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Granite simulation paint and preparation method thereof
ActiveCN103709875ADoes not increase load pressureLight weightAntifouling/underwater paintsPaints with biocidesEmulsionEther
The invention provides granite simulation paint and a preparation method thereof. The granite simulation paint mainly comprises an emulsion, cellulose ether, aggregate and composite rock slices. The granite simulation paint has very strong pattern creativity and can simulate a plurality of granite textures. Compared with the same type of products, the granite simulation paint has beautiful and lasting effects, strong texture sense, excellent weatherability, fouling resistance, color retention and alkali resistance, is aqueous and nontoxic, utilizes the composite rock slices to replace natural rock slices, and is green and environmentally friendly.
Owner:JIANGMEN CRYSTONE PAINT
Petroleum pipeline laying and mounting construction method
ActiveCN110939785ARealize dockingEasy to transfer and transportPipe laying and repairLifting devicesPetroleum engineeringRolling chassis
The invention relates to a petroleum pipeline laying and mounting construction method, in particular to a petroleum pipeline laying and mounting construction device. The device comprises a crawler type moving chassis, a bearing platform plate fixedly mounted on the crawler type moving chassis, multiple ground-gripping supporting mechanisms fixed to the bearing platform plate, a lifting mechanism arranged on the upper end surface of the bearing platform plate, a feeding conveying mechanism arranged on the lifting mechanism and two self-clamping components arranged on the feeding conveying mechanism and used for clamping a petroleum pipeline; and the ground-gripping supporting mechanisms are distributed and mounted on the two opposite sides of the bearing platform plate. By the aid of the device, the safety during laying construction is improved, and the petroleum pipeline can be sent to the laying and mounting position conveniently and accurately.
Owner:泰州市新滨江开发有限责任公司
Cylinder body structure of air and water cooling engine
ActiveCN103628997AImprove heat transfer performanceImprove connection strengthCylinder headsCylindersManufacturing technologyCooling effect
The invention belongs to the technical field of manufacture of engine parts, and relates to a cylinder body structure of an air and water cooling engine. The cylinder body structure is characterized in that a cylinder sleeve is composed of a cylinder sleeve inner sleeve (4-1) and a cylinder sleeve outer sleeve (4-2), wherein a cooling water cavity (6) is composed of an enclosed space formed between the cylinder sleeve inner sleeve (4-1) and the cylinder sleeve outer sleeve (4-2); a wall of the cylinder sleeve inner sleeve (4-1) is provided with at least two cylinder-shaped ear holes (5) which are vertically communicated, and a cylinder body shell (3) and the outer surface of the cooling water cavity (6), the outer wall surface of the cylinder sleeve outer sleeve and part of the outer wall surface of the cylinder sleeve inner sleeve are combined in a non-gap manner. The cylinder body structure provided by the invention has the advantages that the structure design is reasonable and simple, the manufacturability of manufacturing is improved, the manufacturing cost is reduced, the cylinder body structure has another characteristic that the cooling effect is improved, and meanwhile, the water-leaking hidden danger of the cylinder body structure of the existing air and water cooling engine is overcome.
Owner:LUOYANG NORTHERN ENTERPRISES GROUP
Method for restoring slurry pump casing used for river and sea dredger
The present invention discloses a repair method for the internal pump shell the imported dredger high chromium cast iron mud pump and the internal pump shell the domestic dredger high chromium cast iron mud pump; the rust and burr on the fretted surface of the internal pump shell of the mud pump is removed and angles are ground on a plurality of parts according to requirements. With the short-arc welding of multi-pass welding and skip welding processes, a priming coat of reticular arrangement is welded on the clean internal pump fretted surface of the mud pump; at the same time, the welding seams are beat to remove the stress and avoid crack formation and control the interpass temperature on the priming coat surface. With the short-arc welding of the multi-pass welding and skip welding processes adopted by UTP abrasion welding rod and DC welder, a first abrasion layer, a second abrasion layer, an isolating layer, a third abrasion layer and a fourth abrasion layer are welded on the priming coat and the interpass temperature of every layer is controlled. The repaired internal pump shell of dredge mud pump will not be deformed and the matrix will not be damaged; the welded layers are abrasion and impact resistant; the cost can be saved by 70 to 90 percent; the service life can be prolonged by 3 to 5 times. Therefore, the present invention has great dissemination value.
