35results about How to "Meet design standards" patented technology

The invention discloses a novel foldable container and an assembling method thereof. The foldable container comprises a rectangular underframe, hinges, corner columns, top-angle parts and a goods carrying platform, wherein each hinge comprises a fixed portion, a movable portion, a hinge pin and a lock pin, the hinges are fixedly connected to the corners of the underframe, the corner columns are fixedly connected with the movable portions of the hinges, the top-angle parts are arranged on the top of the corner columns, the goods carrying platform is formed by the corner columns and the underframe after the corner columns are folded towards the inside of the container along the hinges, and the distance between the axis of the hinge pin and the top surface of the goods carrying platform is larger than that between the axis of the hinge pin and the end face of the goods carrying platform close to the hinge pin. When the corner columns are vertical completely, the top-angle parts are parallel to the ground completely, and when the corner columns are folded, the end faces of the top-angle parts and the corner columns are not beyond the top surface of short corner columns. According to the novel foldable container and the assembling method, standards about containers are met, assembling difficulty is reduced and assembling quality is improved.

The invention discloses a pre-stress rebar anchoring device. Pre-stress rebar adopts finish rolling deformed steel bar, and the innovation is characterized in that the device is composed of an anchorbearing plate, a positioning nut and an anchoring nut; the middle of the anchor bearing plate is provided with a first threaded hole, the anchor bearing plate is pre-buried in the top face of a beam body of a box-shaped section bridge, the surface of the lower end of the positioning nut is provided with a first outer thread, the middle of the positioning nut is provided with a second threaded hole, and the positioning nut is in threaded connection with the first threaded hole through the first outer thread; the surface of the lower end of the anchoring nut is provided with a second outer thread, the middle of the anchoring nut is provided with a third threaded hole, and the anchoring nut is in threaded connection with the second threaded hole through the second outer thread; and the anchoring nut is in threaded connection with the finish rolling deformed steel bar through the third threaded hole. The pre-stress rebar anchoring device has the advantages that the structure of the deviceis simple and ingenious, the problem of stress loss during anchoring can be effectively solved, and the safety of the bridge structure is ensured.

The present invention relates to a red copper tube bending process. Said process includes the following steps: selecting dried casting sand whose grain size is 40-80 meshes; selecting wood material and making it into conical wood plug; inserting said wood plug into lower and of said red copper tube and placing said red copper tube vertically; filling said red copper tube with the dried casting sand and inserting another wood plug into upper end of said red copper tube; horizontally placing the red copper tube filled up with dried casting sand on a platform with mould, drawing bending position; placing the bending mould rod and fixing it on the platform; using gas flame to heat bending area, using small winch to draw tube end of red copper tube, using sample rod to check bent tube accuracy, correcting so as to obtain the invented product.

The invention discloses a pre-stress rebar anchoring device. Pre-stress rebar adopts finish rolling deformed steel bar, and the innovation is characterized in that the device is composed of an anchorbearing plate, a positioning nut and an anchoring nut; the middle of the anchor bearing plate is provided with a first threaded hole, the anchor bearing plate is pre-buried in the top face of a beam body of a box-shaped section bridge, the surface of the lower end of the positioning nut is provided with a first outer thread, the middle of the positioning nut is provided with a second threaded hole, and the positioning nut is in threaded connection with the first threaded hole through the first outer thread; the surface of the lower end of the anchoring nut is provided with a second outer thread, the middle of the anchoring nut is provided with a third threaded hole, and the anchoring nut is in threaded connection with the second threaded hole through the second outer thread; and the anchoring nut is in threaded connection with the finish rolling deformed steel bar through the third threaded hole. The pre-stress rebar anchoring device has the advantages that the structure of the deviceis simple and ingenious, the problem of stress loss during anchoring can be effectively solved, and the safety of the bridge structure is ensured.

The invention relates to a latticed-shell structure, in particular to a single-layered latticed-shell structure, more particularly, a node structure of a rigid single-layered latticed-shell structure, and belongs to the technical field of roof buildings. The node structure is characterized by comprising six hollow rod pieces (3) welded and fixed with seal plates (2), and the welding angle is adjustable. The node structure further comprises a bolt drum (1) adopting a hollow cylindrical structure, wherein a detachable cover plate (101) is arranged on at least one end surface of the bolt drum (1); six groups of bolt holes are uniformly distributed in the circumferential direction of the bolt drum (1); the seal plates (2) welded with the hollow rod pieces (3) are in bolted connection with the bolt drum (1) through the bolt holes; and the bolt drum (1) is further provided with an axial bolt (4) through which the cover plate (101) is in bolted connection with the main body of the bolt drum (1).

An assembled broach disclosed by the invention adopts a split structure, and the cutter body and the blade are processed separately, which reduces the processing difficulty of cemented carbide, improves the processing accuracy of the broach, and reduces the cost of materials; secondly, the blade The group is installed on the cutter body through the positioning groove, and a positioning key is added between the blade combination cutter body, and the axial and radial positioning of the blade group and the cutter body is realized through the positioning groove and the positioning key, which is also convenient for the installation of the blade and the cutter body Disassembly, the present invention is simple in structure, low in manufacturing cost, and convenient to use. The hard alloy profile broach structure has a very high promotional value in the broaching of the tenon and groove of the engine disk parts and the broaching of the blade tenon.

