finish coat brush application within 6h after the polyurea spraying and coating: the finish coat adopts aliphatic polyurethane materials, and the facing thinness is not lower than 0.2mm. Roofs after renovation transformation by the construction method have the advantages that the waterproof effect is good, and in addition, the appearance is attractive.
Owner:CHINA BUILDING MATERIAL TEST & CERTIFICATION GRP SUZHOU

Method for simulating soil slope instability induced by groundwater

The invention discloses a method for simulating soil slope instability induced by groundwater. The method is characterized by comprising the following steps: a, putting a physical model on a centrifugal machine; b, raising the height of an external water tank, opening a water outlet valve and a water inlet valve, carrying out water seepage into a soil layer according to the thickness of a saturated soil layer and completing the saturation process of a soil mass; c, closing the water inlet valve, reducing the height of the external water tank, improving the centrifugal acceleration to solidifyand disperse the internal pore water pressure of the physical model; d, after the solidification is finished, opening the water inlet valve, raising the height of the external water tank to the corresponding height according to the preset water level height of an internal water tank; obtaining different infiltration capacity of the water to the slope when the water in the internal water tank seepsinto the soil layer and stays at different heights, and observing the wetting front change and the slope deformation condition of the physical model. The method disclosed by the invention has the advantages that the height of the groundwater level can be accurately adjusted in real time and washing of water current to the slope body is prevented; in the whole test process, high operability, highreliability and good test effect are realized.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY

Handheld stable balancing device

The invention discloses a handheld stable balancing device, comprising a tripod head assembly, a handle component and waterproof structures, wherein the tripod head assembly comprises a first rotating part, a second rotating part, a third rotating part and a fixed part which are sequentially connected, a rotating shaft of the first rotating part, a rotating shaft of the second rotating part and a rotating shaft of the third rotating part are respectively vertical to one another two by two, and the fixed part is connected with the first rotating part; the handle component is connected with the third rotating part and is electrically connected with the tripod head assembly; the waterproof structures are respectively arranged at the connecting parts of all the parts of the handheld stable balancing device. According to the handheld stable balancing device provided by the invention, a camera is fixed on the tripod head assembly, and a handle is electrically connected with the tripod head assembly, so that the tripod head assembly can be controlled to rotate at all angles by means of the handle, and the angle of the camera is further adjusted; furthermore, the waterproof structures are respectively arranged at the connecting parts of all the parts, so that the handheld stable balancing device has a better waterproof effect.
Owner:SHENZHEN GUDSEN TECH CO LTD

Waterproof anti-explosion box for cable middle connector

The invention discloses a waterproof anti-explosion box for a cable middle connector. The waterproof anti-explosion box comprises an upper cavity and a lower cavity connected through bolts, the upper cavity and the lower cavity are covered to form a middle connector bin, fast sand filling ports are formed in the upper portion of the upper cavity, end heads are arranged at the two ends of the upper cavity and at the two ends of the lower cavity, a plurality of waterproof grooves are formed in the inner walls of the end heads, and seal rings are arranged on the waterproof grooves. Cover bodies are arranged on the fast sand filling ports, and sealing flat gaskets are arranged between the cover bodies and the fast sand filing ports. The waterproof grooves and the seal rings are arranged on the upper cavity and the lower cavity, the waterproof effect is good, the fast sand filling ports are formed in the upper portion of the upper cavity, and the upper cavity can be conveniently filled with waterproof anti-explosion sand. The waterproof anti-explosion box for the cable middle connector is simple in structure, and can effectively prevent water from entering the anti-explosion box in the state of 1M water depth and provide the good operation environment for the middle connector. By means of the waterproof anti-explosion box for the cable middle connector, the waterproof performance of the cable middle connector is improved, cable faults caused after the middle connector is soaked in water are avoided, and the stable operation of a power grid is maintained.
Owner:STATE GRID CORP OF CHINA +1

Embedded-module photovoltaic system

The invention discloses an embedded-module solar photovoltaic system. The system comprises a plurality of photovoltaic modules, wherein the photovoltaic module comprise photovoltaic components, longitudinal brackets and transverse brackets; the photovoltaic components are embedded in a grid consisting of the longitudinal brackets and the transverse brackets and are connected with the longitudinal brackets through self-tapping screws; longitudinal directions of the photovoltaic modules are connected with one another through a radial flow groove, and transverse directions of the photovoltaic modules are connected with one another through a pressure plate; the tail ends of the photovoltaic modules are sealed by an edge sealing plate; the photovoltaic components comprise solar cell panels and component frames; the upper surfaces of the component frames are partially provided with convex marks; one side of each component frame is provided with an extending oblique part on which a vertical eave is arranged, and the other side of each component frame is provided with a cavity and a groove; the solar cell panels are arranged in the groove; and the component frames are fastened by frame corner connector. The embedded-module solar photovoltaic system realizes modular installation, brings convenience to the maintenance and replacement of the photovoltaic components, has good water resisting effect, can replace a conventional building enclosing member and realize the integration of photovoltaic buildings.
Owner:ZHEJIANG UNIV +1

