47results about How to "Guaranteed location" patented technology

The invention relates to a casting method for casting the three-way ventilate branch tube of thin-wall iron element, which comprises: (1), using the curvature formed by the central line of C exhaust open and the central line of A exhaust tube, to make the C and A exhaust opens above the parting surface, to be shaped via upper and lower outer moulds; the tube core and sand core are put via the serial number, and it uses pour system that combines side pour and bottom pour with contract cap and cold iron; (2), preparing outer mould, core box, section sheet, pour cap, and the wood mould that checking sample plate; (3), preparing the casting element and sand core; (4), drying the casting element and the sand core, and closing the tank after arranging the sand core; (5), smelting and pouring; (6), cooling and molding; (7), cleaning the casting element; (8), thermally treating; (9), testing the water pressure. The invention can improve the quality of casting element, and improve the producing efficiency.

The invention discloses a method and a system for updating and warehousing urban pipelines on the basis of an ArcGIS (geographic information system). The method includes the following steps of acquiring spatial ranges of data of source databases; deleting certain data in target databases; establishing attribute import configuration; importing the data in the source databases into the target databases according to the attribute import configuration and cleaning and filtering certain attribute data; performing edge matching, and specifically, manually correcting and adjusting urban pipeline data and pipe point data in conflict ranges; establishing attribute association relationships among the urban pipelines and pipe points according to geometric network interfaces, namely assigning values to pipeline and pipe point association attributes in urban pipeline spatial databases by the aid of geometric network development interfaces; establishing the attribute association relationships among the urban pipelines and the pipe points; and updating and warehousing the data. The certain data which are deleted from the target databases correspond to the acquired spatial ranges. The certain attribute data do not conform to database constraints in the target databases. The method and the system have the advantages that urban pipeline updating and warehousing processes can be standardized and unified by the aid of the method and the system, and the method and the system provide a powerful support for application such as data sharing, migration and integration for the urban pipelines.

The invention discloses an adaptive layering method for preventing feature deviation of 3D printing model, including the creation of three-dimensional models, A mesh process is carried out on that three-dimensional model, to generate the STL file, reading the STL file, and preprocessing the data read from the STL file, to obtain the preprocessed data, recognizing the feature height on the three-dimensional model after gridding, A set of height data is obtained to adjust the spacing between adjacent feature heights, the height data is adjusted, The feature height is sliced at a position of thefeature height, and an adaptive slicing is performed between adjacent feature heights to obtain slice outline information, generate a print file, and print a 3D model. The invention ensures that the layered plane passes through the position where the model features are located, thereby retaining the three-dimensional model features, effectively preventing the feature deviation and loss caused by the layer-by-layer accumulation of materials in the printing process of the 3D printing model, and reducing the step error.

Aiming at the problems that time and labor are wasted when female and male silkworm eggs with different egg colors are separated and the requirement of production of silkworm seeds on time schedule is difficult to meet, the invention provides an instrument for automatically and accurately separating female and male silkworm eggs at a high speed, and the instrument is labor-saving and ensures thatthe silkworm eggs are not damaged. The separator for female and male silkworm eggs, provided by the invention, takes the characteristic that different sexual silkworm eggs have different egg colors as a design characteristic for recognizing and distinguishing the female and male silkworm eggs and focuses on overcoming the physiological property of the silkworm eggs that the silkworm eggs is not favorable for mechanical and automatic control. Through applying technologies such as turnplate type obliquely scraping egg transportation, and the like and using devices such as a single-channel prearranged counting and number control egg supply device, a multi-channel coil shunting and spaced radiation state sorting device, a respectively independent color sensor photoelectric recognition and electromagnetic egg pocketing device separation device, an obliquely scrapping, egg collecting and separately storing device and the like, high-speed and precise female and male silkworm egg separation is realized, the purposes of not damaging the silkworm eggs and maintaining the activity of the silkworm eggs are achieved, and labor is also greatly reduced.

The invention discloses a construction technology for a building foundation and a main structure. A constructed building is of a frame structure or a frame shearing wall structure. The technology includes the steps: firstly, constructing pile foundations; secondly, constructing reinforced concrete structures of the constructed building with a plurality of floors from bottom to top; and thirdly, constructing masonries. The pile foundation construction process includes: constructing cast-in-situ bored piles; performing waterproof treatment for pile heads; constructing fine aggregate concrete protection layers; and constructing foundation slabs. When the reinforced concrete structure of any floor of the constructed building, firstly, a bearing structure of the currently constructed floor is poured, and secondly, floor slabs of the currently constructed floor are poured. After the reinforced concrete structures are constructed, filler walls on the floors are constructed. The construction technology is simple in step, reasonable in design, high in operability, convenient to implement and fine in construction effect, and the construction quality of the building can be effectively ensured while construction period is ensured.

The invention provides a manufacturing process of a non-woven fabric hand bag. Operation is completed through cooperation of an installation frame, an expansion device, two pressing devices and two handle positioning devices, a problem that the traditional connection mode has many steps and is tedious can be solved, when a lifting handle is adhered to the marking position, manual operation is adopted, problems that the positions of lifting handles of various finished products are slightly different due to small-range dislocation, the lifting handles and a bag body slip due to lubricity of gluesolution during manual pressing, the manual pressing force is not large, and the lifting handles and the bag body possibly fall off in advance before the glue solution is solidified are solved.

