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80results about How to "Avoid the phenomenon of destruction" patented technology
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Four-point bending beam-based bituminous mixture interlaminar shear strength testing device
InactiveCN107389475AReduce deformationImprove accuracyMaterial strength using steady shearing forcesStrength testingRoad surface
The invention discloses a four-point bending beam-based bituminous mixture interlaminar shear strength testing device. A first support and a third support are arranged at the bottom of a loaded I-shaped beam, the first support is hinged to a first bending beam clamp, and the third support is hinged to a third bending beam clamp; a second support and a fourth support are arranged at the top of a base, the second support is hinged to a second bending beam clamp, and the fourth support is hinged to a fourth bending beam clamp. By regulating the positions of the bending beam clamps and the supports, the four-point bending beam-based bituminous mixture interlaminar shear strength testing device can guarantee that the vertical load applied onto a test piece corresponds to the designed length of a moment arm, and due to the interaction of vertical load and hinging, the interlaminar of a test piece only bears shearing load without the influence from bending moment stress, thus facilitating reasonable explanation and analysis on the interlaminar cementation situation of bituminous pavements in a pure shearing state, and simultaneously lightening the influence of rigidity of the bending beam clamp on testing results.
Owner:SOUTHWEST JIAOTONG UNIV
Seismic simulation shaking table control method used for compensating interaction between test piece and table top
InactiveCN101813552AImprove control stabilityAvoid the phenomenon of destructionVibration testingFrequency bandControl parameters
The invention relates to a seismic simulation shaking table control method used for compensating interaction between a test piece and a table top and improving the reproduction accuracy of seismic record. The control method is characterized in that control parameters of the shaking table are designed by taking all load forms as zero load forms based on the condition that the control parameters of the shaking table are designed by taking the test piece as rigid load; and the counter force generated by the test piece is utilized for compensating the interaction between the test piece and the table top in real time. Compared with a conventional control method, the method has the advantages of improving the stability of the system control to enable the seismic simulation shaking table to be more easily controlled; widening the system controllable frequency band to enable the test range of the shaking table to be wider; and improving the reproduction accuracy of the seismic record to enable the seismic simulation shaking table test to be more scientific.
Owner:BEIJING UNIV OF TECH
Electric detonator initiator
The electric detonator initiator includes bridge filaments, pin wires, span determinator and sealing plug. The pin wires are integral with the base board for the bridge filaments, and each piece of pin wires is formed with one section of pin wire from the sealing plug to the bridge filament welding end and is variable flat cross section structure. The pin wires have their flat parts inside sealing plug, span determinator and welding end. Both the sealing plug and the span determinator are linked structure with several parts. The present invention has simple production process, and the electric detonator initiator has small dispersion of bridge filaments and high side rigidity.
Owner:顾杨
Multifunctional air purifier
InactiveCN108036421AEasy to useKeep healthyMechanical apparatusLighting and heating apparatusActivated carbonWater source
The invention discloses a multifunctional air purifier. The multifunctional air purifier comprises a box body, a sleeve box and a lifting box; an inner cavity of the box body is provided with an air intake fan, a disinfection plate is arranged on the left side of an inner cavity of the sleeve box, and an ultraviolet disinfection lamp is fixedly connected to the top of the inner cavity of the sleeve box through a support. Accordingly, by means of the air intake fan, air enters the inner cavity of the box body, and the air is disinfected and filtered through the disinfection plate; the ultraviolet disinfection lamp and an activated carbon absorption layer, the air becomes fresh and nontoxic, and an inner cavity of a water tank is filled with water; by means of a water pump, water flows intoan inner cavity of a humidifier for humidification, and the air is humidified through output of branched pipes; when the air purifier is moved, the bottom of the lifting box can be exposed through rolling wheels to move the air purifier. Therefore, the air purifier has the advantages of being capable of disinfecting and humidifying the air and moving the air purifier conveniently, health of a useris guaranteed, and the user can use the air purifier conveniently.
