9results about How to "Guaranteed water blocking effect" patented technology

The invention relates to the technical field of hydraulic engineering, and discloses an automatic desilting device for a hydraulic engineering gate, which comprises a gate plate and a desilting unit arranged on the gate plate, and the desilting unit comprises a driving part arranged in the gate plate and a cleaning part arranged on the surface of the gate plate. The driving component comprises mounting grooves formed in the two sides of the interior of the gate plate, two mounting plates arranged in the two mounting grooves correspondingly, and two sleeves arranged at the lower ends of the two mounting plates correspondingly. By arranging the driving part, when an engineer opens the gate for dredging, the rotating rod is driven to rotate through a mixture of flowing river water and sludge, and then the cleaning part is driven to clean sludge attached to the surface of the gate at the same time, so that the purpose that the sludge accumulated below the gate is cleaned and the cleaning efficiency is improved is achieved. And sludge attached to the surface of the gate can be synchronously cleaned, manual participation is not needed, and the gate sludge cleaning efficiency and quality are effectively improved.

The invention discloses a low-smoke-density high-temperature-resistant halogen-free special flame-retardant optical cable, which comprises a cable core, an inner sheath and a fireproof layer from inside to outside, and is characterized in that the fireproof layer comprises a fireproof layer made of a ceramic silicone rubber material; the cable core comprises optical fibers, a loose tube, a reinforcing piece and an internal flame-retardant thermal insulation layer, the reinforcing piece is located in the center of the cable core, the optical fibers are arranged in the loose tube to form an optical fiber unit and surround the reinforcing piece, the internal flame-retardant thermal insulation layer comprises water-blocking yarn and a calcined mica tape, and the space between the optical fiber unit and the reinforcing piece is filled with the water-blocking yarn. And the optical fiber units, the reinforcers and the water-blocking yarns are wound by the calcined mica tape in a multi-layer and multi-pitch manner. According to the invention, the ceramic silicone rubber material is adopted and is ceramized in a flame state or at a high temperature of more than 500 DEG C to form an oxygen barrier layer, so that a flashover phenomenon in the cable is prevented; ointment is removed from the structure, and the water-blocking yarn and the calcined mica tape are used for blocking water, so that smoke in the combustion process is reduced, and the harm to personnel is less under the condition of fire hazard.

The utility model provides a pot body assembly and a cooking utensil with the pot body assembly, and the pot body assembly comprises a housing which is provided with a via hole which is communicated with the interior and the exterior of the housing; the mounting frame is arranged in the shell; the trigger structure is movably mounted on the mounting frame, the trigger structure is provided with a trigger head located at the via hole, and the trigger head can be pressed to drive the trigger structure to move; the elastic sealing cap is arranged at the via hole and covers the trigger head, and the elastic sealing cap abuts against the shell through the mounting frame. According to the technical scheme, the problem that water easily flows into the cooker body assembly in the prior art can be effectively solved.

This invention discloses a balance ring structure for a washing device and the washing device itself. The balance ring structure includes: a balance ring body and an additive storage device protruding from the inner peripheral wall of the balance ring body; the additive storage device has an inlet and a cover for opening and closing the inlet, and the top of the additive storage device is lower than the top of the balance ring body. By placing the additive storage device on the inner peripheral wall of the balance ring body, and having the inlet and cover located on the additive storage device rather than on the balance ring body, and with the top of the additive storage device lower than the top of the balance ring body, this invention does not compromise the integrity of the opening edge at the top of the balance ring body, thus ensuring the water-blocking effect of the balance ring body.

The invention relates to the technical field of road construction, and particularly discloses an assembly type fence inner side anti-overflow base and a construction method thereof.The assembly type fence inner side anti-overflow base comprises multiple stop blocks, the bottom ends of the stop blocks are used for being buried in a concrete pavement, the stop blocks abut against one another, one side of each stop block is fixedly connected with a positioning block, and the other side of each stop block abuts against the corresponding positioning block; a positioning groove is formed in the other side of each stopping block and used for containing the positioning block on the adjacent stopping block, and a chiseling-free grout stopping belt is arranged at the bottom end of each stopping block and used for being buried in a concrete pavement. The construction process can be simplified, and the construction period can be shortened; the stop blocks are arranged in a separated mode, so that follow-up dismantling is facilitated, the stop blocks can be repeatedly used after being dismantled, the utilization rate of materials is increased, and cost is reduced; and the supporting mechanism is used for supporting the pre-embedded block, so that the anti-overflow base can still have a good water retaining effect when being installed on an uneven road surface, and the applicability is higher.

