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124results about How to "Waterproof and reliable" patented technology

Polyurethane waterproof roll, production equipment and process, composite waterproof layer and practice thereof

The invention provides a polyurethane waterproof roll, production equipment and process, a composite waterproof layer and practice thereof. A method of achieving the composite waterproof layer comprises the steps that firstly, underlayer polyurethane waterproof coating is manufactured, then the upper-layer polyurethane waterproof roll is manufactured, and the coating and the roll are bonded into an organic integrity which has certain interface shearing and peeling strength by the coating. Through the polyurethane waterproof roll, the solidification and film forming process of the polyurethane waterproof coating which is achieved at the construction site previously is moved forward, the polyurethane waterproof roll is produced ready in a factory through special equipment, the thickness is uniform and consistent, and the category and function are diversified. By means of seamless connection characteristic of the coating and uniform thickness characteristic of the roll, quality of a waterproofing project can be improved. The practice has the advantages that the coating and the roll are compatible in material property, the coating is smooth to cure and large in cohesive force, the cohesion between the coating and a substrate is powerful, the roll is tight to overlap or in butt joint, the coating is bonded to the roll sufficiently, the construction site demands no open fire or electrical heating operation, the safety, energy conservation and environmental protection are achieved, and the characteristic of 'liquid rubber' of the polyurethane material is given full play.
Owner:辛永刚 +1

Modified asphalt waterproof coiled material with reinforced overlap edges and production method of modified asphalt waterproof coiled material

The invention relates to a modified asphalt waterproof coiled material with reinforced overlap edges and a production method of the modified asphalt waterproof coiled material. The modified asphalt waterproof coiled material comprises a main body material layer, a modified asphalt layer and an isolating membrane, wherein two strips of fiber cloth are respectively embedded between the parts, which are respectively 0.1-1cm away from the edges of the two sides along the longitudinal direction of the modified asphalt layer, and the isolating membrane, so that the overlap edges are formed. After the method is adopted, the mechanical properties of the overlap edges are obviously improved after the modified asphalt waterproof coiled material is molded, so that the water resistance of the modified asphalt waterproof coiled material is more reliable; the production method provided by the invention solves the problems that in the traditional production process, due to mechanical mismatch of the left side and the right side of the coiled material, the coiled material is neat when being coiled and is twisted when being unfolded, and the like, and improves the quality of the waterproof coiled material.
Owner:XI NIU PI WATERPROOFING TECH CO LTD

Long auger rotary-jet mixing steel reinforced cement-soil pile foundation pit water-resisting and supporting method

The invention relates to a long auger rotary-jet mixing steel reinforced cement-soil pile foundation pit water-resisting and supporting method. An undisturbed soil layer is subjected to rotary-jet mixing on the spot through using the characteristic that a transformed long auger drilling tool with a bit is more adaptive to harder pans, the undisturbed soil layer is stirred and filled with grout at the same time to the designed elevation, the long auger drilling tool is pulled out to finish the construction of the cement-soil piles, and then reinforced materials such as shape steel are inserted into the top ends of the cement-soil piles to form columnar reinforced cement-soil pile bodies with certain strength and anti-permeability performance. The method has the advantages that the pile bodies can be driven in the harder pans to the designed depth and the designed pile diameter; through the occlusion of the pile bodies, the closed continuous pile wall body can be formed, and the reliability of a waterproof curtain is improved; and in order to increase the rigidity and the strength of the pile wall body, cement-soil is mixed and then inserted into the reinforced materials such as the shape steel, so as to ensure water-resistance reliability and the foundation pit safety. The method is applied to wide stratum ranges, and has superior advantages in harder pans in northern areas. The shape steel, an anchor rod or an inner support can be recycled, so that the cost is reduced.
Owner:北京建材地质工程有限公司 +2

Construction method for small-clear-distance four-lane shallow-buried large-span tunnel

The invention discloses a construction method for a small-clear-distance four-lane shallow-buried large-span tunnel. The construction method comprises the steps: step S10, alternately constructing two tunnels along the longitudinal direction, wherein the alternating distance is not less than 40 m, performing the look-ahead hole long roof pipe, look-ahead grouting small guide pipe and hollow grouting anchor rod operations, grouting the surrounding rock so as to form the composite lining supporting structure; step S20, excavating and supporting the upper half section of the side pilot tunnel; step S30, excavating and supporting the lower half section of the side pilot tunnel, and performing the formworking secondary lining to the side pilot tunnel; step S40, excavating and supporting the upper half section of the intermediate hole chamber; step S50, excavating and supporting the lower half section of the intermediate hole chamber, and performing the formworking secondary lining to the intermediate hole chamber; and step S60, paving the road surface and decorating the wall. The construction method for the small-clear-distance four-lane shallow-buried large-span tunnel is applied for underground-excavating the separated two-hole tunnel in double directions in the V-level surrounding rock with seriously broken rock bodies, satisfying the tunnel construction safety, reducing the construction risk, improving the construction efficiency, and saving the construction period.
Owner:SHENZHEN MUNICIPAL DESIGN & RES INST

