141results about How to "Good water sealing effect" patented technology

Installed in a signal receiving device for the connection of a coaxial cable connector, a water-seal connector is disclosed to include a base block, a connection component extended out of the base block and fastened up with a locknut of the coaxial cable connector, a flexible ring gasket, a cushion pad and a spring washer mounted in proper order amount the connection component and stopped between the locknut and the base block to achieve an excellent water sealing effect. The flexible ring gasket has an axially inwardly extending annular packing portion and a radially inwardly extending annular stop face defined therein and water-tightly wrapped about an outer race and outer end edge of the locknut.

The invention provides a cold-mixed and cold-laid asphalt mixture, and a cold-mixed and cold-laid asphalt mixture wearing layer, and belongs to the technical field of road engineering. The cold-mixedand cold-laid asphalt mixture comprises coarse aggregates, fine aggregates, high-performance modified emulsified asphalt, a mineral filler, water and a liquid additive. The asphalt mixture prepared from above cold-mixed and cold-laid material components according to a special mineral grading range can be closely bonded to an old asphalt pavement and a cement pavement; and compared with traditionalmicro-surfacing and super-sticky wearing layer materials, the mixture has higher resistance to crack, water and skid and lower driving noises.

A duct connection assemble, whereby upon connecting a saddle flange (2a) of the joint duct (8) to the main ribbed duct (3) through the communication hole (1b), the rubber sealant (1) is interposed between the saddle flange (2a) and a circumferential area of the communication hole (1b) so that protuberances (2b) uniformly press the rubber sealant (1) through the recesses (1d) to tightly engage the saddle flange (2a) against an outer surface of the main ribbed duct (3) through rib-fitting grooves (1a) and the water sealing small projective rings (1c). The joint duct (2) is brought into an elastical engagement with the main ribbed duct (3) to achieve a good water sealing action for an extended period of time.

The invention discloses a cement modified soil strengthened geogrid reinforced soil structure and a construction method thereof. The cement modified soil strengthened geogrid reinforced soil structure (shown in a figure 1) is composed of four parts including a base layer (1) and a cover layer (9) composed of cement modified soil, a water drainage layer (2) and a cement modified soil strengthened geogrid reinforced soil layer thereof, and is a novel geogrid reinforced soil structure which is formed by improving similar structures through utilizing good properties including solidification, high wetting resistance, high anti-scouring and flood damage resisting properties, high shearing strength and the like of cement modified soil. Compared with an existing similar structure, the novel geogrid reinforced soil structure and the construction method thereof, provided by the invention, can realize panel-free construction of an abrupt-slope reinforced soil structure, and can also remarkably improve the wetting resistance, anti-scouring property and whole shearing strength of the geogrid reinforced soil structure; the cement modified soil strengthened geogrid reinforced soil structure is especially suitable for protecting and reinforcing edge slopes, which are easy to scour and damage by flood, of abrupt-slope sections.

The invention discloses a construction method for treating a vehicle jump at a bridge head in a highway. The construction method comprises the steps of: subgrade treatment, base treatment and pavement construction, and concretely comprises the following steps of: A, adopting rammed earth or a light body material to tamp in a layering way at a abutment back, wherein the compaction depth of each layer does not exceed 20cm; filling each layer by 2-3m and tamping the level top surface of a roadbed by using a strong rammer to form a stable abutment back roadbed; B, fabricating a reinforced cement concrete slab which is equal to a bridge in width; paving the reinforced cement concrete slab and a base material on the abutment back roadbed in the layering way, so as to obtain a rigid-flexible intermediate layer with the reinforced cement concrete slab; and C, carrying out the pavement construction on the rigid- flexible intermediate layer on the bridge floor. The method is simple in construction method, low in cost, short in period, stable in foundation and long in service life, and the problem of the vehicle jump at the bridge head is effectively solved.

