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71results about How to "Sufficient connection strength" patented technology
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Hollow glass curtain wall with invisible frame and hollow glass plate for use in curtain wall
The invention provides a hidden framing hollow glass curtain wall, comprising upright pillar, cross beam and hollow glass block set on the upright pillar and cross beam. The hollow glass block contains inner glass plate and outer glass plate, round which there is structural glue used to connect inner and outer glass plates. There are inserting parts, whose length is far from less than the length of relative glass plate side, in the structural glue respectively. There are assembling slots in inserting parts and locating structure along the thickness direction of hollow glass plate. Connectors inserting into the assembling slots is set on said hidden framing hollow glass curtain wall and said connector is connected with upright pillar and cross beam. The invention changes the method that the glass of hidden framing glass curtain wall is formed to glass parts by structural glue necessarily and maintaining time for structural glue and relative machining procedure for structural glue and assistant frame is canceled so that unit cost is decreased largely. Construction process is quickened while quality danger generated by structural glue and assistant frame is reduced.
Owner:浙江中南幕墙科技股份有限公司
Heat convection testing method and system for composite insulator including artificial defect
InactiveCN103941126AReduce the chance of damageAvoid disconnectionThermometer detailsThermometers using electric/magnetic elementsInternal temperatureEngineering
The invention provides a heat convection testing method and a system for a composite insulator including an artificial defect. The testing method comprises the steps of fixedly embedding a temperature measuring probe in the composite insulator and enabling the temperature measuring probe to be located on the junction face of a silicone rubber sheath and an epoxy resin core rod; adopting a direct current constant voltage source to perform power supply for the resistance defect of the composite insulator; utilizing the temperature measuring probe to perform real-time detection on the internal temperature of the composite insulator in the power supply process, recording the internal defect temperatures under different currents and using an infrared temperature measurement device to shoot and record the surface temperature distribution situation of the composite insulator; and performing compilation and analysis on recorded data to obtain the relation of the outer surface temperature rise and internal actual temperature rise of the composite insulator. The temperature measuring probe improvable in temperature and a special fixing method are adopted, reliable connecting strength, insulating strength and heating power can be achieved, and the measurement accuracy is finally ensured.
Owner:SHENZHEN POWER SUPPLY BUREAU
Testing apparatus for automatically measuring marine structure anchoring system stiffness
ActiveCN101231223AOvercoming difficulties in manual operationCompatible with the working environmentMaterial strength using tensile/compressive forcesMooring systemWorking environment
The invention provides a mooring system rigidity automatically measuring and testing device of an ocean structure and belongs to the ocean engineering technical field. The device comprises a model movement control component, a model connecting component and a turntable, wherein, the model movement control component comprises two convex steel plates, two straight circular tubes, two parallel angle irons, five sliding blocks, a servomotor and a guide screw, the two sides of the lower ends between the two convex steel plates are welded with the two parallel straight circular tubes, the two sides of the upper ends between the two convex steel plates are welded with two parallel angle irons, the guide screw is arranged between the two convex steel plates, the servomotor is positioned outside the convex steel plate on the right side and is welded with the extension parts of the two parallel angle irons, the servomotor is connected with the guide screw by a pin, the guide screw is sleeved by a sliding block, the lower end of the sliding block is welded on a square steel plate, the four corners of the square steel plate are welded with the other four sliding blocks with the same forms, the four sliding blocks are respectively sleeved on the two straight circular tubes. The invention overcomes the difficulty of the manual operation, can automatically measure the rigidity of the mooring system in the water and corresponds with the real working environment.
Owner:SHANGHAI JIAO TONG UNIV
High-speed feeding mechanism
ActiveCN102114513APlay an inhibitory roleReduce vibrationMetal-working feeding devicesPositioning devicesEngineeringHigh velocity
The invention relates to a high-speed feeding mechanism belonging to the field of press machines, and comprising a feeding workbench arranged on a stand, wherein a Y-axis driving mechanism is arranged on the feeding workbench; the upper side of the Y-axis driving mechanism is connected with a beam; the beam is connected with an X-axis driving mechanism; the length direction of the beam is vertical to the Y axis and parallel to the X axis; the Y-axis driving mechanism is a driving mechanism with double servo motors and double lead screws; and the X-axis driving mechanism is a gear rack transmission mechanism. The high-speed feeding mechanism can reduce the vibration of the whole device and ensure smooth running of the device. Matched with a weight reduction design of the beam, the whole feeding mechanism is light in weight, thus ensuring high-speed, accurate and smooth feeding. The high-speed feeding mechanism provided by the invention can feed materials at high speed smoothly, obviously improves the work efficiency, and can be used on a numerical control turret punch press.