Owner:李鹏鹏
Sheet for heat exchanger
The invention discloses a sheet for a heat exchanger and belongs to the technical field of heat exchange devices. The sheet is mainly composed of a base body and heat exchange flow channels machined in the base body through chemical etching, wherein each heat exchange flow channel is divided into a flow distributing channel, a converging channel and curved channels. The flow distributing channels are communicated with the converging channels through the curved channels, the free ends of the flow distributing channels are medium inlets, and the free ends of the converging channels are medium outlets. According to the sheet, the mode that the pair of converging channel and flow distributing channel correspond to multiple curved channels of each heat exchange flow channel is adopted, the heat exchange efficiency at an inlet and an outlet of the heat exchanger is enhanced, and the problem that the heat exchange efficiency is lowered due to increasing of the hydraulic radiuses of the flow channels of the heat exchanger is solved.
Owner:AEROSPACE HIWING HARBIN TITANIUM IND
Real-time monitoring system for structural micro-deformation based on laser range finder
ActiveCN110006359AAvoid the phenomenon of destructionEasy to installHeight/levelling measurementUsing optical meansLaser rangingObservational error
The invention discloses a real-time monitoring system for structural micro-deformation based on a laser range finder, and particularly relates to the field of building monitoring. The system comprisesa cloud platform, wherein the input end of the cloud platform is provided with a monitoring system, the output end of the cloud platform is provided with a monitoring terminal, the connection end ofthe monitoring system is provided with a GPRS module, the monitoring system comprises a laser range finder and a level measuring instrument, and the level measuring instrument is disposed on one sideof the laser range finder. The real-time monitoring system cooperates with the laser range finder and the level measuring instrument by marking points A, B, C and D to remotely monitor the micro-deformation of the building, is convenient to install without contacting the object to be measured to avoid the phenomenon that the building is damaged, real-time monitors the measured object, considers the influence of the laser range finder on the measurement result, reduces the measurement error, makes the value obtained by the electronic level measuring instrument more accurate, improves the measurement precision accurately, and calculates the deformation amount to make the data visual.
Owner:上海潮旅信息科技有限公司
Preparation method of high-temperature composite material sample
ActiveCN105021434AConsistent strengthAvoid the phenomenon of destructionPreparing sample for investigationComposite sampleUltimate tensile strength
The present invention discloses a preparation method of a high-temperature composite sample and belongs to the technical field of composite materials. The preparation method of the high temperature composite material comprises the steps of: designing and processing a mold according to the sample structure; pre-forming a reinforcement sheet on the lower surface of the mold, wherein the reinforcement sheet on the lower surface is made of the same material as the sample; pre-forming a test board; pre-forming the reinforcement sheet on the upper surface of the mold, wherein the reinforcement sheet on the upper surface is made of the same material as the sample; conducting RTM forming on the whole test board to obtain high-temperature composite material sample; and processing the on test board. The reinforcement sheets and the body do not have adhesive secondary curing interface, the adhesive surface shear strength is consistent with test piece body material layer, so as to avoid the destruction of the adhesive surface in the test process.
Owner:HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
Flower pot fixing device
InactiveCN105557367AAvoid the phenomenon of destructionReduce manufacturing costReceptacle cultivationEngineeringMechanical engineering
Owner:CHONGQING GENYU GARDEN LANDSCAPE ENG CO LTD
Method of casting thick-wall casting through sand insulation cold iron
ActiveCN103128252AReduce manufacturing costReduce labor intensityManufacturing engineeringMolding sand
The invention relates to a casting method of a thick-wall casting, in particular to a method of casting the thick-wall casting through sand insulation cold iron. The method sequentially comprises mould manufacturing, modeling, core manufacturing, mould assembling, pouring and falling sand cleaning. The method is characterized in that the sand insulation cold iron is placed on a thermal center portion, namely the thick portion of the casting before modeling, a boss of the sand insulation cold iron is used for fixation, and the boss of the sand insulation cold iron is placed close to a casting format of the casting. After the sand insulation cold iron is placed, quicksand is conducted, comprehensive tiny compaction of moulding sand is conducted through a vibration ramming platform, the mould is opened after being placed for two hours, and after mould assembling, iron liquid after nodulizing inoculation is poured into the mould. The method is unique in technique, can guarantee quality of the casting, shortens the production period, improves production efficiency, and saves production cost. The method not only saves the production cost, but also reduces casting surface cleaning work and work intensity.
