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326results about How to "Even by force" patented technology

Combined-type cable dome structure for elliptic plane with unequal-height boundary

ActiveCN104975670AEasy to layEven by force
The invention discloses a combined-type cable dome structure for an elliptic plane with an unequal-height boundary. The combined-type cable dome structure comprises an outer-ring beam arranged on unequal-height capitals of a lower structure. The outer-ring beam adopts a space-curve form which changes along with the elevation of capitals of the lower structure. The horizontal projection of the outer-ring beam is ellipse. An inner-ring beam is arranged above the middle portion of the outer-ring beam. Inhaul cables and ridge cables are arranged on the outermost ring of the outer-ring beam and the inner-ring beam through a levy-type structure, and inhaul cables and ridge cables are arranged within the outermost ring through a Geiger-type structure. A connecting beam for a balancing cable is arranged on the inner-ring beam additionally, and the balancing cable is arranged between the inner-ring beam and the outer-ring beam additionally. The combined-type cable dome structure can be applied to a structural engineering of which unequal-height horizontal projection of the boundary is an ellipse plane, the structure is forced uniformly, and the stability is strong; node structure is simple, the manufacturing cost is low, and construction is convenient; laying requirements of rigid roofing material can be met.
Owner:TIANJIN UNIV RES INST OF ARCHITECTRUAL DESIGN & URBAN PLANNING +1

2D carbon/silicon-silicon carbide composite material pin preparation method and preparation method and structure of 2D carbon/silicon-silicon carbide composite material pin preform

The invention relates to a 2D carbon/silicon-silicon carbide composite material pin preparation method and a preparation method and structure of a 2D carbon/silicon-silicon carbide composite material pin preform. The pin preparation method comprises 1, preparing a preform through horizontal paving (0 degree)-inclined paving (45 degrees) alternative laying of a 2D carbon fabric, graphite mold-based setting and carbon fiber vertical seaming on the multilayer carbon fabric, 2, depositing a pyrolytic carbon protective layer in the preform, 3, carrying out chemical vapor infiltration (CVI) to obtain a silicon carbide base, 4, cutting a flat blank to obtain a strip-shaped pin blank with the square section, 5, carrying out CVI silicon carbide protection of exposed fibers, 6, carrying out reactive melt infiltration (RMI) treatment, 7, milling the pin blank to obtain a pin with a standard size and 8, carrying out examination to obtain a carbon/silicon-silicon carbide composite material pin finished product. Through combination of CVI and RMI, the preparation method has the advantages of low production cost, short production period, low product porosity, high density and batch production. The ceramic-based composite material prepared by the CVI and RMI has shear strength of 80-100MPa at the room temperature.
Owner:XIAN XINGUI CERAMIC COMPOSITE MATERIAL CO LTD

Cholesteric-phase flexible liquid crystal display device and preparation method thereof

InactiveCN104090409AEven by forcestable structure
The invention discloses a cholesteric-phase flexible liquid crystal display device and a preparation method of the cholesteric-phase flexible liquid crystal display device. The cholesteric-phase flexible liquid crystal display device comprises a light absorption layer, a first flexible substrate, a second flexible substrate, a first electrode, a second electrode, a first orientation layer, a second orientation layer, a liquid crystal mixture layer and a light mask plate. Ultraviolet light acts on the flexible liquid crystal display device through the light mask plate, the liquid crystal mixture layer is provided with a polymer wall of a special structure, and capsulation covering is conducted on liquid crystal molecules through the polymer wall formed through a polymerization reaction, so that the cholesteric-phase flexible liquid crystal display device is formed. Compared with display devices of other types, the cholesteric-phase flexible liquid crystal display device has the advantages of being low in power consumption, small in size, low in cost and the like, a capsulation flexible panel of cholesteric liquid crystals is formed in a special mode, the polymer wall has the specific structure, and the cholesteric-phase flexible liquid crystal display device has good photoelectric performance and display and mechanical overall performance.
Owner:SINOFLEX OPTOELECTRONICS CHUZHOU