Owner:JIANGSU JINFANGYUAN CNC MACHINE CO LTD
Detachable adjustable basket device
InactiveCN101734584AMeet the requirements of daily safe useExpand the range of functionsLifting devicesWork functionTruck
The invention discloses a detachable adjustable basket device, which can be connected at the top end of a multistage telescope arm (5) of a crane or a truck mounted crane. The basket device mainly comprises a connecting arm (3), a basket arm connecting shaft (8), a basket arm connecting frame body (14), a basket (2) and the like and is provided with a leveling cylinder device and a left-right rotating device (12), the leveling cylinder device is used for leveling the basket (2) artificially and manually, the left-right rotating device (12) is capable of artificially shaking a movable handle so that the basket rotates with a certain angle leftwards or rightwards around a left-right rotation axis (13) so that the basket well approaches the position for working, the basket works safely and more conveniently. When the crane or the truck mounted crane does not need the working function of the basket, the detachable adjustable basket device is detached integrally.
Owner:HUNAN ZOOMLION SPECIAL VEHICLE
Post structure
InactiveCN104364537AEasy loading and unloadingPrevent looseningFoldable tablesStowable tablesEngineeringMoving parts
[Problem] To design for convenient storage / transport of a table, display case, etc. when not in use by quick removal of posts from the tabletop and / or base plate thereof. [Solution] A post structure in which a rotationally moving part is fitted into a stationary part wherein: a base configuring the stationary part is fastened to the table top and / or base plate, a short cylindrical interlocking projection juts out from the base, an insertion hole is drilled in the bottom face of the interlocking projection and helical surfaces that each slope gently are formed on both sides of the insertion hole; meanwhile, the moving part is fixed on the end of the post, a cross plate is made to bridge the post in the diameter direction almost at the end thereof, and a T-shaped locking rod is provided to stand substantially at the center of the cross plate; and by inserting the interlocking projection of the stationary part into the inner circumference of the post of the rotationally moving part while inserting the fastening rod of the T-shaped locking rod in the insertion hole of the bottom face and turning the post around the axis, the fastening rod is tightened onto the helical surface while the rotationally moving part is fastened to the stationary part. Grooves are provided on the helical surface at equal angular intervals in a radiating pattern.
Owner:KYOSHIN SANGYO
Hidden pipe connector for modifying saline-alkali soil
InactiveCN106465587AHigh strengthImprove salt removal abilitySoil lifting machinesSleeve/socket jointsAlkali soilArchitectural engineering
The invention discloses a hidden pipe connector for modifying saline-alkali soil, and belongs to the technical field of engineering drainage. The connector comprises an inner sleeve pipe. The outer wall center position of the inner sleeve pipe is provided with a connection part. The outer wall of the connection part is provided with an outer sleeve pipe. A hollow cavity is formed between the inner sleeve pipe and the outer sleeve pipe. A hidden pipe is inserted in the hollow cavity. Through the arrangement of the outer sleeve pipe and the inner sleeve pipe the hollow cavity is formed. One end of the hidden pipe is plugged in the hollow cavity. At the same time an exhaust device is employed to empty the air in the hollow cavity. When the hidden pipe has a potential to be plugged out, a vacuum condition is formed between the inner sleeve pipe and the outer sleeve pipe, thus preventing the hidden pipe from being plugged out even further, and ensuring the enough connection strength of the hidden pipe connector. The connector has the advantages of being simple in structure, reasonable in design, strong in practicality, and convenient in operation. The connection strength of the hidden pipe connector is high, the sealing property is good. The service life is long and the market promotion prospect is tremendous.