Owner:李小鸽
Schrader valve and Presta valve combined valve head
ActiveCN102606765AOvercome the inconvenienceSimple structureMultiple way valvesValve housingsEngineeringPresta valve
The invention relates to a Schrader valve and Presta valve combined valve head, which comprises a casing, a rotation part, two O-shaped seal rings and a ball. The casing is provided with a shaft hole, the lateral side of the casing extends outwards to form an end, and the end is provided with a through hole communicated with the shaft hole. The rotation part is provided with a body held in the shaft hole of the casing, two ends of the body are provided with two head respectively, the two heads are arranged outside the casing, two screwing holes connected with a Schrader valve and a Presta valve in a screwed manner are arranged by being inserted in from the outer end faces of the two heads respectively, a holding space is arranged in the middle of the body of the rotation part, the holding space is communicated with the two screwing holes through two through holes, an annular groove is reserved on the outer wall surface of the body of the rotation part in a recessed manner to form an annular air channel which is communicated with the through hole at the end of the casing, and a via hole is arranged on the body of the rotation part at the position of the annular groove and is used for communicating the annular air channel with the holding space. The two O-shaped seal rings are arranged on the body of the rotation part and on two sides of the annular groove. The ball is held in the holding space, semispherical or approximately-semispherical sockets are formed at the positions, communicated with the two through holes, of the inner wall surface of the holding space, and the radius of the ball is smaller than that of each socket and larger than that of each of the two through holes.
Owner:BETO ENG & MARKETING
Aerospace oxygenerator
InactiveCN103072948AExtended service lifeImprove the comfort of the use environmentOxygen preparationMolecular sieveGas cylinder
The invention relates to an aerospace oxygenerator which comprises a case, a compressor, a distribution valve, a gas cylinder and two molecular sieves, wherein a bottom plate for packaging is arranged at the bottom of the case; a compression system box is arranged on the bottom plate; the compressor is supported in the compression system box; a gas inlet mechanism is arranged at the lower part of the front end face and / or the rear end face of the case, and communicated with the compressor by a gas inlet silencer; the compressor is connected with the two parallel molecular sieves by the distribution valve respectively; the two molecular sieves are connected with the gas cylinder by the distribution valve; the distribution valve is communicated with a gas outlet silencer; the gas outlet silencer is communicated with the compression system box; and the compression system box is communicated with an exhaust mechanism arranged at the lower part of the left side face and / or the right side face of the case. The aerospace oxygenerator is compact in structure, convenient, quick, stable and safe to use, easy to dismount and clean, and noise-free; the use comfort can be ensured effectively; and the service life can be prolonged.
Owner:江苏徕普医疗器械有限公司
Core pulling rivet with internally-arranged lock ring
The invention provides a core pulling rivet. The core pulling rivet comprises a core rod, a rivet sleeve, a lock ring and an anvil piece. A limiting table is arranged on the head of the core rod, a broken neck groove and a lock ring groove used for containing the lock ring are formed in the middle of the core rod, and a clamping segment is arranged at the tail of the core rod. The lock ring groove is located between the limiting table and the broken neck groove. The rivet sleeve is mounted on the core rod in a sleeving manner. The tail of the rivet sleeve can be limited by the limiting table of the core rod. The length of the rivet sleeve is larger than the length of the distance between the step face of the limiting table and the broken neck groove. A deformable segment is arranged on the rivet sleeve. The lock ring is made of a material capable of achieving plastic deformation. The anvil piece is mounted on the core rod in a sleeving manner and is provided with a face overlapping with the rivet sleeve and the lock ring in the direction perpendicular to the axial direction. The core pulling rivet can solve the problems that lock ring mounting is prone to failing, and falling off is prone to happening.