Cross cut shears for slitting and leveling flat steel

InactiveCN101875135AEven by forceGuarantee job stability
The invention discloses equipment for a flat steel shaping and machining set, in particular to cross cut shears for slitting and leveling flat steel. The cross cut shears comprise a stand, wherein the stand is provided with a hold-down hydraulic cylinder; the two sides of the stand are provided with upright posts; the upright posts are provided with hydraulic pressing mechanisms; a piston rod of the hold-down hydraulic cylinder is connected to a sliding stand; the sliding stand is arranged on a guide post; the two ends of the guide post are connected to the stand; the stand is provided with a lower knife rest; the lower knife rest is provided with a lower blade; the lower end of the sliding stand is provided with an upper blade; the upper blade consists of two blades which are arranged in a reverse V shape; the hydraulic pressing mechanism comprises a fixed cross beam; the fixed cross beam is provided with a pressing hydraulic cylinder; the two sides of the pressing hydraulic cylinder on the fixed cross beam are provided with guide rods; the lower parts of the pressing hydraulic cylinder and the guide rods on the two sides are provided with pressing blocks; and the lower plane of the pressing block is lower than the lower end of the upper blade. Because the upper blade is arranged by adopting a reverse V-shaped design, a plate is uniformly stressed during the shearing process and the problems of easy lateral bending of a spring, easy pass-line deflection of the plate and the like of a conventional normal oblique blade cutting mechanism during the pressing of the spring are prevented; and thus the working stability of the cross cut shears is ensured and the shearing quality and the service life of the blade are greatly improved.
Owner:江苏远大机械科技有限公司

Tire carrying and destacking-stacking system and tire warehousing stacking method

ActiveCN103434850AAvoid increased labor costsEven by force
The invention discloses a tire carrying and destacking-stacking system, which comprises a support mechanism, a carrying mechanism and a power device, wherein the support mechanism comprises a first longitudinal beam and a second longitudinal beam which are arranged in parallel, and a support vertical column for supporting the first longitudinal beam and the second longitudinal beam; the carrying mechanism comprises a movable transverse beam and a carrying manipulator; the movable transverse beam stretches across the first longitudinal beam the second longitudinal beam, and is in slide fit with the first longitudinal beam and the second longitudinal beam along the longitudinal directions of the two longitudinal beams; the carrying manipulator is arranged on the movable transverse beam, and is in slide fit with the movable transverse beam along a transverse direction; the carrying manipulator comprises a grasping part used for grasping a tire, and a lifting assembly for controlling the grasping part to move vertically; the power device comprises a longitudinal power device used for driving the movable transverse beam to move along a longitudinal direction, and a transverse power device used for driving the carrying manipulator to move along a transverse direction. According to the tire carrying and destacking-stacking system, full automation of tire carrying and destacking-stacking is realized.
Owner:青岛科捷机器人有限公司

Plastering device of building wall

InactiveCN110094045Aavoid vibrationEven by force
The invention belongs to the technical filed of plastering, and particularly relates to a plastering device of a building wall. According to the following scheme, the plastering device includes a bottom plate, a driving assembly is arranged at the top of the bottom plate, a feeding assembly is arranged at the top of the driving assembly, a plastering assembly located in an discharging opening of the feeding assembly is mounted at one end of the driving assembly, locating frames fixedly connected with the top of the bottom plate are mounted at the bottoms of the output ends of the two sides ofthe driving assembly, supporting assemblies are mounted on the sides, away from each other, of the two sets of locating frames, the interiors of the locating frames sleeve extensible assemblies, and the same top abutting against frame is mounted between the tops of the two sets of the extensible assemblies. According to the plastering device of the building wall, fixing solidity of the whole plastering device is improved to avoid shaking of the plastering device during running, the accuracy of plastering is improved, the problem that when a traditional plastering device uses a vibration mode for plastering, imbalance stress is between a plastering board and the wall is changed is changed, so that a plastering layer is overall flat and has balance stress, plastering layer falling off is avoided, and the quality and efficiency of plastering are improved.
Owner:LUAN VOCATIONAL TECHNOLOGICAL COLLEGE