The present invention is an anti-drip showerhead which includes a body, a cover plate and a plurality of spray outlets opened on the cover plate. Each of the spray outlets comprises an anti-drip means chamber at a first end and at least one spray outlet opening at a second end opposite the first end; the anti-drip means chamber and the spray outlet opening are in water communication with each other; each of the anti-drip means chambers is disposed with a water pressure actuated anti-drip means which is operable between an open position where water from the body is allowed to pass through the anti-drip means and exits through the spray outlet opening and a close position where water from the body is blocked by the anti-drip means and thus could not exit through the spray outlet opening.

The invention relates to a fiber-broken stone synchronous-sealing pavement maintenance method, relates to the pavement maintenance method, and is suitable for preventive maintenance treatment for roads. The method includes the steps: 1) spraying modified emulsified asphalt; 2) synchronously spreading fibers and broken stone aggregates; 3) adopting a 16 T-or-more rubber wheel road roller for rolling the pavement obtained in the step 2) for 2-3 times with the rolling speed of 2-3.5 km/h, and followed by cleaning and recycling loose aggregates with an aggregate recycling device; and 4) after determining that the pavement obtained in the step 3) basically has no loose aggregates, spraying the modified emulsified asphalt, and closing traffic for 2 h-6 h, and then allowing vehicles to pass through. The water sealing performance and the anti-abrasion performance of the pavement can meet the preventive maintenance requirements of all kinds of roads, and the anti-sliding performance is excellent.

The invention discloses a foldable steel dam bottom shaft watertight structure in the technical field of steel dam gates. The foldable steel dam bottom shaft watertight structure includes a bottom shaft fixed at the bottom of a gate leaf, wherein the bottom shaft is fixed on a concrete foundation through a hinged support; a water sealing element is arranged between the gate leaf and the concrete foundation; the water sealing element includes link plate assemblies corresponding to the two ends of the gate leaf; the two link plate assemblies are connected through a rubber band; the upper end of the rubber band is hermetically connected with the gate leaf, and the lower end of the rubber band is hermetically connected with the concrete foundation; the two ends of the rubber band extend out of the link plate assemblies; and each link plate assembly includes a plurality of link plates that are sequentially hinged. The rubber band can be folded and sealed at will and can be reliably supported by adopting the link plate assemblies at the two ends thereof, as a result, the two ends of the rubber band can be permanently attached onto the gate wall during the rotation of the gate leaf, and water leakage is avoided; the device is satisfactorily sealed and highly reliable to use, and has a simple structure; and the foldable steel dam bottom shaft watertight structure adopts the link plates for sealing by changing the functions of the link plates, so as to achieve an unexpected effect.

The invention discloses a socket and spigot joint pipeline anti-seismic connector, and relates to a socket and spigot joint pipeline connector so as to improve the tensile bearing force of a buried pipeline connector, optimize the anti-seismic performance of the buried pipeline, effectively reduce the earthquake disaster at the position of the pipeline connector, prolong the service life of the pipeline connector, reduce the pipeline post-disaster repairing and maintaining cost. The connector comprises five parts including a pipeline bell mouth, a pipeline inserting port, a rubber ring, a metal limiting ring and a rubber gasket. The pipeline bell mouth is internally provided with an annular groove. A circle of ring-shaped protrusion is arranged at the tail end of an inserting port pipeline. One side of the tail end, close to the inserting port, of the protrusion part is provided with the gradient with the tilt angle ranging from 15 degrees to 45 degrees, and pipeline inserting port installation is convenient. The metal limiting ring is composed of three sets of arcs of 120 degrees, the cross section is in an L shape, and the part, protruding close to the outer side, of the metal limiting ring is used for installing and fixing the metal ring to the position of the groove of a bell mouth pipeline. After a single pipeline connector is pulled and deformed to the extreme, each pipeline can drive an adjacent pipeline to slide together, pipeline deformation is transmitted to an adjacent pipeline connector, and the capability of resisting large deformation of a soil body around the pipeline is achieved finally.