Novel material integrating decoration, anti-crack, water-proof and heat preserving function, and its producing method

The invention discloses a new type material integrating decoration, waterproof and heat insulation and the preparation method, which is characterized in that: the new type material comprises a heat preservation and insulation layer; an anti-crack and protective waterproof layer is combined between the heat preservation and insulation layer and a decoration waterproof layer; the invention adopts the preparation steps that: the heat preservation and insulation layer is combined with the anti-crack and protective waterproof layer, and the anti-crack and protective waterproof layer is combined with the decoration waterproof layer. The invention has the advantages that: two waterproof layers and one heat insulation layer are provided; the first waterproof layer is made of one of the metal plate, polymerization cement mortar or the anti-crack and waterproof powder crack sealer; the decoration waterproof layer is coated on the metal plate, polymerization cement mortar or anti-crack and waterproof powder crack sealer, which forms the second waterproof layer; a color sand finish is formed by an external surface, integrating three functions of beautification and decoration, crack resistance and waterproof and heat insulation; the wall surface or the house surface has good waterproof, anti corrosive and anti-crack effects; the color sand facing is a flexible waterproof layer, and the house surface or the wall surface with high strength is wholly crack resistant.
Owner:天津市禹红建筑防水材料有限公司

Corrosion-resistant waterproof coating for environmental protection equipment and preparation method of corrosion-resistant waterproof coating

InactiveCN107118658AGood waterproof effectGood acid and alkali corrosion resistance and wear resistanceAnti-corrosive paintsEpoxy resin coatingsCorrosion resistantBoron nitride
The invention discloses a corrosion-resistant waterproof coating for environmental protection equipment and a preparation method of the corrosion-resistant waterproof coating. The coating is prepared from the components as follows: epoxy resin, polyvinyl alcohol, polyether polysiloxane copolymer, silane coupling agent, graphene, boron nitride, ultrafine mica powder, glass fibers, aluminium oxide, nano titanium dioxide, paste attapulgite, filler and anti-foaming agent. The preparation method comprises the following steps: firstly, carrying out reaction among the epoxy resin, the polyvinyl alcohol, the polyether polysiloxane copolymer and the graphene; then adding the boron nitride, the aluminium oxide, the nano titanium dioxide and the ultrafine mica powder which are ground; adding the silane coupling agent again to carry out reaction; mixing with the paste attapulgite, the filler, the glass fiber and the anti-foaming agent after the reaction is completed so as to obtain the coating; then spraying the coating on a surface of the environmental protection equipment. The coating has a preferable waterproof effect and also has preferable corrosion resistance performance and abrasion resistance performance; moreover, the service life of the equipment is prolonged, and the using cost of the equipment is reduced.
Owner:HEFEI TONGYOU ELECTRONICS TECH CO LTD

Pond field experimentation device and using method thereof

The invention discloses a pond field experimentation device and a using method thereof and relates to a device for experimental study of pond water area ecology and a using method thereof. The problems that the water oxygenation effect is bad, the water inlet and drainage are inconvenient, fishes are difficult to escape and the requirements of experimental study of pond water area ecology cannot be met in the conventional field experimentation enclosure ecosystem are solved. The pond field experimentation device comprises waterproof cloth, a U-shaped pipe, an oxygenation aeration device, an anti-escape net, two filtering nets, two straight pipes, four upright rods and four transverse rods, wherein the four upright rods are arranged in an array; a cross rod is connected between two upright rods; and the four upright rods and four transverse rods form a square frame. The field enclosure experimentation method mainly comprises the following steps: 1, inserting the upright rods on the square frame into the bottom of the pond; 2, injecting water into the square frame with the waterproof cloth; 3, oxygenating and aerating in water; and 4, draining water in the square frame. The pond field experimentation device is used for research of pond water area ecology.
Owner:HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI

Cave type prefabricated assembly comprehensive pipe rack and method for mounting same