Owner:KOCEL EQUIP
Method for preparing PA66 grafted carbon nano-tube
The invention discloses a method for preparing a PA66 grafted carbon nano-tube. The method comprises the following steps: aminating the surface of a carbon nano-tube by adopting an ammonia plasma technology to obtain CNT-NH2; (2) modifying the surface of the CNT-NH2 by utilizing dialdehyde compounds to formylate the CNT surface to obtain CNT-CHO; and reacting -NH2 on the PA66 surface with the formylated CNT-CHO to obtain the PA66 grafted CNT (PA66-CNT). The method for functionalizing the CNT surface is relatively simple, and can be used for keeping the completeness of the CNT body structure and solving the problem that CNT is easily agglomerated in the PA66 matrix, so that the crystallization performance of the PA66 is effectively improved, and the antistatic performance of the PA66 is remarkably improved. The method has the advantages of low cost, short preparation period, mild reaction conditions, environmental friendliness and the like, and has relatively wide application prospects.
Owner:东莞和兴新材料科技有限公司
Method for anhydrous polishing of KDP crystals
InactiveCN112139859AEasy to operateSimplify the polishing processPolishing machinesGrinding work supportsCarbide siliconMethyl oleate
The invention provides a method for anhydrous polishing of KDP crystals. High-precision and high-efficiency polishing of a KDP crystal material is realized. The anhydrous polishing process is dividedinto rough polishing and fine polishing, and a anhydrous polishing solution comprises methyl oleate, silicon carbide / aluminum oxide mixed abrasive particles and anhydrous sodium carbonate and is divided into an anhydrous rough polishing solution and an anhydrous fine polishing solution; and the difference between the anhydrous rough polishing solution and the anhydrous fine polishing solution is embodied in the viscosity of methyl oleate, the ratio, particle size and concentration of silicon carbide / aluminum oxide mixed abrasive particles, and the particle size and concentration of anhydrous sodium carbonate. Compared with other KDP crystal polishing methods, the method for anhydrous polishing of the KDP crystals has the advantages that a polishing liquid chemical reagent used in the method is non-toxic, low in harm and environmentally friendly, the phenomenon that the KDP crystals are deliquesced in contact with water to be damaged is effectively avoided in the polishing process, andthe processing quality of the surfaces of the KDP crystals is effectively improved.
Owner:DALIAN UNIV OF TECH
Shielding tail cover
ActiveCN106936017ASolving Grounding ProblemsFirmly connectedRelieving strain on wire connectionElectromagnetic interferenceEngineering
A shielding tail cover comprises a tail cover shell, a lining, a limiting sleeve, a crimping cylinder, a wire clamp and a screw, wherein a first step hole is formed in the tail cover shell, the lining is a tubular body internally provided with a step hole and externally provided with a cylinder, the limiting sleeve is a cylindrical body in which a plurality of wire core holes are formed, the lining is inserted into the wire core holes of the limiting sleeve, the limiting sleeve is arranged in the first step hole of the shell, the crimping cylinder sleeves an outer side of the lining, and two semi-circular arches of the wire clamp are buckled outside the crimping cylinder and are fastened by the screw. With a structure of arranging the lining in the shell, the problem of cable grounding is solved; the limiting sleeve is used for limiting axial movement of a cable; and with the adoption of the structure of the crimping cylinder and the wire clamp, the cable and the shell are fixed in a radial direction of the cable, so that the cable is stable and firm in connection, the phenomena that the cable is damaged and the shielding layer is damaged are prevented, and the shielding tail cover has the advantages of good shielding performance and high electromagnetic interference prevention capability.