The invention discloses a spherical silo construction method, and relates to the technical field of building construction. The construction method comprises the steps of a step of ring foundation construction, a step of membrane body laying, and a step of painting a polyurethane coating layer in the membrane body. Between the step of ring foundation construction and the step of membrane body laying, the following steps still exist: measuring the positions of preformed holes, and marking the positions on the ground occupied by the ring foundation, after the step of the membrane body laying is completed, the projections of the positions of the preformed holes which are marked on the ground occupied by the ring foundation are projected to the membrane body, and the projection points on the membrane body are marked accordingly. In the step of painting the polyurethane coating layer in the membrane body, the moulds of the preformed holes are placed at the marked points, and painted with the polyurethane layer and / or a concrete layer, after all the painting work is finished, the moulds of the preformed holes are removed, thus the holes are formed above the silo wall or silo cap of the spherical silo in a manner that the integrity of the polyurethane layer and the concrete layer is not undermined. Not only the material is saved, but also the integrity of the polyurethane layer and the concrete layer is not undermined, the overall stress condition is more uniform, the silo produced by the method is more sturdy and durable, and the service life is longer.

The invention relates to a sewage processing control system which comprises a control room, a control host machine mounted inside the control room, a liquid level sensor, a medicine adding device, and a water quality monitoring instrument. The sewage inlet is provided with the liquid level sensor and the water quality monitoring instrument respectively; the liquid level sensor and the water quality monitoring instrument transmit the acquired data to the host machine where the data are processed. If the sewage liquid level is excessively high, the host machine sends out the instruction of reducing the inlet amount of sewage; and if the sewage water quality is not qualified, the host machine sends out the instruction of initiating the medicine adding device to add medicine. The system of the invention can acquire the water quality data in real time and can master the various indexes for the processing procedures in real time so as to ensure that the water quality of the treated sewage reaches the designed standard.

The invention relates to a re-lined and renewed reactor after repair and a manufacturing method thereof which are used in the chemical and pharmaceutical industries and belong to the field of pressure vessels. A damaged glass-lined reactor which originally does not conform to the Supervision Regulation on Safety Technology for Pressure Vessel is repaired to become the re-lined and renewed reactor which comprehensively realizes the Supervision Regulation on Safety Technology for Pressure Vessel and can be repaired and utilized multiple times. The manufacturing method is characterized in that a precisely controlled inner heated electric furnace is adopted to implement staged controlled firing and an integral firing process with jackets; and full-automatic glaze slurry spraying equipment, an equipment large flange reshaping device and an electrical heating and temperature controlling insulating cylinder are adopted for manufacturing. The reactor and the manufacturing method have the following advantages: the reactor initiates and lays a foundation for that the manufacturing technology standards of the glass-lined reactors in China all realize the Supervision Regulation on Safety Technology for Pressure Vessel; the integral quality of the reactor is comprehensively and obviously superior to the current national standard; the reactor steps and is developed to innovate and be ahead of the conditions that the international outer heated electric furnace iron billets have no alternative to secondary forming during manufacturing and the core technology of controlled enamelling has the defect of uneven heating; and the reactor sells well in the international markets with the obvious omnibearing technical, quality and economic advantages and has obvious economic benefits and global market competitiveness.

The invention discloses a formation method for the memory cell of a flash memory. The formation method comprises the following steps of: providing a semiconductor substrate, wherein a floating gate layer is arranged on the surface of the semiconductor substrate, a first opening is arranged in the floating gate layer, the surface of the semiconductor substrate is exposed out of the first opening, the floating gate layer and the semiconductor substrate are mutually isolated via an insulating layer, a control gate layer is arranged on the surface of the floating gate layer, the control gate layer and the floating gate layer are mutually isolated via an interlayer dielectric layer, a mask layer is arranged on the surface of the control gate layer, a second opening is arranged in the mask layer, the second opening is communicated with the first opening, and the surface of the control gate layer is exposed out of the second opening; forming a first side wall on the sidewall of the first opening; forming a second side wall on the sidewall of the second opening, wherein the top of the second side wall is level with the surface of the mask layer; and forming source line layers in the first opening and the second opening by adopting a selective epitaxial deposition process, wherein the tops of the source line layers are not higher than the surface of the mask layer. The formed memory cell of the flash memory is stable in performance.

The invention discloses a step-shaped concrete casting mold assembly and a cast-in-situ construction method, comprising: cleaning the base surface → supporting the side form → pouring the concrete at the lower part of the step → laying a movable die and clamping → pouring the upper part of the step Concrete→Remove the movable die→Tighten the surface of the lower part of the steps→Tighten the surface of the upper part→Conservation→Remove the side formwork and continue the maintenance. Since the present invention adopts the dynamic operation process of "installation later and removal first" of the movable die and the form support method that the 45° contact surface between the movable die and the upper inner mold can be combined and separated, the inner side of the cast-in-place concrete step is completely solved. There is a problem with stencil imprints on the surface. The overall structure of the steps casted by the present invention is complete, without cold joints, and the internal quality meets the design standards; the surface has no template marks, no cracks, no bubbles or spots, pockmarks, etc., and the appearance quality meets the requirements of the specifications, and can be applied to various The cast-in-place stepped concrete project has significant practical significance and good social benefits.