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1591 results about "Column structure" patented technology

A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member. The term column applies especially to a large round support (the shaft of the column)...

Under-actuated core column type continuum robot facing narrow space task

The invention discloses an under-actuated core column type continuum robot for a narrow space task, and belongs to the technical field of multi-degree-of-freedom redundant continuum robots. Comprising a driving device, a plurality of motors are used for controlling winding and unwinding combination of a driving rope, flexible movement of a mechanical arm is achieved, and an expected working pose is achieved. And the guide rail is moved to push the platform, linear motion is executed in the lead range, and the mechanical arm is moved to the designated operation range. The continuum mechanical arm main body consists of N mechanical arm units with the same structure and is divided into M joint sections; a rigid-flexible coupling mode is adopted, and a universal joint structure and a core column structure are combined, so that joints can flexibly deflect, and the torsional rigidity and the overall load capacity are improved; and the end effector is used for executing diversified tasks according to operation requirements. The robot provided by the invention has the advantages of high flexibility, large length-diameter ratio, high torsion resistance, high environmental adaptability and the like, and can meet the requirements of detection and operation and maintenance operation in a narrow unstructured space.
Owner:DALIAN UNIV OF TECH

Glass surface wet anti-slip bionic friction pad and preparation method thereof

The invention relates to the technical field of high polymer materials and preparation thereof, and discloses a wet anti-slip bionic friction pad on a glass surface, which is inspired by a micro-nano structure of toe pads of organisms such as tree frogs and long-horned grasshoppers with wet friction increasing characteristics, and a bulge array is added on the surface of a high-friction material, so that the friction coefficient of the friction pad is increased; the microstructure arrays can discharge a water film on the surface of the friction pad under the capillary action in a wet environment, and the effective contact area between solids is increased, so that the friction pad and a friction surface are always kept in a dry friction state, and stable friction force is ensured. The friction pad comprises a connecting layer, a supporting layer and a tail end protruding straight column array, a tail end contact layer is in a hexagonal straight column shape, the diameter of an inscribed circle of a hexagonal micro-column structure ranges from 5 micrometers to 5000 micrometers, column bodies are densely arranged in a hexagonal mode, the height of the column bodies ranges from 10 micrometers to 1500 micrometers, the tail ends of the column bodies are planes, the interval between every two column bodies ranges from 2 micrometers to 600 micrometers, and tight drainage grooves are formed.
Owner:WUXI FANDER WAAL TECHNOLOGY CO LTD

Bridge support column structure reliability design evaluation method

The invention discloses a bridge support column structure reliability design evaluation method, and relates to the technical field of bridge design evaluation, and the method comprises the steps: obtaining a first modeling data set based on a bridge support column structure design drawing, and building a to-be-evaluated three-dimensional model and a finite element model; generating a first simulated traffic flow, performing simulation by applying a load to obtain standard state stress data, and performing screening to obtain a key stress surface; the statically-determinate structure creep force of the key stress surface is calculated, and the evaluated damage life is obtained through calculation based on the statically-determinate structure creep force; generating a second simulation traffic flow, performing simulation to obtain offset state stress data of the key stress surface, and performing calculation based on an offset nonlinear regression equation to obtain anti-offset reliability; establishing an anti-impact reliability performance function, generating a simulation impact combination through a Monte Carlo algorithm, and determining an anti-impact reliability simulation value; and based on the anti-offset reliability and the anti-impact reliability, a fusion robustness value is obtained through calculation, and threshold judgment is carried out to obtain an evaluation result.
Owner:GUIZHOU ROAD & BRIDGE GRP +1