The utility model provides a panel assembly and an air conditioner outdoor unit, relates to the technical field of air conditioners, and aims to solve the problem that when an existing air conditioner outdoor unit is subjected to a rainy day or a raining experiment, rainwater is thrown into a panel assembly hole by fan blades and then enters an electric control box, so that the risk is high. The panel assembly comprises a panel and a mesh enclosure, the panel is provided with an assembly hole, the mesh enclosure is provided with an assembly part used for being connected and matched with the assembly hole, the surface, facing the mesh enclosure, of the panel is provided with a first water retaining rib, the surface, facing the panel, of the mesh enclosure is provided with a second water retaining rib, and the second water retaining rib and the first water retaining rib are arranged in a staggered mode. The protruding heights of the first water retaining rib and the second water retaining rib have an overlapped area which is used for preventing water flow from flowing in the first direction; the first direction is the direction from the air outlet area of the panel to the assembly hole. According to the utility model, the risk that rainwater enters the electric control box from the assembly hole can be effectively reduced.

The invention provides an underground reservoir supporting device which comprises two coal pillar dam bodies located on the two sides of a roadway correspondingly, fixing grooves are formed in the two coal pillar dam bodies correspondingly, the two fixing grooves are oppositely formed, the extending direction of the roadway is the first direction, and the coal pillar dam bodies extend in the first direction; the artificial dam body is arranged between the two coal pillar dam bodies, the artificial dam body is used for separating a roadway and an underground reservoir, the artificial dam body comprises a web plate and two wing plates, the two wing plates are located at the two ends of the web plate respectively, the two wing plates and the two fixing grooves are arranged in a one-to-one correspondence mode, the wing plates are fixed in the corresponding fixing grooves, and connecting parts are arranged between the wing plates and the web plate; the size of the wing plate in the first direction is larger than that of the web in the first direction, the size of the connecting part in the first direction is gradually increased in the direction away from the web, and the coal pillar dam body and the artificial dam body are matched to support the underground reservoir. Through the technical scheme provided by the invention, the problem that an artificial dam body in the prior art is extremely easy to damage can be solved.

This invention discloses a PHA water-based water-blocking coated pulp molded seedling pot containing inorganic fillers and blended polymers, and its preparation method, belonging to the technical fields of seedling containers, pulp molding, and water-based water-blocking coatings. This invention uses polyhydroxyalkanoates combined with sheet-like inorganic fillers to construct a dense water-based barrier layer and innovatively designs a sidewall drainage channel connecting to the bottom. Through a differentiated coating structure, this invention breaks the deadlock between moisture softening during the seedling stage and limited root penetration after transplanting, achieving a precise balance between excellent wet strength and free root growth. This solution eliminates fluorine-containing additives, ensuring the product's biodegradability throughout its entire life cycle.

This invention relates to the field of packaging materials technology, and more particularly to a low water vapor transmission rate coating for packaging materials and its preparation method. The aforementioned low water vapor transmission rate coating for packaging materials comprises, by mass percentage: 25-40% modified polyurethane resin, 5-20% linear alkane compound, 3-15% hydrophobic modified acrylic resin, 1-5% amino-terminated polyamide amine, 1-5% silica microparticles, 3-5% hydroxyethyl cellulose, 0.1-0.5% amino curing agent, 1-3% water-based additives, and the balance being water. The coating formed by this invention has an ultra-low water vapor transmission rate and also possesses heat-sealing capabilities. It eliminates the need for additional adhesive, lamination, or coating processes, simplifying the processing. The resulting coating is transparent, with a surface dyne value >42, and does not affect the appearance of paper or subsequent printing processes.