Owner:AEROSPACE PRECISION PROD INC LTD
Tuyere tip for both an American tuyere and a French tuyere
ActiveCN102444729ASimple structureReduce volumeOperating means/releasing devices for valvesCheck valvesEngineeringValve seat
The invention relates to a tuyere tip for both an American tuyere and a French tuyere, comprising a shell body with a body part, wherein a shaft hole is disposed in the middle of the body part; a rotary piece held in the shaft hole of the body part of the shell body and capable of rotating, wherein the both ends of the rotary piece project out of the shaft hole of the body part to form head parts capable of being held by fingers, the two head parts are provided with a screwing hole respectively, one screwing hole is screwed with the French tuyere and the other screwing hole is screwed with the American tuyere, and an annular gas passage is formed between the body wall of the rotary piece and the body part of the shell body; two leakage-stopping rings disposed on the body wall of the rotary piece and located at the both sides of the annular gas passage respectively; a penetration hole disposed on the body wall of the rotary piece and at a position corresponding to the annular gas passage, and used for connecting the annular gas passage with a holding space; a valve seat held in the holding space of the rotary piece, and provided with a valve centre towards the screwing hole end of the American tuyere; and a spring disposed in the holding space of the rotary piece, wherein one end of the spring resists against the inner end wall of the screwing hole end of the French tuyere, and the other end of the spring resists against the inner end wall of the valve seat, so that the valve seat is close to the screwing hole end of the American tuyere in a static state.
Owner:昆山十全塑胶五金产品有限公司
Method based on transmission electron microscope common sample table for loading two samples at same time
PendingCN109799253ALow costImprove efficiencyMaterial analysis using wave/particle radiationTest efficiencyTest requirements
The invention belongs to the technical field of transmission electron microscopes and discloses a method based on a transmission electron microscope common sample table for loading two samples at thesame time. The method includes: according to different characteristics of pre-test materials, selecting a proper TEM supporting film carrying net, and dispersing a powder sample onto the supporting film carrying net according to a conventional powder sample preparation method for testing; using a blade to cut the carrying film with a prepared sample in halves; utilizing a self-made TEM sample transfer tool to respectively transfer two samples obtained by cutting to left and right sides or upper and lower sides of the sample table, and recording respective corresponding positions; putting the sample table into a TEM, and testing after vacuum reaches testing requirements. The number of sample changing times of the TEM is reduced effectively, time consumption for sample changing and vacuum waiting is reduced, testing efficiency is improved, and testing cost is lowered; the method is good for stability of the sample in an electron microscope, thereby being conducive to acquiring of high-resolution images, and also good for stable running and maintaining of instrument equipment.
Owner:CHONGQING UNIV
Fixed part and its manufacturing method, combination of radiating devices using the fixed part
InactiveCN101132682ANo risk of falling offStainlessDigital data processing detailsSemiconductor/solid-state device detailsEngineeringMechanical engineering
Owner:FU ZHUN PRECISION IND SHENZHEN +1
Fabricated external wall system and manufacturing and installation method thereof
PendingCN108589974AEffectively fixedImprove insulation effectWallsClimate change adaptationSurface layerKeel
The invention relates to a fabricated external wall system. The fabricated external wall system of a steel structure comprises an external decorative surface layer, a vacuum insulating plate layer, abase layer plate, a keel, a filling layer and an inner wall plate in sequence from outside to inside, the external decorative surface layer is fixed on the base layer plate, and the vacuum insulatingplate layer is arranged between the external decorative surface layer and the base layer plate. The base layer plate and the inner wall plate are separately fixed on the two sides of the keel. The filling layer is arranged in a cavity formed by surrounding of the base layer plate and the inner wall plate and separated by the keel, and the filling layer is a non-pouring filling material. Accordingto the fabricated external wall system of a steel structure, the base layer plate, the vacuum insulating plate or a STP heat preservation and decoration integrated plate can be effectively fixed through a set of elements; and mechanical connection is carried out on each layer, no hidden danger of shedding exists, the safety is improved, and the fabricated external wall system can be easily replaced when damaged.
