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44results about How to "Increased contact surface area" patented technology

Welding fixture for multifunctional electric welding machine

The invention discloses a welding clamp for a multifunctional electric welding machine, and relates to the technical field of welding clamps, the welding clamp comprises a supporting seat and a clamping size adjusting mechanism, first sliding rail sets are symmetrically arranged on the top wall of the supporting seat left and right, and sliding seats are connected to the first sliding rail sets of the supporting seat through first electric sliding blocks in a left-right sliding mode; an adapting mechanism is arranged on the sliding seat, a clamping size adjusting mechanism is arranged on the adapting mechanism, a driving mechanism is arranged on the clamping size adjusting mechanism, and an accurate butt joint mechanism is arranged in the middle of the top wall of the supporting seat. The welding fixture has the advantages that the sliding seat, the adaptive mechanism and the clamping size adjusting mechanism are matched, adaptive adjustment is performed according to the length and size of a to-be-welded pipe fitting, the limiting space is flexibly changed, and the practicability of the fixture is improved; and through cooperation of the adaptation mechanism and the accurate butt joint mechanism, the welding end of the pipe fitting can be further stably clamped conveniently, circumferential continuous welding is facilitated, and the continuity of the welding process is improved.
Owner:JINHUA KUANYAO TOOLS MFG CO LTD

Adjustable knotless orthopedic ligament reconstruction implant

ActiveCN222487740Uincreased contact surface areahigh tensile strengthLigamentsMusclesRing deviceOrthopedic department
The utility model discloses an adjustable knotless orthopedic ligament reconstruction internal implant, which belongs to the technical field of orthopedic implants and comprises a fixing plate, a fixing ring device and a fixing line, and a pair of first threading holes is arranged in the middle of the fixing plate; the fixing ring device comprises a fixing ring and a button fixing piece, the button fixing piece comprises a button body and a retaining ring located on the inner side of the button body, a second threading hole is formed in the retaining ring, a containing groove used for containing the button body is formed in the fixing ring, and a through hole allowing the retaining ring to penetrate out is formed in the bottom wall of the containing groove; the fixing line is wound in the first threading hole and the second threading hole to form a loop ring, the two ends of the fixing line penetrate through the bottom wall of the containing groove and then penetrate out of the containing groove from the side face of the containing groove, and clamping points used for clamping the two ends of the fixing line are formed between the containing groove and the button body. The device is high in tensile strength, accurate in ligament reconstruction positioning and good in fixing effect.
Owner:BEIJING NATON INST OF MEDICAL TECH CO LTD

Evaporative crystallization device based on high-concentration wastewater and zero discharge process

The invention discloses an evaporative crystallization device based on high-concentration wastewater and a zero discharge process, and relates to the technical field of wastewater treatment.The evaporative crystallization device based on the high-concentration wastewater comprises an evaporation tank, and a drainage device is arranged in the evaporation tank; the flow guide device comprises a heat conduction inner barrel fixed in the evaporation tank, an inner ring channel formed in the center of the heat conduction inner barrel, a flow guide pipe fixed in the inner ring channel and a plurality of groups of outer ring channels formed in the heat conduction inner barrel, and the plurality of groups of outer ring channels are sequentially formed from inside to outside by taking the inner ring channel as the center; first water outlets which are arranged up and down are formed between the inner ring channel and the adjacent outer ring channel, and second water outlets are formed between the other outer ring channels. By arranging the drainage device, when entering the evaporation tank, wastewater can sequentially pass through the multiple groups of outer ring channels along the inner ring channel in an S-shaped trend so as to diffuse and flow towards the periphery, so that disorder and stagnation of flow in a traditional system are avoided, and continuous flowability of the wastewater is ensured.
Owner:SHANDONG GOLDEN MEMBRANE RECLAIMED WATER RESOURCES CO LTD

Low-torque pan-tilt camera device

The utility model provides a low-torque pan-tilt camera device which comprises a support, a spherical groove corresponding to a spherical assembly is arranged on the support, the spherical assembly is located on the inner side of the spherical groove, a plurality of tooth grooves are formed in the outer side wall of the spherical assembly, and a plurality of clamping grooves are formed between the tooth grooves and the outer side wall of the spherical assembly. An arc-shaped rack for driving the spherical assembly to rotate is formed; a gear is fixedly arranged at the power output end of the motor, and the gear is meshed with the arc-shaped rack; the camera lens is located on the inner side of the spherical assembly. The utility model has the beneficial effects that the transmission ratio is small, that is, the output rotating speed is high, the torque is small, the shaking of the pan-tilt camera lens in the rotating process is avoided, and the transmission mechanism is suitable for high-speed and small-torque transmission application scenes.
Owner:TIANJIN HUALAI TECH CO LTD

