30results about How to "Good water sealing" patented technology

A floor drain (100) comprising a bottom part (4) having at least one discharge opening (5), a front part being integral with the bottom part (4) and having a first part (3b) being inclined to said bottom part at an angle being at least 30°, such as at least 45°, preferably at least 60° more preferably at least 75° and even more preferably about 90° or at least 90° and having a flange part (3a) being horizontal or inclined to horizontal at an angle being less than 20° such as less than 17°, preferably less than 15°, such as less than 10°, more preferably less than 5°, tow side walls (2) integral with said bottom part and said first part, and a back part (1) being integral with said bottom part (4), said back part (1) extending vertically from the bottom part (4), through and above the plane defined by the flange part (3a).

The invention discloses a heavy-load type durable asphalt composite structure applicable to a 'changing white to black' project. The layered composite structure is arranged on an original pavement layer and comprises an upper surface layer, a second bonding layer, an intermediate layer, a first bonding layer, a lower surface layer and a stress absorption layer in sequence from top to bottom; the stress absorption layer is arranged on the upper surface of the original pavement layer. According to the heavy-load type durable asphalt composite structure, the upper surface layer made of rubber asphalt SMA13, the intermediate layer and the lower surface layer made of high-modulus EME are all capable of bear load well, and excellent track resistance is achieved; meanwhile, compared with a common asphalt mixture, the position of the upper surface layer, the position of the intermediate layer and the position of the lower surface layer are all high in stiffness modulus which is closer to the modulus of a cement concrete pavement, so that the entire deformation coordination capacity is unified, and it is helpful to prolong the entire structural service life of the pavement.

The invention discloses a material for a cold-mixing and cold-paving overlay technology and a preparation method of the material. The material comprises a cationic single-component waterborne epoxy asphalt mixture and an interface protective agent. The cationic single-component waterborne epoxy asphalt mixture and the hydrophobic organic silicon emulsion are subjected to distribution construction, and the cationic single-component water-based epoxy asphalt mixture is mixed and paved in the advancing process of a paving vehicle special for cold mixing and cold paving. After rolling and molding, hydrophobic organic silicon protection liquid is spread on the molded cationic single-component waterborne epoxy asphalt mixture by using an asphalt spreading truck. The cold-mixing and cold-paving overlay technology and material provided by the invention have the advantages of good skid resistance, low driving noise, good water sealing performance and good durability.

The invention discloses a cup with an exhaust sealing ring assembled in a cup cover. The cup comprises the cup cover, the sealing ring and a cup body, the sealing ring is assembled in the cup cover, and a plurality of upwards-arranged first-stage exhaust grooves are formed in the inner side wall of the sealing ring at equal intervals; second-stage exhaust grooves are formed in the upper end face of the sealing ring in the circumferential direction of the sealing ring, and the second-stage exhaust grooves communicate with the top ends of the first-stage exhaust grooves; and a plurality of third-stage exhaust grooves which are arranged downwards are formed in the outer side wall of the sealing ring at equal intervals, and the top ends of the third-stage exhaust grooves communicate with the second-stage exhaust grooves. According to the cup with the exhaust sealing ring assembled in the cup cover, the sealing ring is assembled in the cup cover, the inner side wall, the outer side wall andthe upper end face of the sealing ring are provided with the step exhaust grooves which are communicated with one another, so that gas in the cup body is exhausted through the step exhaust grooves atthe moment of cover opening, and attraction to the sealing ring is weakened to the maximum extent; and therefore, the hidden danger that the sealing ring is loosened or separated from the cup cover under the action of negative pressure suction force at the moment of cover opening is eliminated.

The invention relates to a bidirectional through-flow turbine for generating power by tide. The bidirectional through-flow turbine comprises a forward inflow runner, a vertical shaft, a supporting frame, a bidirectional power generation rotating wheel, a reverse inflow runner, a generator and a speed increaser. The bidirectional through-flow turbine is characterized by further comprising front equal-width movable guide vanes and rear equal-width movable guide vanes, the front equal-width movable guide vanes are arranged between the forward inflow runner and the bidirectional power generation rotating wheel, the rear equal-width movable guide vanes are arranged between the bidirectional power generation rotating wheel and a reverse inflow runner, the forward inflow runner has a forward elliptical section, the ratio of the short axis to the long axis of the forward inflow runner is a golden division ratio, the reverse inflow runner has a reverse elliptical section, and the ratio of the short axis to the long axis of the reverse inflow runner is a golden division ratio. By taking double measures of the elliptical runners and the front and rear symmetric equal-width movable guide vanes, the composite effect of the operation efficiency of the turbine is greatly improved, the overall power generation efficiency of a generator set is remarkably improved, and the bidirectional through-flow turbine is applicable to replacing various through-flow turbines of low-head tidal power stations.