Owner:QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
Fixing piece and heat dissipating device using same
InactiveCN101568246ANo risk of falling offEasy to fixSemiconductor/solid-state device detailsNutsBiochemical engineeringBody positions
Owner:FU ZHUN PRECISION IND SHENZHEN +1
Integrated wood formwork
InactiveCN103306474ASimple connection structureThe connection structure is stableForms/shuttering/falseworksAuxillary members of forms/shuttering/falseworksSteel tubeSurface plate
The invention relates to an integrated wood formwork. The integrated wood formwork comprises a face plate, a plurality of wood longitudinal beams and a plurality of steel pipe horizontal beams; the plurality of wood longitudinal beams are pressed on the outer side surface of the face plate through the plurality of horizontally arranged steel pipe horizontal beams; a plurality of cotter holes respectively corresponding to the plurality of steel pipe horizontal beams are formed in the wood longitudinal beams; a plurality of U-shaped cotters are inserted in the plurality of cotter holes respectively; and the two ends of each U-shaped cotter are fastened and connected on each steel pipe horizontal beam corresponding to each U-shaped cotter. According to the invention, the integrated wood formwork is formed by locking and pressing the wood longitudinal beams and the steel pipe horizontal beams on the face plate through the U-shaped cotters and 3-shaped clips, and has the advantages that the structure is simple, the connection is stable and firm, the assembly and disassembly are convenient, the service life of the material is long, recoverability is realized and the resource is saved; a plurality of integrated wood formworks can be jointed together and used in a combined manner, so as to meet the requirements of different application specifications; and the applicability is wide.
Owner:TAIXING FIRST CONSTR INSTALLATION
Negative ion generator provided with carbon fiber emitting end
The invention discloses a negative ion generator provided with a carbon fiber emitting end. The negative ion generator comprises a negative high voltage pulse excitation power supply, wherein the negative high voltage pulse excitation power supply is connected with at least one emitting row; multiple carbon fiber bundle emitting heads are arranged on the emitting row in rows; the multiple emitting heads re arranged on a basic strip; a nut is embedded in the basic strip; the basic strip is connected with a bottom box in a buckling manner; the metal heads of the emitting heads adopt two-section structures; one carbon fiber bundle is inserted into the hole of the front section of each metal head and is fixed on the front section of the metal head by soldering; each metal head is fixed through a back section screw rod part; a busbar board abutting on the far end of the screw rod part of each metal head is arranged in the bottom box; a part of a copper-clad layer of the busbar board on a substrate forms a detection line; the detection line is insulated from multiple emitting heads mutually; and when a switched-on copper-clad part of each emitting head is provided with set electric potential, inductive charges are formed on the detection line. The negative ion generator has the beneficial effects of convenient replacement of the emitting heads of the emitting ends, firm welding of the carbon fiber bundles, reliable electrical connection, simple structure and good convenience in detaching without needing to set the detection line independently.
Owner:重庆松池科技有限公司
Leftward and rightward door opening mechanism and refrigerator
ActiveCN106016927AOpen smoothlyClose smoothlyLighting and heating apparatusHingesRefrigerator carGear drive
Owner:HAIER SMART HOME CO LTD
Continuous production method of polyurethane insulation composite slab
InactiveCN101249704AGood heat preservation and energy saving functionCompressive and wear-resistantDomestic articlesHigh densityComposite slab
The invention discloses a method of continuously producing a weatherable polyurethane thermal-insulating composition board. The method comprises the steps of preparing the raw materials for producing the high-density self-mantling weatherable polyurethane foam; closing the mold, casting and frothing using a casting machine to obtain a high-density and high-rigidity weatherable self-mantling polyurethane foam panel; imputing the high-density and high rigidity weatherable self-mantling polyurethane foam panel as a base plate into a polyurethane horizontal frothing machine, and frothing the low-density polyurethane panel on the non-self-mantling side to obtain a weatherable polyurethane thermal-insulating composition board, which is light, safe, reliable, simple in process, and capable of realizing continuous industrial production, construction and assembly.
Owner:JIANGSU LVYUAN NEW MATERIALS
Plane carbon commutator and its manufacture method
InactiveCN101060224ASimple structureReduce manufacturing costRotary current collectorCommutators manufactureCopper conductorEngineering
The provided flat carbon-commutator for dc motor in electrojet fuel pump comprises: an insulation plastic carrier, composite copper conductor members, and a carbon-made member riveted with former conductor members, wherein there is a conventional convex block on back of every carbon-made member, and a milled sector hole on every copper semiconductor for inserting the convex block. The relative manufacture method is simple and convenient.