The invention provides a cave type prefabricated assembly comprehensive pipe rack and a method for mounting the same. The cave type prefabricated assembly comprehensive pipe rack comprises arc-shapedroofs, partition plates, bottom plates and groove-shaped supports. The arc-shaped roofs, the partition plates, the bottom plates and the groove-shaped supports are prefabricated of waterproof concrete; free ends of the arc-shaped roofs are lapped in grooves formed in the tops of the corresponding partition plates and are fixed by the aid of waterproof concrete by means of pouring; the bottoms of the partition plates are inserted in the groove-shaped supports and are fixed by the aid of waterproof concrete by means of pouring; the groove-shaped supports are arranged at the upper ends of the bottom plates, and integral components are formed by the groove-shaped supports and the bottom plates; each pipe section is enclosed by the upper portion, two sides and the lower portion of an integral component which is formed by the corresponding arc-shaped roofs, the corresponding partition plates, the corresponding bottom plates and the corresponding groove-shaped supports, and the pipe sectionsare sequentially connected with one another to form a pipe rack. The cave type prefabricated assembly comprehensive pipe rack and the method have the advantages that the cave type prefabricated assembly comprehensive pipe rack can be conveniently prefabricated in factories and is convenient to transport; the cave type prefabricated assembly comprehensive pipe rack with the excellent integrity andstability can be excellent in performance in the aspects such as waterproof effects.
Owner:XI AN JIAOTONG UNIV

Intelligent cable connector

The invention relates to an intelligent cable connector. The intelligent cable connector has functions of a cable extending connector and an insulated connector. Besides, the intelligent cable connector is provided with a photoelectric extending connector which comprises semiconductive photoelectric separation fingerstalls, optical fiber protective jackets, an optical fiber connector, and heat-insulation binding belts, wherein the semiconductive photoelectric separation fingerstalls are both cylindrical heat shrinking tubes which are prefabricated with selective semiconductive material and are of one-in and two-out structure or one-in and multi-out structure, and are fastened to a metal shielding layer through the heat-insulation binding belts, the optical fiber protective jackets are metal jackets replacing a temperature measuring unit, and are matched with the photoelectric separation fingerstalls to protect temperature measuring fibers from being damaged, the number of the photoelectric separation fingerstalls is two, and the photoelectric separation fingerstalls ensure photoelectric separation. According to the intelligent cable connector, an original insulator structure and an original electric field structure are not damaged, photoelectric performance of an original product is not reduced, and meanwhile a function of on-line accurate monitoring of cable temperature is achieved.
Owner:SHANGHAI NANDA GROUP

Structure for grouting reinforcement of existing subway tunnel by inserting profile steel into grouting pipe and method

The invention relates to a structure for grouting reinforcement of an existing subway tunnel by inserting profile steel into a grouting pipe. The structure comprises a tunnel segment ring, the grouting pipe, a grouting positioning device, the section steel and a stratum. The structure and a method of the structure have the beneficial effects that a tip is arranged at the bottom of a grouting steelfloral tube, and small holes arranged in a plum-blossom-shaped mode are formed from the middle surface to the bottom surface from a sparse mode to a dense mode, so that the smooth inflow and outflowof grout are guaranteed, and the grouting reinforcement effect is improved, and meanwhile, a main grouting pressure releasing area is moved backwards to the bottom of the grouting pipe, so that the situation that due to the fact that the secondary disturbance of grouting is too large, the deformation of an existing tunnel segment ring is caused, and then the deformation of a whole tunnel structureis caused is avoided; and multiple times of material blocking is carried out, and a waterproof cushion layer, a rubber ring and the like are arranged, so that the problem of possible leakage during tunnel grouting construction and subsequent steps is well solved, and compared with an existing reinforcement structure and an existing construction method, the novel structure and the method are greatly improved in waterproof performance.
Owner:杭州临安中民筑友智造科技有限公司

Prefabricated underground diaphragm wall and construction method thereof

The invention relates to a prefabricated underground diaphragm wall and a construction method thereof, and belongs to the technical field of underground enclosure structures and construction. The prefabricated underground diaphragm wall comprises a prefabricated joint and a prefabricated diaphragm wall body, wherein the prefabricated joint and the prefabricated diaphragm wall body are connected with each other, the section of the prefabricated joint is in an I shape, the concave surfaces on the left side and the right side are in a semi-arc shape and are made of reinforced concrete, an impact-resistant pipe is arranged in the middle, and joint reserved bolt holes are formed in the upper surface and the lower surface. The prefabricated diaphragm wall body is composed of a plurality of prefabricated diaphragm wall body sections with rectangular sections, the upper surfaces and the lower surfaces of the prefabricated diaphragm wall body sections are provided with wall reserved bolt holes,and the left sides and the right sides of the prefabricated diaphragm wall body sections are provided with convex bodies, grooves and connecting reserved bolt holes. The groove of the prefabricated diaphragm wall body section connected with the prefabricated joint is semicircular, and a water stop rubber pad is arranged on the contact surface. The prefabricated underground diaphragm wall is highin fabricating degree, convenient to lift and assemble, good in waterproof stress effect and high in maneuverability, and the problems that hoisting is inconvenient, sandy soil is backfilled at the joint and poured concrete is prone to streaming around can be effectively avoided.
Owner:SHENYANG JIANZHU UNIVERSITY