The invention discloses a through-flow water turbine with front and rear symmetrical constant-width movable guide blades. The water turbine comprises a forward water inflow passage, a shaft, a supporting frame, a two-way power generation rotation wheel, a reverse water inflow passage, a power generator and a speed increaser. The water turbine is characterized by further comprising a front constant-width movable guide blade and a rear constant-width movable guide blade. The front constant-width movable guide blade is arranged between the forward water inflow passage and the two-way power generation rotation wheel. The rear constant-width movable guide blade is arranged between the two-way power generation rotation wheel and the reverse water inflow passage. Longitudinal sections of the front constant-width movable guide blade and the rear constant-width movable guide blade are in two-end streamline pointed wing shapes and are arranged symmetrically on the two sides of the two-way power generation rotation wheel. By means of the water turbine, both the forward power generation efficiency and the reverse power generation efficiency of the power generator set can be improved, so that the total power generation efficiency of the power generator set is further improved, and the water turbine is applicable to various low water head tidal power stations.

A drive unit for a slide-out room of a recreational vehicle includes a rotary component, an elongate component, and a structural member configured to be coupled to a wall panel of the slide-out room and having an elongate cavity. The elongate component and the rotary component are arranged within the elongate cavity of the structural member and are configured to mesh such that a rotary motion of the rotary component results in a linear motion of the elongate component together with the structural member relative to the rotary component. Advantageously, the drive unit may further include a guide member and a guide rail, where the guide rail is integrated into the elongate cavity of the structural member and where the guide member and the guide rail are configured to cooperate to support the linear motion of the structural member.

A drive unit for a slide-out room of a recreational vehicle includes a rotary component, an elongate component, and a structural member configured to be coupled to a wall panel of the slide-out room and having an elongate cavity. The elongate component and the rotary component are arranged within the elongate cavity of the structural member and are configured to mesh such that a rotary motion of the rotary component results in a linear motion of the elongate component together with the structural member relative to the rotary component. Advantageously, the drive unit may further include a guide member and a guide rail, where the guide rail is integrated into the elongate cavity of the structural member and where the guide member and the guide rail are configured to cooperate to support the linear motion of the structural member.

The invention relates to a double-side guide vane tubular water turbine provided with an elliptical flow channel, which includes a forward water inlet channel, a vertical shaft, a support frame, forward movable guide vanes, two-way power generation runners, and reverse movable guide vanes. . Reverse water inlet channel, generator and speed increaser, characterized in that the forward water inlet channel is a forward elliptical cross-section, the ratio of its minor axis to the major axis is the golden ratio; from the forward water inlet cross-section The ratio of the short axis of the ellipse to the long axis of the water inlet section before the positive movable guide vane section increases linearly; the reverse water inlet channel is a reverse elliptical cross section, and the ratio of the short axis to the long axis is the golden section Ratio; the ratio of the minor axis to the major axis of the ellipse from the reverse water inlet section to the water inlet section in front of the reverse movable guide vane segment increases linearly. The invention can ensure smooth, unobstructed and symmetrical flow of water in the elliptical flow channel, so that the overall power generation efficiency of the unit is further improved, and is suitable for shaft tubular water turbines of various low-head tidal power stations.

The invention provides a construction method for an inter-wall grouting water-resisting and reinforcing well wall structure under protection of a freezing wall, and belongs to construction methods for inter-wall grouting water-resisting and reinforcing well wall structures. The construction method for the inter-wall grouting water-resisting and reinforcing well wall structure under protection of the freezing wall comprises the steps that the grouting opportunity under the protection of the freezing wall is selected actively; a grouting pipe is embedded between an inner wall and an outer wall while the inner well wall is constructed; after construction of the inner well wall is completed and before the freezing wall is melted, grouting is conducted between the inner well wall and the outer well wall from the ground under the protection of the freezing wall; and the space between the inner well wall and the outer well wall is blocked actively, so that the grouting protection effect is improved, the water sealing effect of the outer well wall is sufficiently improved, and the combined bearing effect of the inner well wall and the outer well wall is brought into play. The construction method for the inter-wall grouting water-resisting and reinforcing well wall structure under protection of the freezing wall has the advantages that the grouting pressure is low, and compact grouting is achieved; the airtightness of the outer well wall can be greatly improved after grouting, water pressure does not directly act on the inner well wall after the freezing wall is melted, and thus the stress condition of the inner well wall and the outer well wall is greatly improved; and construction is easy and convenient, the cost performance is high, the water sealing effect is remarkable, and the construction period is shortened.