Novel air rib type pneumatic membrane structure

The utility model discloses a novel air rib type inflatable membrane structure which comprises a main body structure formed by combining a plurality of independent air rib inflatable columns side by side from front to back, a grid drawstring structure is laid outside each air rib inflatable column, and each grid drawstring structure is composed of an axial drawstring, an annular drawstring and an inclined drawstring. The grid drawstring structure is provided with connection fixing points on the front side and the rear side of the air rib inflation columns, and the adjacent air rib inflation columns are connected through the connection fixing points. The limitation of the tensile strength of the PVC film material is broken through through the inflatable column external constraint drawstring net, and a mixed structure form of internal air pressure support and external drawstring net pulling is formed, so that the structure form is more stable, and the load resisting capacity is high; the air rib inflatable column structure of the external constraint drawstring net relieves the local stress concentration of the inner arc generated by the stress characteristic of the arc arch column, and the safety of the whole structure is effectively improved. And a modularized assembly structure form is adopted, so that disassembly, assembly and movement are convenient.
Owner:HENAN COACCI INTELLIGENT TECH CO LTD

Ancient building cylindrical structure inclination measurement method considering irregular surface and measurement error

The invention discloses a historic building cylindrical structure inclination measurement method considering irregular surfaces and measurement errors, and the method comprises the steps: measuring the three-dimensional coordinates of measurement points at different section heights of a historic building wood structure cylinder with a cutting or irregular surface; determining an optimal solution after a certain error is removed from the coordinates of the circle center of the section by adopting a self-adaptive random sampling consistency algorithm, then obtaining the central axis of the cylinder according to principal component analysis, and calculating the included angle of the earth normal vector of the central axis of the cylinder, namely the inclination angle of the historic building wood structure cylinder. By using the algorithm, the influence of cutting or irregular surfaces and measurement errors on historic building wood structure cylinder inclination measurement can be eliminated, and the reliability and the accuracy of a measurement result are effectively improved.
Owner:FUJIAN UNIV OF TECH

CT scanning patient supporting framework, device and method based on vertical and horizontal dual-purpose adaptation

The invention discloses a CT scanning patient supporting framework, device and method based on vertical and horizontal dual-purpose adaptation, and relates to the technical field of CT equipment. The direction adjusting supporting structure is arranged on the bottom supporting base structure in a controllable positioning type through connection mode; the two groups of horizontal driving structures are respectively assembled at the top and bottom of the lifting upright post structure; the supporting assembly structure is in transmission assembly connection with the lead screw assembly; and the positioning assembly is arranged on the supporting assembly structure and is connected with the control module through a circuit. The problem that in the prior art, a CT scanning device is poor in adaptability corresponding to different vertical and horizontal states is solved.
Owner:SAINUO WEISHENG SCI & TECH BEIJING

Building three-dimensional model construction method and system based on digital measurement

The invention relates to the technical field of three-dimensional model construction, in particular to a building three-dimensional model construction method and system based on digital measurement, and the method comprises the following steps: carrying out the region separation of building wall surfaces, windows and column structures in data based on collected point cloud data, screening the geometric attributes of each region, and carrying out the matching processing, extracting space contour points, and calculating geometric morphology parameters of multiple regions to obtain a geometric feature mapping table; according to the method, the hierarchy and operability of the data are improved through region separation and geometric attribute matching, so that the three-dimensional model is more accurate when presenting complex building details, design errors caused by insufficient precision of the three-dimensional model are avoided when the practicability and aesthetic property of a building design scheme are evaluated, and the accuracy of the three-dimensional model is improved. Through efficient fitting of the point cloud data and optimization processing of geometric errors, the time cost and potential errors caused by manual adjustment are reduced, and the overall quality of the building model is improved.
Owner:FUJIAN POLYTECHNIC OF INFORMATION TECH

Exoskeleton with adjustable back plate

The present application relates to the field of medical devices, and provides a back plate adjustable exoskeleton, comprising: a column structure and a control module, the column structure is slidably connected with a back plate mechanism, and a lower limb exoskeleton connected with the back plate mechanism, and the back plate mechanism is provided with a back plate which can move up and down relative to the back plate mechanism; further comprising: a binding device arranged on the lower limb exoskeleton and a foot bottom exoskeleton, the foot bottom exoskeleton is provided with a pressure sensor. When the human body wears the exoskeleton and changes from a sitting posture to a standing posture, the back plate mechanism adjusts the back plate mechanism along the column structure to the height matched with the user according to different body shapes of the user; and when the user changes the posture in the walking process in the standing posture, the foot bottom exoskeleton detects the change of the foot bottom pressure, so that the control module can control the up and down movement of the back plate relative to the back plate mechanism according to the foot bottom pressure to adjust the human body posture.
Owner:CHONGQING BIOINTELLIGENT MFG RES INST