Owner:SHANDONG SUNWAY LANDSCAPE TECH
Motor stator producing process
InactiveCN108233644AReduce manufacturing costReduce processing difficultyManufacturing stator/rotor bodiesWinding machineElectric machine
The invention discloses a motor stator producing process and aims to combine a producing process with a winding process without a high-precision automatic winding machine. The motor stator producing process comprises the following steps: 1, performing lamination processing so as to obtain a plurality of unit tooth pieces, and producing a plurality of stator tooth parts from the unit tooth pieces through a stamping process; 2, putting insulating parts into the stator tooth parts, and winding coils on the insulating parts; 3, assembling the stator tooth parts with the wound coils into a completestator, completing wiring of the coils, and sleeving connecting parts of the coils by insulating protection tubes; 4, integrally connecting two adjacent stator tooth parts through welding. The process has the beneficial effects that the stator is formed by assembling and welding modularized stator tooth parts, the stator tooth parts are already wound with coils before welding, and a high-precision automatic winding machine is not used, so that the cost can be reduced, the process difficulties can be reduced, meanwhile the stator space can be relatively reasonably utilized by the modularized stator tooth parts, and the size of a motor can be reduced.
Owner:NINGBO DECHANG ELECTRICAL MACHINERY MFG CO LTD
Vehicle interior board and manufacturing method therefor
InactiveCN104024053AEasy to produceSuppresses the occurrence of poor assemblySynthetic resin layered productsSuperstructure subunitsOn boardElectrical and Electronics engineering
Provided is a vehicle interior board that is equipped with a foldable hinge section, has a small number of components and excellent productivity, and is lightweight and very strong. This vehicle interior board is equipped with: first and second boards (10, 20) that are constructed by forming hard foamed polyurethane layers (13, 23) in spaces that are respectively sandwiched by pairs of thin plates (11, 12, 21, 22); and a connecting member (30) that comprises a porous structure having a recessed groove (34) and is partially placed inside the spaces. The hard foamed polyurethane layers (13, 23) are also formed in gaps (18, 19, 28, 29) between the thin plates (11, 12, 21, 22) and the connecting member (30) so as to connect the respective boards (10, 20) and the connecting member (30) together. Consequently, the respective boards (10, 20) can be formed and connected together into one body during the formation process of the first board (10) in order to form a foldable, lightweight, and very strong vehicle interior board (1). As a result, the number of components can be reduced, the manufacturing process can be simplified, and the productivity can be improved.
Owner:MORIDEN
Electronic paper
InactiveCN102047176AImprove flexibilitySufficient connection strengthNon-linear opticsElectricityEngineering
Provided is an electronic paper comprising two flexible substrates (1 and 2) facing each other, at least one of which is transparent, partitions (4) for partitioning the space between the two flexible substrates into a plurality of cells, and a display medium formed as particle groups and filled into the plural cells, so that the display medium is electrically driven to display information such as an image. The partitions are constituted of inter-substrate gap retaining members (4-1) arranged continuously between the two flexible substrates, and partition members (4-2) arranged discontinuously with a predetermined spacing between the two flexible substrates. As a result, a flexible panel structure can be obtained to provide the electronic paper which has a constant inter-substrate gap and a sufficient joint strength.
Owner:BRIDGESTONE CORP
Vehicle interior board and manufacturing method therefor
InactiveCN104024054ASimplify the production processPoor control assemblySynthetic resin layered productsVehicle componentsOn boardHigh intensity
Provided is a vehicle interior board that is equipped with a foldable hinge section, has a small number of components and excellent productivity, and is lightweight and very strong. This vehicle interior board is equipped with: a first board (10) that is constructed by forming a hard foamed polyurethane layer (13) in a space that is sandwiched by a pair of thin plates (11, 12); and a second board (20) that comprises a porous structure having a recessed groove (24) formed on one of the main surfaces (20b) thereof and is partially placed inside the space and connected to the first board (10). The hard foamed polyurethane layer (13) is also formed in gaps (31, 32) between the thin plates (11, 12) and the second board (20) in order to connect the respective boards (10, 20) together. Consequently, the respective boards (10, 20) can be connected together into one body during the formation process of the first board (10) in order to form a foldable, lightweight, and very strong vehicle interior board (1). As a result, the number of components of the vehicle interior board (1) can be reduced, the manufacturing process can be simplified, and the productivity can be improved.