Thermal power generator base

The utility model relates to the technical field of thermal power generation, and discloses a thermal power generator base which comprises a base body, a water circulation assembly arranged on the left side of the base body, a heat dissipation assembly installed on the front face of the base body, a protection assembly installed on the back face of the base body, and a heat dissipation aluminum plate fixedly connected to the inner side of the base body. Cooling water channels are formed in the inner sides of the heat dissipation aluminum plates, the cooling water channels of every two adjacent heat dissipation aluminum plates are communicated through a connecting pipe, the front face of the bottom heat dissipation aluminum plate is fixedly connected with a water outlet pipe, and the back face of the top heat dissipation aluminum plate is fixedly connected with a water inlet pipe. High-temperature air near the heat dissipation aluminum plate is discharged through the mounting hole, and external low-temperature air enters the inner side of the base main body through the sealing frame, so that the temperature of the air near the heat dissipation aluminum plate is reduced, the temperature difference between the heat dissipation aluminum plate and the nearby air is increased, the heat conduction effect is improved, and heat dissipation of the base main body is accelerated.
Owner:XINJIANG TIANCHI THERMOELECTRICITY CO LTD

Exhaust insert for aluminum alloy die-casting die

The utility model provides an exhaust insert for an aluminum alloy die-casting die, and is applied to the technical field of die-casting dies. The exhaust insert for the aluminum alloy die-casting die comprises an insert body which is provided with a plurality of first longitudinal exhaust pipelines in the vertical direction. The first longitudinal exhaust pipeline penetrates through the insert body in the vertical direction; the insert body is provided with a plurality of transverse exhaust pipelines in the horizontal direction; the transverse exhaust pipeline penetrates through the insert body in the horizontal direction; the transverse exhaust pipeline is crossed and overlapped with at least one first longitudinal exhaust pipeline; a plurality of second longitudinal exhaust pipelines are arranged on the insert body in the vertical direction; the top end of the second longitudinal exhaust pipeline communicates with the transverse exhaust pipeline. In this way, the product percent of pass can be improved.
Owner:ZHENGZHOU NISHIN PRECISION MACHINER CO LTD

Copper wire forming device

The application belongs to the technical field of copper foil and particularly relates to a copper wire forming device, which comprises a spraying part provided with a liquid spraying opening, the spraying part being capable of spraying a drawing liquid to the copper wire through the liquid spraying opening; and an extrusion assembly arranged on one side of the spraying part, the extrusion assembly being capable of forming a protrusion on the surface of the copper wire sprayed with the drawing liquid. The application can relieve the drawing stress by spraying the drawing liquid before the protrusion is formed on the surface of the copper wire, so as to avoid the rupture of the copper wire and ensure the continuity of the copper wire winding disc.
Owner:GUANGXI HUITONG NEW MATERIAL TECH CO LTD +1

A bergamot essential oil extraction and separation device

ActiveCN224812515Uincreased contact surface areaImprove condensation effect
The utility model relates to a kind of bergamot essential oil extraction separation equipment.It includes: primary condenser and secondary condenser, the primary condenser is by primary condensing bin, primary condenser pipe, sleeve, liquid supplementing pipe, extraction pipe, air inlet pipe and gas guide pipe constitute, medium water is filled in the primary condensing bin;The secondary condenser is by secondary condensing bin, secondary condenser pipe and exhaust pipe constitute, the main body of the secondary condenser pipe is located in the secondary condensing bin, the secondary condenser pipe is also provided with condensing piece, the exhaust end of the gas guide pipe penetrates the secondary condensing bin, the bottom of the secondary condensing bin is provided with liquid storage part and liquid discharge pipe.The utility model is divided into primary condenser and secondary condenser, so condensing effect can be improved;Primary condenser pipe and secondary condenser pipe in the utility model connect two sets of air compressor, the power of two sets of air compressor is inconsistent, and energy utilization rate is higher, and it is conducive to energy saving and emission reduction.
Owner:ZHEJIANG JINSHOUBAO BIOLOGICAL TECH