Stirrup assembly type concrete beam column structure

The invention discloses a stirrup assembly type concrete beam column structure, which relates to the technical field of building structures and comprises a prefabricated lower column, a prefabricated upper column, a left superposed beam and a right superposed beam, the prefabricated lower column, the prefabricated upper column, the left superposed beam and the right superposed beam are distributed in a cross-shaped beam column structure; unique double-spiral stirrup configuration is applied to the column body, so that the torsion resistance and the bearing capacity are enhanced; the longitudinal bars and the stirrups are reasonably arranged on the superposed beam, so that the bending resistance and the shearing resistance are guaranteed. At the joint, the T-shaped channel steel plates, the fixing blocks and the hinged tension connecting rods form an energy dissipation system, and earthquake energy is effectively dissipated. The column body connection adopts the combination of a full-grouting nodular cast iron sleeve and a frame-shaped steel belt, and is matched with a post-pouring laminated layer to realize rigid connection. The limiting mechanism anchors a T-shaped channel steel plate through a double-end pull rod and a self-locking nut, a limiting clamping plate and a torsion spring form anti-pulling self-locking, the anti-seismic property of the joint is enhanced by combining a hinged tension connecting rod, and the structural reliability is improved.
Owner:HUANGSHAN UNIV

Fabricated steel frame beam column substructure capable of comprehensively defending earthquake and progressive collapse

PendingCN119195337Areduce damageImprove progressive collapse resistanceBuilding repairsGirdersSteel frameSubstructure
The invention belongs to the technical field of structural engineering, and particularly relates to a fabricated steel frame beam column substructure capable of comprehensively defending against earthquakes and progressive collapse. Shearing force and axial tension / pressure generated between the cross beam component and the stand column component are borne through the multifunctional mechanical hinge, the damage degree of the substructure is reduced, and the safety of the substructure is guaranteed; under the action of large earthquakes and giant earthquakes, the multifunctional mechanical hinge rotates and generates plastic deformation to consume energy and consume energy generated by the earthquakes, meanwhile, the pre-tightening suspension component is tensioned, progressive collapse is avoided, and the progressive collapse resistance of the substructure is improved; when the substructure is close to collapse under the action of an earthquake, the pre-tightening suspension component suspends and bears the cross beam component, so that the vertical pulling capacity of the substructure is improved, and the consequence of continuous collapse of the substructure is relieved.
Owner:JINAN UNIVERSITY

Vacuum glass service life prediction method, device and equipment and storage medium

The invention provides a vacuum glass service life prediction method and device, equipment and a storage medium. The method comprises the steps that the actually-measured surface temperature and actually-measured surface heat flow of vacuum glass, vacuum glass structure data, supporting column structure data, the leakage rate and typical meteorological year data of the place where the vacuum glass is located are obtained; according to the actually-measured surface temperature, the actually-measured surface heat flow, the vacuum glass structure data and the supporting column structure data, initial in-cavity gas heat resistance is obtained through calculation; determining an initial vacuum degree corresponding to the initial thermal resistance of the gas in the cavity according to a mapping relation between the vacuum degree and the thermal resistance of the gas; and predicting the service life by using the initial vacuum degree, the glass structure data, the leakage rate, the typical meteorological year data of the vacuum glass location and the service life prediction mathematical model to obtain the predicted service life of the vacuum glass. A model basis can be provided for predicting the service life of the vacuum glass, the prediction result better conforms to the actual service condition, and the prediction accuracy is effectively improved.
Owner:HUNAN UNIV

Distributed connector framework applied to parallel winding type superconducting coil and winding method of distributed connector framework