Owner:MORIDEN
Method for increasing number of columns of loading on container vessel
ActiveCN106240757AIncrease the number of loadsGuaranteed constant widthAccommodation for deck loadsMechanical engineeringBody type
The invention discloses a method for increasing the number of columns of loading on a container vessel. A main body adopts the container vessel, an upper deck is arranged on the container vessel, a plurality of deck pillars are arranged on the outer side of the lower surface of the upper deck, 40-foot containers or 20-foot containers are placed on the upper deck, a plurality of binding bridges are arranged on the 40-foot containers or the 20-foot containers in a matched manner, two binding rods are arranged on the binding bridges in a matched manner, and an oblique support is mounted on the outer side surfaces of the deck pillars. On the premise that a conventional loading form of containers on the upper deck is kept basically not changed, loading of one column of containers is added to each of two boards by adding the oblique support structure on the support pillars of the original board edge, so that the total loading quantity of the containers is substantially increased, the molded breadth of a vessel body below the upper deck is kept unchanged, the oblique support beyond the molded breadth is added on dependence of the pillar structure on the board edge of the upper deck, and the added breadth can be used for accommodating a column of containers.
Owner:NANTONG COSCO KHI SHIP ENG
Gear transmission motor and robot gear transmission motor
ActiveCN101093015AInhibition of expansionLarge formation spaceGearboxesMechanical energy handlingGear transmissionFlange
Disclosed is a geared motor, which arranges the connecting hole and the mounting hole in reason and connects the motor and reducer organically, and is compact and easy to assemble and has an adequate connecting strength. The motor shell main body (the lateral end face of the reducer in the execution mode) and the reducer flange form a square. The square edge extended line of the motor shell main body is crossed to the square edge of the reducer flange. A motor connecting hole is disposed in the radial inner side of the square top for connecting the motor shell main body and the input lateral cover of the reducer (reducer flange). A installing hole is disposed in the corresponding position of the radial outer side of the square edge of the motor shell main body of the reducer flange for installing the reducer on the object machine.
Owner:SUMITOMO HEAVY IND LTD
Template structure for reserving equipment basic embedded bolt hole in cast-in-place concrete
InactiveCN108118893ASufficient connection strengthFirmly connectedForms/shuttering/falseworksUltimate tensile strengthSteel plates
The invention relates to the technical field of building construction, and discloses a template structure for reserving an equipment basic embedded bolt hole in cast-in-place concrete. The template structure comprises a reserved hole box formed by fixedly connecting bottom and peripheral steel plates, wherein the reserved hole box is fixedly arranged in a concrete base; the inside of the reservedhole box is used for casting internal concrete; the internal concrete is used for fixing a foundation bolt. By adopting template structure, a mounting hole for an embedded bolt can be reserved directly in the concrete base, and the reserved hole box does not need to be removed and is fixedly connected with the concrete base for whole use; moreover, sufficient connection strength can be ensured, and stable connection between the reserved hole box and the concrete base as well as between the internal concrete and the reserved hole box can be realized.
Owner:CHINA MCC5 GROUP CORP
Door fence for children
ActiveCN103643886APrecise connection structureAvoid children's handsGates/doorsHinge jointEngineering
A door fence for children comprises a door fence body. One end of the door fence body is hinged to an outer frame through a hinge joint piece, and connecting pieces are connected outside the outer frame. The position of the whole door fence for the children is fixed through the at least two connecting pieces. The door fence further comprises a hinge joint portion, wherein the hinge joint portion is hinged to the side, opposite to the hinge joint piece, of the door fence body. A lap joint portion is arranged at the position, corresponding to the hinge joint portion, of the outer frame, and the door fence body is in an open state or a closed state when the hinge joint portion is matched and connected with the lap joint portion. A groove is formed in the other side, opposite to the hinge joint portion, of the lap joint portion, a reinforcing piece is arranged in the groove, and the connecting pieces penetrate through the reinforcing piece to be connected with the outer frame. The door fence is precise in connection structure, the problem of the hand pinching of the children can be effectively solved due to the designed connection structure, the width of the door fence can be increased freely at the joint of the door fence and lengthening pieces, and sufficient connecting strength can be ensured. Through the reasonable structure design, cost is saved, and product value is maximized.