Owner:ZHEJIANG ANDI HIGH TECH DEVE
Inwards tilting hopper window of curtain wall
InactiveCN102518366AGood indoor visual effectNo risk of falling offSealing arrangementsUnits with parallel planesSash windowEngineering
The invention relates to an inwards tilting hopper window of a curtain wall. The hopper window comprises an upright post, toughened glass, an upper cross beam, a lower cross beam, a curtain wall window sash, an electric starting device and hardware, wherein the curtain wall window sash is arranged on the lower cross beam and can rotate around the lower cross beam; and the electric starting device is connected with the curtain wall window sash and drives the curtain wall window sash to rotate. Compared with the prior art, the inwards tilting hopper window has the advantages of capability of improving indoor visual effect and safety, suitability for large windows and the like.
Owner:SHANGHAI BRIGHT INTELLIGENT CURTAIN WALL
Continuous production method of weather resistant polyurethane insulation composite slab
InactiveCN101249705ACompressive and wear-resistantHigh strengthDomestic articlesHigh densityHardness
The invention discloses a method of continuously producing a weatherable polyurethane thermal-insulating composition board. The method includes the steps of preparing the raw materials for producing the high-density self-mantling weatherable polyurethane foam, wherein the isocyanate in the raw materials adopts HDI, HTDI, IPDI, and H12MDI; closing the mold, casting and frothing using a casting machine to obtain a high-density and high-rigidity weatherable self-mantling polyurethane foam panel; imputing the high-density high rigidity weatherable self-mantling polyurethane foam panel as a base plate into a polyurethane horizontal frothing machine, and frothing the low-density polyurethane panel on the non-self-mantling side to obtain a weatherable polyurethane thermal-insulating composition board, which is light, safe, reliable, simple in process, and capable of realizing continuous industrial production, construction and assembly.
Owner:JIANGSU LVYUAN NEW MATERIALS
Double-layer curtain wall glass
The invention relates to a double-layer curtain wall glass comprising double-layer glass bodies, connection frames and a connector component. The double-layer glass bodies are fixedly connected through the connection frames. The adjacent double-layer glass bodies are fixedly connected through the connector component. The double-layer curtain wall glass can solve the problems that an existing double-layer curtain wall glass is poor in connection effect, inconvenient to install and detach and prone to disengagement after being installed, and since a protective film adhering to the outer surfaceof the double-layer curtain wall glass cannot be protected, the protective film is prone to disengagement due to external factors, and the use performance of the curtain wall glass is influenced. Thedouble-layer curtain wall glass has the advantages of being good in connection effect, convenient to install and detach, capable of protecting the protective film adhering to the outer surface of thedouble-layer curtain wall glass and avoiding the situation that the protective film disengages due to external factors and the like.
Owner:山东雄狮建筑装饰股份有限公司
Left and right door opening mechanism and refrigerator
ActiveCN106766586AOpen smoothlyClose smoothlyLighting and heating apparatusCooling fluid circulationEngineeringRefrigerated temperature
Owner:QINGDAO HAIER REFRIGERATOR CO LTD +1
Carbon fiber negative-ion transmitting end assembly with detection line
The invention discloses a carbon fiber negative-ion transmitting end assembly with a detection line. The assembly comprises a plurality of transmitting heads, the transmitting heads are disposed on a base strip side by side, nuts are embedded in the base strip, and the base strip is buckled and connected to a bottom box; each transmitting head comprises a metal head, each metal head has two-segment structure, a carbon fiber beam is plugged into the front segment of each metal head via a jack and is fixed through tin soldering, and a threaded rod part of the rear segment of each metal head is fixedly connected with the corresponding nut; the bottom box is provided with a bus board, and the bus board abuts against far ends of the threaded rod parts of the metal heads; and the bus board has printed circuit board structure formed by a substrate, part of a copper-clad layer on the substrate form the detection line, the detection line and copper-clad layer part conductive with the transmitting heads are insulated from each other, and, when the conductive copper-clad layer part of the transmitting heads is provided with a set potential, an induction charge is formed on the detection line. The assembly is advantageous in that the transmitting heads of a transmitting end are convenient to replace, and the detection line does not need to be independently disposed; and the assembly has the advantages of firm carbon fiber beam soldering, reliable electric connection, simple structure and convenient assembly and disassembly.