The invention provides a distributed connector framework applied to a parallel winding type superconducting coil and a winding method thereof, the distributed connector framework comprises an upper framework and a lower framework which are oppositely arranged, the lower framework comprises a lower disc and a central column, and the central column is arranged on the lower disc and is in a spiral protrusion shape; a spiral gap exists between the spiral lines of the central column, the inner end of the strip is embedded in the strip groove and is fixedly arranged in a strip track formed by the spiral gap, and the inner side of the superconducting coil is supported by the central column; the upper framework comprises an upper disc and an outer column, the outer column is arranged on the upper disc and is in a circular-ring-shaped protrusion shape, the outer column and the center column are coaxially arranged and located outside the center column, a gap is formed in the outer column and used for leading out the strip outer end of the superconducting strip, and the outer side of the superconducting coil is supported through the outer column. The spiral central column structure is adopted, the contact area between the end strip and the framework is increased based on the spiral central column structure, the joint resistance of the parallel winding type high-temperature superconducting coil can be further reduced, and the heat loss problem of the joint is effectively relieved.
Owner:SHANGHAI JIAOTONG UNIV

Stepped side wall of railway wagon

The utility model discloses a stepped side wall of a railway wagon, which relates to the technical field of railway open wagons and comprises a side wall plate, an upper side beam arranged at the top of the side wall plate, a plurality of inner side columns arranged on the inner side of the side wall plate at intervals and outer side columns arranged on the outer side of the side wall plate at intervals. Each side wall plate comprises an upper side plate and a lower side plate arranged below the upper side plate, each outer side column is arranged below the upper side plate, and each inner side column is welded to the inner side of the upper side plate and the inner side of the lower side plate; the inner side columns and the outer side columns are the same in number and correspond to each other in position in a one-to-one mode to form a side column structure, and the lower side plates are located between the inner side columns and the outer side columns. And a stepped side wall plate structure is arranged in the lower side plate. The door opening structure is reasonable in design, and prevents the door opening from being deformed and damaged by reducing the space between the side columns and canceling the free surface of the lower side plate at the door opening. The combined side column structure of the inner side column and the outer side column is adopted, the section of the side column is increased, the connecting structure of the side column and the chassis cross beam is optimized, and the external expansion resistance of the side wall is improved.
Owner:CRRC MEISHAN CO LTD

Fabricated beam-column structure for building engineering construction

The utility model discloses an assembly type beam column structure for building engineering construction, which relates to the technical field of building engineering construction and comprises a steel column and a mounting seat fixedly sleeved on the steel column, a mounting groove is arranged at the intersection of the side wall of the mounting seat and the upper surface of the mounting seat, and an inserting groove is arranged on the inner bottom wall of the mounting groove; one end of the cross beam is arranged in the mounting groove, an inserting block matched with the inserting groove in an inserting mode is fixed to the bottom of the cross beam, and the section of the inserting block and the section of the inserting groove are both in a dovetail shape; a fixing plate is further included, the fixing plate is arranged in the mounting groove and slidably connected with the inner wall of the mounting groove, and a lifting assembly is mounted on the mounting base. One end of the cross beam is placed in the mounting groove, the inserting block is matched with the inserting groove in an inserting mode, the cross section of the inserting block and the cross section of the inserting groove are both in a dovetail shape, so that the horizontal movement of the inserting block and the cross beam is limited, and the cross beam is limited through the lifting assembly and the fixing plate, so that the cross beam is rapidly mounted or dismounted.
Owner:WUHAN UNIV