Owner:浙江丽童家居有限公司
Frog assembly and turnout structure
InactiveCN111996844AGuaranteed Frog PerformanceReduce the difficulty of casting processingRail switchesAlloy steelStructural engineering
The invention provides a frog assembly and a turnout structure. The frog assembly comprises wing rails and a fork heel rail, and the wing rails comprise a first wing rail and a second wing rail; the fork heel rail comprises a first fork heel rail and a second fork heel rail, and one end of the first fork heel rail is inserted into one end of the first wing rail; one end of the second fork heel rail is inserted into one end of the second wing rail; a point rail is included, is arranged between the first wing rail and the second wing rail and is positioned at a joint of the wing rails and the fork heel rail; and the point rail is connected with the wing rails and the fork heel rail through a first connecting part. The invention provides the frog assembly. The wing rails, the point rail and the fork heel rail are arranged to be a detachable structure and the three parts are connected and fastened through the first connecting part. Compared with an integrated alloy steel frog, by using thefrog assembly and the turnout structure of the invention, the performance of the frog is guaranteed, meanwhile, casting machining difficulty of the frog assembly is reduced, manufacturing cost of thefrog assembly is decreased, and in addition, a transportation process of the frog assembly can be more convenient through a detachable structural design.
Owner:CHINA RAILWAY CONSTR HEAVY IND
a children's gate
ActiveCN103643886BPrecise connection structureAvoid the problem of children pinching handsGates/doorsLap jointEngineering
A door fence for children comprises a door fence body. One end of the door fence body is hinged to an outer frame through a hinge joint piece, and connecting pieces are connected outside the outer frame. The position of the whole door fence for the children is fixed through the at least two connecting pieces. The door fence further comprises a hinge joint portion, wherein the hinge joint portion is hinged to the side, opposite to the hinge joint piece, of the door fence body. A lap joint portion is arranged at the position, corresponding to the hinge joint portion, of the outer frame, and the door fence body is in an open state or a closed state when the hinge joint portion is matched and connected with the lap joint portion. A groove is formed in the other side, opposite to the hinge joint portion, of the lap joint portion, a reinforcing piece is arranged in the groove, and the connecting pieces penetrate through the reinforcing piece to be connected with the outer frame. The door fence is precise in connection structure, the problem of the hand pinching of the children can be effectively solved due to the designed connection structure, the width of the door fence can be increased freely at the joint of the door fence and lengthening pieces, and sufficient connecting strength can be ensured. Through the reasonable structure design, cost is saved, and product value is maximized.
Owner:浙江丽童家居有限公司
Electrode and metallic vapour discharge lamp
InactiveCN1741245AImprove welding strengthSmall discreteGas discharge lamp detailsAlloyOptoelectronics
An electrode of the present invention includes a first electrode part that is in a rod shape and a second electrode part that is in a rod shape and has a smaller diameter than that of the first electrode part, with the first and second electrode parts being welded and integrated with each other in a state in which ends thereof are brought into contact. In the electrode, the first electrode part is made of a conductive cermet, the second electrode part is made of tungsten, and in a welded portion where the first and second electrode parts are welded, an alloy layer comprising molybdenum composing the conductive cermet of the first electrode part and tungsten of the second electrode part covers the whole surface of an end of the second electrode part. Furthermore, the present invention also relates to a metal vapor discharge lamp, which has aluminous tube including a main tube with a discharge space, tubules connected at both ends of the main tube, and electrodes respectively inserted into the tubules.