Owner:SUZHOU HUAZHAN SPACE APPLIANCE
Monitoring device for strained condition of pressure dispersion anchorage cable based on force transmitting board
InactiveCN101363762AIntuitive test principleSimple structureTension measurementPre stressEngineering
The invention discloses a pressure dispersion type anchor rope stress state monitoring device based on a force passing plate, relates to a anchor rope stress state monitoring device, mainly solves the force passing problem when the prestress between an expansion plate and an anchor backing plate is stretched and drawn, and effectively avoids the problem that the anchor backing plate can be damaged when the anchor rope is stretched and drawn when the pressure dispersion type anchor rope stress state is monitored. The monitoring device comprises an anchor plate (10), an anchor rope force meter (20), an expansion plate (30), an anchor backing plate (40) and a force passing plate (40). The anchor backing plate (40), the force passing plate (50), the expansion plate (30), the anchor rope force meter (20) and the anchor plate (10) are connected in sequence. The force passing plate (50) is provided with a round ring bass hollow thick round plate. The invention can avoid the phenomena that the anchor backing plate (40) can be damaged, and is suitable for monitoring the artificial side slopes or sliding slopes reinforced by the pressure dispersion anchor rope in the projects, such as high ways, railways, mines, hydropower stations, and the like.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI +1
Gob-side crossheading advanced grouting reinforcement method for high-ground-pressure soft-roof soft-coal and soft-floor coal seam
PendingCN113107489AReasonable settingHigh bonding strengthUnderground chambersUnderground miningPortland cementArchitectural engineering
The invention discloses a gob-side crossheading advanced grouting reinforcement method for a high-ground-pressure soft-roof soft-coal and soft-floor coal seam. The method comprises the following steps of determining a reinforcement range: determining a grouting reinforcement operation and a gob-side crossheading grouting reinforcement range thereof when roadway mine pressure appearance characteristics and similar condition roadway deformation characteristics conform to a preset range, wherein the gob-side crossheading grouting reinforcement range comprises the reinforcement length and the reinforcement part; selecting a reinforcement material: performing the reinforcement operation by using ordinary Portland cement, a high polymer material or a novel inorganic reinforcing material in a way of aiming at a specific reinforcement part; designing a reinforcement scheme: determining the grouting opportunity, and designing a reinforcement mode and hole arrangement parameters; and performing construction according to a reasonable process. A traditional supporting method for the gob-side crossheading of the high-ground-pressure soft-roof soft-coal and soft-floor coal seam is changed, the roadway maintenance is changed from traditional post-repair to advanced active reinforcement, supporting stability of the gob-side crossheading is guaranteed, and phenomena of repair while excavating and repair while mining are avoided.
Owner:SUZHOU JINDING SAFETY TECH CO LTD
Hollow-structure high-cycle fatigue vibration testing device and method
ActiveCN103575491AIncrease success rateReduce procurement costsVibration testingEngineeringStressed state
Owner:BEIJING AERONAUTICAL MFG TECH RES INST
A combined hollow sandwich structure antenna beautification cover
ActiveCN106785416BMeet the wave-transparent functionalityGuaranteed mechanical properties such as anti-delaminationRadiating element housingsBroadbandEngineering
Owner:NANJING FIBERGLASS RES & DESIGN INST CO LTD
Combined type flowerpot storage platform
InactiveCN105379577APlace stableAvoid the phenomenon of destructionReceptacle cultivationSoftware engineeringThreaded rod
The invention relates to the field of gardening tools, in particular to a combined type flowerpot storage platform. The combined type flowerpot storage platform comprises a base and a clamping mechanism, wherein a storage groove used for storing flowerpots is formed in the center of the base, the storage groove is connected with sliding chutes, the sliding chutes comprise a left sliding chute and a right sliding chute, the clamping mechanism is located on the base, the sliding chutes are slidably connected with the clamping mechanism, the clamping mechanism comprises clamping blocks and threaded rods, the clamping blocks comprise a left clamping block and a right clamping block, the threaded rods comprise a left threaded rod and a right threaded rod, the left threaded rod is hinged into the left sliding chute and is in threaded connection with the left clamping block, and the right threaded rod is hinged into the right sliding chute and is in threaded connection with the right clamping block. By means of the combined type flowerpot storage platform, the problem that in the existing gardening process, the flowerpots are easy to topple due to the fact that no fixing device exists, so that the landscape is destroyed is solved, and the combined type flowerpot storage platform is used for fixing the flowerpots.