Square steel tube concrete combination column internally filled with stones

The utility model provides a square steel tube concrete combination column internally filled with stones. The square steel tube concrete combination column comprises a square steel tube, a concrete layer and a column core group, the column core group is coaxially arranged in the square steel tube, and the concrete layer is filled in the spare part in the square steel tube; the column core group comprises angle steel, a stone column, a batten plate group and a limiting assembly, the positioning mechanism is used for positioning the array position of the four angle steel, the integrity and the position of the column core column are ensured, the combined column can remarkably improve the axial pressure bearing capacity and the integrity, and the combined column has the advantages of being high in compressive strength, low in manufacturing cost and the like; according to the construction method, local materials are used according to the building characteristics of the Fujian area, waste stone in demolished stone structure buildings is fully utilized in the concrete-filled steel tube combination column structure, the problems of insufficient axial compression strength and bearing capacity of the concrete-filled steel tube combination column structure can be solved, the concrete consumption of a newly-built structure can be greatly reduced, and the construction cost is reduced. The method for reducing the cost and reducing the environmental pollution is a technology which is suitable for the green and sustainable development demand of the society.
Owner:HUAQIAO UNIVERSITY

Primary and secondary fusion complete column-mounted circuit breaker and conductive column structure thereof

The utility model discloses a primary and secondary fusion complete column-mounted circuit breaker and a conductive column structure thereof, and relates to the technical field of column-mounted circuit breakers, the conductive column structure comprises a third conductive column and an insulating column, the insulating column comprises a first insulating column and a second insulating column connected to the lower end of the first insulating column through a spring, and the lower end of the first insulating column is provided with a guide column. A blind hole is formed in the upper end of the second insulating column, a guide sleeve is arranged at the bottom of the blind hole, and the guide column is arranged in the guide sleeve in a sliding fit mode; the runner is arranged on the side wall of the guide sleeve, an orifice at one end of the runner is positioned at the bottom of the inner side of the guide sleeve, and an orifice at the other end of the runner is positioned on the upper end surface of the guide sleeve; the one-way valve is used for controlling fluid in the flow channel, the control is that the one-way valve allows the fluid in the guide sleeve to flow out through the flow channel, the pole-mounted circuit breaker comprises the conductive pole structure, and according to the scheme, the opening time of the pole-mounted circuit breaker can be effectively shortened, and the opening response speed is increased.
Owner:CHENGDU HANDU TECH

Mandrel and piston type liquid-gas buffer

The invention belongs to the technical field of buffers, and particularly relates to a mandrel type and piston type liquid-gas buffer which overcomes the conventional technical prejudice of technicians in the field (generally research and development are carried out in the direction of improving the machining precision of a conical structure), and a conical column structure is improved into an equal-diameter cylindrical structure. The diameter of the cylindrical structure is equal to that of an inner hole in the core shaft seat, a plurality of damping grooves are formed in the shaft rod, and the groove structure is gradually sparse. On one hand, the machining difficulty of the cylindrical structure with the equal diameter and the requirement for the machining precision are greatly reduced, the cost is relatively reduced, in addition, the cylindrical structure and the inner hole in the mandrel base are equal in diameter, the damping grooves are formed in the surface of the mandrel body, the buffering performance is better, the damping groove structure serves as an oil channel, buffering force can be evenly distributed, and the service life of the mandrel is prolonged. And when an impactor with larger kinetic energy impacts, the condition that the mandrel is stuck on the mandrel seat is avoided.
Owner:SHANGHAI AIDEYAN IND CO LTD

Thin-layer low-frequency underwater sound insulation metamaterial

The present disclosure provides a thin-layer low-frequency underwater sound insulation metamaterial, including two cover plates and a sound insulation layer. The sound insulation layer is composed of sound insulation components arranged in an array periodically. The sound insulation components each include a sound insulation unit and four connecting units. The sound insulation unit is of a hollow rectangular column structure. The four connecting units are arranged at four corners of the sound insulation unit. Every two adjacent sound insulation units are connected through the connecting units. A long side wall of the sound insulation unit and the corresponding cover plate have an included angle of 0-90°. The metamaterial can obtain a smaller equivalent acoustic impedance in propagation direction of acoustic waves, and compared with a sound insulation material of a square honeycomb structure with the same thickness, the metamaterial has greatly improved sound insulation performance.
Owner:NAT UNIV OF DEFENSE TECH