Curved surface paint spraying boundary technology

The invention relates to the field of paint spraying, in particular to a curved surface paint spraying boundary technology which comprises the following steps that S1, a first color layer is sprayed to a curved surface structure; s2, removing the first color layer on the second side of the color block boundary; s3, spraying a release interlayer on the curved surface structure, wherein the release interlayer is sprayed on the second side of the color block boundary and the surface of the first color layer; s4, removing the release interlayer on the second side of the color block boundary; s5, spraying a second color layer on the curved surface structure, wherein the second color layer is sprayed on the second side of the color block boundary and the surface of the release interlayer; and S6, removing the release interlayer so as to remove the second color layer sprayed on the surface of the release interlayer, and respectively forming a first color block and a second color block on the first side and the second side of the color block boundary. The multi-color paint spraying device has the effect of conveniently carrying out boundary multi-color paint spraying on the curved surface structure.
Owner:JINYUANKANG (HUIZHOU) IND CO LTD

Central electric heater

The present invention discloses a central electric heater, which relates to the field of thermal energy technology and makes up for the shortcomings of the existing boiler thermal network heating system. The main technical scheme of the present invention is: a central electric heater, the device includes: a furnace body and a heating part; the furnace body includes an upper furnace body and a lower furnace body that are connected as one, the side wall of the upper furnace body is evenly distributed with heat dissipation holes, and the side wall of the lower furnace body is evenly distributed with air intake holes; the heating part includes a heating mechanism, a conveying mechanism, an exhaust mechanism and a heating pipe, the heating mechanism, the conveying mechanism and the exhaust mechanism are respectively installed in the lower furnace body, the heating mechanism is used to heat the heat-conducting medium, the exhaust mechanism is used to drive the air inside the furnace body to flow upward, the heating pipe is installed in the upper furnace body, and a plurality of fins are arranged on the outer side of the pipe wall of the heating pipe, the inlet of the conveying mechanism is connected to the outlet of the heating mechanism, the outlet of the conveying mechanism is connected to one end of the heating pipe, and the other end of the heating pipe is connected to the inlet of the heating mechanism.
Owner:KARAMAY JUNDING MECHANICAI & ELECTRICAL EQUIP CO LTD +1

CNTs / PDMS microstructure triboelectric nanogenerator and its fabrication method

This invention provides a method for fabricating a CNTs / PDMS microstructure triboelectric nanogenerator, comprising the following steps: PCL particles are poured into the barrel of a 3D printing device and formed onto a printing receiver plate side by near-field direct writing and fused deposition modeling to obtain a PCL film with two patterns; a mixture of PDMS and a curing agent is stirred, carbon nanotubes are added and stirred further, followed by ultrasonication to obtain a mixed solution; the mixed solution is coated onto the PCL film, followed by vacuum treatment; the film is heated and dried to obtain a dielectric layer; the PCL on the film surface is removed to obtain a CNTs / PDMS dielectric layer; a copper foil is covered on the smooth surface of the dielectric layer as one end electrode, a PET layer is attached as a protective layer, and the other side is covered with copper foil to obtain another electrode; PET is then placed on top, and wires are led out from the two electrodes to connect to a load, thus obtaining the nanogenerator. This invention provides a method for fabricating a nanogenerator with low fabrication requirements and capable of producing nanogenerators with good overall performance.
Owner:NINGBO UNIV

A calcium silicate cement board production forming mold

The utility model relates to mould technical field, and disclose a kind of calcium silicate cement board production forming mould, comprising: base and two pieces of side stop, side stop is detachably connected with base and forms a frame body on the top of base, and casting cavity is formed inside frame body;Cooling structure, set in the inside of base for cooling base and cement board, cooling structure includes heat dissipation cavity, water inlet pipe and reflux pipe, heat dissipation cavity is opened in the inside of base, water inlet pipe and reflux pipe are fixedly connected with base and communicate with heat dissipation cavity, water inlet pipe is connected water source, by connecting water source to water inlet pipe, reflux pipe connects water pool, water pump can be set in water pool, water circulation is realized by water pump to water inlet pipe, radiator and other cooling components still need to be set in water pool, not repeated here, by the water of circulation, heat of base and cement board bottom is taken away, improve the heat dissipation speed of cement board bottom, inhibit cement board bottom heat accumulation, reduce the probability that cement board quality is influenced due to temperature difference too large.
Owner:HEBEI PUZHOU BUILDING MATERIALS TECH CO LTD