Owner:CHONGQING GENYU GARDEN LANDSCAPE ENG CO LTD
Structure with prestress assembly type concrete frame-energy consumption support reinforcement arranged outside existing structure
PendingCN110644806AIncrease post-earthquake repair abilityIncrease lateral stiffnessBuilding repairsProtective buildings/sheltersPre stressArchitectural engineering
The invention discloses a structure with prestress assembly type concrete frame-energy consumption support reinforcement arranged outside an existing structure. The structure comprises an externally added frame-energy consumption support structure fixed to an original structure to be reinforced. The external added frame-energy consumption support structure comprises precast beams, precast columns,and precast supports; the precast supports are prefabricated in a manner that concrete is poured to a built-in low-yield-point energy consumption steel plate, reserved connecting parts for connectingare formed in the precast beams, the precast columns and the precast supports, the precast beams and the precast columns are fixedly connected, concrete is post casted on the connecting joints, penetrating prestress ribs are arranged in the precast columns which are fixedly connected in sequence, and two ends of the prestress ribs are anchored. The externally added frame is composed of multiple externally added frame units, and the precast supports are arranged in the externally added frame units. Under the condition of not affecting use of the original structure to be reinforced, the construction efficiency and the reinforcing quality are greatly improved.
Owner:SOUTHEAST UNIV
Cutting device for plastic processing
InactiveCN107877562AHeight adjustableEasy to moveMetal working apparatusArchitectural engineeringEngineering
The invention discloses a cutting device for plastic processing, comprising a base, the top of the base is fixedly connected with a box body, both sides of the top of the base are fixedly connected with a first electric lift-and-retract rod, and the first electric lift-and-retract rod The top of the box is fixedly connected with a horizontal plate, the inner cavity of the box body is provided with a first motor, the output end of the first motor is fixedly connected with a threaded rod, and the right end of the threaded rod is movably connected with the right side of the box inner cavity through a bearing. In the present invention, the height of the cutting device can be adjusted by opening the box body to lift, and the cutting object can be clamped through the cooperation of the casing, the spring and the fixing plate, which is convenient for cutting the cutting object. Through the first motor, The cooperative use of the threaded rod, the threaded sleeve and the support plate can move the second motor and the cutting blade, so the cutting object can be cut automatically, and the cutting device can be moved conveniently through the setting of the support plate and the bracket.
Owner:叶青
Anti-seismic device with overturn-preventing function for road bridge
ActiveCN107974922AAvoid the phenomenon of destructionImprove seismic performanceBridge structural detailsStructural engineering
The invention belongs to the technical field of bridges and discloses an anti-seismic device with an overturn-preventing function for a road bridge. The anti-seismic device comprises a bridge body. Anupper bridge pier is inserted in the bottom of the bridge body; an inner cavity of the bridge body is filled with an elastic filling layer; an inner cavity of the elastic filling layer is provided with a seismic-reduction combined plate; the seismic-reduction combined plate is installed at the top end of the upper bridge pier; a transverse seismic-reduction mechanism is arranged at the bottom ofthe bridge body and connected to the outer wall of the upper bridge pier in a sleeving mode; a connecting pier plate is arranged at the bottom of the upper bridge pier; a lower bridge pier is arrangedat the bottom of the connecting pier plate; a base is arranged at the bottom of the lower bridge pier; and overturn-preventing mechanisms are arranged between the bridge body and the connecting pierplate as well as between the connecting pier plate and the base correspondingly. The good protecting effect on the road bridge is achieved; the phenomenon that the bridge body is inclined due to unbalanced force bearing can be also prevented effectively even during an earthquake; the structure is simple, the anti-seismic effect of the road bridge is strengthened greatly, and the service life of the road bridge is prolonged greatly.