The invention provides a device used for radicula sampling and radicula growth monitoring and a use method thereof. A radicula growth monitor is applicable to being buried in a selected soil positionfor repeated use, the device comprises a shell body, the shell body comprises a side wall and a bottom wall, containing space with generally consistent inner diameters from top to bottom is enclosed by the side wall, an upper opening of the containing space is opened wide, the bottom wall is arranged on a lower opening, and meshing openings are uniformly formed in the side wall and the bottom wall; the diameter of each mesh opening is >=2 millimeters and <=5 millimeters; the shortest distance between any two adjacent mesh openings is <=5 millimeters. The radicula growth monitor can overcome heterogeneity influences and reduce result differences caused by different inner and outer environments of the containing space to the largest extent, thereby detecting growth conditions of some area more objectively and accurately.

The invention discloses grinding equipment of a metal machining machine. The equipment comprises a machine, wherein the top of the inner wall of the machine frame is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a first conical wheel through a flat key, and the bottom of the first conical wheel is fixedly connected with a second conical wheel;the second conical wheel is fixedly connected with a threaded rod through the flat key, and a sliding block sleeves the outer wall of the threaded rod; an auxiliary sliding rail is fixedly connected to the top of the inner wall of the machine frame, and an auxiliary sliding block is slidably connected to the inner wall of the auxiliary sliding rail; and the bottom of the auxiliary sliding block isfixedly connected with a sliding block through a connecting rod, and the bottom of the sliding block is fixedly connected with an electric telescopic rod. The invention relates to the technical fieldof machining of metal devices. The grinding equipment of the metal machining machine achieves the purpose of clamping and grinding, the workpiece is clamped and ground, different positions can be positioned, the grinding equipment can change positions, and the grinding quality and the grinding precision and the adaptability of a multi-working environment are guaranteed.

The invention discloses an orifice plate flow meter throttling device which comprises two opposite connecting flanges, an annular orifice plate body and permeable holes, wherein the annular orifice plate body is arranged between the connecting flanges. A center hole is formed in the center of the orifice plate body, the permeable holes penetrate two sides of the orifice plate body, installing handles are fixedly connected at the outer edge of the orifice plate body, positioning pins are arranged on the connecting flanges, and positioning holes are formed in the orifice plate body. When the throttling device is used for the gas fluid pressure difference flow metering process during which liquid is easily precipitated, precipitated liquid cannot be gathered at the front end of the orifice plate body of a pipeline, measuring accuracy of an orifice plate type flow meter can be improved, installing requirements of a center hole axis on axes of the corresponding pipe sections are met, and the installing handles can serve as position calibrations of the permeable holes.

The invention discloses a pre-pressing construction method for a fabricated 0 # block construction bracket, and belongs to the technical field of bridges. The method comprises the following steps: mounting the 0 # block construction bracket, pre-pressing by using a pre-pressing assembly in a graded tension loading manner, and removing the 0 # block construction bracket. When the pre-pressing load piece is tensioned and loaded, the tensioning ends of the steel strands bear tensioning stress which is tensioned inwards along the top wall, the tensioning stress acts on the upper longitudinal beam assembly through pulley limiting and direction changing, the anchoring ends of the steel strands are tensioned downwards, and pre-pressing load is achieved. The steel strands are converted in the horizontal and vertical directions. The length of the steel strands is the stroke of the upper longitudinal beam assembly bent to the top wall of the bridge pier body through the lower counter-force beam assembly, is only related to the length of the upper longitudinal beam assembly, the distance between the upper longitudinal beam assembly and the lower counter-force beam assembly, the length of the lower counter-force beam assembly, the distance between the lower counter-force beam assembly and the top wall of the bridge pier body and the like, and is not related to the height of the bridge pier body, and the stress loss of the steel strands is effectively reduced.

The invention discloses a cast iron swing check valve. The cast iron swing check valve comprises a water passing opening. A valve body is fixedly connected to the upper end of the water passing opening. A seal ring is arranged inside the water passing opening. The other end of the seal ring is provided with a valve clack. A swing arm is fixedly connected to the upper end of the valve clack. An annular grooved block is hinged to the swing arm, connected to the inner wall of the valve body in a clamped manner and movably connected to the valve body. A handle is fixedly connected to the outer endof the annular grooved block. A half-ring-shaped opening is formed in the side, provided with the handle, of the valve body. The handle penetrates the valve body and is fixedly connected with the annular grooved block. A cavity is formed in the left side of the handle and internally provided with a cylinder. A hand lever is arranged at the outer end of the cylinder, penetrates the valve body andis fixedly connected with the cylinder. A spring is fixedly connected with the lower end of the cylinder. The other end of the spring is fixedly connected to the inner wall of the cavity. An annular cavity hole is formed in the upper end of the valve body. The portion, provided with the annular cavity hole, of the outer surface of the valve body is provided with buckling pillars. A valve deck is arranged at the upper end of the valve body. The inner wall of the valve deck is provided with step-shaped blocks. Hinge buckles are arranged on the upper surfaces of the step-shaped blocks.

The invention discloses an annular magnetic ring press-in device of a centrifugal fan assembly machine. The annular magnetic ring press-in device comprises a rotary suction conveying assembly, a rotary receiving assembly, a fixed base, a pressing cylinder, a press-in mechanism, a jack-up post and a jacking cylinder. The rotary suction conveying assembly is connected with the rotary receiving assembly. The rotary receiving assembly is located below the fixed base. The two sidewalls of the fixed base are provided with sliding rails. The press-in mechanism is movably connected to the fixed base through the sliding rails. The pressing cylinder is mounted at the upper end of the fixed base. The telescopic end of the pressing cylinder is connected with the telescopic end of the press-in mechanism. A vertical plate is arranged at the lower end of the fixed base. The side face of the vertical plate is provided with a sliding rail. The jack-up post is movably connected to the vertical plate through the sliding rail. The jack-up post and the press-in mechanism correspond to the rotary receiving assembly. The annular magnetic ring press-in device has the advantages that the press-in depth ofannular magnetic rings can be detected, and a wind wheel rotates effectively.