12results about How to "Guaranteed compressive strength" patented technology

The utility model discloses an easy-to-clean durable type disc filter element, including first support post and a plurality of first filter disc, the first filter disc is sleeved in the outside of first support post, the first filter disc includes first support steel ring, first inner filter screen and first outer filter screen, first inner filter screen and first outer filter screen all are symmetrically arranged in both ends of first support steel ring, first outer filter screen is located the outside of first inner filter screen, the middle part of first support steel ring, first inner filter screen and first outer filter screen is equipped with first connecting assembly, the utility model provides an easy-to-clean durable type disc filter element, and its structure is stable and reliable, has good structural strength, and first inner filter screen and first outer filter screen are supported through first support steel ring, guarantee its pressure strength, and can quick assembly and disassembly, convenient cleaning, more simple.

The present application relates to a kind of oil pipe dosing device, to solve the problem of traditional dosing method medicament uniform dispersion to the bottom of oil pipe.The device includes oil pipe, adjacent oil pipe male oil pipe joint and female oil pipe joint are threadedly connected;N connection flat tubes, which are closely attached to the outer wall of the oil pipe, the n connection flat tubes are connected into a complete annular sleeve in the circumferential direction of the oil pipe, and n is an even number;Wherein, from the female oil pipe joint to the extension direction of the oil pipe body, the width of the inner cavity of the connection flat tube gradually decreases along the radial direction of the oil pipe, so that the inner cavity of the connection flat tube forms an expanded diameter structure at the connection of the upper and lower adjacent oil pipes;The connection flat tube is made of wear-resistant and corrosion-resistant composite material, and an antistatic coating is provided on the outer side wall of the connection flat tube.The present application does not need to modify the existing oil pipe structure, and the modular design improves the installation efficiency, is suitable for thick oil, high sulfur / wax oil well, can reduce the load of pumping equipment, and prolong the service life of oil pipe.

The application discloses a kind of reinforced toughened panel concrete and preparation method thereof, belong to panel concrete preparation technical field.The reinforced toughened panel concrete of the application includes the following components: low-heat portland cement, fly ash, slag powder, silica fume, fly ash microbeads, sand, water, copper-plated steel fiber, polyethylene fiber, high-performance water reducing agent, hydration temperature rise inhibitor and calcium-magnesium composite expansive agent.The reinforced toughened panel concrete of the application can realize the whole process performance optimization of panel concrete from micro defect inhibition to macro toughening and crack control, significantly improve the compressive strength and axial tensile strength and crack resistance of panel concrete, effectively solve the intrinsic brittleness and early shrinkage cracking risk of ultra-high strength concrete.

A PVC (polyvinyl chloride) floor with a miniature heat dissipation structure relates to the technical field of floors and comprises a bottom plate, a plurality of main grooves are uniformly formed in the upper surface of the bottom plate, branch grooves are formed between adjacent main grooves, and the adjacent main grooves are communicated through the branch grooves; the supporting part is located above the bottom plate and comprises auxiliary supporting layers and a supporting layer, and the auxiliary supporting layers are connected to the upper surface and the lower surface of the supporting layer correspondingly; the heat conduction part is located above the supporting part and comprises a buffer layer and a heat conduction layer, the heat conduction layer is located above the supporting part, and the buffer layer is located between the supporting part and the heat conduction layer; the wear-resistant layer is positioned above the heat conduction part; the main groove serves as a core airflow channel, the branch grooves form dense net-shaped branches, the heat dissipation area is further enlarged, cold air enters the main groove through the branch grooves and then is heated to rise, natural convection is formed, static heat conduction is converted into dynamic heat dissipation, and the heat dissipation efficiency is improved.

This application provides a thermal insulation foam, a method for preparing the thermal insulation foam, and a refrigeration device. The thermal insulation foam has a honeycomb structure with multiple honeycomb pores penetrating the foam along a first direction parallel to the centerline of the honeycomb pores. The density of the thermal insulation foam decreases along a second direction perpendicular to the first direction. This allows for the simultaneous optimization of low density and high compressive strength in the thermal insulation foam.

The utility model discloses a bridge pier column reinforcing structure, and belongs to the technical field of bridge reinforcing. The steel casing is arranged on the outer side of the bridge pier, so that the pouring cavity is formed between the steel casing and the bridge pier, and pouring is convenient; pouring is conducted in a pressurized pouring mode, and the phenomenon of pouring hollowing of the poured pier is avoided; connecting structures are arranged at the two ends of the steel casing, so that the steel plate is prevented from slipping in the pouring process; by arranging the stiffening ribs, the radial compressive strength of the steel casing in the pouring process is guaranteed; by implanting the steel bars, it is ensured that the steel pile casing and the original structure form a jointly-stressed whole, and the overall performance of the reinforced structure is improved; due to the arrangement of the steel casing and the stiffening ribs, enough strength and rigidity are provided, and the construction requirement of pressure grouting is met; the steel protection cylinder is formed by splicing the semicircular shells, the splicing positions are connected in a welding mode, the steel protection sections are spliced in the length direction, splicing is conducted in a mortise and tenon joint mode, and the construction efficiency is improved.