Owner:珠海市高登机械有限公司
Detection and fixing device for multi-tube optical fiber light guiding bundle
InactiveCN109855841ANo risk of falling offGood flexibility testOptical apparatus testingLight guideLocking mechanism
The invention relates to a detection and fixing device for a multi-tube optical fiber light guiding bundle. The device comprises a detecting bottom plate, a fixing device and a detecting device; sliding slots are formed in the right end of the detecting bottom plate; the top end of the left end of the detecting bottom plate is provided with a fixing device; the detecting device is installed on thetop of the right end of the detecting bottom plate; the fixing device comprises a fixing bracket, locking brackets, locking air cylinders, locking connecting plates, a side supporting plate, a supporting telescopic rod, a supporting spring, a supporting curved plate and a locking mechanism; and the detecting device comprises a clamping supporting plate, clamping slide columns, return springs, clamping mechanisms, a detecting motor, a detecting rotating shaft, a detecting air cylinder, a detecting support plate, a detecting mechanism and a rotating shaft connecting plate. According to the prior art, when a multi-tube optical fiber light guiding bundle is detected, the outer end of the optical fiber light guiding bundle needs to be manually held; when the flexibility of the optical fiber light guiding bundle is detected, the risk of the falling off of the optical fiber light guiding bundle may be brought about; and the detection effect of the manual detection of the flexibility of the optical fiber light guiding bundle is poor; and with the detection and fixing device of the invention adopted, the above problems in the prior art can be solved.
Owner:NANJING HECHO TECH CO LTD
Easy-advertisement-replacement advertising lamp box for bus shelter
InactiveCN108550329AAvoid damageKeep it simple and aesthetically pleasingSpecial buildingIlluminated signsBobbinPush pull
The invention belongs to the technical field of advertising devices and particularly relates to an easy-advertisement-replacement advertising lamp box for a bus shelter. A bobbin is arranged at the top of the inner side of a lamp box body, a push-pull rod is connected to one end of the bobbin and connected with a rotation shaft, and the rotation shaft is sleeved with a self-locking bearing; the other end of the bobbin is connected with a control ring, and a groove is formed in the control ring; a rotation handle is arranged in the control ring and provided with a bump matched with the groove in the control ring; the bobbin is connected with an upper positioning tube through a pull rope, through holes are formed in the two sides of the lamp box body, and positioning pins are arranged at thethrough holes; a limit groove is formed in the bottom of the lamp box body and comprises a slit, a lower positioning rod is arranged in the limit groove, advertising base cloth is fixedly connected between the upper positioning tube and the lower positioning rod, and a groove cover for sealing is arranged on the limit groove. According to the lamp box, the process of replacing a poster is extremely simple, a lamp box cover does not need to be opened during replacement, and the box is safer and more reliable.
Owner:河南颇文商贸有限公司
Variable anti-counterfeiting computer hologram prepared based on femtosecond laser
ActiveCN112130439AThe principle of imaging change is simpleEasy to operateInstrumentsFemto second laserHolographic imaging
The invention relates to a variable anti-counterfeiting computer hologram prepared based on femtosecond laser, and belongs to the technical field of laser application. According to the invention, a hologram composed of micro-pit structures of three sizes is processed on a heat shrinkable film through femtosecond laser, information recorded by the hologram is formed by combining computer generatedholograms corresponding to two kinds of optical patterns, and the two kinds of optical patterns are shown under irradiation of the laser. By controlling the heating temperature, the heat shrinkable film shrinks, the micro-pit structure with the minimum size shrinks until the transmittance of incident light is hardly influenced, information recorded by the hologram is changed, and finally only oneoptical pattern is presented, so that the change of hologram imaging content is realized. The problems that single holographic imaging is poor in anti-counterfeiting capacity and a variable holographic imaging manufacturing process and an imaging device are complex and difficult to popularize at present are solved. The method is simple in imaging change principle, achieves integration of packagingand anti-counterfeiting, is high in operability, and can be applied to the field of product anti-counterfeiting and information encryption.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Decorative face accessory
The invention provides a decorative face accessory, which facilitates the unfolding and folding of foot stool parts and can be firmly positioned. The decorative face accessory comprises a decorative mask, a first foot stool part and a second foot stool part, wherein the first and second foot stool parts are pivoted with the decorative mask; positions of the decorative mask corresponding to the eyes of a face respectively have a hollow hole, the two side edges of the decorative mask are respectively provided with a bulged part, and the reverse side of each bulged part is provided with a corresponding groove; and clamping sections which can be attached to the periphery of the head of a user, and clamped on the ears of the user, and position the decorative mask in front of the face extend from one ends of pivoted parts of the first and second foot stool parts, and arched and hook-shaped positioning sections which can be buckled into the grooves so as to enable the first and second foot stool parts to be positioned firmly extend from the other ends of the pivoted parts.