Cross-plate scaffold

The invention discloses a cross-plate scaffold, which comprises upright pipes, horizontal pipes, an inclined support and a horizontal inclined support, wherein a cross-plate connecting plate is arranged on each upright pipe; each upright pipe passes through a centre hole on the middle part of the cross-plate connecting plate and is fixedly connected with the cross-plate connecting plate; four connecting holes are uniformly arranged at the periphery of the cross-plate connecting plate; the horizontal pipes are connected with the connecting hole at the periphery of the cross-plate connecting plate by horizontal casting connecting devices fixed on the end parts of the horizontal pipes; the inclined support is connected with the horizontal casting connecting devices by an inclined support pin arranged on the end part of the inclined support; the end part of the inclined support is opened, clamped on the upper and lower sides of the horizontal pipes and connected through the horizontal inclined support pin; a plurality of sections of upright pipes are connected through upright pipe connecting pieces; the upper and lower ends of each upright pipe are provided with an adjustable support head and an adjustable base respectively; and each upright pipe is made from a Q345B steel material. The cross-plate scaffold has the advantages of convenient assembly and disassembly, uniform stress and stable support.
Owner:ANHUI ZULIN NEW MATERIALS

Bladder-type storage tank for high concentration hydrogen peroxide

The invention discloses a bladder-type storage tank for high concentration hydrogen peroxide, which comprises a storage tank shell body, an injection discharging component and a thin film liquid bag, wherein the injection discharging component is coaxially mounted inside the storage tank shell body; the injection discharging component is constituted of an end cover, a multi-hole pipe, a fixed disc and a support plate; the end cover and the fixed disc are respectively welded on two ends of the multi-hole pipe; the end cover is connected to a storage tank outlet flange; liquid inlet/ outlet channels are respectively opened on the end cover and the fixed disc; the multi-hope pipe is provided with dense small holes in order to make sure the flow area of a propellant; the fixed disc and a support disc are used for mounting the thin film liquid bag and fixing the injection discharging component; the support disc is designed with a diffusion hole in order to prevent the thin film liquid bag from being impacted directly by the pressurized gas; and the thin film liquid bag is uniform in applied force. The advantages are that the bladder-type storage tank is suitable for storing hydrogen peroxide propellant for a long time; the hydrogen peroxide propellant and the pressurized gas are separated by the thin film liquid bag; the pressurized gas is wide in choice; and the hydrogen peroxide won't be catalyzed and decomposed by the pressurized gas.
Owner:BEIHANG UNIV

High-speed moving parallel mechanical arm with six degrees of freedom

InactiveCN102848383AThe overall structure is symmetricalEven by force
The invention discloses a high-speed moving parallel mechanical arm with six degrees of freedom. The mechanical arm comprises a fixed mount, a movable platform, a three-degree-of-freedom wrist, and six moving branch chains which are arranged between the fixed mount and the movable platform and are of a same structure, wherein the movable platform comprises a central plate, three ball arm seats and three groups of connecting rods; each connecting rod group is composed of two parallel connecting rods with the same length; the ball arm seats are rotationally connected with the central plate through one group of connecting rods to form a group of parallelogram structures; the movable platform is provided with three groups of parallelogram structures; the three-degree-of-freedom wrist is fixedly connected with the central plate; three input axes of the three-degree-of-freedom wrist are arranged coaxially or in parallel and are parallel to a rotating axis on the central plate; three groups of gear mechanisms are arranged in the three groups of parallelogram structures; and the rotation of the connecting rods in each group of parallelogram structures relative to the central plate or the parallel movement of the ball arm seats relative to the central plate is converted into the controllable movement of the three-degree-of-freedom wrist.
Owner:天津大学中原先进技术研究院(开封)有限公司

Outer door opening and closing structure for large high and low temperature environmental test chamber

The invention discloses an outer door opening and closing structure for a large high and low temperature environmental test chamber, and belongs to the technical field of large high and low temperature test chamber outer door driving. The outer door opening and closing structure for the large high and low temperature environmental test chamber comprises a doorframe, a top horizontal rail, a bottom horizontal rail, a door leaf, a door leaf moving framework, a door leaf horizontal movement driving mechanism and door leaf vertical driving mechanisms. The doorframe is fixed to the outer framework of the test chamber, the top horizontal rail is arranged on the outer framework on the upper portion of the doorframe, the bottom horizontal rail is arranged on the ground below the doorframe, the size of the door leaf is matched with that of the doorframe, the door leaf moving framework is hinged to the outer side of the door leaf, the door leaf horizontal movement driving mechanism is fixedly connected to the door leaf moving framework, and the door leaf vertical driving mechanisms are evenly distributed on the door leaf moving framework. Through the combined function of the door leaf horizontal movement driving mechanism and the door leaf vertical driving mechanisms, the function of opening and closing an outer door and the function of heat preservation and sealing in the work process are achieved.
Owner:SHANGHAI JIAO TONG UNIV +1