Owner:PANASONIC CORP
Steel-concrete bridge body and assembling construction process thereof
InactiveCN110700077AGuaranteed reliabilityGuaranteed assembly effectBridge structural detailsBridge erection/assemblyArchitectural engineeringCantilever
The invention discloses a steel-concrete bridge body and an assembling construction process thereof. The beam body is a composite beam formed by longitudinally connecting a plurality of prefabricatedsegmental box girders; each segmental box girder comprises a concrete top plate, a concrete bottom plate, a vertically-arranged middle web plate and a pair of side web plates. The middle web plates and the side web plates are corrugated steel web plates; temporary matching pieces are fixed to the side edges of the corrugated steel web plates. After the temporary matching pieces corresponding to the adjacent corrugated steel web plates are mutually connected, the side edges of the corresponding corrugated steel web plates are mutually matched and attached; the side web plates incline by a certain angle so as to form an inverted trapezoidal structure with the concrete top plates and the concrete bottom plates, and flange cantilevers horizontally extending out of the inverted trapezoidal structure are arranged on the two transverse sides of the concrete top plates. Accurate positioning between the box girders can be achieved only through connection between the temporary matching pieces, then the assembling effect between the box girders is guaranteed, the positioning efficiency is greatly improved, and meanwhile the positioning reliability can be guaranteed.
Owner:CCCC SHEC FOURTH ENG
Magnetic connecting structure of motorcycle helmet air window
InactiveCN102293472AEasy to replace by yourselfSimple connection structurePermanent magnetsHelmetsMetal sheetUltimate tensile strength
The invention provides a magnetic connecting structure of a motorcycle helmet air window. The magnetic connecting structure is characterized in that an air window is fixed on a helmet shell to form the vent channel of the motorcycle helmet; the connecting structure comprises magnetic devices which are respectively fixed on the air window and the helmet shell and are mutually attracted and fixed by magnetic force; and the magnetic device can be a magnet or a combination of the magnet and a metal sheet. The connecting structure provided by the invention is not only simple in structure and convenient for popularization, but also is convenient for a user to replace a damaged air window by self while providing enough connecting strength, therefore, the service life of the helmet is prolonged, and the money of a consumer is saved.
Owner:JIANGMEN PENGCHENG HELMETS
Ergonomic chair
The invention relates to an ergonomic chair which comprises a backrest, a cushion and a bracket, wherein the backrest comprises a frame and mesh cloth fixed on the frame; the middle of the frame is bulged towards the cushion; a headrest inserting slot is formed at the upper end of the frame; a dismountable headrest is inserted into the headrest inserting slot; a waist support inserting slot opposite to the headrest inserting slot in position and having the same structure is formed at the lower end of the frame; the headrest can be inserted into the waist support inserting slot; an inserting strip is arranged at the lower end of the headrest; a rack is arranged on the side face of the inserting strip; and internal teeth matched with the rack are arranged in the headrest inserting slot and the waist support inserting slot; a connecting piece is arranged at a connecting part of the backrest and the end face of the cushion; and connecting bolts are arranged in a penetrating manner and fixed in positions, facing towards the lower end face of the frame of the backrest, on the lower side of the connecting piece. According to the chair, the headrest capable of being mounted and dismountedfreely is mounted at the upper end or the lower end of the backrest, so that the ergonomic chair is freely converted between a chair and a deck chair; and a person, regardless of sitting or lying, ismore comfortable.
Owner:北京奥凯文仪家具有限公司
Photovoltaic module
PendingCN114256359AThe effect of reducing the efficiency of absorbing lightSmall sizeSemiconductor devicesPhotovoltaic energy generationEngineeringUltimate tensile strength
The photovoltaic module comprises a substrate provided with grid lines, the grid lines comprise main grids and auxiliary grids, the main grids intersect with the multiple auxiliary grids, the main grids are welded to welding spots of the substrate through welding wires, the first welding spots are located at the two opposite ends of the main grids, and the second welding spots are located between the adjacent first welding spots. The diameter of the welding wire is x, the length of the second welding spot is y, the width of the second welding spot is z, and x, y and z meet the following functions that y is larger than or equal to 1.15 * (1.3 x + 0.19) and larger than or equal to 0.85 * (1.3 x + 0.19), and z is larger than or equal to 1.2 * (0.993x + 0.143) and larger than or equal to 0.8 * (0.993x + 0.143). By optimizing the diameter of the welding wire and the size of the second welding spot, the size of the second welding spot can be reduced under the condition that the second welding spot has enough connection strength, so that the shielding of the second welding spot on the surface of the substrate is reduced, the influence of the second welding spot on the light absorption efficiency of the substrate is reduced, and the actual use requirement is better met.