Waterproof key structure and mobile phone using same

The invention relates to a waterproof key structure which comprises a shell, a key switch, a flexible material part and a key. The key switch and the key are assembled on the shell in a position corresponding mode. The key is movably assembled on the shell. The flexible material part is installed on the key in a sleeved mode and pasted on the shell. When pressed, the key can abut against the key switch. A rigid supporting layer is arranged on one face of the flexible material part and pasted on the shell. The key extrudes the flexible material part in the pressing direction until the flexible material part deforms to be assembled together with the shell. In the structure, a rigid support is additionally arranged on foam and used for improving the assembling and locating performance; meanwhile, in the key assembling process, the flexible material part is pressed in advance so as to be in a compressed deformation state after being assembled, and therefore the good waterproof performance of the portion between the flexible material part and the shell is achieved; in addition, when the key is pressed, the direction of pressure is perpendicular to the pasting face of the flexible material part, and therefore the flexible material part can be prevented from slipping or falling from the shell, and the problem that the key is out of work can be avoided.
Owner:POWER IDEA TECH (SHENZHEN) CO LTD

Seal structure of mobile phone protective shell

The invention belongs to the dustproof, shockproof and waterproof product field and relates to a seal structure of a digital electronic product such a mobile phone, a mobile phone protective shell, a tablet computer, a handheld terminal product, a smart band, a smart watch, a health care electronic product and a smart home electronic product. The seal structure includes a face shell and a bottom shell; the inner side of the frame of the face shell is provided with a plurality of annular grooves, the width of the annular grooves ranging from 0.5 mm to 2 mm; the inner side of the frame of the bottom shell is provided with a plurality of annular projections, the width of the annular projections ranging from 0.6 mm to 2.1 mm; and the plurality of annular projections of the frame of the bottom shell are engaged with the plurality of annular grooves of the frame of the face shell in a staggered manner. The plurality of annular projections of the frame of the bottom shell are embedded into the plurality of annular grooves of the frame of the face shell, so that a reliable protection function can be realized, and the protection level can achieve IP67, any waterproof rubber gaskets are not required. The seal structure has the advantages of low production cost and high efficiency. With the seal structure adopted, a mobile phone product can be designed into a fashion, light and slim product.
Owner:SHENZHEN XIN KINGBRAND TECH DEV CO LTD

Waterproof machine shell for water controller

The invention discloses a waterproof machine shell for a water controller. The shell comprises an upper shell and a lower shell which are buckled hermetically and mutually, wherein a positive spigot is formed on the inner wall of a lower port of the upper shell, a negative spigot which is in close fit with the positive spigot is formed on the inner wall of an upper port of the lower shell; dubbin is coated on a matching surface of the negative spigot and the positive spigot; the periphery of the lower port of the upper shell and the upper port of the lower shell, which is closely adjacent to the positive spigot and the negative spigot, is respectively provided with grooves for embedding and clamping sealing members; an upward flange is arranged at the periphery of the groove of the upper port of the lower shell; a glue groove is formed by the flange and the outer wall of the lower port of the upper shell; and sealant is filled into the glue groove. A triple waterproof structure of spigot sealing, sealing member sealing and sealant-pouring sealing at an outer seam of the upper shell and the lower shell is adopted; and compared with a sealing mode of arranging a seal ring in a single groove in the prior art, the waterproof machine shell has the advantages of more reliable and stable water prevention and vapor prevention and excellent heat dissipation, and overcomes the defect of overburning a circuit board due to local overheating.
Owner:NEWCAPEC ELECTRONICS CO LTD