Bi-directional sealing elastic tri-eccentric butterfly valve

InactiveCN102943885AEven by forceLow friction and torque
The invention relates to a bi-directional sealing elastic tri-eccentric butterfly valve which has the characteristics that a packing seat, a packing component and a packing gland are successively installed to a packing box of the valve body and are fixed by locking nuts and screw rods, and then, the packing box is sealed; the packing component is pretightened by tightening the locking nuts on the screw rods, and a valve plate is fixedly connected with a valve rod through a straight pin; the axis of the valve rod is eccentric with the center of the valve plate and the center of the sealing surface of the valve plate, and the tapered axis of the sealing surface of the valve plate deflects from the cylindrical axis of the valve body; a thrust ring is installed between the valve body and the valve plate, vertical positioning is performed based on the upper and lower surfaces of the axis housing on the back surface of the valve plate as well as the stepped surfaces of the thrust ring, and the valve plate rotates around the valve rod to close or open the valve. The bi-directional sealing elastic tri-eccentric butterfly valve has the advantages that the sealing surface of the valve plate has uniform stress, and the friction and the torque are low, thereby reducing wear and effectively prolonging service life; sealing pressure ratio of a sealing ring to the valve plate can be increased to realize bi-directional sealing, and mediums cannot leak from the connection between the sealing ring and a pressing ring or the valve body.
Owner:WUXI SMART AUTO CONTROL ENG CO LTD

Rock landslip waterpower starting indoor simulation test method

InactiveCN102435497AEven by force
The invention discloses a rock landslip waterpower starting indoor simulation test method, which belongs to the field of geology calamity forecast technology. The method includes the following steps: a rock test piece containing a real potential slip surface is fetched; the potential slip surface is regarded as the boundary; upper and lower rocks are respectively filled into a sample frame and a sample box, and a cement and a mortar are filled into the sample frame and the sample box; component forces of the gravity parallel to the slip surface and vertical to the slip surface of a simulationlandslip leading edge part to be simulated are regarded as the transverse load initial value and the vertical load initial value; the water pressure of underground water in a slope to a potential slip body in reality is replaced by maintenance of the transverse load and reduction of vertical load value on the potential slip surface; when the displacement rates of the upper sample frame of the rock test piece and an upper rock of the potential slip surface solidified in the frame relative to the potential slip surface are suddenly increased and continuously increased, the landslip is already started, meanwhile the accumulation minimizing amount of vertical load value is equal to the water head height value, that is the starting water head value of the simulation rock landslip. The method can relatively accurately discover the impending landslip state of rock slope.
Owner:中铁西南科学研究院有限公司

Multifunctional low-dimensional photoelectric material detection platform

The invention provides a multifunctional low-dimensional photoelectric material detection platform, effectively solving problems in the prior art. The detection platform comprises a base and is characterized in that a first clamping hand is mounted on the top surface of the base, a rack groove is formed in the right end of the top surface of the base, an arc-shaped rack is slidably arranged in therack groove, a second clamping hand is mounted on the arc-shaped rack, a rotary rod is mounted on the inner bottom surface of the base, a driving gear is mounted at the top of the rotary rod, a driven toothed disc located below the driving gear is mounted on the rotary rod, a sleeve sheathes the rotary rod, the top of the sleeve is connected with a transmission toothed disc, the bottom of the sleeve is connected with a driving toothed disc, and the transmission toothed disc is connected with a motor. The detection platform provided by the invention realizes stretching and bending on a solar cell panel by virtue of the first clamping hand which can move left and right and a second clamping hand on which the arc-shaped rack is mounted as well as a pressure bar, so that the solar cell panelonly bends at the pressure bar and can not be stretched; and by virtue of the sleeve which moves up and down, different detection effects can be achieved, and solar cell panel strength detection efficiency is improved.
Owner:ZHENGZHOU UNIVERSITY OF AERONAUTICS
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