A limestone high efficiency crushing equipment

The invention discloses a limestone efficient crushing device, which belongs to the technical field of limestone production. It comprises a bag dust collector and a crushing box. The crushing box comprises a cover shell, a feed port is symmetrically arranged on the top of the cover shell, a primary crushing device is arranged below the feed port, the primary crushing device comprises two pairs of first bombardment plates, a material holding plate is movably arranged below the first bombardment plate, after the limestone entering from the feed port is bombarded and crushed by the first bombardment plate, the material holding plate moves to one side to cooperate with the first bombardment plate on one side to scrape the material and drop it into the first screen below, the first screen is inclined, coarser materials cannot pass through the first screen and roll into the first feeding channel, and finer materials can pass through the first screen and fall into the second feeding channel; a secondary crushing device is arranged in the second feeding channel to crush the finer materials for the second time and then drop them into the ultimate crushing device; an exhaust pipe is arranged on the side wall of the cover shell to communicate with the bag dust collector.
Owner:CHENXI COUNTY SHUNXING TRADE CO LTD

Composition for dyeing adhesive spray

The present invention relates to a method for preparing a hair cosmetic composition. The method includes treating a colorant with phytic acid; preparing a mixture comprising a colorant treated with phytic acid and a solvent; grinding the mixture for about 3 to 5 times by using an ultra-precision colloid grinder; adding a binder component to the mixture; and adding a propulsor to the mixture.
Owner:EBIN NEW YORK INC

Raw material dehydration device for nylon production

ActiveCN222598280Uuniform exposureVolatile evenlyElectric machineryDehydration
The utility model relates to the technical field of dehydration drying boxes, and discloses a raw material dehydration device for nylon production, which comprises a drying box, the left part of the drying box is fixedly connected with a base plate, the upper part of the base plate is fixedly connected with a motor, and the output end of the motor is fixedly connected with a support rod; the right parts of the supporting rods are fixedly connected with a drying roller, the exteriors of the supporting rods are fixedly connected with fixing plates, the fixing plates are rotationally connected into the drying box through limiting assemblies, the interior of the drying box is fixedly connected with a filter plate, the filter plate is arranged at the lower part of the drying roller, and the right part of the drying box is provided with a feeding pipe; the feeding pipe is inserted into the drying roller in a penetrating mode. According to the utility model, raw materials can be more uniformly exposed in a dehydration environment, water can be more uniformly volatilized from the raw materials, the drying roller can be effectively cleaned, and the accumulation of pollutants can be effectively prevented.
Owner:JINHU VEKSTAR CHEM FIBER CO LTD

Processing and forming method of carbon fiber crank

PendingCN119502377Aincreased contact surface areaAvoid frequent transfersFiberCarbon fibers
A carbon fiber crank machining and forming method comprises the steps that a metal blank is subjected to rough machining to form a first rough blank, and the first rough blank is subjected to lathe machining to form a metal ring with the stepped outer surface; an upper mold with a pouring gate and a lower mold with a stepped column body are closed, the stepped column body abuts against the upper mold after mold closing, short carbon fibers are injected into a mold cavity, a second rough blank is formed at the first temperature, and a spline hole with the stepped inner surface is formed in one end of the second rough blank; the second rough blank is machined through a milling machine to form a handle body, the surface of the handle body is cleaned, and the surface of the handle body is coated with a coating; and the metal ring is embedded into the spline hole and is bonded with the handle body resin at a second temperature to form a workpiece in one step.
Owner:SHENZHEN JIANKUN SPORTS EQUIPMENT CO LTD

Desulfurization of carbon dioxide-containing gases

PendingCN119403612Aincreased contact surface areaGas treatmentCarbon compoundsChemical reactionPhysical chemistry
Sulfur-containing compounds are removed from the crude CO2 by conversion to elemental sulfur in the Claus process and subsequent by hydrogenation of the Claus off-gas to convert residual sulfur-containing compounds to H2S, after cooling separation of water and subsequent compression, solid metal sulfides are formed by physical separation or by chemical reaction with solid metal oxides, followed by oxidative regeneration to remove H2S along with any other sulfur-containing impurities, producing purified COz and a recycle gas comprising at least one sulfur-containing compound, which recycle gas is recycled to the Claus process. Some of the H2S in the Claus tail gas may be first removed by selective and / or non-selective amine absorption in a tail gas treatment unit prior to removal of residual H2S and any other residual sulfur-containing impurities by the physical separation or chemical reaction step.
Owner:AIR PROD & CHEM INC