The invention discloses a hydraulic fracture tester and a method for simulating a permeable liquid of a suddenly-heightened water head. The device is provided with a pressure chamber consists of a top cover, a cylinder and a base, wherein a cylindrical test piece is fixedly arranged on the base; a test piece axial force applying device is arranged on the top cover in a penetrating manner; two ends of a test piece are respectively connected with a water outlet pipe and a first water inlet pipe for providing fracture water pressure; the pressure chamber is connected with a second water inlet pipe for providing confining pressure; an impermeable membrane is spaced between the first water inlet pipe and the hole wall of a drilling test piece; resistance wires are attached to the impermeable membrane; an acoustic emission sensor is arranged on the cylinder. The method comprises the following steps: producing the test piece; setting up the tester; loading the test piece; analyzing a failure process, and the like. The invention fills up the blank of a hydraulic fracture failure testing device and the method for the permeable liquid of the sudden heightened water head, and provides test conditions for deeply researching a hydraulic fracture mechanism.

The invention provides a blast furnace smoke recycling device. The blast furnace smoke recycling device comprises a tower body, a horn-shaped pipe, a smoke outlet pipe, a spraying component, a dehydrating component and a water injection pipe, wherein the horn-shaped pipe is arranged in the inner cavity of the tower body, the small end of the horn-shaped pipe extends from the top of the tower body, a predetermined space is kept between the big end of the horn-shaped pipe and the bottom of the tower body, and the spraying component is arranged above the horn-shaped pipe; the dehydrating component is arranged between the outer surface of the horn-shaped pipe and the inner surface of the wall of a tower; the smoke outlet pipe is arranged on the tower body and is communicated with the part, arranged above the dehydrating component, of the inner cavity of the tower body; the water injection pipe is arranged on the tower body and is communicated with a part, arranged below the dehydrating component, of the inner cavity of the tower body, and the water injection pipe is arranged on the big end of the horn-shaped pipe. The blast furnace smoke recycling device realizes smoke cooling, dehydrating and water sealing functions at the same time, project investment and occupying area are reduced, and the blast furnace smoke recycling device has the advantage of good cooling, dehydrating and water sealing effects.

The present invention discloses a floor drain for same floor drainage. It includes the following several portions: grilled cover plate, filtering screen, drainage funnel, O-type sealing ring and floor drain body. It is characterized by that the described floor drain body is a hollow body tray structure, the front end of its top portion is equipped with a water inlet, the described grilled cover plate, filtering screen, drainage funnel and O-type sealing ring are successively cover-mounted on said water inlet, the tail end of said floor drain body is equipped with a water outlet, and said water outlet is connected with a U-trap pipe set in piping shaft of same floor.

The invention provides a building drainage collection system. The building drainage collection system comprises a drainage pipe assembly, a transverse pipe drainage assembly communicating with the drainage pipe assembly, and a water seal assembly communicating with the transverse pipe drainage assembly, wherein the interior of the transverse pipe drainage assembly is of a flat cavity structure, and the bottom surface of a cavity of the transverse pipe drainage assembly is obliquely arranged. According to the building drainage collection system, the flat transverse pipe drainage assembly is adopted to be connected with the drainage pipe assembly and the water seal assembly, so that the occupied space is small, and the technical effect of sewage and wastewater drainage can be achieved without lowering a floor slab layer.

The invention relates to the field of geotechnical engineering, in particular to a water curtain drilling optimization setting method based on dynamic evaluation of water-rich characteristics of surrounding rock. The method includes the following steps that (1), according to the geological conditions of a reservoir area, it is determined that a water curtain hole is a horizontal water curtain holeor a vertical water curtain hole, and a water curtain roadway is designed; (2), a transient electromagnetic test is performed on the water curtain design plane after construction of the water curtainroadway is completed, a water-rich zone and a water-poor zone are found, water curtain holes with the hole spacing being14-20m are arranged in the water-rich zone, and water curtain holes with the hole spacing being 5-10m are arranged in the water-poor zone; and (3), a water curtain test is performed on the water curtain holes, and reperforating is carried out according to the test result. The water-rich zone and the water-poor zone in a geological zone are considered in the water curtain drilling optimization setting method, the distances of the water curtain holes are designed separately, the best water sealing effect can be achieved, and the water curtain drilling optimization setting method is relatively simple to operate.