Owner:叶嘉庆
Schrader valve and Presta valve combined valve head
ActiveCN102606765BOvercome the inconvenienceSimple structureMultiple way valvesValve housingsEngineeringVALVE PORT
Owner:BETO ENG & MARKETING
De-molding-free heat preservation structure integrated plate and preparation method and construction method thereof
PendingCN113756478AImprove performancePlay a fastening roleWallsCeramic shaping apparatusMaterials preparationConstruction engineering
The invention belongs to the technical field of building material preparation, and particularly relates to a de-molding-free heat preservation structure integrated plate and a preparation method and a construction method thereof. A first prefabricated structure can be used as an outer formwork, a prefabricated heat preservation module in a second prefabricated structure is used as an inner formwork, the inner formwork and the outer formwork are not needed in the construction process, the construction period is shortened, and the construction cost is reduced. According to the setting mode of a connecting male part in the first prefabricated structure, the connecting male part and the integrated plate are prefabricated together, and the procedure of installing a connecting piece on site is reduced; and through the arrangement of a steel wire mesh and the arrangement mode of the steel wire mesh and the connecting piece, the connecting male part can play a role in fastening the steel wire mesh, so that the overall performance of the integrated plate is improved.
Owner:河北金铎建设工程有限公司 +1
Hoisting wire pulley device for crane
The invention discloses a hoisting wire pulley device for a crane. The device comprises a shell, a connecting plate is welded to the lower end of the shell, a base plate is connected to the lower endof the connecting plate through spring assemblies, a hook lock is fixed to the lower end of the base plate, three shaft rods are sequentially arranged in the shell, pulley bodies are connected to theouter parts of the three shaft rods in a rotating mode, grooves are formed in the outer surfaces of the pulley bodies, meanwhile, each spring assembly comprises spring bodies and two spring seats, andthe two spring seats are fixed to the two ends of the corresponding spring bodies. The device has the advantage that the shell, screw caps, the connecting plate, the spring assemblies, the base plate, a damping pad, the pulley bodies, the shaft rods, nuts, the spring bodies, the spring seats and protective covers are arranged, so that the problems that the safety of a hoisting wire pulley devicefor a crane at the present stage is low in the using process, and goods are prone to shake due to the fact that a pressure buffering device is not arranged can be solved.
Owner:新乡市圣元起重机有限公司
Manufacturing technology of integrated forged steel piston
InactiveCN106438093AReduce forging difficultyReduce investmentMachines/enginesPistonsFriction weldingManufacturing technology
The invention provides a manufacturing technology of an integrated forged steel piston. The manufacturing technology comprises the steps of carrying out rough machining on a forged piston head part and a piston skirt part; smearing a borax soldering flux on a welding area of the piston head part; assembling the piston head part and the piston skirt part, and carrying out heating; and after heating, taking out a workpiece, and naturally cooling the workpiece. After the technology is adopted, weld joints generated through piston friction welding are avoided, the risk that hard grains falling due to the fact that the weld joints are washed through cooling oil are liable to scratch a cylinder of an engine is reduced, the piston head part and the piston skirt part are welded through adopting brazing, the technology is simple, the equipment investment is low, and multiple same or different products can be welded at a time.
Owner:BINZHOU DONGHAILONG PISTON
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