Owner:安徽格瑞恩园林工程有限公司
Driving device for internal inspection of magnetic flux leakage of industrial pipeline and using method of driving device
ActiveCN105736897AAvoid the phenomenon of destructionConvenient and efficient detectionPipe elementsMaterial magnetic variablesHigh pressureMagnetic flux leakage
The invention discloses a driving device for internal inspection of magnetic flux leakage of an industrial pipeline and a using method of the driving device. The device comprises a driving power unit, a guiding and centering unit and a pipeline abutting and clamping unit, wherein the driving power unit is connected with one end of the guiding and centering unit and is used for generating a high-pressure flowing medium; the guiding and centering unit comprises an instrument cover and is used for guiding and centering an internal inspection device, and the internal inspection device enters the industrial pipeline through the instrument cover under the action of the high-pressure flowing medium; and the pipeline abutting and clamping unit is connected with the other end of the guiding and centering unit and is used for realizing seamless abutment of the guiding and centering unit and the pipeline. The method comprises the steps of arranging one driving device at the inlet end of an inspected pipeline to realize transmitting and driving functions of the internal inspection device and arranging the other driving device at the outlet end of the inspected pipeline to realize a receiving function of the internal inspection device. The driving device is simple, convenient and flexible in operation, the damage rate of the internal inspection device can be effectively reduced, and the transmitting, driving and receiving integrated function of the internal inspection device for the pipeline is realized.
Owner:HUAZHONG UNIV OF SCI & TECH
Combined type antenna beautifying cover with hollow sandwiched structure
The invention discloses a combined type antenna beautifying cover with a hollow sandwiched structure. The combined type antenna beautifying cover comprises more than two antenna cover assemblies, wherein each antenna cover assembly comprises a hollow sandwiched wave-transmission region and solid glass steel connecting regions arranged at the two ends of the hollow sandwiched wave-transmission region; special-shaped inserting slot connecting pieces are arranged on the solid glass steel connecting regions; all antenna cover assemblies are connected in sequence through the special-shaped inserting slot connecting pieces to form a closed structure; and the hollow sandwiched wave-transmission region consists of a hollow sandwiched fabric layer and reinforced fabric layers which are compounded on the upper and lower surfaces of the hollow sandwiched fabric layer. The antenna beautifying cover provided by the invention has excellent broadband wave-transmission property and rapid combination function; delamination resistance and other mechanical properties of the antenna cover are ensured; a phenomenon of damage of the antenna cover caused by wind load in the use process can be avoided; the antenna beautifying cover has excellent characteristics of low loss, high wave transmissivity and other electrical properties, and light weight and high strength; and meanwhile, the problem that rapid connection of the existing antenna cover with a hollow sandwiched structure cannot be realized in the prior art is solved.
Owner:NANJING FIBERGLASS RES & DESIGN INST CO LTD
Buffering and energy dissipation device for slope protection
The invention discloses a buffering and energy dissipation device for slope protection and belongs to the field of slope protection. The device is mainly composed of a chuck, a casing pipe used for accommodating the chuck, and a clamp, wherein the two ends of a through hole in the casing pipe is in different sizes, the larger end serves as a casing pipe head, the smaller end serves as a casing pipe body, and in this way, the chuck can only be placed in through the casing pipe head; the chuck is a conical cylinder, and the size of an internal channel of the chuck is identical with that of a rope; the clamp is composed of an upper clamp body and a lower clamp body, the structure and size of the upper clamp body are totally identical with those of the lower clamp body, the upper clamp body is mainly composed of a strip-shaped plate and a clamping part, a fixing hole is formed in one end of the strip-shaped plate, the other end of the strip-shaped plate is fixedly connected with the clamping part which can be arranged on the casing pipe head in a sleeving mode, a groove is formed in the clamping part, and the size of the groove is matched with the external profile of the casing pipe head. By the adoption of the device, damage caused by high local stress of a slope protection system and overloading of other components in the system can be avoided.