Special telescopic device for isolated bridge

InactiveCN106835969ASolve the technical problems that cannot meet the displacement needs of bridges under earthquake actionReasonable structureBridge structural detailsControl systemEngineering
The invention discloses a special telescopic device for an isolated bridge. The special telescopic device comprises side beam steel and N pieces of middle beam steel positioned between two pieces of side beam steel; a V-shaped sealing rubber tape is connected between the middle beam steel and the middle beam steel or between the middle beam steel and the side beam steel; the side beam steel is fixedly arranged on bridge bodies at two sides of a telescopic seam through cast-in-place concrete and an anchoring rib; the telescopic device further comprises M groups of supporting limiting control systems which are uniformly distributed and mounted at the two sides of the telescopic beam; the supporting limiting control systems are the same in structure; each supporting limiting control system comprises a supporting mechanism, a displacement control mechanism and a limiting mechanism which are sequentially installed; each supporting mechanism provides large-angle displacement for the telescopic device; each displacement control mechanism controls uniformity of displacement of the telescopic device; and each limiting mechanism prevents an accident when extension and retraction is excessive. The special telescopic device is reasonable in structure, and enables a vehicle to stably pass and transmits vehicle load to a beam body through the supporting mechanisms; super-large transverse displacement, vertical displacement, vertical steering and horizontal steering can be realized, and deformation needs, under earthquake action, of the bridge are met.
Owner:柳州东方工程橡胶制品有限公司

Toilet base plate

The invention provides a toilet base plate. The base plate comprises a base plate body, a floor drain is connected to the base plate body and matched with the base plate body, a floor drain water outlet in the floor drain is formed in the side edge of the base plate, a floor drain water inlet is formed in the base plate body, and the floor drain water inlet is in communication with the floor drain water outlet; a first waterproof flange is arranged on the side edge of the base plate and connected to the base plate in a sealed mode; and the base plate is divided into a wet area base plate and a dry area base plate, transportation and installation are convenient, a water guide groove is further formed in the wet area base plate, and a drainage slope is arranged in the water guide groove. According to the toilet base plate, the tightly connected waterproof flanges are arranged on the side edges of the base plate to form a waterproof frame, then the waterproof purpose is achieved, the floor drain drain water outlet is formed in the side edge of the base plate, the height of the base plate body is reduced, water is drained from the side face, the integrity of the bottom face of the base plate body is guaranteed, and water resistance is facilitated; and the base plate is convenient to process, flexible in size, convenient to install and wide in application range, and is worthy of popularization and use.
Owner:上海红点卫浴科技有限公司

Pile head waterproof structure and construction method thereof

The invention discloses a pile head waterproof structure and a construction method thereof. A waterproof roll is laid first, then a post-pouring pile head is formed through pouring, the waterproof roll and the post-pouring pile head are formed into a whole, a buffer rod is arranged at the end of the post-pouring pile head, thus the waterproof roll can settle along with settlement of the post-pouring pile head, the conditions that the waterproof roll is stressed and torn due to settlement of the pile head are avoided, and waterproof integrity and reliability are ensured. A settlement sealing strip is of a special structure, and under extrusion of the post-pouring pile head, inside sealant is extruded continuously to seal the waterproof roll, a foundation pile head and the post-pouring pilehead. In addition, along with settlement of the building, extrusion pressure of the post-pouring pile head becomes large, more sealant in the settlement sealing strip is extruded, thus the waterproofroll and the pile heads are sealed more tightly, water prevention is more reliable, and a virtuous cycle is formed accordingly. The pile head waterproof structure and the construction method thereof provided by the invention are suitable for cast-in-place piles, precast piles, hollow piles and other various pile heads of different models and shapes and are high in practicability.
Owner:SHANGHAI ORIENTAL YUHONG WATERPROOF TECH CO LTD +1

Sudden-surging-prevention water pressure control method used for underground engineering

The invention discloses a sudden-surging-prevention water pressure control method used for underground engineering. The sudden-surging-prevention water pressure control method is characterized by including the following steps that a casing pipe with a switch valve is vertically arranged on a foundation bottom plate and fixed, a water discharge hole penetrating the foundation bottom plate to a soil body below is constructed in the casing pipe, and the switch valve is switched off; and a lower port of the casing pipe is connected with the water discharge hole, and an upper port of the casing pipe is connected with a water pressure control pipeline. The sudden-surging-prevention water pressure control method has the beneficial effects that by forming the hole in the casing pipe with the switch valve, sudden surging of underground water is prevented from happening after the foundation bottom plate is drilled through; and by discharging water and reducing pressure through the water pressure control pipeline, the size of an underground water head below the foundation bottom plate can be effectively controlled, and it is ensured that the basement foundation bottom plate is stable in anti-floating water level, capable of discharging water without making sand flow, and reliable in water stopping.
Owner:SHANGHAI CHANGKAI GEOTECHN ENG
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