Owner:ZHEJIANG JINKO SOLAR CO LTD +1
Optical fiber and optical fiber coupler, erbium-doped optical fiber amplifier, and optical waveguide using the same
InactiveCN100347574CReduce connection lossSufficient connection strengthOptical fibre with polarisationOptical fibre with multilayer core/claddingOptical fiber amplifiersErbium doping
An optical fiber comprising a core of quartz glass containing at least germanium, provided at the center of optical fiber, an inside cladding of high diffusion coefficient provided coaxially with the core around the core and an outside cladding of low diffusion coefficient provided around the inside cladding, wherein the core contains germanium in a concentration of about 200% or more of that of the inside cladding to thereby enable connection to an optical fiber of different MFD, such as a single mode optical fiber or an erbium-loaded optical fiber, with low connection loss and with satisfactory connection strength.
Owner:THE FUJIKURA CABLE WORKS LTD
Centrifugal pump volute for cavitation suppression and design method and installation method thereof
PendingCN114017391AIncrease pressureReduce low pressure areaPump componentsDesign optimisation/simulationDecreased pressureEngineering
The invention discloses a centrifugal pump volute for cavitation suppression and a design method and an installation method thereof, wherein the centrifugal pump volute comprises a volute body, the volute body is provided with grooves, the grooves are annular grooves and radial grooves, and the annular grooves or the radial grooves are formed in the inner side of the volute body; and fluid is accumulated in the grooves, the pressure of the position where leakage vortexes are located is improved, a low-pressure area generated by the leakage vortexes is reduced, and cavitation is restrained on the premise that hydraulic characteristics such as lift efficiency are not reduced basically. According to the design method, the grooves are designed, and the positions, the shapes and the sizes of the grooves are determined. According to the installation method, a shell, a first side plate and a second side plate are mounted according to the design result, the manufacturing quality of the shell, the first side plate and the second side plate can be conveniently controlled, the annular grooves or the radial grooves can be conveniently formed in the second side plate, the positions and the shapes of the grooves can be conveniently controlled, and meanwhile it is ensured that the width and the depth of the grooves meet the design requirement.
Owner:ZHEJIANG HANYI ELECTROMECHANICAL CO LTD
Connecting structure for wall scaffold
PendingCN108316636AEasy to pre-processShorten the construction periodScaffold accessoriesFalseworkEconomic benefits
The invention discloses a connecting structure for a wall scaffold. The connecting structure for the wall scaffold comprises embedded parts and auxiliary parts, the embedded parts and the auxiliary parts are embedded in a wall, the embedded parts do not protrude from the wall, and the auxiliary parts are provided with connecting rods which can be connected to the scaffold in an overlapping mode. The embedded parts are provided with screw holes, the auxiliary parts are provided with bolts, and the bolts are connected with the screw holes, so that the auxiliary parts are detachably fixed on theembedded parts. The connecting structure has the advantages of high safety performance, fast construction period and good economic benefits. The connecting structure for the wall scaffold is used in the construction field of concrete walls, fair-faced concrete walls and fair-faced fence slabs, and so on.