Chemical wastewater treatment device based on catalytic ozonation

The utility model provides a chemical wastewater treatment device based on catalytic ozonation, which relates to the technical field of sewage treatment and comprises a treatment mechanism, a guide mechanism is arranged on one side of the treatment mechanism, the treatment mechanism comprises a cavity, a reaction tank is arranged in the cavity, and a rotating roller is arranged on the inner surface of the reaction tank. According to the utility model, the ozone generator and the oxidizer are started at the same time, so that air flows of the ozone generator and the oxidizer enter the catalyst reactor at the same time, and a catalyst can further reduce the reaction activation energy, thereby accelerating the oxidation process; the method comprises the following steps: firstly, the valve is opened, so that a part of wastewater flows onto the detection plate, and then the water quality is detected through the detection table, so that the treated wastewater is ensured to meet the discharge standard or the quality requirement.
Owner:SICHUAN ZHONGDE SHENGDA ENVIRONMENTAL ENG CO LTD

Anti-degumming LED lamp bead of plum blossom-shaped LED support lamp cup packaging structure

The utility model provides an anti-degumming LED lamp bead of a plum blossom-shaped LED support lamp cup packaging structure. The anti-degumming LED lamp bead comprises a lens, a copper sheet support, an LED chip, packaging clear glue and a support lamp cup. A plum-blossom-shaped groove is formed in the inner side of the bracket lamp cup; the copper sheet support is embedded in the support lamp cup, and the middle of the copper sheet support is located at the bottom of the groove. A silver electroplating layer and a nickel electroplating layer are respectively arranged on the bottom surface and the top surface of the copper sheet bracket; the LED chip is arranged on the copper sheet bracket, and the LED chip is positioned in the groove; the packaging clear glue is arranged in the groove and covers the LED chip; the lens is arranged on the top of the support lamp cup. According to the LED lamp bead of the plum-blossom-shaped LED support lamp cup packaging structure, the bonding strength between the packaging glue and the support lamp cup is improved, the packaging glue is prevented from falling off or cracking, the reliability of the LED lamp bead is improved, and the service life of the LED lamp bead is prolonged.
Owner:JIANGXI YUMING SMART OPTOELECTRONICS CO LTD

Paper covered wire with high tensile strength

The utility model discloses a paper covered wire with high tensile strength, which relates to the technical field of paper covered wires, and comprises a copper wire inner core and a polyvinyl chloride particle filling layer, the outer wall of the copper wire inner core is provided with a smooth tin coating, and the outer wall of an anti-oxidation wax film layer is fixedly connected with a rubber insulating layer. And the polyvinyl chloride particle filling layer is arranged on the outer wall of the rubber insulating layer. According to the paper covered wire with high tensile strength, the seven copper wire inner cores are spirally distributed, so that the seven copper wire inner cores can be mutually encircled more tightly, gaps among the seven copper wire inner cores are filled with the polyvinyl chloride particle filling layer, the overall tensile strength can be improved, the insulating performance can be improved, current can be effectively isolated, current leakage or electric leakage can be prevented, and the service life of the paper covered wire is prolonged. The first tensile layer is matched with the second tensile layer, the outer wall of the first tensile layer is concaved into a plurality of semicircles, and the outer wall of the second tensile layer is convexly provided with a plurality of corresponding semicircles, so that the contact surface area of the first tensile layer and the second tensile layer is increased, and the overall tensile strength is improved.
Owner:JIANGSU LANGSHUN ELECTRIC CO LTD

Re-peel adhesive tape

The present invention provides a removable adhesive tape having excellent anchoring force between an adhesive layer and a substrate. The removable adhesive tape of the present invention comprises a substrate, a primer layer containing a binder resin and a filler, and an adhesive layer in this order. The removable adhesive tape has a protrusion in which at least a part of the filler protrudes from the primer layer to the adhesive layer, and the interface between the primer layer and the adhesive layer has a concavoconvexity.
Owner:NITTO DENKO CORP