Owner:SICHUAN OST SLOPE PROTECTION ENG +3
5G signal base station equipment capable of providing self-protection according to external environment
ActiveCN112040341AEasy to useAvoid burning phenomenonWireless communicationSelection arrangementsRatchetEngineering
The invention belongs to the technical field of 5G signals, and particularly relates to 5G signal base station equipment capable of providing self-protection according to the external environment. A supporting frame is fixedly connected to the upper surface of a supporting seat, a signal seat is fixedly connected to the upper surface of the supporting frame, and mounting seats are fixedly connected to the left side and the right side of the signal seat. A power source body is fixedly connected to the interior of the signal seat, an air bag base is fixedly connected to the upper surface of thepower source body, a ratchet plate is movably connected to a position, located in the signal seat, of the upper surface of the air bag base, a buffer base is movably connected to the upper surface ofthe ratchet plate, and rotating gears are engaged with the left side and the right side of the ratchet plate correspondingly. And the outer surfaces of the rotating gears are rotationally connected with an L-shaped rod, and one end of the L-shaped rod penetrates through the interior of a protective seat. When the base station equipment is used, the angle between adjacent signal plates is increased, so that the signal plates can better receive signals, and the phenomenon that the signals of the base station are not good in rainy days is solved.
Owner:徐正才
Self-tie steel-wood combined joint and mounting method
ActiveCN113152666AImprove integrityImprove energy consumptionBuilding constructionsMortise and tenonArchitectural engineering
The invention relates to the field of building structures, and discloses a self-tie steel-wood combined joint and a mounting method. The self-tie steel-wood combined joint comprises a self-tie combined column, combined beams and beam column reinforcing kits. The self-tying combined column comprises a central column body and peripheral tie columns located on the outer side of the central column body, and the central column body and the peripheral tie columns are in mortise and tenon connection to form a square column body. Flange plates of the combined beams are in mortise and tenon connection with webs; The flange plates are in mortise and tenon connection with the peripheral tie columns. Each beam column reinforcing kit comprises two column outer ring plates, and the column outer ring plates are arranged on the self-tie combination column in a sleeving mode and connected with the flange plates through bolts. According to the self-tie combined column, every two surrounding tie columns are tied, the central tie column and the surrounding tie columns are tied mutually, and the integrity and the energy dissipation capacity of members are improved; The energy consumption form of the self-tie combined column is mainly mutual staggered friction of different parts of the self-tie combined column in the vertical direction, and the phenomenon that a single member is damaged can be avoided.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY
Blood agitation device
PendingCN107551902AReasonable structureFunctionalRotating receptacle mixersEngineeringBreak the glass
The invention discloses a blood agitation device. The device comprises an agitating base, a base and a fixing rack, wherein a groove is arranged in the middle of the upper surface of the base, the agitating base is arranged in the groove in the upper surface of the base, a motor is arranged below the agitating base, and a fixing ring is fixed at the outer ring of the lower end of the agitating base. In the device, the motor drives the agitating base to rotate, so as to mix a trace amount of blood in a glass tube, so that the device has a stirring function, thereby saving time and effort, and preventing the blood in the glass tube from contacting other devices; due to limiting mechanisms arranged above and below the glass tube as well as on the right and left of the glass tube, the glass tube can rotate stably on the agitating base, so that the structure is stable, the blood is not spattered easily, the glass tube is hard to break and is convenient to use; a fixing sleeve can be adjusted in height at any time according to the actual length of the glass tube, thereby being used extensively; and the blood is agitated by using only a centrifuging force in rotation of the agitating base, so that the internal structure of the blood is not damaged. The blood agitation device is suitable for promotion.
Owner:重庆开奇科技发展有限公司
A plate for a heat exchanger
ActiveCN105180705BAffect the service lifeImprove heat transfer effectLaminated elementsPlate heat exchangerEtching
The invention discloses a sheet for a heat exchanger and belongs to the technical field of heat exchange devices. The sheet is mainly composed of a base body and heat exchange flow channels machined in the base body through chemical etching, wherein each heat exchange flow channel is divided into a flow distributing channel, a converging channel and curved channels. The flow distributing channels are communicated with the converging channels through the curved channels, the free ends of the flow distributing channels are medium inlets, and the free ends of the converging channels are medium outlets. According to the sheet, the mode that the pair of converging channel and flow distributing channel correspond to multiple curved channels of each heat exchange flow channel is adopted, the heat exchange efficiency at an inlet and an outlet of the heat exchanger is enhanced, and the problem that the heat exchange efficiency is lowered due to increasing of the hydraulic radiuses of the flow channels of the heat exchanger is solved.