Repair structure for transition area of intelligent highway concrete bridge expansion joint and construction method thereof

The invention discloses a repair structure for a transition area of an intelligent highway concrete bridge expansion joint and a construction method thereof. The repair structure comprises a bonding layer, a reinforcing layer, an anti-deformation layer and a passing layer, wherein the bonding layer is arranged on the surface of a reserved groove of the bridge expansion joint; the reinforcing layercomprises reinforcing beams, a first connecting chain, a second connecting chain, a bushing and concrete; the two reinforcing beams are symmetrically arranged on two inner side edges of the reservedgroove; the first connecting chain is arranged between the reinforcing beams and the reserved groove; two ends of the second connecting chain are separately welded to the two reinforcing beams; the bushing is arranged on the second connecting chain in a sleeving manner; the concrete is poured between the two reinforcing beams; the anti-deformation layer comprises a silica gel gasket, an H-shaped rack, a wire rope and a rubber block; and the H-shaped rack is arranged on the reinforcing beams, the wire rope is connected to two inner side walls of the H-shaped rack, the rubber block fills the H-shaped rack, and the silica gel gasket is arranged between the H-shaped rack and the reserved groove. The repair structure avoids upheaval or breakage of a bridge floor due to thermal expansion and cold contraction while playing a reinforced connecting role to two sides of the bridge expansion joint, and has a very good shock absorbing effect to driving.
Owner:孙敏娟

Electric vehicle charging connector assembly

The invention discloses an electric vehicle charging connector assembly comprising a connector female portion and a connector male portion. The connector male portion comprises a male portion seat and a male needle assembly which is fixedly installed in the male portion seat; the connector female portion comprises a female portion seat, a female needle assembly and a connecting seat, and the female needle assembly is fixedly installed in the female portion seat and is connected to the male portion seat in a plugged manner; the electric vehicle charging connector assembly is characterized in that the portion of the male portion seat extending into the female portion seat is sleeved with a sealing sleeve, a sealing ring is fixedly arranged in the connecting seat, the female portion seat is fixedly connected to the sealing ring and is in radial clearance fit with the connecting seat, and the sealing ring is provided with a radial position adjusting mechanism integrally. The electric vehicle charging connector assembly has the advantages that after the connector female portion and the connector male portion are connected in a plugged manner, the fine waterproof effect of the male needle assembly and female needle assembly is achieved, and the charging reliability and safety are improved.
Owner:YUYAO HUIMEI ELECTRIC APPLIANCE

Improved waterproof construction of underground structure deformation joint

The invention discloses an improved waterproof construction of an underground structure deformation joint. The improved waterproof construction comprises a main structure. A deformation joint is formed in the main structure, and internally provided with a waterproofing membrane, a waterproof strengthened story, an embedded steel edge rubber water stop, a pre-melting mode liquid expansion rubber water stop and a water receiver from an enclosure structure to the main structure in sequence. The deformation joint is internally provided with a base plate which is disconnected at the position of theembedded steel edge rubber water stop and the pre-melting mode liquid expansion rubber water stop; and the outer side of the base plate is provided with a PE foam rod. According to the waterproof construction, the waterproofing membrane, the waterproof strengthened story, a back type water stop, the embedded steel edge rubber water stop, the pre-melting mode liquid expansion rubber water stop, the water receiver and the like are arranged at the position of the deformation joint, so that the problem of low waterproof ability at the position of the deformation joint is solved. The improved waterproof construction of the underground structure deformation joint has the advantages of easy construction and installation, good waterproof effect and high usability.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

Mobile phone shell with dustproof net and manufacturing method thereof

The invention discloses a mobile phone shell with a dustproof net and a manufacturing method thereof. the mobile phone shell comprises a body and filter net foam, wherein the body is a hard plastic material; a sound guide hole passes through the inner surface and the outer surface of the body; the inner surface of the body is provided with a concave cavity; the sound guide hole is communicated with the concave cavity; the filter net foam is embedded in the concave cavity and seals and covers the sound guide hole; the filter net foam comprises a first double-faced adhesive layer, a dustproof net, a second double-faced adhesive layer, a waterproof breathable film, a Mylar layer and a release film stacked sequentially from outside to inside. As the filter net foam with a specific structure is adopted and the waterproof breathable film adopting a specific formula is matched, the filter net foam is embedded in the concave cavity for long-time sealing and bonding, water can not penetrate to the concave cavity from the sound guide hole, good waterproof effects are realized, the waterproof grade can reach IP68, dust can be blocked on the dustproof net and can not enter the waterproof breathable film, cleaning is facilitated, and good sound guide effects can be kept.
Owner:DONGGUAN MEMTECH ELECTRONICS MEMTECH ELECTRONICS PRO
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