Cultivation net cage truss main structure and using method

The invention discloses an aquaculture net cage truss main structure which comprises a base platform structure and a truss structure, and the base platform structure is provided with a stand column structure; the base platform structure is provided with a buoyancy tank assembly and a support reinforcing structure; the base platform structure and the buoyancy tank assembly form a rectangular frame structure. The invention further discloses a using method. The base platform structure and the buoyancy tank assemblies are arranged to form a rectangular frame structure to guarantee the strength of the main structure of the aquaculture net cage truss, the supporting reinforcing frames are arranged in a matched mode to form various supporting structures, the impact resistance of external force such as wind and sea waves is improved, and the overall stability is improved; the buoyancy tank assembly composed of the first buoyancy tanks and the edge buoyancy tanks is used for improving the adjustable efficiency of lifting, preventing the situation of deviation and toppling and improving the stability of lifting, when one of the buoyancy tanks breaks down, only the faulted buoyancy tank needs to be replaced, and the maintenance efficiency and cost are reduced.
Owner:GUANGDONG COSCO SHIPPING HEAVY IND CO LTD

Prefabricated welded water stop steel plate column stirrup penetrating column structure, tool and construction method

The invention discloses a prefabricated welded water-stop steel plate column stirrup column penetrating structure, tool and construction method, and the construction method comprises the following operation steps: step 1, taking a section of water-stop belt steel plate as a column inner plate water-stop belt, and preparing a prefabricated welded water-stop steel plate column stirrup column penetrating tool, the prefabricated welded water stop steel plate column stirrup column penetrating tool comprises a fixing tool and a clamping tool, and a column inner plate water stop belt is fixed to the fixing tool; the invention relates to the technical field of water stop steel plate column penetrating construction, and has the beneficial effects that a column inner plate water stop belt and a multi-bend column stirrup are pre-welded and spliced in a factory through the prefabricated welding water stop steel plate column stirrup column penetrating tool to form a prefabricated assembly; during construction, only the prefabricated assembly needs to be directly sleeved with the longitudinal rib and bound, operation is easy, the construction efficiency is improved, the construction period is shortened, a large amount of welding work does not need to be conducted on a building site, and the safety coefficient is increased.
Owner:SHENYANG XRJ CONSTR ENG CO LTD

Concrete beam column structure locally internally provided with thin-wall steel pipes and mounting method of concrete beam column structure

The invention belongs to the technical field of concrete beam column structures, and particularly relates to a beam column structure locally internally provided with thin-wall steel pipes and a mounting method of the beam column structure. By reasonably arranging the internally-arranged steel pipes and the reinforcing steel bars, the effects of reducing the dead weight of the structure and improving the bearing capacity are achieved. Due to the application of the steel pipe, the bending resistance and the shearing resistance of the concrete member are enhanced, and generation and expansion of cracks are effectively delayed. In addition, as the steel pipe has high strength and rigidity, the structure can still keep stable under the condition of high load, and is particularly suitable for occasions needing high bearing capacity, such as bridges and buildings. The stress characteristics of beam column components are fully considered, and a novel design method for internally-arranged steel pipe concrete is provided. Through detailed analysis of construction details and working principles, professional technicians can implement the method according to description, so that the safety and economical efficiency of an engineering structure are effectively improved. The shear resistance, the bending resistance and the overall stability of the structure are improved.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

A prefabricated column reserved steel bar positioning device

The utility model discloses a prefabricated column reserved steel bar positioning device, which is arranged on the reserved steel bar at the upper end of the prefabricated column structure, and includes a first positioning device and a second positioning device. The first positioning device is arranged below the second positioning device. The first positioning device includes a steel bar frame composed of steel bars, and the edges of the steel bar frame form steel bar positioning holes. The second positioning device includes a hollow steel plate and a hollow bolt. Sliding grooves are evenly opened on the hollow steel plate. Some hollow bolts are vertically penetrated in the sliding grooves, and the remaining hollow bolts directly pass through the hollow steel plate vertically. The lower end of the hollow bolt is limited by a nut. The positions of the steel bar positioning hole and the hollow bolt correspond to the positions of the reserved steel bars respectively. The reserved steel bars pass through the steel bar positioning hole and the hollow bolt in sequence to achieve positioning. The utility model is provided with two positioning devices for positioning, which effectively controls the positioning accuracy of the reserved steel bars of the prefabricated column, and greatly improves the success rate of the one-time installation of the prefabricated column.
Owner:ZHEJIANG YIJIAN CONSTR GROUP