The invention provides a toilet drainage collection system. The toilet drainage collection system comprises a drainage pipe assembly, a transverse pipe drainage assembly communicating with the drainage pipe assembly and a water seal assembly communicating with the transverse pipe drainage assembly, wherein the drainage pipe assembly comprises a first water inlet pipe, a second water inlet pipe, afirst vertical pipe and a second vertical pipe, the first water inlet pipe and the second water inlet pipe are connected, the interior of the first water inlet pipe communicates with the interior of the second water inlet pipe, the inner edge of the second water inlet pipe is tangent to the inner edge of the first water inlet pipe, the first water inlet pipe is connected with the first vertical pipe, the interior of the first water inlet pipe communicates with the interior of the first vertical pipe, and a pipe wall cavity with an expanded volume is arranged at the communication part between the second water inlet pipe and the first water inlet pipe. According to the toilet drainage collection system, due to the fact that the pipe wall cavity with the expanded volume is arranged in the drainage pipe assembly, the curvature radius of wall-attached rotational flow of sewage of the drainage pipe assembly is increased, and it is guaranteed that the wall-attached rotational flow of the sewage can be achieved.

The invention provides a waterborne polyurethane dispersion. The waterborne polyurethane dispersion is prepared from 3-10 parts of diisocyanate; 3-15 parts of a polyhydric alcohol; 0.5-5 parts of castor oil; 1-5 parts of a solvent; 0.5-5 parts of a chain extender; 10-35 parts of an acrylate monomer; 0.1-0.3 parts of an initiator; 40-65 parts of water; 0-5 parts of hydrophilic dihydric alcohol; 0-2parts of a neutralizer; and 0-0.5 parts of an auxiliary agent. During preparation, castor oil is introduced into the step of synthesizing a polyurethane prepolymer, so that the castor oil cooperateswith the polyhydric alcohol to react with diisocyanate to synthesize the polyurethane prepolymer; an acrylate monomer is added, and water is added in a high-speed stirring state to form a secondary dispersion; a chain extender is added to form a polyurethane shell layer; and an initiator is added to form a polyacrylate core so as to obtain the waterborne polyurethane dispersion. Castor oil and polyacrylate are used as modifiers, so that the permeability and the drying speed of the waterborne polyurethane dispersion are improved, a paint film has high hydrophobicity, high hardness and high sealing property after being formed, and the problem of rib expansion of waterborne wood coatings is solved.

The invention provides an oblique turn plate odor-resistance floor drain comprising a cylinder body; a radial rotary shaft is arranged in the cylinder body; tow ends of the rotary shaft are respectively connected with the inner wall of the cylinder body; the rotary shaft is rotatably provided with an oblique turn plate matched with an oblique cross section of the cylinder body; the lower side of the center of the oblique turn plate is connected with the rotary shaft. The beneficial effects are that the floor drain uses the oblique turn plate, and the oblique turn plate can open a large water flow channel in a short time, water flow cross section is big, and water discharge is fast; the oblique turn plate can be closed in a short time so as to keep certain water seal, thus providing good odor-resistance effect.

The invention discloses a road structure for preventing a highway bump at a bridge-head in a soft soil area and a method of the road structure. The road structure comprises an abutment and a road surface located on one side of the abutment. The road surface is sequentially provided with a road surface layer, an embankment and a roadbed from top to bottom. A water sealing layer is arranged betweenthe roadbed and the embankment. A water sealing mechanism is arranged in the side, near the abutment, of the roadbed and defined by multiple water sealing walls connected end to end. The end, near thewater sealing layer, of the water sealing mechanism is embedded in the water sealing layer. Underground water is isolated through a wall body, and the roadbed is kept dry. Moisture of a soft soil foundation can be isolated and effectively stopped, and later settlement of the roadbed can be effectively controlled.