The utility model discloses ecological paving stone of imitating stone surface relates to paving stone technical field. Including the pavement base plate, the bottom surface is used to lay on the ground surface base soil, a plurality of processing filling body, even fixed in the pavement base plate top, and the drainage structure is reserved between two adjacent processing filling bodies, is provided with imitating stone convex between two adjacent drainage structures, and there is height difference between imitating stone convex and drainage structure, and imitating stone convex is fixed in the top of processing filling body, along with rainwater contact imitating stone convex's surface, and rainwater flows along the slope of imitating stone convex to adjacent drainage structure, and through the water gap of drainage structure rapid penetration to the base soil below the pavement base plate, the utility model discloses the slope design of imitating stone convex and the synergistic effect of drainage structure, effectively guide rainwater along the slope rapid convergence to the passageway gap, and then through the discharge port of gradually increasing aperture smooth infiltration base soil, has improved the drainage efficiency of paving stone significantly.

The utility model relates to the technical field of ore crushing, in particular to a compression-resistant roller tire which comprises two tire roller mechanisms rotating oppositely. Each set of tire roller mechanism comprises a roller shaft connected with the driving mechanism, a roller sleeve arranged on the roller shaft in a sleeving mode, a connecting sleeve used for connecting the roller shaft and the roller sleeve and a supporting frame used for connecting and installing the tire roller mechanism to the roller press body, and the two ends of the roller shaft are detachably installed on the supporting frame; the roller sleeve comprises a first ring sleeve unit and a second ring sleeve unit which are alternately installed on the connecting sleeve, the second ring sleeve unit is formed by splicing a plurality of detachable fan-shaped blocks, and extension plates are connected to the two ends of each fan-shaped block in an integrally-formed mode. According to the utility model, the installation process can be simplified while the parts can be disassembled, assembled and replaced at will, the connection stability and the pressure resistance are ensured, and the connector is not easy to loosen in the use process.

The application relates to a light-weight concrete insulation board and a preparation method thereof, and belongs to the technical field of building insulation boards. The light-weight concrete insulation board is mainly prepared from the following components: cementing material 350-400 parts by weight, light-weight aggregate 71-81.5 parts by weight, additive 10-17.5 parts by weight, foaming agent 1.5-2.0 parts by weight, reinforcing fiber 0.8-1.2 parts by weight, silica sol 2-3 parts by weight and water 160-200 parts by weight. The light-weight concrete insulation board provided by the application can significantly improve the insulation performance on the basis of guaranteeing mechanical properties such as compressive strength, and can guarantee the anti-freezing performance of the insulation board under low-temperature conditions.

The utility model discloses a multi-degree-of-freedom adjustable 3D radar scanning robot, and relates to the technical field of 3D radar scanning robots, the multi-degree-of-freedom adjustable 3D radar scanning robot comprises a fixed base, a multi-degree-of-freedom mechanical arm is installed at the upper end of the fixed base, and the end portion of the multi-degree-of-freedom mechanical arm is fixedly connected with an assembly seat. The fixing plate is connected with the 3D radar scanner, or the fixing plate and the clamp are installed, so that the clamp or the 3D radar scanner and the multi-degree-of-freedom mechanical arm are installed in a sliding mode, in this way, installation is rapid, alignment adjustment does not need to be conducted for a long time, installation is convenient, and through arrangement of the pressing plate, the 3D radar scanner and the multi-degree-of-freedom mechanical arm can be conveniently installed. During installation, a rubber pad needs to be installed at the lower end of the pressing plate, the pressure on the upper end of the assembly plate is increased, and the assembly plate is extruded and fixed, so that the stability of the assembly plate after installation can be improved, and the stability of the 3D radar scanner during use is ensured.

The invention is suitable for the technical field of 3D ecological soil material printing, and provides a 3D printing ecological material based on immature soil and a preparation method of the 3D printing ecological material. Comprising 45%-60% of raw soil, 5%-10% of calcined gypsum, 10%-20% of aggregate, 10%-18% of sulphoaluminate cement, 5%-12% of silica fume powder, 0.2%-0.8% of Wacker dispersed rubber powder, 0.5%-1.0% of a water reducing agent, 0.8%-1.5% of a retarder, 0.5%-1.5% of a water repellent, 0.2%-0.8% of a defoaming agent, 0.5%-1% of steel fibers and 0.2%-0.5% of anti-cracking fibers. By adding the different functional components, the physical properties such as compressive strength, compactness, resilience modulus, water resistance, freezing resistance and shear strength of a wall are guaranteed, and the problems existing in current market materials are solved.

The application discloses an anti-static low-extraction polyethylene blow-molding product, which comprises, from outside to inside, an outer layer, an intermediate layer and an inner layer; the outer layer comprises high-density polyethylene and an anti-static agent; the intermediate layer comprises high-density polyethylene; the inner layer is fusible polytetrafluoroethylene; a transition layer is further arranged between the intermediate layer and the inner layer; the transition layer comprises high-density polyethylene and a fluorine-containing alkylated poly(ethylene-g-maleic anhydride) polymer; and the fluorine-containing alkylated poly(ethylene-g-maleic anhydride) polymer is obtained by reacting a fluorine-containing alcohol and poly(ethylene-g-maleic anhydride) under the catalysis of toluenesulfonic acid. The product has the advantages of corrosion resistance and clean protection, high compatibility and structural strength, and double-sided anti-static performance.