An inner octagonal tube

ActiveCN224414539Uincreased contact surface areaLow contact pressureStructural engineeringPipe
The utility model discloses an inner octagonal pipe belongs to pipe material technical field, including the pipe body of octagonal structure, the inner chamber of pipe body also is octagonal structure, the pipe body includes work section, flared connecting section and embedded connecting section, is equipped with the transition section between work section and flared connecting section, and flared connecting section and transition section are located one end of work section, and embedded connecting section is located the other end of work section, flared connecting section, transition section work section and embedded connecting section integrated molding. The pipe body of octagonal structure in the utility model, compared with the circular pipe body, has increased the contact surface area between pipes, and is more stable in storage and transportation, is convenient for safe stacking, and the contact pressure between pipes is small, and the pipe is not easy to deform, the pipe cavity of octagonal shape, and the traditional circular pipe cavity of same inner diameter is greater than the pipe cavity capacity, and the drainage capacity is increased, the first wave crest on work section M type or n type increases the surface area of contact with the outside, and the pressure intensity that the pipe body receives reduces, and the service life is improved.
Owner:JIANGXI LIDA PLASTIC PIPE IND CO LTD

A micro-charged spray burner suitable for large flow and combustion method thereof

The present invention relates to the technical field of micro liquid combustion devices, and discloses a micro charged spray burner suitable for large flow, including a combustion chamber, an atomization unit, a multi-nozzle nozzle, a combustion mesh plate, a fuel supply box and a high-voltage DC power supply; the atomization unit includes an atomization chamber and a metal grid; the combustion chamber and the atomization chamber are separated by a combustion mesh plate, and the metal grid is arranged in the atomization chamber; the multi-nozzle nozzle includes a feed pipe and a plurality of spray layers arranged on the feed pipe, the top end of the feed pipe is sealed, and the plurality of spray layers are arranged at intervals along the axial direction of the feed pipe and close to the top end of the feed pipe, and the plurality of spray layers are all located in a cavity surrounded by the metal grid, and the bottom end of the feed pipe passes through the bottom end opening of the atomization chamber and is connected to the fuel supply box. The present invention also discloses a combustion method suitable for a micro charged spray burner with large flow, and its beneficial effects are: compact structure, high combustion efficiency, and broad application prospects.
Owner:SOUTH CHINA UNIV OF TECH

Spraying dust removal device

The utility model discloses a spraying dust removal device, belongs to the technical field of industrial waste gas treatment, and aims to solve the problems that a mechanism for cutting waste gas is lacked in the prior art, the washing and dust removal effect of washing water on the waste gas is poor, and when the gas inflow of the waste gas is large, part of the waste gas which is not completely dedusted is easy to directly pass through a spraying nozzle, so that the waste gas cannot be completely dedusted. And the dust removal effect is reduced. Comprising a bottom plate, a tank body is installed on the upper surface of the bottom plate, a through hole is formed in the side face of the tank body, a spraying assembly is installed at the through hole of the tank body, and a dust removal box is installed on the upper surface of the end, away from the tank body, of the bottom plate. According to the spraying dust removal device, waste gas is divided into small bubbles through the arrangement of the air dividing assembly, so that the contact surface area of the waste gas and washing water is increased, the dust removal effect is improved, all-directional spraying in the vertical direction of the tank body is achieved through the arrangement of the spraying assembly, and it is prevented that when the waste gas inlet amount is large, the waste gas enters the tank body. And the waste gas which is not completely sprayed and dedusted directly passes through the tank body.
Owner:ANHUI SHUNTAI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Cement self-tapping screw integrated nail

ActiveCN222436797UImprove fatigue resistanceincreased contact surface areaNutsBoltsStress concentrationScrew thread
The utility model relates to the technical field of screws, and discloses a cement self-tapping screw integrated nail which comprises a rod body, a protruding part is arranged at the lower end of the rod body, wide threads are arranged on the outer side of the rod body, and a first notch is formed in the outer side of the lower portion of the wide threads. According to the cement self-tapping screw integrated nail, the reflecting plate, the wide threads and the fine threads are arranged, a larger contact surface area can be provided when the screw is installed, the screw is made to be more difficult to loosen under vibration or repeated loads, the wide threads are matched with the fine threads, loads are distributed more evenly, the stress concentration condition is reduced, and the service life of the screw is prolonged. The first notches with the large slotting angle are formed, when the screw is drilled into a wall, the first notches are filled with wall materials, an additional friction surface can be formed at the threaded connection position, the anti-loosening performance is improved, connection is more stable and reliable, the number of the first notches is large, the area of the tangent plane of each notch is large, and the larger friction surface is provided; and the fastening effect is improved.
Owner:TEDUN (JIANGSU) FASTENER TECHNOLOGY CO LTD