Owner:AEROSPACE HIWING HARBIN TITANIUM IND
Trimming and leveling device for house building prefabricated wallboards and using method thereof
InactiveCN112405880AAdjust leveling needsAdjust to meet leveling needsWorking accessoriesStone-like material working toolsFixed frameLaser sensor
The invention discloses a trimming and leveling device for house building prefabricated wallboards and a using method thereof. The trimming and leveling device comprises a vehicle body; a fixing rectangular groove is formed in the inner side wall of the vehicle body; a fixing frame is slidably connected with the inner side wall of the fixing rectangular groove; a grounding plate body is welded tothe lower surface of the fixing frame; a telescopic frame is welded to the upper surface of the grounding plate body; and a fixing sleeve is welded on the upper surface of the grounding plate body. Through the vertical installation of a guide rail shell and cooperation with the stably grounded grounding plate body, leveling can be directly carried out by means of a mechanism. Meanwhile, the leveling requirements of the different prefabricated wallboards with different heights can be met through adjustment by means of the cooperation of the telescopic frame and a top tray. Meanwhile, the top tray can achieve the limiting effect on a push rod, so that the phenomenon that a saw disc continues to advance upwards, and consequently dangerous accidents or wall damage is caused is avoided; and through the cooperation of laser sensors and inductance patches, the positioning and leveling of a uniform horizontal plane can be provided in the cutting and leveling process of a row of prefabricated wallboards.
Owner:王恩宁
High and low temperature resistance antibacterial tube for conveying domestic drinking water and preparation method of high and low temperature resistance antibacterial tube
InactiveCN106369230AAvoid the phenomenon of destructionGood light transmissionSynthetic resin layered productsRigid pipesInfraredWater source
The invention provides a high and low temperature resistance antibacterial tube for conveying domestic drinking water. As the inner and outer layers are mainly made of a same polypropylene raw material, the phenomenon that a composite tube is destroyed due to department can be prevented; the outer layer is white, and the inner layer is ash blond, thus the self light transmittance of a PP-R tube is effectively improved under the condition of keeping white appearance and the self toughness of plastic, and bacteria are prevented from breeding; the material of the inner layer contains a high-temperature material so as to enable a product not to be liable in deforming and breaking at high and low temperatures; and the material of the inner layer contains mineral powder, and the mineral powder contains tourmaline powder which is a polar crystalline solid with a special structure, thus the material of the inner layer can release electric ions self for a long time and also release air anions and far infrared rays permanently. Therefore, when a water source accesses the product, by virtue of the anions and the infrared rays released by the material of the inner layer, residual chlorine in water can be eliminated, breeding of harmful bacteria is inhibited, organic compounds, inorganic compounds and heavy metal pollution are purified, water molecular motion is accelerated, and the content of mineral substances in water is also increased.
Owner:吴克成
Intelligent distribution box auxiliary device capable of automatically changing protection form according to external environment
InactiveCN112864867AGuaranteed stabilityAvoid destructionSubstation/switching arrangement casingsRatchetClassical mechanics
The invention relates to the technical field of switchboards, and discloses an intelligent distribution box auxiliary device capable of automatically changing a protection form according to an external environment. The device comprises a distribution box base, the interior of the distribution box base is fixedly connected with a protection base, the interior of the protection base is movably connected with a movable rod, and the interior of the movable rod is movably connected with an extension spring. One end of the movable rod is movably connected with a rotating base, and the other end of the movable rod is movably connected with a movable gear; the outer surface of the movable gear is movably connected with a first ratchet plate, one side of the first ratchet plate is movably connected with a compression rod, and the interior of the compression rod is movably connected with a compression spring; and the outer surface of the compression rod is rotationally connected with a lifting rod. When the power distribution box is used, the winding cloth in the winding disc is unfolded, so that a certain protection effect on the power distribution box is achieved, the problem that the power distribution box is damaged by rainwater is avoided, and the effect of automatically protecting the power distribution box in rainy days is achieved.
Owner:徐仁杰
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