The invention provides an efficient-water-purifying high-capacity integrated water tank, belongs to the technical field of integrated water tanks and solves the problem that existing integrated water tanks are low in integration degree and have drainage holes prone to blockage. The efficient-water-purifying high-capacity integrated water tank comprises a water tank body and a cabinet supporting the water tank body, an article platform is arranged on one side of the upper end face of the water tank body, a water purifying faucet, a common water faucet and a soap liquid device are arranged on the article platform, a step-shaped step overlapping platform is arranged at the upper edge of the water tank body, a chopping board and a draining curtain are connected on the step overlapping platform in a clamped manner, an embossed surface layer is arranged on the inner surface of the water tank body uniformly, a double-tank draining device is arranged at the bottom end of the water tank body, a double draining strainer residue isolating device is arranged at a draining hole of the double-tank draining device, a pipeline-type water purifier is arranged on the water purifying faucet, a polypropylene melt-blow filtering core, a softened filtering core, an ultrafiltration membrane filtering core and a postpositive activated carbon filtering core are arranged in the pipeline-type water purifier sequentially, side-opening doors are arranged on the cabinet, a handle is arranged on each side-opening door, and radius of each corner of the water tank body is 10mm.

The present invention provides a body position fixing equipment. It includes a supporting unit, a measurement unit, a control unit and an execution unit, in which the supporting unit at least includesa fluid bag with fluid inlet and fluid outlet, the measurement unit is placed in every fluid bag and is used for measuring pressure in the fluid bag and transferring the obtained measured value to the control unit, the control unit is used for controlling operation of measurement unit and execution unit according to working program, and the execution unit includes a control valve and a fluid container. Besides, said invention also provides a body position fixing method.

The invention discloses a compound multifunctional asphalt pavement sealant and a preparation process thereof. The main components of the sealant include: 100 parts of mixed modifier-modified asphaltwith 35 percent of 40-mesh rubber powder, 45 percent of 60-mesh rubber powder and 20 percent of 80-mesh rubber powder; 15 to 30 parts of functional component agent A; 10 to 35 parts of functional component agent B; and 5 to 25 parts of functional component agent C. The main components of the functional component agent A are coumarone-indene resin, trimethylolpropane, fine talcum powder, p-aminobenzoic acid and the like. The main components of the functional component agent B are diphenylmethane diisocyanate, butyl epoxy stearate, bisphenol-A epoxy compatibilizer, trimethylolethane and the like. The main components of the functional component agent C are microcapsules, vinyl glass flake mortar, polyvinyl alcohol-modified high-sodium bentonite particles and the like. According to the invention, after the functional component agents A, B and C are prepared, proportion is designed to carry out compounding, and the compounded sealant not only can fill cracks, but also can seal the cracks. The invention is applicable to different types of cracks, and according to causes of crack formation, different amounts of functional component agents A, B and C can be added. The sealant compounded bythe invention has high bonding strength, good sealing property and waterproofness and excellent high-temperature stability and low-temperature bonding property, having high application and popularization values.

The invention provides a one-piece multifunctional integrated sink and an operation method thereof, belongs to the technical field of integrated sinks and solves problems that existing integrated sinks are low in integration and imperfect in function. The one-piece multifunctional integrated sink comprises a sink body and a cabinet supporting the sink body, a placement platform is arranged on one side of the upper end face of the sink body, a water-purifying faucet, an ordinary faucet, a soap container and a tool rest are arranged on the placement platform, a ladder-like lapped-joint platform is arranged at the upper edge of the sink body, a chopping board and a deterring curtain are buckled on the lapped-joint platform, a drainage nozzle is arranged in the bottom of the sink body, a double-drainage strainer slag-isolating unit is arranged in the drainage nozzle and comprises a drainage strainer, filter screens are parallelly arranged inside the drainage strainer and the bottom surface of the drainage strainer, an S-shaped drainage pipe is connected to the bottom of the drainage nozzle, a waste processor is connected to the bottom of the S-shaped drainage pipe, a piping-type water purifier is arranged on the water-purifying faucet, the water inlet of each of the water-purifying faucet and the ordinary faucet is connected with a heater, and cold-hot water switches are arranged on the water-purifying faucet and the ordinary faucet.