Clamp for quickly assembling high-precision six-axis inertial navigation product

The clamp comprises a shell, the shell is of a hollow tetragonal prism structure with an opening in one end, a positioning groove is formed in the inner bottom wall of the shell and used for positioning the high-precision six-axis inertial navigation product, a fastening bolt set is installed on the side wall of the shell, and the fastening bolt set is connected with the shell. The device further comprises a pressing piece set installed on the high-precision six-axis inertial navigation product, and the fastening bolt set and the pressing piece set are both used for clamping a sensor on the high-precision six-axis inertial navigation product. According to the utility model, inertial navigation products can be quickly assembled, manpower and time are saved, and the production efficiency of the products is improved.
Owner:WUXI LINS-TECH CO LTD

Composite box body structure of draw-bar box

The utility model belongs to the technical field of composite box bodies, and discloses a composite box body structure of a draw-bar box, which comprises a draw-bar box body, and two symmetrical mounting grooves are fixedly connected below the draw-bar box body. Through mutual cooperation of a mounting groove, a clamping block, a clamping column and other structures, the effect of replacing a damaged universal wheel is achieved, during moving, a rotating handle is manually rotated to enable an adjusting block to apply pressure to a connecting block, and the height of a moving wheel is adjusted to the proper size; the elastic force generated by the buffer spring buffers the vibration sense generated by bumpy road surfaces with different heights, and if one rotating handle is damaged, the clamping column needs to be pulled, so that the rotating handle is separated from the mounting groove, and the other intact rotating handle is mounted in the middle of the mounting groove to support the draw-bar box body; through cooperation of the mounting grooves, the clamping blocks and the clamping columns, when the universal wheels are damaged, the universal wheels can be replaced, and the problem that movement is affected is solved.
Owner:PINGHU PENGHAO LUGGAGE BAG CO LTD

Stand column structure of display screen support

The utility model discloses a display screen support stand column structure which comprises a fixing base, a first-level angle adjusting assembly is arranged on the fixing base, a connecting stand column is hinged to the first-level angle adjusting assembly, and the connecting stand column is perpendicular to the fixing base. A second-level angle adjusting assembly is hinged to the side, away from the first-level angle adjusting assembly, of the connecting stand column, and a display screen fixing panel is arranged on the second-level angle adjusting assembly. The utility model belongs to the technical field of display screen supports, particularly relates to a stand column structure of a display screen support, solves the problems that an existing support is complex in connecting structure, and stability and cost are difficult to control at the same time, and achieves the technical effects of improving assembly efficiency and reducing production cost.
Owner:SANCE ERGONOMICS HEBEI CO LTD

A pressure vessel weld grinding and cleaning device

The present invention relates to the technical field of magnetic wall climbing grinding, and in particular to a pressure vessel weld grinding and cleaning device, comprising a main frame, the lower end of which is fixedly connected to four symmetrically arranged support frames, the lower ends of the four support frames are provided with a moving mechanism for ensuring that the device can move on the inner wall of the tank body, the moving mechanism comprises four support bodies respectively fixedly connected to the lower ends of the support frames, rollers are respectively rotatably arranged in the four support bodies, and the side of the support plate is provided with a grinding and scraping mechanism for grinding, scraping and collecting impurities on the inner wall of the cylindrical tank body; the fourth electric telescopic rod is extended and retracted according to the arc surface of the inner wall, so that the lower end of the scraper completely removes the stains on the inner wall surface, and the extension and retraction of the fourth electric telescopic rod can scrape impurities from columnar structures of different curvatures to prevent the heat released when the device is polished from igniting stains.
Owner:BEIJING PRECISION INSPECTION TECHNOLOGY CO LTD