Spherical segment porous foam rib layer plate cooling structure applied to turbine blade

The invention discloses a segment porous foam rib laminate cooling structure applied to turbine blades, which comprises a plurality of cooling units, and the plurality of cooling units are connected in series in any direction around one cooling unit by taking the cooling unit as the center to form the segment porous foam rib laminate cooling structure; wherein one cooling unit specifically comprises an impact pore plate and an air film pore plate which are arranged in parallel at an interval; the impact hole is formed in the center of the impact plate; the four air film hole channels are arranged at the four vertexes of the air film hole plate; the four turbulent flow columns are connected between the impact pore plate and the air film pore plate and are uniformly arranged around the impact pore in a surrounding manner; wherein the turbulent flow column is of a spherical porous foam rib structure; the impact holes, the gas film holes and the turbulent flow columns are all perpendicular to the flow direction of high-temperature fuel gas. According to the structure, the heat exchange intensity of the impact-gas film double-wall cooling technology is further improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV +1

A lead frame

ActiveCN224654006Uincrease the effective surface areaReduced risk of cracking
The utility model discloses a lead frame, including a plurality of parallelly arranged frame groups, and each frame group includes two frame units, and each frame unit includes a carrier area, and four pins located below the carrier area, the carrier area is divided into left carrier area and right carrier area, and the four pins are same in size and are commonly connected with middle ribs, and the two middle ribs of each frame group are equipped with connecting ribs, and the two frame units of each frame group are centrally symmetric with the center of connecting rib as the symmetry center, and the four pins of one frame unit are staggered with the four pins of another frame unit. The two frame units of each frame group are centrally symmetric with the center of connecting rib as the symmetry center, and the four pins of one frame unit are staggered with the four pins of another frame unit, so that the gap between the pins is fully utilized, thereby making the arrangement of the frame unit more compact, the material utilization rate of the lead frame is higher, and the waste of materials is reduced.
Owner:SHAOXING YAOPENG ELECTRONICS CO LTD

Water distributor

The utility model discloses a water distributor which comprises an upper contact panel in contact with oil or water, a plurality of oil filtering holes which are arranged at intervals are longitudinally formed in the upper contact panel, and a filter increasing plate which divides each oil filtering hole into two spaces and can increase the surface area in contact with the water or the oil is arranged on the upper contact panel and located in the corresponding oil filtering hole. Side connecting edges which extend downwards and are perpendicular to the upper contact panel are arranged on the front end face and the rear end face of the upper contact panel in order to be conveniently installed in the filtering container, and upper top plates which are easily installed in the filtering container are arranged on the two end faces of the upper contact panel; side supporting plates for stabilizing the filter increasing plate structures are arranged between the front side surfaces and the rear side surfaces of the filter increasing plates, in order to provide a buffer space, the upper ends of the side supporting plates are outwards inclined, and the lower ends of the side supporting plates are fixed on the filter increasing plates. The device has the advantages that the contact outer surface area with air is increased, and the effect of rapidly evaporating water is achieved.
Owner:KUNSHAN LONGJINGYUAN ENVIRONMENTAL PROTECTION EQUIP TECH CO LTD

Supergravity purification system for high-concentration hydrogen sulfide waste gas

ActiveCN222605937Uincreased contact surface areafast elutionDispersed particle separationProcess engineeringEnvironmental engineering
The utility model belongs to the technical field of hydrogen sulfide waste gas purification, and particularly relates to a supergravity purification system for high-concentration hydrogen sulfide waste gas, which comprises an asphalt modification tower, a lye tank, a combustion furnace and a supergravity machine, the liquid outlet end of the lye tank is connected with the liquid inlet end of the supergravity machine, and the gas outlet end of the supergravity machine is connected with the gas inlet end of the combustion furnace. According to the utility model, the supergravity machine is additionally arranged, so that the contact surface area of waste gas and liquid is increased, the mass transfer coefficient and the reaction rate are effectively improved, and H2S and part of organic matters in non-condensable gas can be favorably eluted by alkali liquor, so that the content of sulfur in tail gas generated after the non-condensable gas is combusted is reduced.
Owner:XUYANG ENG CO LTD