Owner:GUANGDONG JINHUIHUA GROUP
Anti-air-leakage heat-preservation non-return aluminum titanate lift tube for aluminum alloy low-pressure casting
The invention discloses an anti-air-leakage heat-preservation non-return aluminum titanate lift tube for aluminum alloy low-pressure casting. A mounting plate is coaxially and fixedly arranged at thetop end of an aluminum titanate tube, the bottom end of the aluminum titanate tube is coaxially and fixedly provided with an aluminum titanate filter disc, the top of the aluminum titanate filter discis coaxially provided with a groove, the groove wall of the groove is provided with side holes, bottom holes are formed in the bottom of the groove, the side holes and the bottom holes make the groove communicate with the outer side of the aluminum titanate filter disc, a matched non-return piece is arranged in the groove, the non-return piece moves up and down in the groove and is provided withthrough holes, and projections, which is perpendicular to the bottom of the groove, of the through holes are staggered from the bottom holes. According to the structure mentioned above, the anti-air-leakage heat-preservation non-return aluminum titanate lift tube for the aluminum alloy low-pressure casting has the beneficial effects that in the process of ascending into the lift tube, the aluminumalloy melt enters the aluminum titanate tube through the bottom holes of the groove and the through holes of the non-return piece, so that skimming and filtering of the aluminum alloy melt can be achieved; and the aluminum alloy melt can enter the aluminum titanate tube stably, and thus quality of aluminum alloy low-pressure casting products is improved.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY
Microsurgery sectioning knife and blade
PendingCN110882039AReduce the probability of injuryLittle effortIncision instrumentsAcute angleEngineering
The invention discloses a microsurgery sectioning knife and blade, and the microsurgery sectioning knife comprises a front cutting edge and a tail blade fixing part, the front cutting edge and the tail blade fixing part are an integrated metal part, the cutting edge and the back of the blade fixing part are flat and straight, the thickness a is 0.2 mm-0. 5 mm, the cutting edge comprises a knife point and a cutting edge opening, and the knife point is an acute angle. The front end of the cutting edge is an arc-shaped cutting edge opening and is gradually transited from the arc-shaped cutting edge opening to the straight cutting edge opening from the tool nose, the length b of the edge, where the tool back is located, corresponding to the arc-shaped cutting edge opening is 0.5 mm-1 mm, and the length c of the edge, where the tool back is located, corresponding to the straight cutting edge opening is 1 mm-3 mm. The included angle alpha between the edge where the knife back corresponding to the arc-shaped knife edge is located and the upper edge of the straight knife edge ranges from 5 degrees to 10 degrees, and the included angle beta between the edging grinding face of the knife edgeand the opposite face of the knife edge ranges from 15 degrees to 20 degrees. When the sectioning knife is used under a microscope, better visibility is achieved, the puncture force passing through atest knife point is smaller than 0.4 N, soft tissue can be easily punctured, and it is guaranteed that a puncture point is accurately positioned and reverse picking type sectioning is smoothly carried out.
Owner:BEIJING BOHAIKANGYUAN MEDICAL DEVICES
Fixing device for armrest of automobile seat and automobile seat
PendingCN114435212AReduce packaging volumeSufficient connection strengthArm restsStoolsCar seatMechanical engineering
The invention discloses a fixing device for an armrest of an automobile seat and the automobile seat, the fixing device comprises a fixing protruding part connected to the lower portion of the armrest and fixing concave parts arranged on the two sides of a cushion of the automobile seat, and the fixing concave parts are close to a seat back of the automobile seat. The fixing protruding part can be inserted into the fixing concave part; one of the fixing protruding part and the fixing concave part is provided with a locking protrusion, the other one of the fixing protruding part and the fixing concave part is provided with a locking notch, and the locking protrusion can be clamped into the locking notch, so that the fixing protruding part can be fixed into the fixing concave part. According to the fixing device, enough connecting strength is provided for the armrest and the automobile seat, and assembling is convenient.
Owner:WONDERLAND SWITZERLAND AG
Fabric belt for a machine for producing web material, in particular paper or paperboard
A fabric belt for a machine for producing web material, in particular paper or paperboard, is constructed with at least two belt segments (16, 16') which are produced by weaving on a circular loom, wherein, during weaving on a circular loom, the belt segments (16, 16') are each formed with at least one belt segment seam region (20) which extends in the warp direction (K) and joins two end regions (22, 24, 22', 24') of a respective belt segment (16, 16') to one another which lie in the weft direction (S), wherein, in the fabric belt (26), an end region (24) of a belt segment (16) is joined to an end region (22') of another belt segment (16') in a fabric belt mock-seam region (34), and an end region (22) of a belt segment (16) is connected or is to be connected releasably to an end region (24') of another belt segment (16') in a fabric belt seam region (40).
Owner:VOITH PATENT GMBH
Connection joint structure of prefabricated sandwich side wall and prefabricated laminated bottom plate and construction method of connection joint structure of prefabricated sandwich side wall and prefabricated laminated bottom plate
InactiveCN111173030AEffective waterproofGood strengthArtificial islandsProtective foundationArchitectural engineeringRebar
Owner:SHANGHAI ERSHIYE CONSTR CO LTD +1
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