The application of the invention provides a full-automatic airtight drainer for draining by phases and preventing drying, which comprises an outer cavity, a frame, an inner core, a base and a draining pipe, wherein magnetic materials or springs with the same polarity are respectively arranged on the inner core of a floor drain and the base; a water storage cavity is arranged below the inner core;when water flow is small, water in the water storage cavity can flow into the draining pipe; when the water displacement is great, the gravity of the water in the water storage cavity exceeds a repulsive force of the magnetic material or enables the springs to be compressed, the inner core integrally sinks, an inner core cap of the floor drain is opened and then water directly enters the interiorof the outer cavity and is drained through the draining pipe, and thereby the phase type large-area quick draining is realized; and after the draining is ended, the inner core can automatically floatand water seal is realized. The full-automatic airtight drainer for draining by phases and preventing drying adopts the appearance of a plug mesh of a traditional floor drain no longer, so that the attractiveness in appearance is realized; in addition, the full-automatic airtight drainer has the advantages of favorable odor preventing effect, quickness in draining and broad popularization and application prospect.

The invention provides a bonding layer synchronizing drainage asphalt pavement construction process which comprises the following steps: carrying out pre-construction preparation; treating a lower bearing layer; mixing a drainage asphalt mixture; transporting the drainage asphalt mixture; scattering the bonding layer and paving the drainage asphalt mixture at the same time; grinding the drainage asphalt mixture; and opening the traffic. By means of the construction process provided by the invention, the wheel bonding phenomenon of a transportation vehicle as the viscosity of the bonding layermaterial is great can be avoided; the bonding effect of the bonding layer is increased without scattering gravels or pre-wrapping the gravels. In particular, when the bonding layer is emulsified asphalt, the emulsified asphalt can be quickly demulsified under the heat action of the drainage asphalt mixture, and meanwhile, water in the drainage asphalt mixture is vaporized to drive the emulsified asphalt to move upward, so that the emulsified asphalt and the drainage asphalt form a whole on the surface, the interlayer bonding effect and the water sealing action are enhanced, and the long-term durability of a pavement is improved.

The invention discloses a hydrophobic maintenance seal coat material for roads and a preparation method of the seal coat material. The hydrophobic maintenance seal coat material for the roads is prepared from the following components in parts by weight: 100 parts of cementing materials, 12-20 parts of a hydrophobic additive, 5-12 parts of a nano modified stain resistant agent, 2-6 parts of a surface modifier, 1-3 parts of an activator, 2-4 parts of a wetting agent, 16-24 parts of light hydrophobic aggregate, 6-10 parts of filling materials, 4-8 parts of a diluent, 2-6 parts of a leveling agent, 7-11 parts of silica gel powder, 1-2 parts of a defoaming agent and 2-5 parts of a stabilizer. The material has good hydrophobicity and water seal performance, can isolate external water outside therange of the road surface by excellent hydrophobicity, inhibits external water from penetrating into the interior of the road surface layer, effectively solves the problem of water damage to the roads, improves durability of the roads, and has good effect of improving performance of the road surface.

The invention discloses an automatic water-stop shower head. The automatic water-stop shower head comprises a body (5) and a water outlet surface cover (10) which are fastened with each other, wherein an accommodating cavity (12) is formed between the body (5) and the water outlet surface cover (10); and a water sealing plate (9) capable of moving up and down relative to the water outlet surface cover (10) is arranged in the accommodating cavity (12). The automatic water-stop shower head is characterized in that a soft rubber plate (11) is arranged between the water sealing plate (9) and the water outlet surface cover (10), wherein a water pressure cavity (9-4) is formed between the water sealing plate (9) and the water outlet surface cover (10); the water pressure cavity is provided with a water inlet (9-9) and a water overflow hole (9-8); the water inlet (9-9) is connected to a water inlet assembly; the water outlet surface cover is provided with a water barrier body in the water pressure cavity; and the water sealing plate (9) is provided with an initial position and a water outlet position relative to the water outlet surface cover (10). The automatic water-stop shower head can be used for quickly stopping water.