Auxiliary supporting device for installation of building steel structure

The utility model relates to the technical field of steel structures, in particular to an auxiliary supporting device for building steel structure installation, which comprises a supporting platform, the supporting platform is respectively provided with a stable supporting assembly, the top of the supporting platform is provided with a lifting assembly, and the top end of the lifting assembly is provided with an adjusting assembly; the supporting structure has the beneficial effects that the three auxiliary supporting columns are arranged on the outer side of the main supporting column at equal angles, the main supporting column can be supported by the three auxiliary supporting columns from the easy direction according to the triangle stability principle, and compared with a traditional single stand column structure, the supporting structure is more stable, and when the borne steel structure is large in weight, the supporting structure is more stable. A second adjusting ring is moved upwards to a proper position, then a second adjusting screw is inserted into a second inserting hole, when the second adjusting ring is moved upwards, an expansion plate is pushed through a second connecting rod to rotate upwards with a hinge as the axis till the top face of the expansion plate is parallel to the top face of a supporting plate, the supporting area is increased, and the situations such as puncturing are prevented.
Owner:河北艳日辉锦钢结构有限公司

A high speed can device and method for doffing

The application provides a high-speed silk falling and paper tube mounting device, which comprises a lifting box assembly, a main body support frame assembly, a lifting assembly and a moving assembly; the upper end of the main body support frame assembly is a beam structure, the side is a column structure, the moving assembly is rotationally arranged on the beam structure, and the lifting box assembly is slidably connected with the column structure through the lifting assembly; the lifting box assembly has two states, when the lifting box assembly is on the upper side, the moving assembly moves, when the work station is reached, the lifting box assembly moves to the lower side, and the mounting and dismounting of the silk cake or the paper tube are completed. The operation of mounting the paper tube and taking the silk cake can be automatically and efficiently realized, the automation and efficiency of the silk falling and paper tube mounting are improved, and the construction of an intelligent workshop is realized.
Owner:BEIJING AREOSTANARD NEW TECH +1

Anti-seismic frame column structure of concrete building

The utility model relates to an anti-seismic frame column structure of a concrete building. The anti-seismic frame column structure comprises a foundation framework and a concrete filling layer used for wrapping the foundation framework. An anti-seismic piece is arranged on the outer side of the face, close to the outdoor side, of the foundation framework in the height direction of the foundation framework, a plurality of reversely-arranged tying pieces are arranged on the anti-seismic piece, and the foundation framework and the anti-seismic piece are detachably connected through connecting pieces. When the anti-seismic piece and the connecting piece are both arranged in the concrete filling layer, the pulling piece generates pulling acting force in different directions on concrete. According to the utility model, the anti-seismic performance of the frame columns arranged at the corners in the frame structure can be improved.
Owner:CSCEC STRAIT CONSTR & DEV

Fabricated column structure

The utility model discloses an assembly type column structure. Comprising a lower prefabricated column, prefabricated beams arranged on the two sides of the top of the lower prefabricated column, a cast-in-place layer arranged between the lower prefabricated column and the two prefabricated beams, lower connecting steel bars arranged on the lower prefabricated column in an embedded mode, an upper prefabricated column arranged on the top of the cast-in-place layer and a grouting assembly arranged in the upper prefabricated column. Grouting cavities are formed in the positions, corresponding to the upper connecting steel bars or the lower connecting steel bars, of the bottom of the upper prefabricated column, and one ends of the lower connecting steel bars penetrate through the cast-in-place layer to be located in the grouting cavities. The grouting assembly comprises a grouting pipe, an exhaust pipe and a grout outlet pipe which are communicated with the grouting cavity, a sealing rubber plug is arranged on the grout outlet pipe, and the grouting cavity is filled with grout through the grouting pipe. The structure has the advantages of good connection stability and reliability, strong exhaust capacity during grouting, high connection quality, simple and compact overall structure, convenience in construction operation and wide application prospect.
Owner:THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU