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39results about How to "Reduced dimensional accuracy requirements" patented technology
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Single-layer waveguide structure suitable for waveguide signal feed-in and waveguide transmission line
PendingCN119297560Alow costcompact structureAntenna adaptation in movable bodiesRadiating elements structural formsRadio frequency signalMaterials science
The invention provides a single-layer waveguide structure suitable for waveguide signal feed-in and a waveguide transmission line, and the structure comprises a PCB mainboard which is provided with a signal transmission bottom surface and a substrate integrated waveguide; the signal transmission bottom surface is used for being combined with a single-layer waveguide to form a waveguide cavity, and the signal transmission bottom surface forms an H-surface bottom surface of the waveguide cavity; a coupling slot is arranged in the substrate integrated waveguide area, and the coupling slot generates or receives a radio frequency signal fed in perpendicular to the tail end of the bottom surface of the H surface of the waveguide cavity. The upper-layer metallization surface of the PCB mainboard serves as the bottom surface of the H surface of the waveguide cavity, so that a single-layer structure of the waveguide antenna is realized, the structure is more compact, the process is simpler, and the material cost is lower.
Owner:SHANGHAI WAVELAND TECHNOLOGY CO LTD +1
Building external wall thermal insulation structure easy to disassemble and assemble
ActiveCN119593516Aeasy to operateQuick assembly and disassemblyCovering/liningsWallsStructural engineeringHeat conservation
The invention discloses a building external wall heat preservation structure easy to disassemble and assemble, and belongs to the technical field of building external wall heat preservation, the building external wall heat preservation structure easy to disassemble and assemble comprises a mounting plate, a heat preservation plate is mounted in the mounting plate, a setting assembly is arranged in the mounting plate, a locking and adjusting assembly is arranged at one end of the mounting plate, and a disassembly assisting assembly is arranged in the mounting plate; the peripheral side faces of the heat preservation plate are tightly pressed through expansion of the setting assemblies, so that the heat preservation plate is rapidly installed in the installation plate, meanwhile, a gap between the heat preservation plate and the installation plate is blocked, the construction efficiency is improved, the requirement for the size precision of the heat preservation plate is effectively lowered, and the construction cost is reduced. The expansion state of the setting assembly is locked through the arranged locking and adjusting assembly, meanwhile, the expansion degree of the setting assembly can be adjusted through the arranged locking and adjusting assembly, a good expansion sealing effect can be achieved for heat preservation plates with different thicknesses, the heat preservation plates can be automatically disassembled through the arranged disassembly assisting assembly, and the disassembly efficiency is improved. And the insulation board is more convenient and labor-saving to disassemble.
Owner:YUN COUNTY JINGE ENG CONSTR CO LTD
Welding method for butt weld of steel plate
PendingCN119140960AImprove adhesionHigh dimensional accuracy requirementsArc welding apparatusFillet weldButt welding
The invention relates to the field of welding processes of steel structural members, in particular to a welding method for butt welding seams of steel plates, which is suitable for welding seams under the condition that a gap between a first steel member to be welded and a second steel member to be welded is large. Comprising the following steps that a, the component size and the weld joint gap and truncated edge size between a first steel component and a second steel component are checked; b, manufacturing a liner plate; c, two magnetic supports of a connecting rod of the gasket positioning device are arranged between the gasket plate and the first steel member and between the gasket plate and the second steel member, and the two magnetic supports are attracted to the bottoms of the first steel member and the second steel member through magnetic pieces; d, the liner plate is fixed to the first steel member and the second steel member through fillet weld spot welding, and then the liner positioning device is pulled out; and e, purging and cleaning the welding position area of the welding seam, and then completing the remaining welding process. The method is particularly suitable for welding process occasions with large welding gaps of steel structural parts of steel box bridges.
Owner:CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR +1
Lifting type anti-explosion safety door
ActiveCN222478530Uadjustable widthReduced dimensional accuracy requirementsLighting and heating apparatusCorner/edge jointsElectric machineryStructural engineering
Owner:HANGZHOU HONGYE CIVIL AIR DEFENSE EQUIP CO LTD
Mn-zn ferrite material and preparation method therefor
PendingEP4378910A4Improve permeabilitylow temperature coefficient of the Mn-Zn ferrite materialInorganic material magnetismIron compounds
Disclosed herein are a Mn-Zn ferrite material and a preparation method therefor. The Mn-Zn ferrite material comprises a main component and an auxiliary component; the main component comprises Fe2O3, ZnO and MnO; the auxiliary component comprises CaCO3, Bi2O3 and CoO; on the basis of the total weight of the main component, the content of CoO is 1000-5000 ppm. The preparation method comprises: (1) mixing each member of the main component, then pre-firing, and obtaining a pre-fired mixture; (2) adding each member of the auxiliary component to the pre-fired mixture, and mixing to obtain a ferrite slurry; (3) granulating the ferrite slurry, and pressing and forming after granulation to obtain a manganese-zinc ferrite blank, and (4) sintering and cooling the manganese-zinc ferrite blank to obtain the Mn-Zn ferrite material. The Mn-Zn ferrite material provided in the present application is a material having high magnetic permeability and a low temperature coefficient.
Owner:HENGDIAN GRP DMEGC MAGNETICS CO LTD
A baby carriage swing mechanism and a baby carriage using the same
ActiveCN113859405BReduced dimensional accuracy requirementsEnsure torque balanceChildren cyclesDrive wheelElectric machinery
The present invention discloses a baby carriage swing mechanism and a baby carriage using the swing mechanism, and relates to a baby carriage, and aims to solve the problem that the baby carriage does not have a swing function. The main points of the technical solution are: a baby carriage swing mechanism, comprising a swing motor and a swing shaft, wherein the swing shaft comprises an outer shaft and an inner shaft plugged into the outer shaft, wherein the swing motor drives the outer shaft to rotate, and eccentric motion components are respectively arranged at both ends of the outer shaft, wherein the eccentric motion components comprise an eccentric wheel fixed to the outer shaft, and a connecting seat rotatably sleeved on the eccentric wheel, wherein the connecting seat is installed on the baby carriage; the outer shaft is respectively extended at both ends of the inner shaft, and a driving wheel is rotatably sleeved, and the driving wheel is transmission-connected with a driving motor. A baby carriage swing mechanism of the present invention adopts a structure combining an eccentric wheel and a connecting seat to give the baby carriage a swing function.
Owner:ZHEJIANG JIAJIA RIDE ON
Water outlet device with double control waterway
ActiveCN224397214USimple designReduced dimensional accuracy requirementsOperating means/releasing devices for valvesMultiple way valvesMarine engineeringOutfall
The utility model provides a kind of water outlet device with double-control waterway, including the body of middle passage, valve core being arranged in the body, further include the valve core seat being arranged in the body, electric control switch being installed on valve core seat;At least one water inlet channel is arranged in the valve core seat along vertical direction, and top end surface forms the mounting surface compatible with valve core;Valve core seat is provided with two water outlet channels passing through mounting surface, and side wall is provided with at least one water outlet communicating with water outlet channel;The outer periphery of valve core seat is provided with the first sealing installation groove for installing first sealing member, which is placed in the outer periphery of water outlet;Electric control switch is used to control the communication of one water outlet channel and water outlet.The scheme can control two waterways through electric control switch and valve core respectively, that is, when electric control switch fails, the opening and closing state of valve core can also be adjusted by handle, and then the water outlet of waterway is controlled.
Owner:GUANGDONG WEIXIANG SANITARY WARE
Forming device of multifunctional high-pressure composite rubber pipe
PendingCN119610537Aeasy to produceReduce processing difficultyCoatingsMechanical engineeringMaterials science
The invention relates to the field of injection molding equipment, in particular to a multifunctional high-pressure composite rubber pipe molding device which comprises a base frame, a mold, a fixing assembly and a mold driving assembly. A closed injection molding cavity for injection molding of the outer pipe is formed among the inner surface of the upper mold, the inner surface of the lower mold and the outer surface of the inner pipe fixed by the fixing assembly; the base frame is further provided with a distance adjusting assembly used for adjusting the distance between the left clamping piece and the right clamping piece. A moving assembly capable of feeding the inner pipe in the horizontal state into the fixing assembly to enable the inner pipe to be fixed is installed on the front side of the base frame. An injection unit used for injecting polyurethane fluid into the injection molding cavity is arranged in front of the base frame, an existing molding method of the multifunctional high-pressure composite rubber pipe has the problems that the production process is tedious and machining difficulty is large, and the device is simple and convenient in production process and small in machining difficulty.
Owner:SHANDONG HAISHENG OCEAN ENG GRP
A sparkling water shower head
ActiveCN224443316UReduce installation cumbersomenessReduced dimensional accuracy requirementsMechanicsDimensional precision
This utility model provides a sparkling water shower head, including a shower head body and a sparkling water component. The outlet cover of the sparkling water component is provided with a through-threaded connecting groove on its periphery. So, regardless of the final installation angle of the outlet cover, the connecting groove can provide air to the water outlet body. This reduces the dimensional accuracy requirements of the outlet cover and its installation structure with a simple structure, and also reduces the complexity of installing the outlet cover, eliminating concerns about poor air intake.
Owner:JIANGMEN OCTOBER SANITARY WARE CO LTD
OCT (optical coherence tomography) imaging catheter connecting device and method
The invention belongs to the field of optical medical equipment, and relates to an OCT (optical coherence tomography) imaging catheter connecting device and method.The OCT imaging catheter connecting device comprises a base, a guiding assembly and a driving assembly; the guiding assembly and the driving assembly are installed on the base. The guide assembly comprises a catheter seat used for fixing an OCT catheter, an adapter fixing seat used for fixing the SC adapter assembly, a slip ring mounting seat used for fixing an optical fiber slip ring, and a guide rod or a guide rail used for enabling the slip ring mounting seat, the adapter fixing seat and the catheter seat to build linear axial movement; the driving assembly comprises a stepping motor, a lead screw nut and a lead screw. The outer end of the lead screw nut is fixed on the adapter fixing seat through a pin rod; the center of the lead screw nut is sleeved at the front end of the lead screw through a threaded hole; the rear end of the lead screw is in transmission connection with the stepping motor, and the front end of the lead screw penetrates through the adapter fixing base. The stepping motor and the lead screw drive the lead screw nut to move front and back, so that the adapter fixing base is pushed to be close to or away from the catheter base, and stable butt joint of the OCT catheter connecting device and the catheter is achieved.
Owner:NANJING FORSSMANN MEDICAL TECH CO LTD
Optical positioning target and surgical system
ActiveCN222516977UReduced dimensional accuracy requirementsEasy to identify and locateDiagnosticsSurgical navigation systemsReflective layerReoperative surgery
The utility model relates to an optical positioning target and a surgical system. The optical positioning target comprises: a target support having a fixing member located on a second surface; the reflective mark comprises an installation thin plate and a reflective layer, the reflective layer is arranged on the installation thin plate, the reflective mark is provided with a matching part corresponding to the fixing part, and the matching part is matched with the fixing part so that the reflective mark can be installed on the target support in a pluggable mode. And the reflective layer can be identified by navigation equipment. Therefore, the reflective mark is detachably mounted on the target bracket by adopting the pluggable matching of the fixing part and the matching part, so that the reflective mark and the target bracket can be quickly disassembled and assembled, the assembly complexity of the reflective mark and the target bracket can be simplified, the mounting operation is convenient, and the production cost is reduced. Moreover, the reflective layer is arranged on the installation thin plate and can reflect light so as to facilitate recognition and positioning of navigation equipment, the size precision requirement of the reflective mark is reduced, and the machining difficulty and cost are reduced.
Owner:SUZHOU MICROPORT ORTHOBOT CO LTD
Orifice plate mounting structure of adsorption tower section, adsorption tower section and adsorption tower
The present invention relates to the field of engineering equipment technology, and provides an orifice plate installation structure of an adsorption tower section, an adsorption tower section and an adsorption tower, wherein the installation structure comprises: an installation frame and an orifice plate; the installation frame is provided with a plurality of installation ports; the orifice plate is detachably connected to the installation frame corresponding to the installation ports; wherein the peripheral wall of at least one side of the orifice plate is provided with an overlap portion, and the overlap portion overlaps and cooperates with the installation frame at the installation port to achieve positioning of the orifice plate and the installation frame. The present invention realizes rapid installation and disassembly of the orifice plate and the installation plate by providing an open groove-like structure that cooperates with the installation frame on the orifice plate, thereby saving the drilling cost and bolt procurement cost required for the bolt connection structure. Compared with the bolt connection structure, the requirements for the dimensional accuracy of the workpiece are low, the manufacturing difficulty is low, the safety of maintenance operations is improved, and sparks may be generated when the bolt pair is destructively removed due to rust, thereby posing a safety hazard risk to the equipment and maintenance personnel.
Owner:HUNAN ZHONGZHI CHANGTIAN HEAVY IND TECH
Welding method for improving qualified rate of curve I-level fillet weld
The invention discloses a welding method for improving the percent of pass of a curve I-level fillet weld in the field of steel structure manufacturing, which comprises the following steps of: manufacturing a backing plate by using a material which is the same as a welding base material, and mounting the backing plate at a welding part of a web plate and a bottom plate or a top plate, a gap is reserved between the side, close to the web, of the backing plate and the web by inserting the backing positioner, then fillet weld spot welding fixing is conducted on the end, tightly attached to the bottom plate or the top plate, of the backing plate, the backing positioner is taken out after fixing is conducted, and finally welding is conducted on main weld welding position areas between the backing plate and the web and between the web and the bottom plate or the top plate. According to the invention, a ceramic gasket is not adopted, but steel plate waste materials are adopted as the gasket, so that the welding cost is reduced, the adhesive force with deposited metal is very good, welding is easy, the welding difficulty is reduced, and the method has very good adaptability to the condition that the assembling clearance of a curve structure is difficult to be completely uniform and consistent; therefore, the welding qualification rate is higher and more stable than that of a ceramic gasket, and the rework rate is reduced.
Owner:CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR +1
Split type headlamp and front protective cover size control method and structure
ActiveCN119218092AGuaranteed smoothnessSmall size errorOptical signallingCar manufacturingStructural engineering
The invention belongs to the technical field of automobile manufacturing size engineering, and particularly relates to a size control method and structure for a split type headlamp and a front protective cover. Wherein the front-end frame is fixed on a vehicle body, the front protective cover is fixed on the front-end frame, split headlamps are respectively arranged on two sides of the front protective cover, a front-end frame positioning mechanism is arranged at the front end of the frame, and a first split headlamp positioning mechanism and a second split headlamp positioning mechanism are respectively arranged at the lower end part and the outer side of the front end of the frame; according to the installation tool, the split type headlamp is firstly installed through the installation tool, breaking of an automobile body size chain ring is achieved, and therefore the space position size of the split type headlamp is guaranteed; then a front protective cover is installed, the spatial position size of the front protective cover is guaranteed by means of the same positioning points of the harness and the front protective cover, and therefore full-size control over the headlamp and the front protective cover is guaranteed; the problems caused by poor matching of the peripheral sizes of the split type headlamp and the front protective cover are solved.
Owner:CHINA FAW CO LTD
Foam packaging plate
ActiveCN222432940UEasy to fixReduced dimensional accuracy requirementsContainers to prevent mechanical damageInternal fittingsStructural engineeringPaper sheet
The utility model discloses a foam packaging plate which comprises a cuboid-shaped foam body, a plurality of installation grooves which linearly extend in the width direction and are arranged at equal intervals in the length direction are formed in the top of the foam body, and the two ends of each installation groove are communicated with the outside. Slots linearly extending in the length direction of the mounting groove are formed in the groove walls of the two sides of the mounting groove respectively, the two ends of each slot are communicated with the outside, a hard paper sheet with the edge clamped into the slots is arranged in the mounting groove, and at least three cross-shaped holes arranged at equal intervals in the length direction of the hard paper sheet are formed in the hard paper sheet; a goods inserting hole formed in the foam body is formed below each cross-shaped hole. The foam packaging plate has the advantages of being convenient to machine, good in protection effect, complete in overall function and high in practicability.
Owner:ZHEJIANG KANGGU PACKAGING CO LTD
Power supply assembly
ActiveCN222300892UReduced dimensional accuracy requirementsquick fixCoupling contact membersElectrical connectionElectronic equipment
The utility model relates to the technical field of power supplies of electronic equipment, in particular to a power supply assembly, which comprises a connecting piece, a rotary clamping piece and a fixing piece, the connecting piece is used for electrically connecting a power supply guide rail and an electronic tag, the rotary clamping piece is rotatably arranged in the connecting piece, and the rotary clamping piece is clamped with the power supply guide rail. The fixing piece is arranged in an electronic tag needing to be connected, and a U-shaped groove is formed in the lower end of the connecting piece in an inward concave mode. The fixing piece is in a U shape, and the fixing piece is arranged in the U-shaped groove in an inserted mode. The device is simple in structure, few in required parts, simple in disassembly and assembly operation and convenient for field installation operation, the connecting piece and the power supply guide rail are fixed only by adopting the rotary clamping piece during assembly, the connecting piece and the electronic price tag are fixed by adopting the fixing piece, the requirement on the size precision of the shell of the electronic price tag is low, and the yield can be effectively improved.
Owner:FUJIAN XIAOFEI TECH CO LTD
Welding method for improving nondestructive testing qualified rate of main welding seam of curve steel box bridge
PendingCN119140947AImprove adhesionHigh dimensional accuracy requirementsWelding accessoriesFillet weldWeld seam
The invention relates to the field of steel structural part welding processes, in particular to a welding method for improving the nondestructive testing qualification rate of a main welding seam of a curve steel box bridge, which is suitable for welding of a welding seam with a large gap, and comprises the following steps: a, according to BIM model data and a design drawing, carrying out part cutting blanking and welding groove treatment; b, a bottom plate, a top plate and a web plate are assembled on the ground tire through a forward assembling method or a reverse assembling method, and after the assembling size is checked to be qualified, spot welding is conducted for firm fixing; c, a liner plate is manufactured, and the liner plate, the bottom plate and the top plate are made of the same material; d, arranging two zirconia ceramic rods of a connecting rod of the liner positioning device between the bottom of the liner plate and the bottom plate; e, the side, tightly attached to the web, of the liner plate is fixed through fillet weld spot welding, and then the liner positioning device is pulled out; and f, the welding position area of the main welding seam is purged and cleaned, and the remaining welding process is completed. The method is suitable for the welding process of the main welding seam of the curved steel box bridge.
Owner:CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR +1
Paper sticking cylinder storage box
ActiveCN222388552Usmoothly fall intoeasy to operateNon-removalbe lids/coversDischarging meansMechanical engineeringRotating drum
The utility model provides a paper sticking drum storage box, which relates to the technical field of storage boxes, and comprises an outer box, an inner shell and a rotating drum, the outer box is provided with a cover body, the bottom end of the outer box is provided with a first opening for the paper sticking cylinder to fall out, and the first opening is connected with a bottom support for supporting the paper sticking cylinder falling out of the first opening; the inner shell is fixedly connected into the outer box and provided with a containing cavity used for containing the paper sticking barrel, and the containing cavity is provided with a second opening allowing the paper sticking barrel to rotate to the first opening. The rotating cylinder penetrates through the containing cavity and is provided with a third opening allowing a single paper sticking cylinder to enter, the two ends of the rotating cylinder are rotationally connected with the outer box so as to allow the third opening to directly face or deviate from the second opening, and the two ends of the third opening extend to the gap between the inner shell and the outer box. The paper sticking cylinder storage box has the advantages that dustproof storage of a plurality of paper sticking cylinders is achieved, and the paper sticking cylinders are convenient to take and use by personnel.
Owner:HEILONGJIANG FEIHE DAIRY CO LTD +4
Winding die head
ActiveCN119448698Areduce manufacturing costReduced dimensional accuracy requirementsManufacturing stator/rotor bodiesStructural engineeringMechanical engineering
Owner:SHENZHEN JINMINJIANG RIVER MECHANICAL & ELECTRICAL EQUIP
Auxiliary positioning tool for lamp and positioning and mounting method of lamp
PendingCN119428923AEliminate Manufacturing TolerancesReduced dimensional accuracy requirementsVehiclesComputer hardwareLight fixture
The invention provides a lamp auxiliary positioning tool and a lamp positioning and mounting method, and relates to the technical field of automobile lamp mounting, the lamp auxiliary positioning tool comprises a fixing frame, a positioning block assembly and a positioning pin assembly, and the fixing frame is used for being detachably mounted on an automobile body framework; the positioning block assembly is provided with an abutting end used for abutting against the X-direction end face of the lamp. The abutting end can move in the X direction. The positioning pin assemblies are provided with positioning pins used for penetrating through positioning holes formed in the lamp in the X direction. The positioning pin in at least one positioning pin assembly can move along the Y direction and the Z direction; the lamp can be adjusted in the X direction, the Y direction and the Z direction, so that the positioning and mounting of the lamp meet the clearance surface difference tolerance requirement, and the mounting consistency can be ensured when the lamp and a vehicle body framework are produced in batches; and the size precision requirement of the lamp and the position precision requirement of the mounting hole in the vehicle body framework are reduced, and the production qualification rate of the lamp and the vehicle body framework can be improved.
Owner:江苏开沃汽车有限公司
Rigidity valve
PendingCN121993535ASimple structureReduced dimensional accuracy requirementsSpringsLift valveVALVE PORTValve seat
The invention discloses a rigidity valve which comprises a valve seat, a valve block component and a guide sleeve. The guide sleeve and the valve seat are in limiting connection in the axial direction, the valve block component is inserted into the guide sleeve, and the valve block component can move in the axial direction relative to the guide sleeve so as to close or open a valve port part of the valve seat; the valve block component comprises a valve block and two sealing rings, the two sealing rings are arranged in the axial direction, the sealing rings are located between the valve block and the guide sleeve, and the sealing rings are fixedly connected with the valve block; the sealing ring is provided with a sealing lip, and the sealing lip is of an annular structure extending outwards from the peripheral face of the sealing ring. The inner hole part of the guide sleeve comprises a first inner hole section and a second inner hole section, and when the valve port part is closed by the valve block part, the first inner hole section and the second inner hole section are in sealing fit with the two sealing lips respectively. The sealing related component of the rigidity valve is simple in structure, low in requirement for size precision, capable of reducing machining difficulty and convenient to assemble.
Owner:ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
Multidirectional die forging forming die and forming method for flange forgings with different diameters on two sides
InactiveCN119114820Areduce manufacturing costReduced dimensional accuracy requirementsForging/hammering/pressing machinesMachiningIndustrial engineering
The invention relates to the technical field of different-diameter flange machining, in particular to a multidirectional die forging forming die and a multidirectional die forging forming method for a double-side different-diameter flange forge piece, and adopts the multidirectional die forging forming die and the multidirectional die forging forming method for the double-side different-diameter flange forge piece. The double-side different-diameter flange forge piece which is free of folding and full in forming can be formed from a cylindrical blank through one-fire one-forging, the requirement for the size precision of the diameter and the length of the blank is not high, the requirement for the placing position precision of the blank is also not high, the forging process is simple and easy to operate, automation can be achieved, the yield and the production efficiency of the forge piece are improved, and the production cost is reduced. And the production cost of the double-side different-diameter flange forge piece is reduced.
Owner:CHINA MCC22 GROUP CORP LTD +1
Docking structure and engine compartment vertical plate splicing and positioning device
ActiveCN119458207AReduced dimensional accuracy requirementsEasy to debugWork holdersClassical mechanicsStructural engineering
The invention relates to the technical field of automobile manufacturing, in particular to a Docking structure and engine compartment vertical plate splicing and positioning device which comprises a mounting frame (1). A vertical plate gripper supporting and fixing structure, a vertical plate gripper positioning structure and a vertical plate gripper sensing structure are respectively arranged on the mounting frame (1); the vertical plate gripper supporting and fixing structure, the vertical plate gripper positioning structure and the vertical plate gripper sensing structure are all connected with a vertical plate gripper. Compared with the prior art that a hole pin type positioning mechanism is adopted, the vertical plate gripper can be spliced with the Docking from top to bottom, and the quality problems that in the prior art, a hole pin type positioning mechanism is adopted, transverse splicing can only be met, and dislocation is caused in the splicing process of a vertical plate and an engine cabin are solved; the assembling quality can be guaranteed, the requirement for the dimensional precision of the vertical plate part is low, the assembling moving track of the robot is easy to debug, and the station efficiency can be effectively improved.
Owner:CHERY AUTOMOBILE CO LTD
Cylindrical steel structural part welding method
PendingCN119140945AImprove adhesionHigh dimensional accuracy requirementsArc welding apparatusFillet weldSpot welding
The invention relates to the field of steel structural part welding processes, in particular to a cylindrical steel structural part welding method suitable for weld joint welding under the condition of a large gap, which comprises a backing plate and comprises the following steps of: a, checking the size of a component and the size of a weld joint gap and a truncated edge between a first steel component and a second steel component; b, manufacturing a liner plate; c, a magnetic support at one end of a connecting rod of the gasket positioning device is arranged between a whole formed by the first steel member and the second steel member and the gasket plate, and the magnetic support is attracted to the bottom of the first steel member and the bottom of the second steel member through magnetic pieces; d, the liner plate is fixed to the first steel member and the second steel member through fillet weld spot welding, and then the liner positioning device is pulled out; and e, purging and cleaning the welding position area of the welding seam, and then completing the remaining welding process. The method is particularly suitable for welding process occasions with large welding gaps of cylindrical steel structural parts.
Owner:CHINA 19TH METALLURGICAL CORP CHENGDU CONSTR +1
A dual-channel heating unit water heater
This utility model discloses a dual-channel heating unit water heater, wherein the bottom of the shell is provided with multiple pairs of longitudinally arranged baffles, the middle part of the water tank is provided with a partition, the middle shell is fixed to the top of the water tank, each baffle is inserted into the water tank, and the bottom of each baffle abuts against the bottom of the water tank to form a reciprocating and narrow flow channel. Each baffle is also provided with concave and convex textures on the outer side, and each baffle also has a slot connecting to the top of the middle shell. Each slot extends to the front and rear ends of the baffle, and each slot is also provided with an inwardly protruding limiting part on the inner side to divide the slot into multiple insertion chambers. Multiple heating packs are inserted and fixed in the corresponding insertion chambers. This utility model optimizes the flow channel in the water tank by setting baffles integrated with the middle shell, thereby achieving the effects of improving the matching of the whole vehicle end, accelerating the flow rate of coolant in the water chamber, improving heat exchange efficiency, and preventing local overheating.
Owner:ZHEJIANG KEBOLE NEW ENERGY TECH CO LTD
Shock absorber combination valve and shock absorber
ActiveCN222502515UChange the circulation areaRealize the designSpringsShock absorbersShock absorberPhysics
The utility model provides a shock absorber combination valve and a shock absorber. The shock absorber combination valve comprises an electromagnet assembly, a cylindrical valve body and a passive valve assembly which are sequentially arranged in a shock absorber cylinder body. A sliding pin, a damping seat and a main valve element assembly are arranged in the valve body. A first cavity is formed between the damping seat and the main valve element assembly, a second cavity is formed between the damping seat and the electromagnet assembly, the first cavity is communicated with the compression working cavity, and the second cavity is communicated with the recovery working cavity through a throttling channel arranged on the valve body; a first one-way valve unit which is in one-way conduction in the direction pointing to the second cavity is arranged between the sliding pin and the damping seat, a second one-way valve unit which is in one-way conduction in the direction pointing to the first cavity is arranged between the damping seat and the main valve element assembly, and the electromagnet assembly drives the sliding pin to move in the axial direction of the valve body. The flow area between the first cavity and the second cavity can be changed. The combined valve of the shock absorber is beneficial to platform design and manufacture.
Owner:HYCET TRANSMISSION SYST (JIANGSU) CO LTD
Preparation method of thin-wall type high-strength composite drainage air bag
PendingCN119526794AReduced dimensional accuracy requirementsReduced risk of stickingHollow articlesGlass fiberUltimate tensile strength
The invention discloses a preparation method of a thin-wall type high-strength composite drainage air bag, and relates to a preparation method of a drainage air bag which is composed of an air bag top cover, an air bag body, a rubber flange and an easily-broken part. The air bag top cover is made of glass fiber reinforced plastic and carbon fiber composite materials, a water pushing face is formed in the drainage process to discharge water in the cabin, and after water is discharged, the top cover is located on the inner side of the drainage hole. The air bag main body is adhered by high-strength double-sided adhesive fabric, and the edge position of the air bag top cover is subjected to double-layer reinforcement; the rubber flange is made of high-strength fabric, and the vertical face bottom is subjected to double-layer reinforcement. The easy-to-break part is made of low-strength fabric, one end of the easy-to-break part is attached between the air bag body and the top cover, and the other end of the easy-to-break part is attached / pressed in a reserved groove of the rubber flange; the drainage air bag prepared by the invention is formed by compounding the semi-hard top cover (glass fiber reinforced plastic carbon fiber composite material) and the adhesive tape, and the air bag is firmer and realizes light weight.
Owner:SHENYANG RUBBER RES & DESIGN INST CO LTD
A metal chip collection tool
The utility model discloses a metal chip collection tool belongs to the field of aviation manufacturing maintenance technology, is the blocky integral structure, its bottom surface and structural member are pasted, its upper surface is made into the inclined plane that is inclined to head, and the front and rear metal chip lead-out hole is made between bottom surface and upper surface, and the opening of metal chip lead-out hole on the upper surface is the working groove hole, and the through hole is made as the contact groove hole at the working groove hole for the rivet or screw that is exposed for cutting, is used to; the circular groove is made to the tail end surface of metal chip collection tool, is used for connecting metal chip collection bottle, and the drill bit passes through working groove hole and contact groove hole and carries out cutting decomposition, and the metal chip enters metal chip collection bottle through metal chip lead-out hole and realizes collection. The utility model can collect the metal chip automatically while decomposing the rivet or screw, and the operation is simple, does not need to help pneumatics or electric device, improves the feasibility of operator's operation in the narrow space.
Owner:DALIAN CHANGFENG IND CORP
An ultrasonic endoscope
ActiveCN224711129UInsert rotational degrees of freedomReduced dimensional accuracy requirements
The utility model discloses an ultrasonic endoscope, include: the insertion part, including for inserting into the body's insertion pipe and the insertion pipe sleeve connected in the insertion pipe proximal end, operating part, including the fixed pipe of connecting in the insertion part sleeve proximal end, the compression ring is screwed on the outer periphery of insertion pipe sleeve, the proximal end and the distal end of fixed pipe are opposite, and the compression ring is used for realizing the axial compression of insertion pipe sleeve and fixed pipe, adjustable locking piece, along the radial activity of fixed pipe is connected in fixed pipe, can lock the relative circumferential rotation between insertion pipe sleeve and fixed pipe completely. Through the adjustable locking piece of radial activity setting of multiple along fixed pipe is additionally established on fixed pipe, through simple dismounting can adjust the installation angle of insertion part, reduces assembly accuracy requirement and operation difficulty, and reduces the size accuracy requirement of insertion pipe sleeve and fixed pipe and other parts, reduces the cost of generation, improves product yield.
Owner:INNERMEDICAL CO LTD
Novel printer
ActiveCN222628973Upromote prolapsereduce resistanceTypewritersOther printing apparatusComputer printingSpring force
The utility model provides a novel printer which comprises a base, a printing head, a rubber roller and a motor set used for driving the rubber roller to suck paper, an upper cover capable of rotating relative to the base is installed on the base, and a cover opening clamping hook mechanism is installed on the base. The uncovering clamping hook mechanism comprises two clamping hooks which are installed on the two sides of the installation cavity of the base respectively, and the clamping hooks can rotate relative to the base. The upper cover is provided with two clamping blocks matched with the clamping hooks, the cover opening clamping hook mechanism further comprises a clamping hook driving piece, a transmission piece for driving the two clamping hooks to rotate synchronously is arranged between the two clamping hooks, and a compression spring is arranged between the clamping hooks or the clamping hook driving piece and the base. The stable pressure spring force value can guarantee that the reset force of the two clamping hooks is consistent, the traditional piece can guarantee that the acting force of the two pressure springs is averagely transmitted to the two clamping hooks, the hand feeling is consistent when the clamping hooks are pressed and driven to rotate to be separated from the clamping blocks, and the cover opening experience is guaranteed. The compression spring can be installed only by being connected between the clamping hook and the base, production and assembly are facilitated, and the production efficiency is improved.
Owner:XIAMEN AIYIN TECHNOLOGY CO LTD